fix(plugins): attachment commands honor the composer lock

The creation request captures the attachments when it starts, so an attachment a plugin added or
removed afterwards was lost or left in the request. They refuse like the prompt commands.

docs/data-model.md

@@ -92,6 +92,7 @@ Each agent is stored as a separate JSON file, grouped by project directory.
 | `lastUserMessageAt`  | `string?` (ISO 8601)                     | Last user message timestamp                                                                                                                                                                                                                                                                                                                                                         |
 | `title`              | `string?`                                | User-visible title                                                                                                                                                                                                                                                                                                                                                                  |
 | `labels`             | `Record<string, string>`                 | Key-value labels (default `{}`). Paseo uses `paseo.parent-agent-id` for parentage and client-scoped `paseo.open-agent-tab.*` labels while managed subagent tabs are open — see [agent-lifecycle.md](./agent-lifecycle.md)                                                                                                                                                           |
+| `metadata`           | `Record<string, JsonValue>`              | Plugin-owned data (default `{}`). Paseo stores and forwards it and never reads a key. Set at creation or through `agent.metadata.update.request`; `null` in a patch removes a key                                                                                                                                                                                                   |
 | `lastStatus`         | `AgentStatus`                            | One of: `"initializing"`, `"idle"`, `"running"`, `"error"`, `"closed"`. `closed` means the record is resumable but has no live provider runtime; archive remains represented separately by `archivedAt`.                                                                                                                                                                            |
 | `lastModeId`         | `string?`                                | Last active mode ID                                                                                                                                                                                                                                                                                                                                                                 |
 | `config`             | `SerializableConfig?`                    | Agent session configuration (see below)                                                                                                                                                                                                                                                                                                                                             |
@@ -478,6 +479,7 @@ Array of workspace records. A workspace is a specific working directory within a
 | `archivedAt`                   | `string \| null` (ISO 8601)                                  | Soft-delete; required nullable                                                                                                                                                                |
 | `autoArchivedChangeRequestUrl` | `string \| null`                                             | Change request whose merged state triggered auto-archive. Restore replaces it with the current merged change request, when present, so repeated snapshots cannot archive the workspace again. |
 | `labels`                       | `string[]?`                                                  | Normalized display names assigned from this host's shared label catalog. Missing means unlabelled.                                                                                            |
+| `metadata`                     | `Record<string, JsonValue>`                                  | Plugin-owned data (default `{}`). Paseo stores and forwards it and never reads a key. Set at creation or through `workspace.metadata.update.request`.                                         |
 | `pinnedAt`                     | `string \| null` (ISO 8601)                                  | Pinned-to-top-of-sidebar timestamp; null means "not pinned"                                                                                                                                   |
 | `untrustedSource`              | `{ kind: "change_request", forge, number, headRepository }?` | Provenance captured when a cross-repository change request creates the workspace. Missing means repository automation is allowed; explicit setup removes the field.                           |
 

docs/plugins.md

@@ -511,13 +511,21 @@ need no change. See [catalogue ownership](providers.md#provider-snapshot-refresh
 `send()` resolves after acceptance. Publish operation completion, prompt disposition, turn state,
 configuration, permissions, persistence, and complete timeline snapshots through `onEvent()`.
 Route messages, structured commands, steering, and command side effects through `session.prompt`.
-Provider settings are toggle/select data that Paseo renders in the composer. Keep private options in
-the opaque `ProviderSessionConfig.providerOptions` object on `session.open`.
-It contains the provider defaults and per-agent overrides merged by the daemon.
+A provider's configuration is the opaque `ProviderSessionConfig.providerOptions` object on
+`session.open`. It contains the provider defaults and per-agent overrides merged by the daemon.
 Validate and apply it inside the provider; core does not know your option shape.
 See [provider options](custom-providers.md#provider-options) for configuration and
 merge semantics.
 
+The provider draws some of those keys in the composer by reporting `controls` and the values it runs
+(`providerOptions`) in `session.config`. A running-agent change arrives as
+`session.configure` with `changes.providerOptions` and follows the same apply-or-throw contract as
+built-in providers ([options flow](providers.md#options-flow)). `PluginAgentSession` in
+`packages/server/src/server/agent/plugin-provider.ts` is that adapter. A provider still reporting
+`settings` is read through `plugin-provider-options.ts`, which turns each setting into a control and
+its value into an option and is sent both shapes in `session.configure`; delete it with
+`COMPAT(plugin-provider-settings)`. The ACP shim still reports `settings`.
+
 Providers add an optional veto to daemon baseline cleanup through the per-session
 [runtime safety query](../public-docs/plugins/providers.md#permit-idle-runtime-cleanup).
 The daemon calls the same `AgentSession.canStopRuntime()` interface for built-ins and plugins;
@@ -636,6 +644,35 @@ Mounted surfaces and command invocations have shorter API lifetimes.
 Keep the client entry synchronous: return its cleanup function immediately and start asynchronous
 work inside it. See the maintained [composer pill example](../plugin-examples/local-plugin/client/main.tsx).
 
+## Contribute composer items
+
+`addComposerItem` mounts a plugin component in the agent, draft and New workspace composers. The
+public contract is the [composer items reference](../public-docs/plugins/reference.md#composer-items).
+
+The composer is two contexts, provided by two owners (`packages/app/src/composer/session.tsx`).
+`Composer` provides `ComposerInput` (prompt and attachments). `AgentControls` and
+`DraftAgentControls` provide `ComposerAgent` (provider, model, mode, thinking, options, metadata and
+their commands). `toPluginComposer` (`packages/app/src/plugins/composer-items/`) joins them into the
+`PluginComposer` an item reads, so a plugin cannot tell which composer a command reaches. Add a
+capability to `ComposerAgent` and both implementations; never branch on `context` in the model.
+
+Plugin `Toggle`, `Select` and `Action`, the thinking select and provider option controls all
+render through `ComposerControl` (`packages/app/src/composer/agent-controls/composer-control.tsx`),
+a toolbar icon or a row in the overflow sheet. Model and mode stay specialized but share its trigger,
+density and overflow. Plugin items count in the density presence in `layout.ts`, so a composer
+condenses to make room for them. A custom component renders wherever its item is placed, and an
+item that renders nothing still counts for density; there is no registration for either.
+
+A command runs against the owner's current state, not the render that built the callback. The
+draft's form (`openAgentForm`) and options (`openDraftOptions`) are plain stores for that reason,
+and `draftComposerAgent` rejects a provider the host does not offer or a model its loaded catalog
+does not list. `ComposerControl` owns the pending state and the error toast for callbacks that
+return a promise.
+
+The overflow sheet's content portals to the app root, away from the composer. Pass
+`useComposerSheetBridge()` as the sheet's `contextBridge`, or `useComposer()` returns nothing and
+the sheet draws no plugin rows.
+
 ## Contribute timeline items
 
 Timeline transformers and renderers are client contributions. The daemon's canonical rows and

docs/providers.md

@@ -71,6 +71,21 @@ or without a control.
   `"fast"` to the model's Fast tier and reports the id it runs through `openOptionsPatch` or the
   `applyOptions` result like any other value. The `featureValues` to `options` fold is separate
   and provider-agnostic; it stays at the protocol and legacy edges.
+- **Clients draw from the daemon's answer.** The app reads `controls` and `options` from the
+  agent snapshot for a running or closed agent. A draft and a profile form send everything they
+  would create with (seed, the provider's last-used control values once the provider has said it
+  still draws them, and the user's edits) in `provider.controls.list.request` and draw only what
+  comes back, so an alias such as a legacy Fast profile's `service_tier: "fast"` is resolved once,
+  by the daemon. A toggle shows over the last answer until its own answer arrives. The draft's
+  layers live in a plain model (`agent-controls/draft-options-model.ts`): applying a profile
+  replaces provider and options in one step, while choosing a provider by hand starts over. A
+  profile saves its stored options plus the form's edits, so options no control draws survive an
+  edit. A daemon without `server_info.features.providerOptionControls` sends `features` and
+  `featureValues`; `packages/client/src/compat/legacy-provider-options.ts` is the one place that
+  turns those into `controls` and `options` and back, so nothing in the app branches on it. A
+  create that carries options first lists the controls for its own provider, model, mode and
+  thinking level, since which options are controls differs by model, and sends those as
+  `featureValues`; callers do not prime anything.
 - **Provider-initiated changes.** A setting the provider changes on its own is an
   `options_changed` event. The daemon stores and forwards it and does not push the old value back.
 

packages/app/e2e/browser/agent-profile-modeless-preferences.spec.ts

@@ -62,7 +62,7 @@ async function readProviderFeaturePreferences(page: Page, provider: string): Pro
       const raw = localStorage.getItem(preferencesKey);
       if (!raw) return null;
       const preferences = JSON.parse(raw) as FormPreferences;
-      return preferences.providerPreferences?.[providerId]?.featureValues ?? null;
+      return preferences.providerPreferences?.[providerId]?.options ?? null;
     },
     { preferencesKey: CREATE_AGENT_PREFERENCES_KEY, providerId: provider },
   );
@@ -145,7 +145,7 @@ test.describe("Agent profiles repair modeless provider preferences", () => {
         provider: featureProviderId,
         model: featureModelId,
         modeId: "bypassPermissions",
-        featureValues: { fast_mode: true },
+        options: { fast_mode: true },
       },
     ]);
     const provider = await seedModelProvider({
@@ -181,7 +181,7 @@ test.describe("Agent profiles repair modeless provider preferences", () => {
       expect(createAgentRequest).toMatchObject({
         config: {
           provider: featureProviderId,
-          featureValues: { fast_mode: true },
+          providerOptions: { fast_mode: true },
         },
       });
     } finally {

packages/app/e2e/browser/plugin-composer-items.spec.ts

@@ -0,0 +1,12 @@
+import { test } from "../support/fixtures";
+import { withComposerControlsExample } from "../support/helpers/plugin-composer-items";
+
+test("a narrow composer's overflow sheet shows a plugin item's row", async ({ page }) => {
+  test.setTimeout(120_000);
+  await withComposerControlsExample(page, async (composer) => {
+    await composer.narrowTheWindow();
+    await composer.openAgentFeatures();
+    await composer.expectFeatureRow("Needs review");
+    await composer.expectFeatureRow("Insert checklist");
+  });
+});

packages/app/e2e/support/helpers/plugin-composer-items.ts

@@ -0,0 +1,59 @@
+import { expect, test, type Page } from "@playwright/test";
+import { gotoAppShell } from "./app";
+import { openAgentRoute } from "./mock-agent";
+import { connectNewWorkspaceDaemonClient } from "./new-workspace";
+import { copyPluginExample } from "./plugin-fixture";
+import { seedWorkspace } from "./seed-client";
+
+const PLUGIN_ID = "composer-controls-example";
+const NARROW = { width: 500, height: 800 };
+
+/** Runs `run` in an agent's composer with the composer-controls example installed. */
+export async function withComposerControlsExample(
+  page: Page,
+  run: (composer: {
+    narrowTheWindow(): Promise<void>;
+    openAgentFeatures(): Promise<void>;
+    expectFeatureRow(name: string): Promise<void>;
+  }) => Promise<void>,
+) {
+  const workspace = await seedWorkspace({
+    repoPrefix: "composer-items-",
+    title: "Composer items",
+  });
+  const agent = await workspace.client.createAgent({
+    provider: "mock",
+    cwd: workspace.repoPath,
+    workspaceId: workspace.workspaceId,
+    title: "Composer items agent",
+    model: "ten-second-stream",
+    modeId: "load-test",
+  });
+  const client = await connectNewWorkspaceDaemonClient({ ownProjects: false });
+  const previous = await client.getDaemonConfig();
+  const example = await copyPluginExample("composer-controls");
+  try {
+    await client.patchDaemonConfig({ pluginsEnabled: true });
+    await client.installDirectoryPlugin(example.directory);
+    await gotoAppShell(page);
+    await openAgentRoute(page, { workspaceId: workspace.workspaceId, agentId: agent.id });
+    await run({
+      narrowTheWindow: () =>
+        test.step("narrow the window until the composer folds its controls away", () =>
+          page.setViewportSize(NARROW)),
+      openAgentFeatures: () =>
+        test.step("open the agent features sheet", async () => {
+          await page.getByRole("button", { name: "Open agent features", exact: true }).click();
+        }),
+      expectFeatureRow: (name) =>
+        test.step(`the sheet has a row for "${name}"`, () =>
+          expect(page.getByRole("button", { name, exact: true })).toBeVisible()),
+    });
+  } finally {
+    await client.removePlugin(PLUGIN_ID);
+    await client.patchDaemonConfig({ pluginsEnabled: previous.config.pluginsEnabled });
+    await client.close();
+    await example.cleanup();
+    await workspace.cleanup();
+  }
+}

packages/app/src/agent-commands/cache/index.ts

@@ -18,7 +18,7 @@ export interface AgentCommandsDraftConfig {
   modeId?: string;
   model?: string;
   thinkingOptionId?: string;
-  featureValues?: Record<string, unknown>;
+  providerOptions?: Record<string, unknown>;
 }
 
 export function normalizeAgentCommandsCwd(cwd: string): string {
@@ -98,7 +98,7 @@ export function draftAgentCommandsQueryKey(input: {
     "thinking",
     draftConfig.thinkingOptionId ?? null,
     "features",
-    draftConfig.featureValues ?? null,
+    draftConfig.providerOptions ?? null,
   ] as const;
 }
 

packages/app/src/agent-controls/draft-options-model.test.ts

@@ -0,0 +1,149 @@
+import { describe, expect, it } from "vitest";
+import type { AgentOptionControl } from "@getpaseo/protocol/agent-types";
+import { isControlActive } from "./option-controls";
+import {
+  draftControlsRequest,
+  openDraftOptions,
+  ownDraftOptions,
+  viewDraftOptions,
+} from "./draft-options-model";
+
+const SPEED: AgentOptionControl = {
+  type: "select",
+  key: "service_tier",
+  label: "Speed",
+  defaultValue: "default",
+  choices: [
+    { value: "default", label: "Standard" },
+    { value: "priority", label: "Fast" },
+  ],
+};
+const WEB_SEARCH: AgentOptionControl = { type: "toggle", key: "web_search", label: "Web search" };
+
+function answer(
+  provider: string,
+  requestKey: string,
+  options: Record<string, unknown>,
+  controls = [SPEED, WEB_SEARCH],
+) {
+  return { provider, requestKey, controls, options };
+}
+
+describe("draft options model", () => {
+  it("draws a legacy Fast profile as the Fast tier the daemon resolved", () => {
+    const model = openDraftOptions({ provider: "codex", seed: { service_tier: "fast" } });
+    model.applyResolved(answer("codex", "k1", { service_tier: "priority" }));
+
+    const view = viewDraftOptions(model.getState(), { provider: "codex", requestKey: "k1" });
+
+    expect(view?.options).toEqual({ service_tier: "priority" });
+    expect(view && isControlActive(SPEED, view.options)).toBe(true);
+    // The daemon still gets the stored value to resolve, and so does create.
+    expect(ownDraftOptions(model.getState())).toEqual({ service_tier: "fast" });
+  });
+
+  it("applying a profile from another provider keeps its options through the provider change", () => {
+    const model = openDraftOptions({ provider: "claude" });
+    model.applyResolved(answer("claude", "k1", {}));
+
+    model.applyProfile({
+      provider: "codex",
+      options: { sandbox_mode: "read-only", service_tier: "fast" },
+    });
+    // The form follows the profile to its provider.
+    model.observeProvider("codex");
+
+    expect(ownDraftOptions(model.getState())).toEqual({
+      sandbox_mode: "read-only",
+      service_tier: "fast",
+    });
+    expect(model.getState().resolved).toBeNull();
+  });
+
+  it("choosing another provider by hand starts the options over", () => {
+    const model = openDraftOptions({ provider: "codex", seed: { sandbox_mode: "read-only" } });
+    model.setOption("web_search", true);
+
+    model.observeProvider("claude");
+
+    expect(ownDraftOptions(model.getState())).toBeUndefined();
+    expect(model.getState().resolved).toBeNull();
+  });
+
+  it("never pairs a manually chosen provider with the previous provider's options", () => {
+    const model = openDraftOptions({ provider: "claude" });
+    model.applyResolved(answer("claude", "k1", { fast_mode: true }));
+    model.setOption("fast_mode", true);
+    const form = { provider: "claude", cwd: "/repo" };
+    expect(draftControlsRequest(model.getState(), form)).toMatchObject({
+      provider: "claude",
+      providerOptions: { fast_mode: true },
+    });
+
+    // The form shows OpenCode on its next render; the model has not observed it yet.
+    expect(draftControlsRequest(model.getState(), { ...form, provider: "opencode" })).toBeNull();
+
+    model.observeProvider("opencode");
+    const request = draftControlsRequest(model.getState(), { ...form, provider: "opencode" });
+    expect(request).toEqual({ provider: "opencode", cwd: "/repo" });
+  });
+
+  it("keeps a draft's seed when the first provider is chosen", () => {
+    const model = openDraftOptions({ provider: null, seed: { web_search: true } });
+
+    model.observeProvider("claude");
+
+    expect(ownDraftOptions(model.getState())).toEqual({ web_search: true });
+  });
+
+  it("sends a remembered value to the daemon, and draws only what comes back", () => {
+    const model = openDraftOptions({ provider: "codex" });
+    model.setRemembered({ service_tier: "fast", retired: true });
+    // Nothing is known about the provider's controls yet.
+    expect(ownDraftOptions(model.getState())).toBeUndefined();
+
+    model.applyResolved(answer("codex", "k1", { service_tier: "default" }));
+    expect(ownDraftOptions(model.getState())).toEqual({ service_tier: "fast" });
+    // The answer to the first request does not show the remembered value as if it applied.
+    expect(
+      viewDraftOptions(model.getState(), { provider: "codex", requestKey: "k2" })?.options,
+    ).toEqual({ service_tier: "default" });
+
+    model.applyResolved(answer("codex", "k2", { service_tier: "priority" }));
+    expect(
+      viewDraftOptions(model.getState(), { provider: "codex", requestKey: "k2" })?.options,
+    ).toEqual({ service_tier: "priority" });
+  });
+
+  it("does not let a remembered value override the seed", () => {
+    const model = openDraftOptions({ provider: "codex", seed: { service_tier: "default" } });
+    model.applyResolved(answer("codex", "k1", { service_tier: "default" }));
+    model.setRemembered({ service_tier: "fast" });
+
+    expect(ownDraftOptions(model.getState())).toEqual({ service_tier: "default" });
+  });
+
+  it("lays a toggle over the previous answer until the new one arrives", () => {
+    const model = openDraftOptions({ provider: "claude" });
+    model.applyResolved(answer("claude", "k1", { web_search: false }));
+
+    model.setOption("web_search", true);
+
+    expect(
+      viewDraftOptions(model.getState(), { provider: "claude", requestKey: "k2" })?.options,
+    ).toEqual({ web_search: true });
+    model.applyResolved(answer("claude", "k2", { web_search: true }));
+    expect(
+      viewDraftOptions(model.getState(), { provider: "claude", requestKey: "k2" })?.options,
+    ).toEqual({ web_search: true });
+  });
+
+  it("draws nothing for a provider the answer is not for", () => {
+    const model = openDraftOptions({ provider: "claude" });
+    model.applyResolved(answer("claude", "k1", {}));
+
+    expect(viewDraftOptions(model.getState(), { provider: "codex", requestKey: "k1" })).toBe(
+      undefined,
+    );
+  });
+});

packages/app/src/agent-controls/draft-options-model.ts

@@ -0,0 +1,199 @@
+import type {
+  AgentOptionControl,
+  AgentSessionConfig,
+  ProviderOptions,
+} from "@getpaseo/protocol/agent-types";
+
+/**
+ * The options of one draft agent, as a plain model (see docs/forms.md). It owns which layers
+ * make up the draft's options; the daemon owns what they mean. Every layer is sent to the daemon
+ * (`ownDraftOptions`) and the UI draws what comes back (`viewDraftOptions`), so no alias,
+ * default or legacy key is resolved here.
+ *
+ * - `seed`: options the draft started from (a profile, a forked agent).
+ * - `remembered`: the provider's last-used control values.
+ * - `edits`: toggles made in this draft.
+ *
+ * An edit of `null` removes the key from every layer, the way a patch does on a running agent, so
+ * the provider's default applies again.
+ *
+ * Choosing a provider by hand starts the options over; applying a profile replaces the provider
+ * and the options in one step, so the provider change that follows does not clear them.
+ */
+export interface ResolvedDraftOptions {
+  provider: string;
+  /** Names the request that produced this answer; see `viewDraftOptions`. */
+  requestKey: string;
+  controls: AgentOptionControl[];
+  options: ProviderOptions;
+}
+
+export interface DraftOptionsState {
+  provider: string | null;
+  seed: ProviderOptions;
+  remembered: ProviderOptions;
+  edits: ProviderOptions;
+  resolved: ResolvedDraftOptions | null;
+}
+
+export interface DraftOptionsModel {
+  getState: () => DraftOptionsState;
+  subscribe: (listener: () => void) => () => void;
+  /** The provider the draft's form now has. A different one than the model's is a manual choice. */
+  observeProvider: (provider: string | null) => void;
+  applyProfile: (profile: { provider: string; options: ProviderOptions }) => void;
+  setRemembered: (remembered: ProviderOptions) => void;
+  setOption: (key: string, value: unknown) => void;
+  applyResolved: (resolved: ResolvedDraftOptions) => void;
+}
+
+export function openDraftOptions(input: {
+  provider: string | null;
+  seed?: ProviderOptions;
+  /**
+   * The provider the draft's form has now. An edit belongs to it even before the screen has
+   * rendered the change, so `setOption` observes it first.
+   */
+  currentProvider?: () => string | null;
+}): DraftOptionsModel {
+  let state: DraftOptionsState = {
+    provider: input.provider,
+    seed: input.seed ?? {},
+    remembered: {},
+    edits: {},
+    resolved: null,
+  };
+  const listeners = new Set<() => void>();
+
+  function publish(update: (current: DraftOptionsState) => DraftOptionsState): void {
+    const next = update(state);
+    if (next === state) return;
+    state = next;
+    for (const listener of listeners) listener();
+  }
+
+  function observeProvider(provider: string | null): void {
+    publish((current) => {
+      if (provider === current.provider) return current;
+      // The first provider a draft picks does not discard what it was opened with.
+      if (current.provider === null) return { ...current, provider };
+      return { ...current, provider, seed: {}, edits: {}, resolved: null };
+    });
+  }
+
+  return {
+    getState: () => state,
+    subscribe: (listener) => {
+      listeners.add(listener);
+      return () => {
+        listeners.delete(listener);
+      };
+    },
+    observeProvider,
+    applyProfile: (profile) =>
+      publish((current) => ({
+        ...current,
+        provider: profile.provider,
+        seed: profile.options,
+        edits: {},
+        resolved: current.provider === profile.provider ? current.resolved : null,
+      })),
+    setRemembered: (remembered) => publish((current) => ({ ...current, remembered })),
+    setOption: (key, value) => {
+      if (input.currentProvider) observeProvider(input.currentProvider());
+      publish((current) =>
+        Object.is(current.edits[key], value)
+          ? current
+          : { ...current, edits: { ...current.edits, [key]: value } },
+      );
+    },
+    applyResolved: (resolved) => publish((current) => ({ ...current, resolved })),
+  };
+}
+
+/**
+ * Everything the draft would create with, for the daemon to resolve. A last-used value applies
+ * once the provider has told us it still draws a control for that key, and never over the seed.
+ */
+export function ownDraftOptions(state: DraftOptionsState): ProviderOptions | undefined {
+  const controlKeys = new Set((state.resolved?.controls ?? []).map((control) => control.key));
+  const remembered = Object.fromEntries(
+    Object.entries(state.remembered).filter(
+      ([key]) => controlKeys.has(key) && !(key in state.seed),
+    ),
+  );
+  const own = withoutRemovals({ ...state.seed, ...remembered, ...state.edits });
+  return Object.keys(own).length > 0 ? own : undefined;
+}
+
+function withoutRemovals(options: ProviderOptions): ProviderOptions {
+  return Object.fromEntries(Object.entries(options).filter(([, value]) => value !== null));
+}
+
+export type DraftControlsRequest = Pick<
+  AgentSessionConfig,
+  "provider" | "cwd" | "modeId" | "model" | "thinkingOptionId" | "providerOptions"
+>;
+
+/**
+ * The listing request for the draft's form, built from one snapshot of the model. The form
+ * reaches a new provider before the model has observed it, and the model still holds the
+ * previous provider's options until it does; that render has no request, so a request never
+ * pairs one provider with another's options.
+ */
+export function draftControlsRequest(
+  state: DraftOptionsState,
+  form: {
+    provider: string | null;
+    cwd: string;
+    modeId?: string | null;
+    modelId?: string | null;
+    thinkingOptionId?: string | null;
+  },
+): DraftControlsRequest | null {
+  if (!form.provider || !form.cwd || form.provider !== state.provider) return null;
+  const providerOptions = ownDraftOptions(state);
+  return {
+    provider: form.provider,
+    cwd: form.cwd,
+    ...(form.modeId ? { modeId: form.modeId } : {}),
+    ...(form.modelId ? { model: form.modelId } : {}),
+    ...(form.thinkingOptionId ? { thinkingOptionId: form.thinkingOptionId } : {}),
+    ...(providerOptions ? { providerOptions } : {}),
+  };
+}
+
+/**
+ * What the controls draw: the daemon's answer for this provider. The last answer stays up while
+ * a newer request is in flight, with the toggles made since laid over it, so a switch does not
+ * wait for the round trip. It never carries a seed or remembered value the daemon has not
+ * resolved.
+ */
+export function viewDraftOptions(
+  state: DraftOptionsState,
+  current: { provider: string | null; requestKey: string },
+): { controls: AgentOptionControl[]; options: ProviderOptions } | undefined {
+  const { resolved } = state;
+  if (!resolved || resolved.provider !== current.provider) return undefined;
+  return {
+    controls: resolved.controls,
+    options:
+      resolved.requestKey === current.requestKey
+        ? resolved.options
+        : withoutRemovals({ ...resolved.options, ...state.edits }),
+  };
+}
+
+const NO_OPTIONS: ProviderOptions = {};
+
+/**
+ * The options the draft will create with, for a plugin or a control to read: the daemon's answer
+ * for this provider when there is one, otherwise the draft's own layers, so an edit shows before
+ * the daemon has answered.
+ */
+export function shownDraftOptions(
+  state: DraftOptionsState,
+  current: { provider: string | null; requestKey: string },
+): ProviderOptions {
+  return viewDraftOptions(state, current)?.options ?? ownDraftOptions(state) ?? NO_OPTIONS;
+}

packages/app/src/agent-controls/icons.test.ts

@@ -0,0 +1,16 @@
+import { Settings2 } from "lucide-react-native";
+import { describe, expect, it } from "vitest";
+import { getAgentFeatureIcon } from "./icons";
+
+describe("getAgentFeatureIcon", () => {
+  it("draws the Lucide icon a plugin provider names", () => {
+    const icon = getAgentFeatureIcon("Mic");
+    expect(icon).not.toBe(Settings2);
+    expect(getAgentFeatureIcon("Mic")).toBe(icon);
+  });
+
+  it("falls back to the generic icon for a missing or unknown name", () => {
+    expect(getAgentFeatureIcon()).toBe(Settings2);
+    expect(getAgentFeatureIcon("not-an-icon")).toBe(Settings2);
+  });
+});

packages/app/src/agent-controls/icons.ts

@@ -13,6 +13,7 @@ import {
   ShieldQuestionMark,
   Zap,
 } from "lucide-react-native";
+import { isLucideIconName, pluginIconComponent } from "@/plugins/icons";
 import { getModeVisuals, type AgentProviderDefinition } from "@getpaseo/protocol/provider-manifest";
 
 export interface AgentControlIconProps {
@@ -60,6 +61,9 @@ export function getAgentModeOptionIcon(
   return icon ? MODE_ICONS[icon] : undefined;
 }
 
+/** A built-in control names its icon in kebab case; a plugin provider names a Lucide icon. */
 export function getAgentFeatureIcon(icon?: string): AgentControlIcon {
-  return (icon ? FEATURE_ICONS[icon] : undefined) ?? Settings2;
+  if (!icon) return Settings2;
+  if (FEATURE_ICONS[icon]) return FEATURE_ICONS[icon];
+  return isLucideIconName(icon) ? pluginIconComponent(icon) : Settings2;
 }

packages/app/src/agent-controls/option-controls.test.ts

@@ -0,0 +1,50 @@
+import { describe, expect, it } from "vitest";
+import type { AgentOptionControl } from "@getpaseo/protocol/agent-types";
+import {
+  getControlTooltip,
+  isControlActive,
+  readSelectOption,
+  readToggleOption,
+} from "./option-controls";
+
+const speed: AgentOptionControl = {
+  type: "select",
+  key: "service_tier",
+  label: "Speed",
+  defaultValue: "default",
+  choices: [
+    { value: "default", label: "Normal" },
+    { value: "priority", label: "Fast" },
+  ],
+};
+const fast: AgentOptionControl = { type: "toggle", key: "fast_mode", label: "Fast" };
+
+describe("option controls", () => {
+  it("reads a select from options and falls back to the control's default", () => {
+    if (speed.type !== "select") throw new Error("select expected");
+    expect(readSelectOption(speed, { service_tier: "priority" })).toBe("priority");
+    expect(readSelectOption(speed, {})).toBe("default");
+    expect(readSelectOption(speed, { service_tier: "unknown-tier" })).toBe("default");
+  });
+
+  it("reads a toggle from options and is off when unset", () => {
+    if (fast.type !== "toggle") throw new Error("toggle expected");
+    expect(readToggleOption(fast, { fast_mode: true })).toBe(true);
+    expect(readToggleOption(fast, {})).toBe(false);
+  });
+
+  it("is active when the option differs from the control's default", () => {
+    expect(isControlActive(speed, { service_tier: "priority" })).toBe(true);
+    expect(isControlActive(speed, { service_tier: "default" })).toBe(false);
+    expect(isControlActive(speed, {})).toBe(false);
+    expect(isControlActive(fast, { fast_mode: true })).toBe(true);
+    expect(isControlActive(fast, {})).toBe(false);
+  });
+
+  it("prefers a control's tooltip over its label", () => {
+    expect(getControlTooltip({ label: "Plan", tooltip: "Toggle plan mode" })).toBe(
+      "Toggle plan mode",
+    );
+    expect(getControlTooltip({ label: "Custom" })).toBe("Custom");
+  });
+});

packages/app/src/agent-controls/option-controls.ts

@@ -0,0 +1,47 @@
+import type {
+  AgentOptionControl,
+  AgentOptionSelectControl,
+  AgentOptionToggleControl,
+  ProviderOptions,
+} from "@getpaseo/protocol/agent-types";
+
+/**
+ * The composer's option controls. A control only describes how to draw one option key; the
+ * value is read from `options`, which the daemon resolved (defaults, aliases, what runs).
+ */
+export interface ComposerOptionControls {
+  controls: AgentOptionControl[];
+  options: ProviderOptions;
+  onSetOption: (key: string, value: unknown) => void;
+}
+
+export function readToggleOption(
+  control: AgentOptionToggleControl,
+  options: ProviderOptions,
+): boolean {
+  const value = options[control.key];
+  return typeof value === "boolean" ? value : (control.defaultValue ?? false);
+}
+
+/** The selected choice's value, or the control's default when the option names no choice. */
+export function readSelectOption(
+  control: AgentOptionSelectControl,
+  options: ProviderOptions,
+): string | null {
+  const value = options[control.key];
+  if (typeof value === "string" && control.choices.some((choice) => choice.value === value)) {
+    return value;
+  }
+  return control.defaultValue ?? null;
+}
+
+/** Whether the option is set to something other than the control's default. */
+export function isControlActive(control: AgentOptionControl, options: ProviderOptions): boolean {
+  if (control.type === "toggle") return readToggleOption(control, options);
+  const value = readSelectOption(control, options);
+  return value !== null && value !== control.defaultValue;
+}
+
+export function getControlTooltip(control: Pick<AgentOptionControl, "label" | "tooltip">): string {
+  return control.tooltip ?? control.label;
+}

packages/app/src/agent-profiles/internal/materialize-profile.test.ts

@@ -23,7 +23,7 @@ describe("materializeAgentProfile", () => {
           model: "claude-opus-5",
           modeId: "plan",
           thinkingOptionId: "think-hard",
-          featureValues: { web_search: true },
+          options: { web_search: true },
         }),
       ),
     ).toEqual({
@@ -31,7 +31,7 @@ describe("materializeAgentProfile", () => {
       modelId: "claude-opus-5",
       modeId: "plan",
       thinkingOptionId: "think-hard",
-      featureValues: { web_search: true },
+      options: { web_search: true },
     });
   });
 
@@ -41,7 +41,7 @@ describe("materializeAgentProfile", () => {
       modelId: "",
       modeId: "",
       thinkingOptionId: "",
-      featureValues: {},
+      options: {},
     });
   });
 
@@ -61,7 +61,7 @@ describe("toAgentConfigApply", () => {
             model: "claude-opus-5",
             modeId: "plan",
             thinkingOptionId: "think-hard",
-            featureValues: { web_search: true },
+            options: { web_search: true },
           }),
         ),
       ),
@@ -69,7 +69,7 @@ describe("toAgentConfigApply", () => {
       modelId: "claude-opus-5",
       modeId: "plan",
       thinkingOptionId: "think-hard",
-      featureValues: { web_search: true },
+      options: { web_search: true },
     });
   });
 
@@ -81,8 +81,8 @@ describe("toAgentConfigApply", () => {
 
   it("omits an empty feature map so the agent keeps its own feature values", () => {
     expect(
-      toAgentConfigApply(materializeAgentProfile(profile({ featureValues: {} }))),
-    ).not.toHaveProperty("featureValues");
+      toAgentConfigApply(materializeAgentProfile(profile({ options: {} }))),
+    ).not.toHaveProperty("options");
   });
 
   it("never carries a provider, which a running agent cannot change", () => {

packages/app/src/agent-profiles/internal/materialize-profile.ts

@@ -12,7 +12,7 @@ export interface MaterializedAgentProfile {
   modelId: string;
   modeId: string;
   thinkingOptionId: string;
-  featureValues: Record<string, unknown>;
+  options: Record<string, unknown>;
 }
 
 function trimmed(value: string | undefined): string {
@@ -25,7 +25,7 @@ export function materializeAgentProfile(profile: AgentProfile): MaterializedAgen
     modelId: trimmed(profile.model),
     modeId: trimmed(profile.modeId),
     thinkingOptionId: trimmed(profile.thinkingOptionId),
-    featureValues: profile.featureValues ?? {},
+    options: profile.options ?? {},
   };
 }
 
@@ -52,8 +52,6 @@ export function toAgentConfigApply(profile: MaterializedAgentProfile): AgentConf
     ...(profile.modelId ? { modelId: profile.modelId } : {}),
     ...(profile.modeId ? { modeId: profile.modeId } : {}),
     ...(profile.thinkingOptionId ? { thinkingOptionId: profile.thinkingOptionId } : {}),
-    ...(Object.keys(profile.featureValues).length > 0
-      ? { featureValues: profile.featureValues }
-      : {}),
+    ...(Object.keys(profile.options).length > 0 ? { options: profile.options } : {}),
   };
 }

packages/app/src/agent-profiles/internal/profile-form-model.test.ts

@@ -1,7 +1,7 @@
 import type { ProviderSnapshotEntry } from "@getpaseo/protocol/agent-types";
 import { describe, expect, it } from "vitest";
 import {
-  buildFeatureRequestKey,
+  buildControlsRequestKey,
   openAgentProfileForm,
   type AgentProfileFormModel,
 } from "./profile-form-model";
@@ -173,7 +173,7 @@ describe("openAgentProfileForm", () => {
         model: "claude-opus-5",
         modeId: "plan",
         thinkingOptionId: "think-hard",
-        featureValues: { webSearch: true },
+        options: { webSearch: true },
         notes: "Visual work only.",
       },
     });
@@ -229,10 +229,11 @@ describe("openAgentProfileForm", () => {
       selectClaude(model);
       model.setModel("claude-opus-5", { label: "Opus 5" });
       model.setThinking("think-hard", { label: "Think hard" });
-      model.applyFeatures(model.getState().featureRequestKey ?? "", [
-        { type: "toggle", id: "webSearch", label: "Web search", value: false },
-      ]);
-      model.setFeatureValue("webSearch", true);
+      model.applyControls(model.getState().controlsRequestKey ?? "", {
+        controls: [{ type: "toggle", key: "webSearch", label: "Web search" }],
+        options: { webSearch: false },
+      });
+      model.setOption("webSearch", true);
 
       model.setProvider("codex", { label: "Codex" });
       const state = model.getState();
@@ -242,8 +243,9 @@ describe("openAgentProfileForm", () => {
       expect(state.modelDisplay).toEqual({ label: "GPT-5.2 Codex" });
       expect(state.thinkingOptionId).toBe("");
       expect(state.thinkingDisplay).toBeNull();
-      expect(state.featureValues).toEqual({});
-      expect(state.features).toEqual([]);
+      expect(state.options).toEqual({});
+      expect(state.optionEdits).toEqual({});
+      expect(state.controls).toEqual([]);
       expect(state.name).toBe("Test writer");
     });
 
@@ -334,23 +336,28 @@ describe("openAgentProfileForm", () => {
     });
   });
 
-  describe("features", () => {
-    it("asks for features per provider/model/mode/thinking combination", () => {
+  const WEB_SEARCH_CONTROLS = {
+    controls: [{ type: "toggle" as const, key: "webSearch", label: "Web search" }],
+    options: { webSearch: false },
+  };
+
+  describe("controls", () => {
+    it("asks for controls per provider/model/mode/thinking combination", () => {
       const model = openWithCatalog({ mode: "create" });
       selectClaude(model);
 
-      expect(model.getState().featureRequest).toEqual({
+      expect(model.getState().controlsRequest).toEqual({
         provider: "claude",
         model: "claude-opus-5",
         modeId: "plan",
         thinkingOptionId: "think",
       });
-      const firstKey = model.getState().featureRequestKey;
+      const firstKey = model.getState().controlsRequestKey;
 
       model.setModel("claude-haiku-4-5", { label: "Haiku 4.5" });
 
-      expect(model.getState().featureRequestKey).not.toBe(firstKey);
-      expect(model.getState().featureRequest).toEqual({
+      expect(model.getState().controlsRequestKey).not.toBe(firstKey);
+      expect(model.getState().controlsRequest).toEqual({
         provider: "claude",
         model: "claude-haiku-4-5",
         modeId: "plan",
@@ -361,77 +368,168 @@ describe("openAgentProfileForm", () => {
     it("moves from pending to complete only for the current request", () => {
       const model = openWithCatalog({ mode: "create" });
       selectClaude(model);
-      const key = model.getState().featureRequestKey ?? "";
-      expect(model.getState().featureResolution).toBe("pending");
+      const key = model.getState().controlsRequestKey ?? "";
+      expect(model.getState().controlsResolution).toBe("pending");
 
-      model.applyFeatures("stale-key", [
-        { type: "toggle", id: "webSearch", label: "Web search", value: false },
-      ]);
-      expect(model.getState().featureResolution).toBe("pending");
-      expect(model.getState().features).toEqual([]);
+      model.applyControls("stale-key", {
+        controls: [{ type: "toggle", key: "webSearch", label: "Web search" }],
+        options: { webSearch: false },
+      });
+      expect(model.getState().controlsResolution).toBe("pending");
+      expect(model.getState().controls).toEqual([]);
 
-      model.applyFeatures(key, [
-        { type: "toggle", id: "webSearch", label: "Web search", value: false },
-      ]);
-      expect(model.getState().featureResolution).toBe("complete");
-      expect(model.getState().disclosure.showFeaturesField).toBe(true);
+      model.applyControls(key, {
+        controls: [{ type: "toggle", key: "webSearch", label: "Web search" }],
+        options: { webSearch: false },
+      });
+      expect(model.getState().controlsResolution).toBe("complete");
+      expect(model.getState().disclosure.showControlsField).toBe(true);
     });
 
-    it("reflects a set feature value back into the rendered feature", () => {
+    it("reflects a set option back into the rendered controls", () => {
+      const model = openWithCatalog({ mode: "create" });
+      model.setName("Searcher");
+      selectClaude(model);
+      model.applyControls(model.getState().controlsRequestKey ?? "", WEB_SEARCH_CONTROLS);
+
+      model.setOption("webSearch", true);
+
+      expect(model.getState().controls[0]).toMatchObject({ key: "webSearch" });
+      expect(model.getState().controlOptions).toEqual({ webSearch: true });
+      expect(model.getState().submitValue?.options).toEqual({ webSearch: true });
+    });
+
+    it("keeps stored options while the controls are still pending", () => {
+      const model = openAgentProfileForm({
+        mode: "edit",
+        profile: { id: "p1", name: "UI work", provider: "claude", options: { webSearch: true } },
+      });
+      model.applyProviderCatalog(ENTRIES);
+
+      expect(model.getState().controlsResolution).toBe("pending");
+      expect(model.getState().submitValue?.options).toEqual({ webSearch: true });
+    });
+
+    it("keeps options no control draws, so editing a profile does not drop them", () => {
+      const model = openAgentProfileForm({
+        mode: "edit",
+        profile: {
+          id: "p1",
+          name: "UI work",
+          provider: "claude",
+          options: { webSearch: true, sandbox_mode: "read-only" },
+        },
+      });
+      model.applyProviderCatalog(ENTRIES);
+      model.applyControls(model.getState().controlsRequestKey ?? "", WEB_SEARCH_CONTROLS);
+      model.setOption("webSearch", false);
+
+      expect(model.getState().submitValue?.options).toEqual({
+        webSearch: false,
+        sandbox_mode: "read-only",
+      });
+    });
+
+    it("draws the options the daemon resolved from the stored ones, then the edits", () => {
+      const model = openAgentProfileForm({
+        mode: "edit",
+        profile: { id: "p1", name: "Fast", provider: "codex", options: { service_tier: "fast" } },
+      });
+      model.applyProviderCatalog(ENTRIES);
+
+      // The request carries the stored options so the daemon can resolve the legacy tier.
+      expect(model.getState().controlsRequest?.providerOptions).toEqual({ service_tier: "fast" });
+
+      model.applyControls(model.getState().controlsRequestKey ?? "", {
+        controls: [
+          {
+            type: "select",
+            key: "service_tier",
+            label: "Speed",
+            defaultValue: "default",
+            choices: [
+              { value: "default", label: "Standard" },
+              { value: "priority", label: "Fast" },
+            ],
+          },
+        ],
+        options: { service_tier: "priority" },
+      });
+
+      expect(model.getState().controlOptions).toEqual({ service_tier: "priority" });
+      // Nothing was edited, so the stored value is saved as it was.
+      expect(model.getState().submitValue?.options).toEqual({ service_tier: "fast" });
+    });
+
+    it("sends an edit to the daemon with the stored options, and draws the answer", () => {
+      const model = openAgentProfileForm({
+        mode: "edit",
+        profile: {
+          id: "p1",
+          name: "Fast",
+          provider: "codex",
+          options: { service_tier: "fast", sandbox_mode: "read-only" },
+        },
+      });
+      model.applyProviderCatalog(ENTRIES);
+      const speed = {
+        controls: [
+          {
+            type: "select" as const,
+            key: "service_tier",
+            label: "Speed",
+            defaultValue: "default",
+            choices: [
+              { value: "default", label: "Standard" },
+              { value: "priority", label: "Fast" },
+            ],
+          },
+        ],
+        options: { service_tier: "priority", sandbox_mode: "read-only" },
+      };
+      model.applyControls(model.getState().controlsRequestKey ?? "", speed);
+
+      model.setOption("service_tier", "default");
+
+      // The controls stay up while the daemon answers, with the toggle laid over the last answer.
+      expect(model.getState().controls).toHaveLength(1);
+      expect(model.getState().controlOptions).toMatchObject({ service_tier: "default" });
+      // The request carries everything the profile would save, so the daemon resolves it.
+      expect(model.getState().controlsRequest?.providerOptions).toEqual({
+        service_tier: "default",
+        sandbox_mode: "read-only",
+      });
+      expect(model.getState().controlsResolution).toBe("pending");
+
+      model.applyControls(model.getState().controlsRequestKey ?? "", {
+        ...speed,
+        options: { service_tier: "default", sandbox_mode: "read-only" },
+      });
+      expect(model.getState().controlsResolution).toBe("complete");
+      expect(model.getState().controlOptions).toEqual({
+        service_tier: "default",
+        sandbox_mode: "read-only",
+      });
+    });
+
+    it("draws no controls for the previous model while another model's answer is pending", () => {
       const model = openWithCatalog({ mode: "create" });
       selectClaude(model);
-      model.applyFeatures(model.getState().featureRequestKey ?? "", [
-        { type: "toggle", id: "webSearch", label: "Web search", value: false },
-      ]);
+      model.applyControls(model.getState().controlsRequestKey ?? "", WEB_SEARCH_CONTROLS);
 
-      model.setFeatureValue("webSearch", true);
+      model.setModel("claude-haiku-4-5", { label: "Haiku 4.5" });
 
-      expect(model.getState().features[0]).toMatchObject({ id: "webSearch", value: true });
-      expect(model.getState().featureValues).toEqual({ webSearch: true });
-    });
-
-    it("keeps stored feature values while the feature list is still pending", () => {
-      const model = openAgentProfileForm({
-        mode: "edit",
-        profile: {
-          id: "p1",
-          name: "UI work",
-          provider: "claude",
-          featureValues: { webSearch: true },
-        },
-      });
-      model.applyProviderCatalog(ENTRIES);
-
-      expect(model.getState().featureResolution).toBe("pending");
-      expect(model.getState().submitValue?.featureValues).toEqual({ webSearch: true });
-    });
-
-    it("prunes stored values the provider no longer reports", () => {
-      const model = openAgentProfileForm({
-        mode: "edit",
-        profile: {
-          id: "p1",
-          name: "UI work",
-          provider: "claude",
-          featureValues: { webSearch: true, retiredFlag: true },
-        },
-      });
-      model.applyProviderCatalog(ENTRIES);
-      model.applyFeatures(model.getState().featureRequestKey ?? "", [
-        { type: "toggle", id: "webSearch", label: "Web search", value: false },
-      ]);
-
-      expect(model.getState().featureValues).toEqual({ webSearch: true });
+      expect(model.getState().controls).toEqual([]);
     });
 
     it("resolves an unavailable feature listing without showing the field", () => {
       const model = openWithCatalog({ mode: "create" });
       selectClaude(model);
 
-      model.applyFeaturesUnavailable(model.getState().featureRequestKey ?? "");
+      model.applyControlsUnavailable(model.getState().controlsRequestKey ?? "");
 
-      expect(model.getState().featureResolution).toBe("complete");
-      expect(model.getState().disclosure.showFeaturesField).toBe(false);
+      expect(model.getState().controlsResolution).toBe("complete");
+      expect(model.getState().disclosure.showControlsField).toBe(false);
     });
   });
 
@@ -464,15 +562,15 @@ describe("openAgentProfileForm", () => {
   });
 });
 
-describe("buildFeatureRequestKey", () => {
+describe("buildControlsRequestKey", () => {
   it("is null without a provider", () => {
-    expect(buildFeatureRequestKey(null)).toBeNull();
+    expect(buildControlsRequestKey(null)).toBeNull();
   });
 
   it("separates the fields so a value cannot bleed across positions", () => {
-    expect(buildFeatureRequestKey({ provider: "claude", model: "a|b" })).toBe("claude|a|b||");
-    expect(buildFeatureRequestKey({ provider: "claude", modeId: "a" })).not.toBe(
-      buildFeatureRequestKey({ provider: "claude", model: "a" }),
+    expect(buildControlsRequestKey({ provider: "claude", model: "a|b" })).toBe("claude|a|b||");
+    expect(buildControlsRequestKey({ provider: "claude", modeId: "a" })).not.toBe(
+      buildControlsRequestKey({ provider: "claude", model: "a" }),
     );
   });
 });

packages/app/src/agent-profiles/internal/profile-form-model.ts

@@ -1,5 +1,6 @@
 import type {
-  AgentFeature,
+  AgentOptionControl,
+  ProviderOptions,
   AgentMode,
   AgentModelDefinition,
   AgentSelectOption,
@@ -7,7 +8,6 @@ import type {
 } from "@getpaseo/protocol/agent-types";
 import type { AgentProfile } from "@getpaseo/protocol/messages";
 import { formatAgentModeLabel, formatThinkingOptionLabel } from "@/agent-controls/labels";
-import { applyFeatureValues, pruneFeatureValues } from "@/hooks/feature-preferences";
 import { filterSelectableModels } from "@/provider-selection/model-catalog";
 
 /**
@@ -57,11 +57,15 @@ export interface AgentProfileFormSnapshot {
 }
 
 /**
- * The inputs a feature listing needs. Features are provider-scoped and change
- * with model/mode/thinking, so every one of those is part of the request.
+ * The inputs a controls listing needs. Controls are provider-scoped and change
+ * with model/mode/thinking, so every one of those is part of the request. The
+ * profile's own options ride along so the daemon can resolve them (a legacy
+ * `service_tier: "fast"` is drawn as the model's Fast tier); they are the same
+ * for the life of one provider, so they are not part of the key.
  */
-export interface AgentProfileFeatureRequest {
+export interface AgentProfileControlsRequest {
   provider: string;
+  providerOptions?: ProviderOptions;
   model?: string;
   modeId?: string;
   thinkingOptionId?: string;
@@ -73,7 +77,7 @@ export interface AgentProfileFormDisclosure {
   showModelField: boolean;
   showModeField: boolean;
   showThinkingField: boolean;
-  showFeaturesField: boolean;
+  showControlsField: boolean;
 }
 
 export interface AgentProfileFormState {
@@ -86,13 +90,18 @@ export interface AgentProfileFormState {
   modelId: string;
   modeId: string;
   thinkingOptionId: string;
-  featureValues: Record<string, unknown>;
+  /** The options the profile was opened with, including ones no control draws. */
+  options: ProviderOptions;
+  /** Changes made in this form, over `options`. */
+  optionEdits: ProviderOptions;
 
   providerOptions: AgentProfileFormOption[];
   modelOptions: AgentProfileFormOption[];
   modeOptions: AgentProfileFormOption[];
   thinkingOptions: AgentProfileFormOption[];
-  features: AgentFeature[];
+  controls: AgentOptionControl[];
+  /** What the controls show: the options the daemon resolved from `options`, then the edits. */
+  controlOptions: ProviderOptions;
 
   providerDisplay: AgentProfileFormDisplay | null;
   modelDisplay: AgentProfileFormDisplay | null;
@@ -100,9 +109,9 @@ export interface AgentProfileFormState {
   thinkingDisplay: AgentProfileFormDisplay | null;
 
   catalogResolution: AgentProfileResolutionStatus;
-  featureResolution: AgentProfileResolutionStatus;
-  featureRequest: AgentProfileFeatureRequest | null;
-  featureRequestKey: string | null;
+  controlsResolution: AgentProfileResolutionStatus;
+  controlsRequest: AgentProfileControlsRequest | null;
+  controlsRequestKey: string | null;
 
   disclosure: AgentProfileFormDisclosure;
   isSubmitting: boolean;
@@ -118,9 +127,12 @@ export interface AgentProfileFormModel {
   /** Late input: the host-scoped provider catalog. Never touches selections. */
   applyProviderCatalog: (entries: readonly ProviderSnapshotEntry[]) => void;
   /** Late input: the feature list for one request. Stale keys are ignored. */
-  applyFeatures: (requestKey: string, features: readonly AgentFeature[]) => void;
+  applyControls: (
+    requestKey: string,
+    resolved: { controls: readonly AgentOptionControl[]; options: ProviderOptions },
+  ) => void;
   /** Resolve a request that produced no usable features (provider error). */
-  applyFeaturesUnavailable: (requestKey: string) => void;
+  applyControlsUnavailable: (requestKey: string) => void;
   setName: (value: string) => void;
   setAppearance: (value: { icon: string; color: string }) => void;
   setNotes: (value: string) => void;
@@ -128,7 +140,7 @@ export interface AgentProfileFormModel {
   setModel: (modelId: string, display: AgentProfileFormDisplay | null) => void;
   setMode: (modeId: string, display: AgentProfileFormDisplay | null) => void;
   setThinking: (thinkingOptionId: string, display: AgentProfileFormDisplay | null) => void;
-  setFeatureValue: (featureId: string, value: unknown) => void;
+  setOption: (key: string, value: unknown) => void;
   setSubmitting: (value: boolean) => void;
   setSubmitError: (value: string | null) => void;
 }
@@ -312,19 +324,29 @@ function refineDisplay(
   return current ?? { label: selectedId };
 }
 
-function buildFeatureRequest(state: AgentProfileFormState): AgentProfileFeatureRequest | null {
+function buildControlsRequest(state: AgentProfileFormState): AgentProfileControlsRequest | null {
   if (!state.provider) {
     return null;
   }
+  const ownOptions = ownOptionsOf(state);
   return {
     provider: state.provider,
     ...(state.modelId ? { model: state.modelId } : {}),
     ...(state.modeId ? { modeId: state.modeId } : {}),
     ...(state.thinkingOptionId ? { thinkingOptionId: state.thinkingOptionId } : {}),
+    ...(Object.keys(ownOptions).length > 0 ? { providerOptions: ownOptions } : {}),
   };
 }
 
-export function buildFeatureRequestKey(request: AgentProfileFeatureRequest | null): string | null {
+/** Everything the profile would save as its options; the daemon resolves them for the form. */
+function ownOptionsOf(
+  state: Pick<AgentProfileFormState, "options" | "optionEdits">,
+): ProviderOptions {
+  return { ...state.options, ...state.optionEdits };
+}
+
+/** The part of a request that decides which controls exist; options only change their values. */
+function buildControlsScopeKey(request: AgentProfileControlsRequest | null): string | null {
   if (!request) {
     return null;
   }
@@ -336,12 +358,25 @@ export function buildFeatureRequestKey(request: AgentProfileFeatureRequest | nul
   ].join("|");
 }
 
+export function buildControlsRequestKey(
+  request: AgentProfileControlsRequest | null,
+): string | null {
+  if (!request) {
+    return null;
+  }
+  const scope = buildControlsScopeKey(request);
+  return request.providerOptions
+    ? `${scope}|${JSON.stringify(Object.entries(request.providerOptions).sort(([a], [b]) => a.localeCompare(b)))}`
+    : scope;
+}
+
 function buildSubmitValue(state: AgentProfileFormState): AgentProfileValue | null {
   const name = state.name.trim();
   const notes = state.notes.trim();
   if (!name || !state.provider) {
     return null;
   }
+  const options = ownOptionsOf(state);
   return {
     name,
     ...(state.icon ? { icon: state.icon } : {}),
@@ -350,16 +385,16 @@ function buildSubmitValue(state: AgentProfileFormState): AgentProfileValue | nul
     ...(state.modelId ? { model: state.modelId } : {}),
     ...(state.modeId ? { modeId: state.modeId } : {}),
     ...(state.thinkingOptionId ? { thinkingOptionId: state.thinkingOptionId } : {}),
-    ...(Object.keys(state.featureValues).length > 0 ? { featureValues: state.featureValues } : {}),
+    ...(Object.keys(options).length > 0 ? { options } : {}),
     ...(notes ? { notes } : {}),
   };
 }
 
-function resolveFeatureStatus(
-  featureRequestKey: string | null,
+function resolveControlsStatus(
+  controlsRequestKey: string | null,
   featuresAreCurrent: boolean,
 ): AgentProfileResolutionStatus {
-  if (featureRequestKey === null) {
+  if (controlsRequestKey === null) {
     return "idle";
   }
   return featuresAreCurrent ? "complete" : "pending";
@@ -392,25 +427,27 @@ function buildInitialState(snapshot: AgentProfileFormSnapshot): AgentProfileForm
     modelId,
     modeId: profile.modeId ?? "",
     thinkingOptionId: profile.thinkingOptionId ?? "",
-    featureValues: { ...profile.featureValues },
+    options: { ...profile.options },
+    optionEdits: {},
     providerOptions: [],
     modelOptions: [],
     modeOptions: [],
     thinkingOptions: [],
-    features: [],
+    controls: [],
+    controlOptions: {},
     providerDisplay: seedDisplay(provider),
     modelDisplay: seedDisplay(modelId),
     modeDisplay: seedDisplay(profile.modeId),
     thinkingDisplay: seedDisplay(profile.thinkingOptionId),
     catalogResolution: "idle",
-    featureResolution: "idle",
-    featureRequest: null,
-    featureRequestKey: null,
+    controlsResolution: "idle",
+    controlsRequest: null,
+    controlsRequestKey: null,
     disclosure: {
       showModelField: false,
       showModeField: false,
       showThinkingField: false,
-      showFeaturesField: false,
+      showControlsField: false,
     },
     isSubmitting: false,
     submitError: null,
@@ -422,8 +459,10 @@ function buildInitialState(snapshot: AgentProfileFormSnapshot): AgentProfileForm
 export function openAgentProfileForm(snapshot: AgentProfileFormSnapshot): AgentProfileFormModel {
   let entries: readonly ProviderSnapshotEntry[] = [];
   let catalogResolution: AgentProfileResolutionStatus = "idle";
-  let resolvedFeatureKey: string | null = null;
-  let resolvedFeatures: AgentFeature[] = [];
+  let resolvedControlsKey: string | null = null;
+  let resolvedScopeKey: string | null = null;
+  let resolvedControls: AgentOptionControl[] = [];
+  let resolvedOptions: ProviderOptions = {};
   let listeners = new Set<() => void>();
   let closed = false;
 
@@ -436,14 +475,23 @@ export function openAgentProfileForm(snapshot: AgentProfileFormSnapshot): AgentP
       modes,
     });
     const thinking = resolveThinkingOptions(entries, next.provider, next.modelId);
-    const featureRequest = buildFeatureRequest(next);
-    const featureRequestKey = buildFeatureRequestKey(featureRequest);
+    const controlsRequest = buildControlsRequest(next);
+    const controlsRequestKey = buildControlsRequestKey(controlsRequest);
+    const controlsScopeKey = buildControlsScopeKey(controlsRequest);
     const featuresAreCurrent =
-      featureRequestKey !== null && featureRequestKey === resolvedFeatureKey;
-    const features = featuresAreCurrent
-      ? applyFeatureValues(resolvedFeatures, next.featureValues)
-      : [];
-    const featureResolution = resolveFeatureStatus(featureRequestKey, featuresAreCurrent);
+      controlsRequestKey !== null && controlsRequestKey === resolvedControlsKey;
+    // A toggle changes only the options, so the controls stay up while the daemon answers and the
+    // toggle shows over the last answer. A change of provider, model, mode or thinking draws none
+    // until its own answer arrives.
+    const controlsApply = controlsScopeKey !== null && controlsScopeKey === resolvedScopeKey;
+    const controls = controlsApply ? resolvedControls : [];
+    let controlOptions: ProviderOptions = next.options;
+    if (controlsApply) {
+      controlOptions = featuresAreCurrent
+        ? resolvedOptions
+        : { ...resolvedOptions, ...next.optionEdits };
+    }
+    const controlsResolution = resolveControlsStatus(controlsRequestKey, featuresAreCurrent);
 
     const withOptions: AgentProfileFormState = {
       ...next,
@@ -451,7 +499,8 @@ export function openAgentProfileForm(snapshot: AgentProfileFormSnapshot): AgentP
       modelOptions: buildModelOptions(models),
       modeOptions: buildModeOptions(modes),
       thinkingOptions: buildThinkingOptions(thinking),
-      features,
+      controls,
+      controlOptions,
       providerDisplay: refineDisplay(
         next.providerDisplay,
         next.provider,
@@ -479,9 +528,9 @@ export function openAgentProfileForm(snapshot: AgentProfileFormSnapshot): AgentP
         })(),
       ),
       catalogResolution,
-      featureResolution,
-      featureRequest,
-      featureRequestKey,
+      controlsResolution,
+      controlsRequest,
+      controlsRequestKey,
     };
 
     // A field appears once the catalog can populate it, and stays visible while
@@ -492,7 +541,7 @@ export function openAgentProfileForm(snapshot: AgentProfileFormSnapshot): AgentP
       showModeField: hasProvider && (modes.length > 0 || Boolean(withOptions.modeId)),
       showThinkingField:
         hasProvider && (thinking.length > 0 || Boolean(withOptions.thinkingOptionId)),
-      showFeaturesField: hasProvider && features.length > 0,
+      showControlsField: hasProvider && controls.length > 0,
     };
     const canSubmit =
       withOptions.name.trim().length > 0 &&
@@ -531,23 +580,24 @@ export function openAgentProfileForm(snapshot: AgentProfileFormSnapshot): AgentP
       catalogResolution = "complete";
       publish((current) => current);
     },
-    applyFeatures: (requestKey, features) => {
-      if (requestKey !== state.featureRequestKey) {
+    applyControls: (requestKey, resolved) => {
+      if (requestKey !== state.controlsRequestKey) {
         return;
       }
-      resolvedFeatureKey = requestKey;
-      resolvedFeatures = [...features];
-      publish((current) => ({
-        ...current,
-        featureValues: pruneFeatureValues(current.featureValues, resolvedFeatures),
-      }));
+      resolvedControlsKey = requestKey;
+      resolvedScopeKey = buildControlsScopeKey(state.controlsRequest);
+      resolvedControls = [...resolved.controls];
+      resolvedOptions = resolved.options;
+      publish((current) => current);
     },
-    applyFeaturesUnavailable: (requestKey) => {
-      if (requestKey !== state.featureRequestKey) {
+    applyControlsUnavailable: (requestKey) => {
+      if (requestKey !== state.controlsRequestKey) {
         return;
       }
-      resolvedFeatureKey = requestKey;
-      resolvedFeatures = [];
+      resolvedControlsKey = requestKey;
+      resolvedScopeKey = buildControlsScopeKey(state.controlsRequest);
+      resolvedControls = [];
+      resolvedOptions = {};
       publish((current) => current);
     },
     setName: (value) => publish((current) => ({ ...current, name: value })),
@@ -572,7 +622,8 @@ export function openAgentProfileForm(snapshot: AgentProfileFormSnapshot): AgentP
           modeDisplay: null,
           thinkingOptionId: "",
           thinkingDisplay: null,
-          featureValues: {},
+          options: {},
+          optionEdits: {},
         };
       }),
     setModel: (modelId, display) =>
@@ -598,10 +649,10 @@ export function openAgentProfileForm(snapshot: AgentProfileFormSnapshot): AgentP
       publish((current) => ({ ...current, modeId, modeDisplay: display })),
     setThinking: (thinkingOptionId, display) =>
       publish((current) => ({ ...current, thinkingOptionId, thinkingDisplay: display })),
-    setFeatureValue: (featureId, value) =>
+    setOption: (key, value) =>
       publish((current) => ({
         ...current,
-        featureValues: { ...current.featureValues, [featureId]: value },
+        optionEdits: { ...current.optionEdits, [key]: value },
       })),
     setSubmitting: (value) => publish((current) => ({ ...current, isSubmitting: value })),
     setSubmitError: (value) => publish((current) => ({ ...current, submitError: value })),

packages/app/src/agent-profiles/internal/profile-summary.ts

@@ -47,7 +47,7 @@ export function buildAgentProfileTags(input: {
     tags.push({ id: "thinking", label: formatThinkingOptionLabel({ id: thinkingOptionId }) });
   }
 
-  const featureCount = Object.keys(input.profile.featureValues ?? {}).length;
+  const featureCount = Object.keys(input.profile.options ?? {}).length;
   if (featureCount > 0) {
     tags.push({ id: "features", label: input.formatFeatureCount(featureCount) });
   }

packages/app/src/agent-profiles/internal/use-agent-profile-picker.ts

@@ -117,9 +117,7 @@ export function useAgentProfilePicker(
           modelId: resolved.modelId,
           modeId: resolved.modeId,
           thinkingOptionId: resolved.thinkingOptionId,
-          ...(Object.keys(resolved.featureValues).length > 0
-            ? { featureValues: resolved.featureValues }
-            : {}),
+          ...(Object.keys(resolved.options).length > 0 ? { options: resolved.options } : {}),
         }),
       ).catch((error) => {
         console.warn("[useAgentProfilePicker] persist profile selection failed", error);

packages/app/src/agent-profiles/internal/use-profile-form-inputs.ts

@@ -27,7 +27,7 @@ export function useAgentProfileFormCatalog(input: {
   }, [entries, input.model]);
 }
 
-export function useAgentProfileFormFeatures(input: {
+export function useAgentProfileFormControls(input: {
   serverId: string;
   model: AgentProfileFormModel;
   state: AgentProfileFormState;
@@ -35,14 +35,14 @@ export function useAgentProfileFormFeatures(input: {
   const { t } = useTranslation();
   const client = useHostRuntimeClient(input.serverId);
   const isConnected = useHostRuntimeIsConnected(input.serverId);
-  const request = input.state.featureRequest;
-  const requestKey = input.state.featureRequestKey;
+  const request = input.state.controlsRequest;
+  const requestKey = input.state.controlsRequestKey;
 
   // `dataShape: "value"` and not `"list"`: a list shape keeps the previous
   // page's data while the next request is in flight, which would hand the
   // features of one provider/model combination to the key of another.
-  const featuresQuery = useFetchQuery({
-    queryKey: ["agentProfileFeatures", input.serverId, requestKey],
+  const controlsQuery = useFetchQuery({
+    queryKey: ["agentProfileControls", input.serverId, requestKey],
     dataShape: "value",
     staleTimeMs: 5 * 60 * 1000,
     enabled: Boolean(client && isConnected && request),
@@ -51,28 +51,28 @@ export function useAgentProfileFormFeatures(input: {
       if (!client || !request) {
         throw new Error(t("workspace.terminal.hostDisconnected"));
       }
-      const payload = await client.listProviderFeatures({ ...request, cwd: HOME_SCOPE_CWD });
+      const payload = await client.listProviderControls({ ...request, cwd: HOME_SCOPE_CWD });
       if (payload.error) {
         throw new Error(payload.error);
       }
-      return payload.features ?? [];
+      return { controls: payload.controls ?? [], options: payload.options ?? {} };
     },
   });
 
-  const { data, isError } = featuresQuery;
+  const { data, isError } = controlsQuery;
   const { model } = input;
 
   useEffect(() => {
     if (!requestKey || !data) {
       return;
     }
-    model.applyFeatures(requestKey, data);
+    model.applyControls(requestKey, data);
   }, [data, model, requestKey]);
 
   useEffect(() => {
     if (!requestKey || !isError) {
       return;
     }
-    model.applyFeaturesUnavailable(requestKey);
+    model.applyControlsUnavailable(requestKey);
   }, [isError, model, requestKey]);
 }

packages/app/src/agent-profiles/settings/agent-profile-edit-modal.tsx

@@ -2,7 +2,8 @@ import { useCallback, useEffect, useMemo, useRef, useState, type ReactElement }
 import { Text, View } from "react-native";
 import { useTranslation } from "react-i18next";
 import { StyleSheet } from "react-native-unistyles";
-import type { AgentFeature } from "@getpaseo/protocol/agent-types";
+import type { AgentOptionControl, ProviderOptions } from "@getpaseo/protocol/agent-types";
+import { readSelectOption, readToggleOption } from "@/agent-controls/option-controls";
 import type { AgentProfile } from "@getpaseo/protocol/messages";
 import { AdaptiveModalSheet, type SheetHeader } from "@/components/adaptive-modal-sheet";
 import { Button } from "@/components/ui/button";
@@ -25,7 +26,7 @@ import type {
 } from "../internal/profile-form-model";
 import {
   useAgentProfileFormCatalog,
-  useAgentProfileFormFeatures,
+  useAgentProfileFormControls,
 } from "../internal/use-profile-form-inputs";
 import {
   useAgentProfileFormModel,
@@ -141,7 +142,7 @@ function OpenAgentProfileEditModal({
   const model = useAgentProfileFormModel(snapshot);
   const state = useAgentProfileFormState(model);
   useAgentProfileFormCatalog({ serverId, model });
-  useAgentProfileFormFeatures({ serverId, model, state });
+  useAgentProfileFormControls({ serverId, model, state });
 
   const sheetHeader = useMemo<SheetHeader>(
     () => ({
@@ -328,16 +329,17 @@ function OpenAgentProfileEditModal({
           />
         ) : null}
 
-        {state.disclosure.showFeaturesField ? (
+        {state.disclosure.showControlsField ? (
           <Field
             label={t("settings.host.agentProfiles.featuresLabel")}
             testID="agent-profile-features-field"
           >
             <View style={styles.featureCard} testID="agent-profile-features-card">
-              {state.features.map((feature, index) => (
-                <AgentProfileFeatureRow
-                  key={feature.id}
-                  feature={feature}
+              {state.controls.map((control, index) => (
+                <AgentProfileControlRow
+                  key={control.key}
+                  control={control}
+                  options={state.controlOptions}
                   isFirst={index === 0}
                   disabled={state.isSubmitting}
                   size={controlSize}
@@ -400,14 +402,16 @@ function OpenAgentProfileEditModal({
   );
 }
 
-function AgentProfileFeatureRow({
-  feature,
+function AgentProfileControlRow({
+  control,
+  options,
   isFirst,
   disabled,
   size,
   model,
 }: {
-  feature: AgentFeature;
+  control: AgentOptionControl;
+  options: ProviderOptions;
   isFirst: boolean;
   disabled: boolean;
   size: FieldControlSize;
@@ -418,74 +422,75 @@ function AgentProfileFeatureRow({
     [isFirst],
   );
   const handleToggle = useCallback(
-    (value: boolean) => model.setFeatureValue(feature.id, value),
-    [feature.id, model],
+    (value: boolean) => model.setOption(control.key, value),
+    [control.key, model],
   );
   const handleSelect = useCallback(
-    (value: string) => model.setFeatureValue(feature.id, value),
-    [feature.id, model],
+    (value: string) => model.setOption(control.key, value),
+    [control.key, model],
   );
   const selectOptions = useMemo<SelectFieldOption<string>[]>(
     () =>
-      feature.type === "select"
-        ? feature.options.map((option) => ({
-            id: option.id,
-            value: option.id,
-            label: option.label,
-            ...(option.description ? { description: option.description } : {}),
-            testID: `agent-profile-feature-option-${feature.id}-${option.id}`,
+      control.type === "select"
+        ? control.choices.map((choice) => ({
+            id: choice.value,
+            value: choice.value,
+            label: choice.label,
+            ...(choice.description ? { description: choice.description } : {}),
+            testID: `agent-profile-feature-option-${control.key}-${choice.value}`,
           }))
         : [],
-    [feature],
+    [control],
   );
+  const selectedValue = control.type === "select" ? readSelectOption(control, options) : null;
   const selectedDisplay = useMemo<SelectFieldDisplay | null>(() => {
-    if (feature.type !== "select" || !feature.value) {
+    if (control.type !== "select" || !selectedValue) {
       return null;
     }
-    const option = feature.options.find((candidate) => candidate.id === feature.value);
-    return { label: option?.label ?? feature.value };
-  }, [feature]);
+    const choice = control.choices.find((candidate) => candidate.value === selectedValue);
+    return { label: choice?.label ?? selectedValue };
+  }, [control, selectedValue]);
 
-  if (feature.type === "select") {
+  if (control.type === "select") {
     return (
-      <View style={rowStyle} testID={`agent-profile-feature-row-${feature.id}`}>
+      <View style={rowStyle} testID={`agent-profile-feature-row-${control.key}`}>
         <SelectField
-          label={feature.label}
-          value={feature.value}
+          label={control.label}
+          value={selectedValue}
           selectedDisplay={selectedDisplay}
           options={selectOptions}
           onChange={handleSelect}
-          placeholder={feature.label}
-          emptyText={feature.label}
+          placeholder={control.label}
+          emptyText={control.label}
           disabled={disabled}
-          {...(feature.description ? { hint: feature.description } : {})}
-          title={feature.label}
+          {...(control.description ? { hint: control.description } : {})}
+          title={control.label}
           size={size}
-          testID={`agent-profile-feature-field-${feature.id}`}
-          triggerTestID={`agent-profile-feature-trigger-${feature.id}`}
+          testID={`agent-profile-feature-field-${control.key}`}
+          triggerTestID={`agent-profile-feature-trigger-${control.key}`}
         />
       </View>
     );
   }
 
   return (
-    <View style={rowStyle} testID={`agent-profile-feature-row-${feature.id}`}>
+    <View style={rowStyle} testID={`agent-profile-feature-row-${control.key}`}>
       <View style={styles.featureMeta}>
         <Text style={styles.featureLabel} numberOfLines={1}>
-          {feature.label}
+          {control.label}
         </Text>
-        {feature.description ? (
+        {control.description ? (
           <Text style={styles.featureDescription} numberOfLines={2}>
-            {feature.description}
+            {control.description}
           </Text>
         ) : null}
       </View>
       <Switch
-        value={feature.value === true}
+        value={readToggleOption(control, options)}
         onValueChange={handleToggle}
         disabled={disabled}
-        accessibilityLabel={feature.label}
-        testID={`agent-profile-feature-switch-${feature.id}`}
+        accessibilityLabel={control.label}
+        testID={`agent-profile-feature-switch-${control.key}`}
       />
     </View>
   );

packages/app/src/agent-stream/view.tsx

@@ -1304,7 +1304,8 @@ function collectAgentSetupDiffs(left: AgentScreenAgent, right: AgentScreenAgent)
   if (left.runtimeInfo?.thinkingOptionId !== right.runtimeInfo?.thinkingOptionId) {
     reasons.push("agent.runtimeInfo.thinkingOptionId");
   }
-  if (left.features !== right.features) reasons.push("agent.features");
+  if (left.options !== right.options) reasons.push("agent.options");
+  if (left.controls !== right.controls) reasons.push("agent.controls");
   return reasons;
 }
 

packages/app/src/client-slash-commands/index.test.ts

@@ -40,16 +40,7 @@ function createAgent(overrides: Partial<Agent> = {}): Agent {
     cwd: "/repo",
     model: "agent-model",
     thinkingOptionId: "think-hard",
-    features: [
-      { type: "toggle", id: "web-search", label: "Web search", value: true },
-      {
-        type: "select",
-        id: "effort",
-        label: "Effort",
-        value: "high",
-        options: [{ id: "high", label: "High" }],
-      },
-    ],
+    options: { "web-search": true, effort: "high" },
     parentAgentId: null,
     labels: {},
     ...overrides,
@@ -114,7 +105,7 @@ describe("buildDraftAgentSetup", () => {
       modeId: "mode-current",
       model: "agent-model",
       thinkingOptionId: "think-hard",
-      featureValues: {
+      providerOptions: {
         "web-search": true,
         effort: "high",
       },

packages/app/src/client-slash-commands/index.ts

@@ -65,17 +65,12 @@ export function resolveClientSlashCommand(input: {
 }
 
 export function buildDraftAgentSetup(agent: Agent): WorkspaceDraftTabSetup {
-  const featureValues: Record<string, unknown> = {};
-  for (const feature of agent.features ?? []) {
-    featureValues[feature.id] = feature.value;
-  }
-
   return {
     provider: agent.provider,
     cwd: agent.cwd,
     modeId: agent.currentModeId ?? agent.runtimeInfo?.modeId ?? null,
     model: agent.model ?? agent.runtimeInfo?.model ?? null,
     thinkingOptionId: agent.thinkingOptionId ?? agent.runtimeInfo?.thinkingOptionId ?? null,
-    featureValues,
+    providerOptions: { ...agent.options },
   };
 }

packages/app/src/command-center/agent-control-contributions.test.ts

@@ -1,5 +1,9 @@
 import { describe, expect, it } from "vitest";
-import type { AgentFeature, AgentMode, AgentSelectOption } from "@getpaseo/protocol/agent-types";
+import type {
+  AgentMode,
+  AgentOptionControl,
+  AgentSelectOption,
+} from "@getpaseo/protocol/agent-types";
 import type { ProviderSelectorProvider } from "@/provider-selection/provider-selection";
 import type { CommandCenterContribution } from "./contributions";
 import {
@@ -31,7 +35,7 @@ const ICONS: AgentControlContributionSource["icons"] = {
   thinking: TestIcon,
   planMode: TestIcon,
   mode: () => TestIcon,
-  feature: () => TestIcon,
+  control: () => TestIcon,
 };
 
 function provider(input: {
@@ -65,8 +69,8 @@ function provider(input: {
   };
 }
 
-function toggleFeature(id: string, value = false, icon?: string): AgentFeature {
-  return { type: "toggle", id, label: id, value, icon };
+function toggleControl(key: string, icon?: string): AgentOptionControl {
+  return { type: "toggle", key, label: key, icon };
 }
 
 function makeSource(
@@ -75,7 +79,7 @@ function makeSource(
     models?: Partial<AgentControlContributionSource["models"]>;
     thinking?: Partial<AgentControlContributionSource["thinking"]>;
     modes?: Partial<NonNullable<AgentControlContributionSource["modes"]>>;
-    features?: Partial<AgentControlContributionSource["features"]>;
+    optionControls?: Partial<AgentControlContributionSource["optionControls"]>;
   } = {},
 ): AgentControlContributionSource {
   return {
@@ -104,10 +108,11 @@ function makeSource(
       select: () => undefined,
       ...overrides.modes,
     },
-    features: {
-      list: [],
-      set: () => undefined,
-      ...overrides.features,
+    optionControls: {
+      controls: [],
+      options: {},
+      onSetOption: () => undefined,
+      ...overrides.optionControls,
     },
   };
 }
@@ -133,7 +138,7 @@ describe("Command Center agent-control contributions", () => {
     const contributions = buildAgentControlContributions({
       ...makeSource({
         models: { providers: [provider({ id: "claude", label: "Claude" })] },
-        features: { list: [toggleFeature("plan_mode", true)] },
+        optionControls: { controls: [toggleControl("plan_mode")], options: { plan_mode: true } },
       }),
       modes: undefined,
     });
@@ -323,9 +328,10 @@ describe("Command Center agent-control contributions", () => {
           selectedId: "default",
           defaultModeId: "default",
         },
-        features: {
-          list: [toggleFeature("plan_mode", true, "list-todo")],
-          set: (id, value) => {
+        optionControls: {
+          controls: [toggleControl("plan_mode", "list-todo")],
+          options: { plan_mode: true },
+          onSetOption: (id, value) => {
             calls.push([id, value]);
           },
         },
@@ -341,9 +347,10 @@ describe("Command Center agent-control contributions", () => {
     const calls: [string, unknown][] = [];
     const contributions = buildAgentControlContributions(
       makeSource({
-        features: {
-          list: [toggleFeature("fast_mode", false, "zap"), toggleFeature("auto_accept", true)],
-          set: (id, value) => {
+        optionControls: {
+          controls: [toggleControl("fast_mode", "zap"), toggleControl("auto_accept")],
+          options: { fast_mode: false, auto_accept: true },
+          onSetOption: (id, value) => {
             calls.push([id, value]);
           },
         },
@@ -376,7 +383,7 @@ describe("Command Center agent-control contributions", () => {
           selectedId: "default",
           defaultModeId: "default",
         },
-        features: { list: [toggleFeature("fast_mode")] },
+        optionControls: { controls: [toggleControl("fast_mode")], options: {} },
       }),
     );
     const ranks = new Map<string, number>();

packages/app/src/command-center/agent-control-contributions.ts

@@ -1,9 +1,10 @@
 import type {
-  AgentFeature,
   AgentMode,
+  AgentOptionControl,
   AgentProvider,
   AgentSelectOption,
 } from "@getpaseo/protocol/agent-types";
+import { readToggleOption, type ComposerOptionControls } from "@/agent-controls/option-controls";
 import type { ProviderSelectorProvider } from "@/provider-selection/provider-selection";
 import { formatAgentModeLabel, formatThinkingOptionLabel } from "@/agent-controls/labels";
 import {
@@ -61,7 +62,7 @@ export interface AgentControlContributionIcons {
   thinking: CommandCenterIcon;
   planMode: CommandCenterIcon;
   mode(modeId: string): CommandCenterIcon;
-  feature(feature: AgentFeature): CommandCenterIcon;
+  control(control: AgentOptionControl): CommandCenterIcon;
 }
 
 interface CommandCenterChoice {
@@ -105,10 +106,7 @@ export interface AgentControlContributionSource {
     defaultModeId: string | null;
     select(modeId: string): void | Promise<void>;
   };
-  features: {
-    list: readonly AgentFeature[];
-    set(featureId: string, value: unknown): void | Promise<void>;
-  };
+  optionControls: ComposerOptionControls;
 }
 
 function buildContributions(
@@ -242,18 +240,19 @@ function toggleChoices(input: {
 }
 
 function buildPlanModeGroup(source: AgentControlContributionSource): CommandCenterChoiceGroup {
-  const planFeature = source.features.list.find(
-    (feature) => feature.id === PLAN_MODE_FEATURE_ID && feature.type === "toggle",
+  const { controls, options, onSetOption } = source.optionControls;
+  const planControl = controls.find(
+    (control) => control.key === PLAN_MODE_FEATURE_ID && control.type === "toggle",
   );
   let choices: CommandCenterChoice[] = [];
-  if (planFeature?.type === "toggle") {
+  if (planControl?.type === "toggle") {
     choices = toggleChoices({
       source,
       key: "plan",
-      icon: source.icons.feature(planFeature),
-      isOn: planFeature.value,
-      turnOn: () => source.features.set(PLAN_MODE_FEATURE_ID, true),
-      turnOff: () => source.features.set(PLAN_MODE_FEATURE_ID, false),
+      icon: source.icons.control(planControl),
+      isOn: readToggleOption(planControl, options),
+      turnOn: () => onSetOption(PLAN_MODE_FEATURE_ID, true),
+      turnOff: () => onSetOption(PLAN_MODE_FEATURE_ID, false),
     });
   } else if (source.modes) {
     const modes = source.modes;
@@ -280,18 +279,19 @@ function buildPlanModeGroup(source: AgentControlContributionSource): CommandCent
 }
 
 function buildFastModeGroup(source: AgentControlContributionSource): CommandCenterChoiceGroup {
-  const fastFeature = source.features.list.find(
-    (feature) => feature.id === FAST_MODE_FEATURE_ID && feature.type === "toggle",
+  const { controls, options, onSetOption } = source.optionControls;
+  const fastControl = controls.find(
+    (control) => control.key === FAST_MODE_FEATURE_ID && control.type === "toggle",
   );
   const choices =
-    fastFeature?.type === "toggle"
+    fastControl?.type === "toggle"
       ? toggleChoices({
           source,
           key: "fast",
-          icon: source.icons.feature(fastFeature),
-          isOn: fastFeature.value,
-          turnOn: () => source.features.set(FAST_MODE_FEATURE_ID, true),
-          turnOff: () => source.features.set(FAST_MODE_FEATURE_ID, false),
+          icon: source.icons.control(fastControl),
+          isOn: readToggleOption(fastControl, options),
+          turnOn: () => onSetOption(FAST_MODE_FEATURE_ID, true),
+          turnOff: () => onSetOption(FAST_MODE_FEATURE_ID, false),
         })
       : [];
   return {

packages/app/src/command-center/agent-control-registration.tsx

@@ -1,11 +1,6 @@
 import { useMemo } from "react";
 import { useTranslation } from "react-i18next";
-import type {
-  AgentFeature,
-  AgentMode,
-  AgentProvider,
-  AgentSelectOption,
-} from "@getpaseo/protocol/agent-types";
+import type { AgentMode, AgentProvider, AgentSelectOption } from "@getpaseo/protocol/agent-types";
 import type { AgentProviderDefinition } from "@getpaseo/protocol/provider-manifest";
 import {
   getAgentFeatureIcon,
@@ -14,6 +9,7 @@ import {
   ThinkingIcon,
 } from "@/agent-controls/icons";
 import { useProviderIcons } from "@/components/provider-icons";
+import type { ComposerOptionControls } from "@/agent-controls/option-controls";
 import type { ProviderSelectorProvider } from "@/provider-selection/provider-selection";
 import {
   buildAgentControlContributions,
@@ -44,15 +40,15 @@ export interface AgentControlCommandCenterSource {
     selectedId: string | null | undefined;
     select(modeId: string): void | Promise<void>;
   };
-  features: {
-    list: readonly AgentFeature[] | undefined;
-    set?: (featureId: string, value: unknown) => void | Promise<void>;
-  };
+  /** Absent when the surface cannot change options (the agent has no client). */
+  optionControls: ComposerOptionControls | null;
 }
 
-function ignoreAgentFeatureChange(): void {
-  return;
-}
+const NO_OPTION_CONTROLS: ComposerOptionControls = {
+  controls: [],
+  options: {},
+  onSetOption: () => undefined,
+};
 
 function resolveDefaultModeId(
   provider: string | null | undefined,
@@ -87,7 +83,7 @@ export function useAgentControlCommandCenterActions(input: {
 }): void {
   const { t } = useTranslation();
   const { controls } = input;
-  const { features, models, modes, thinking } = controls;
+  const { optionControls, models, modes, thinking } = controls;
   const getProviderIcon = useProviderIcons(controls.serverId);
   const actions = useMemo(
     () =>
@@ -104,7 +100,7 @@ export function useAgentControlCommandCenterActions(input: {
             getCommandCenterIcon(
               getAgentModeIcon(controls.provider ?? "", modeId, controls.providerDefinitions),
             ),
-          feature: (feature) => getCommandCenterIcon(getAgentFeatureIcon(feature.icon)),
+          control: (control) => getCommandCenterIcon(getAgentFeatureIcon(control.icon)),
         },
         models: {
           providers: models.providers,
@@ -123,10 +119,7 @@ export function useAgentControlCommandCenterActions(input: {
           modes?.select,
           resolveDefaultModeId(controls.provider, controls.providerDefinitions),
         ),
-        features: {
-          list: features.set ? (features.list ?? []) : [],
-          set: features.set ?? ignoreAgentFeatureChange,
-        },
+        optionControls: optionControls ?? NO_OPTION_CONTROLS,
       }),
     [
       getProviderIcon,
@@ -134,8 +127,7 @@ export function useAgentControlCommandCenterActions(input: {
       controls.provider,
       controls.providerDefinitions,
       controls.serverId,
-      features.list,
-      features.set,
+      optionControls,
       models.providers,
       models.select,
       models.selectedModelId,

packages/app/src/composer/agent-controls/composer-control.browser.test.tsx

@@ -0,0 +1,175 @@
+import React from "react";
+import { cleanup, fireEvent, render, screen, waitFor } from "@testing-library/react";
+import { Scan } from "lucide-react-native";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import type { AgentOptionControl } from "@getpaseo/protocol/agent-types";
+import type { ToastApi } from "@/components/toast-host";
+import { ToastApiProvider } from "@/contexts/toast-api-context";
+import { ComposerControls, type ComposerControlItem } from "./composer-control";
+import { useAgentControlItems } from "./control-items";
+import { resolveComposerControlPresentation } from "./layout";
+
+beforeEach(() => vi.stubGlobal("React", React));
+afterEach(cleanup);
+
+const base = { id: "x", title: "Context", icon: Scan };
+
+type RecordingToast = ToastApi & { error: ReturnType<typeof vi.fn> };
+
+function createToast(): RecordingToast {
+  return { error: vi.fn() } as unknown as RecordingToast;
+}
+
+function ignoreOpenChange() {}
+
+function Controls({
+  items,
+  surface,
+  toast,
+}: {
+  items: ComposerControlItem[];
+  surface: "toolbar" | "sheet";
+  toast: ToastApi;
+}) {
+  return (
+    <ToastApiProvider api={toast}>
+      <ComposerControls
+        items={items}
+        surface={surface}
+        openId={null}
+        onOpenIdChange={ignoreOpenChange}
+      />
+    </ToastApiProvider>
+  );
+}
+
+function renderControls(items: ComposerControlItem[], surface: "toolbar" | "sheet" = "toolbar") {
+  const toast = createToast();
+  render(<Controls items={items} surface={surface} toast={toast} />);
+  return toast;
+}
+
+describe("ComposerControls", () => {
+  it("shows a select's chosen label, or only its icon when asked", () => {
+    const select: ComposerControlItem = {
+      ...base,
+      type: "select",
+      value: "large",
+      choices: [
+        { value: "small", label: "Small" },
+        { value: "large", label: "Large" },
+      ],
+      onChange: () => undefined,
+    };
+    renderControls([select]);
+    expect(screen.getByRole("button", { name: "Context" }).textContent).toContain("Large");
+  });
+
+  it("names the choice on an icon-only select, without drawing it", () => {
+    renderControls([
+      {
+        ...base,
+        type: "select",
+        value: "large",
+        iconOnly: true,
+        choices: [{ value: "large", label: "Large" }],
+        onChange: () => undefined,
+      },
+    ]);
+    const trigger = screen.getByRole("button", { name: "Context: Large" });
+    expect(trigger.textContent).not.toContain("Large");
+  });
+
+  it("flips a toggle on press in the toolbar", () => {
+    const onChange = vi.fn();
+    renderControls([{ ...base, type: "toggle", value: true, onChange }]);
+    fireEvent.click(screen.getByRole("button", { name: "Context" }));
+    expect(onChange).toHaveBeenCalledWith(false);
+  });
+
+  it("lists a toggle as On or Off in the sheet", () => {
+    renderControls([{ ...base, type: "toggle", value: true, onChange: () => undefined }], "sheet");
+    expect(screen.getByRole("button", { name: "Context" }).textContent).toContain("On");
+  });
+
+  it("reports a failed command the way a built-in control does, and frees the control", async () => {
+    let reject: (error: Error) => void = () => undefined;
+    const onPress = vi.fn(
+      () =>
+        new Promise<void>((_resolve, rejectPromise) => {
+          reject = rejectPromise;
+        }),
+    );
+    const toast = renderControls([{ ...base, type: "action", onPress }]);
+    const button = screen.getByRole("button", { name: "Context" });
+
+    fireEvent.click(button);
+    // While the command is in flight the control cannot be pressed again.
+    await waitFor(() => expect(button.getAttribute("aria-disabled")).toBe("true"));
+    fireEvent.click(button);
+    expect(onPress).toHaveBeenCalledTimes(1);
+
+    reject(new Error("Unknown or unavailable provider: x"));
+    await waitFor(() =>
+      expect(toast.error).toHaveBeenCalledWith("Unknown or unavailable provider: x"),
+    );
+    await waitFor(() => expect(button.getAttribute("aria-disabled")).not.toBe("true"));
+  });
+
+  it("reports a command that throws before it returns", () => {
+    const toast = renderControls([
+      {
+        ...base,
+        type: "action",
+        onPress: () => {
+          throw new Error("No such control");
+        },
+      },
+    ]);
+    fireEvent.click(screen.getByRole("button", { name: "Context" }));
+    expect(toast.error).toHaveBeenCalledWith("No such control");
+  });
+});
+
+const FAST_ON = { fast_mode: true };
+
+describe("provider option controls", () => {
+  const fastMode: AgentOptionControl = {
+    type: "toggle",
+    key: "fast_mode",
+    label: "Fast",
+    defaultValue: false,
+  };
+  function OptionControls({
+    options,
+    onSetOption,
+  }: {
+    options: Record<string, unknown>;
+    onSetOption: (key: string, value: unknown) => void;
+  }) {
+    const optionControls = React.useMemo(
+      () => ({ controls: [fastMode], options, onSetOption }),
+      [onSetOption, options],
+    );
+    const items = useAgentControlItems({
+      surface: "toolbar",
+      presentation: resolveComposerControlPresentation("full"),
+      thinking: null,
+      optionControls,
+    });
+    return <Controls items={items.features} surface="toolbar" toast={TOAST} />;
+  }
+  const TOAST = createToast();
+
+  function recordWrites(writes: Array<[string, unknown]>) {
+    return (key: string, value: unknown) => void writes.push([key, value]);
+  }
+
+  it("write the toggled option from the agent's current options", () => {
+    const writes: Array<[string, unknown]> = [];
+    const onSetOption = recordWrites(writes);
+    render(<OptionControls options={FAST_ON} onSetOption={onSetOption} />);
+    fireEvent.click(screen.getByTestId("agent-feature-fast_mode"));
+    expect(writes).toEqual([["fast_mode", false]]);
+  });
+});

packages/app/src/composer/agent-controls/composer-control.tsx

@@ -0,0 +1,306 @@
+import {
+  createContext,
+  useCallback,
+  useContext,
+  useMemo,
+  useRef,
+  useState,
+  type ReactElement,
+} from "react";
+import type { TFunction } from "i18next";
+import { useTranslation } from "react-i18next";
+import { Text, View } from "react-native";
+import { StyleSheet } from "react-native-unistyles";
+import type { AgentControlIcon } from "@/agent-controls/icons";
+import type { SheetHeader } from "@/components/adaptive-modal-sheet";
+import { Combobox, type ComboboxOption } from "@/components/ui/combobox";
+import { Tooltip, TooltipContent, TooltipTrigger } from "@/components/ui/tooltip";
+import { AgentControlTrigger } from "@/composer/agent-controls/control";
+import { useToast } from "@/contexts/toast-api-context";
+import { toErrorMessage } from "@/utils/error-messages";
+
+interface ComposerControlBase {
+  id: string;
+  title: string;
+  icon: AgentControlIcon;
+  /** Tints the icon; muted when absent. */
+  highlight?: "blue" | "green" | "yellow";
+  /** Defaults to the title, or to "title: choice" on an icon-only select. */
+  tooltip?: string;
+  /** Defaults to the tooltip. */
+  accessibilityLabel?: string;
+  testID?: string;
+}
+
+export interface ComposerControlChoice {
+  value: string;
+  label: string;
+  description?: string;
+}
+
+/**
+ * One control in the composer's toolbar, drawn from data. Provider option controls, thinking and
+ * plugin controls all come through here, so each is an icon in the toolbar and a row in the sheet.
+ */
+export type ComposerControlItem =
+  | (ComposerControlBase & {
+      type: "toggle";
+      value: boolean;
+      onChange: (value: boolean) => void | Promise<void>;
+    })
+  | (ComposerControlBase & {
+      type: "select";
+      value: string | null;
+      choices: readonly ComposerControlChoice[];
+      onChange: (value: string) => void | Promise<void>;
+      /** The toolbar trigger shows only the icon. */
+      iconOnly?: boolean;
+      showCaret?: boolean;
+      searchable?: boolean;
+      desktopMinWidth?: number;
+      renderOption?: (args: {
+        option: ComboboxOption;
+        selected: boolean;
+        active: boolean;
+        onPress: () => void;
+      }) => ReactElement;
+    })
+  | (ComposerControlBase & {
+      type: "action";
+      onPress: () => void | Promise<void>;
+    });
+
+export type ComposerControlSurface = "toolbar" | "sheet";
+
+const ComposerControlSurfaceContext = createContext<ComposerControlSurface>("toolbar");
+export const ComposerControlSurfaceProvider = ComposerControlSurfaceContext.Provider;
+
+/** Where the control being drawn sits: the toolbar, or a row in the overflow sheet. */
+export function useComposerControlSurface(): ComposerControlSurface {
+  return useContext(ComposerControlSurfaceContext);
+}
+
+interface ComposerControlProps {
+  item: ComposerControlItem;
+  surface: ComposerControlSurface;
+  disabled?: boolean;
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+  /** Runs after a toolbar toggle or action, so the composer can take focus back. */
+  onActionComplete?: () => void;
+}
+
+interface ControlView {
+  options: ComboboxOption[];
+  /** The list's selected id. */
+  selectedId: string;
+  /** What the trigger shows beside the icon. */
+  value: string;
+  iconOnly: boolean;
+  tooltip: string;
+  /** Whether pressing the trigger opens a list instead of acting. */
+  opensList: boolean;
+}
+
+function describeControl(
+  item: ComposerControlItem,
+  surface: ComposerControlSurface,
+  t: TFunction,
+): ControlView {
+  const isSheet = surface === "sheet";
+  if (item.type === "action") {
+    return {
+      options: [],
+      selectedId: "",
+      value: "",
+      iconOnly: true,
+      tooltip: item.tooltip ?? item.title,
+      opensList: false,
+    };
+  }
+  if (item.type === "toggle") {
+    const label = item.value ? t("agentControls.features.on") : t("agentControls.features.off");
+    return {
+      options: [
+        { id: "true", label: t("agentControls.features.on") },
+        { id: "false", label: t("agentControls.features.off") },
+      ],
+      selectedId: String(item.value),
+      value: label,
+      iconOnly: true,
+      tooltip: item.tooltip ?? item.title,
+      opensList: isSheet,
+    };
+  }
+  const choiceLabel =
+    item.choices.find((choice) => choice.value === item.value)?.label ?? item.title;
+  const iconOnly = item.iconOnly === true;
+  return {
+    options: item.choices.map((choice) => ({
+      id: choice.value,
+      label: choice.label,
+      description: choice.description,
+    })),
+    selectedId: String(item.value ?? ""),
+    value: choiceLabel,
+    iconOnly,
+    tooltip: item.tooltip ?? (iconOnly ? `${item.title}: ${choiceLabel}` : item.title),
+    opensList: true,
+  };
+}
+
+export function ComposerControl({
+  item,
+  surface,
+  disabled = false,
+  open,
+  onOpenChange,
+  onActionComplete,
+}: ComposerControlProps) {
+  const { t } = useTranslation();
+  const anchorRef = useRef<View>(null);
+  const isSheet = surface === "sheet";
+  const sheetHeader = useMemo<SheetHeader>(() => ({ title: item.title }), [item.title]);
+  const view = useMemo(() => describeControl(item, surface, t), [item, surface, t]);
+
+  // A command that returns a promise keeps the control pending until it settles, and a failure
+  // reaches the user the way a built-in live control's does.
+  const toast = useToast();
+  const [pending, setPending] = useState(false);
+  const run = useCallback(
+    (invoke: () => void | Promise<void>) => {
+      try {
+        const result = invoke();
+        if (!result) return;
+        setPending(true);
+        result
+          .catch((error: unknown) => toast.error(toErrorMessage(error)))
+          .finally(() => setPending(false));
+      } catch (error) {
+        toast.error(toErrorMessage(error));
+      }
+    },
+    [toast],
+  );
+  const handlePress = useCallback(() => {
+    if (item.type === "toggle") run(() => item.onChange(!item.value));
+    else if (item.type === "action") run(item.onPress);
+    onActionComplete?.();
+  }, [item, onActionComplete, run]);
+  const handleOpenPress = useCallback(() => onOpenChange(!open), [onOpenChange, open]);
+  const handleSelect = useCallback(
+    (value: string) => {
+      if (item.type === "select") run(() => item.onChange(value));
+      else if (item.type === "toggle") run(() => item.onChange(value === "true"));
+    },
+    [item, run],
+  );
+
+  const select = item.type === "select" ? item : null;
+  const trigger = (
+    <AgentControlTrigger
+      ref={anchorRef}
+      icon={item.icon}
+      iconColor={item.highlight ? styles[item.highlight].color : undefined}
+      surface={surface}
+      label={item.title}
+      value={view.value}
+      showToolbarLabel={!view.iconOnly}
+      showCaret={select?.showCaret === true && !isSheet}
+      open={view.opensList && open}
+      disabled={disabled || pending}
+      onPress={view.opensList ? handleOpenPress : handlePress}
+      accessibilityLabel={item.accessibilityLabel ?? view.tooltip}
+      testID={item.testID}
+    />
+  );
+
+  return (
+    <>
+      {isSheet ? (
+        trigger
+      ) : (
+        <Tooltip delayDuration={0} enabledOnDesktop enabledOnMobile={false}>
+          <TooltipTrigger asChild triggerRefProp="ref">
+            {trigger}
+          </TooltipTrigger>
+          <TooltipContent side="top" align="center" offset={8}>
+            <Text style={styles.tooltipText}>{view.tooltip}</Text>
+          </TooltipContent>
+        </Tooltip>
+      )}
+      {view.opensList ? (
+        <Combobox
+          options={view.options}
+          value={view.selectedId}
+          onSelect={handleSelect}
+          open={open}
+          onOpenChange={onOpenChange}
+          anchorRef={anchorRef}
+          presentation={isSheet ? "push" : undefined}
+          desktopPlacement={isSheet ? undefined : "top-start"}
+          desktopMinWidth={select?.desktopMinWidth}
+          searchable={select ? select.searchable : false}
+          renderOption={select?.renderOption}
+          header={isSheet ? sheetHeader : undefined}
+        />
+      ) : null}
+    </>
+  );
+}
+
+interface ComposerControlsProps {
+  items: readonly ComposerControlItem[];
+  surface: ComposerControlSurface;
+  disabled?: boolean;
+  /** The id of the item whose list is open. */
+  openId: string | null;
+  onOpenIdChange: (id: string | null) => void;
+  onActionComplete?: () => void;
+}
+
+/** A row of Paseo-owned controls that share one open list at a time. */
+export function ComposerControls({
+  items,
+  onOpenIdChange,
+  openId,
+  ...rest
+}: ComposerControlsProps) {
+  return (
+    <>
+      {items.map((item) => (
+        <ComposerControlSlot
+          key={item.id}
+          item={item}
+          open={openId === item.id}
+          onOpenIdChange={onOpenIdChange}
+          {...rest}
+        />
+      ))}
+    </>
+  );
+}
+
+function ComposerControlSlot({
+  item,
+  open,
+  onOpenIdChange,
+  ...rest
+}: Omit<ComposerControlsProps, "items" | "openId"> & { item: ComposerControlItem; open: boolean }) {
+  const handleOpenChange = useCallback(
+    (next: boolean) => onOpenIdChange(next ? item.id : null),
+    [item.id, onOpenIdChange],
+  );
+  return <ComposerControl item={item} open={open} onOpenChange={handleOpenChange} {...rest} />;
+}
+
+const styles = StyleSheet.create((theme) => ({
+  blue: { color: theme.colors.palette.blue[400] },
+  green: { color: theme.colors.palette.green[400] },
+  yellow: { color: theme.colors.palette.yellow[400] },
+  tooltipText: {
+    color: theme.colors.foreground,
+    fontSize: theme.fontSize.base,
+    lineHeight: theme.fontSize.base * 1.4,
+  },
+}));

packages/app/src/composer/agent-controls/control-items.tsx

@@ -0,0 +1,165 @@
+import { useMemo } from "react";
+import type { TFunction } from "i18next";
+import { useTranslation } from "react-i18next";
+import { StyleSheet } from "react-native-unistyles";
+import type { AgentOptionControl, ProviderOptions } from "@getpaseo/protocol/agent-types";
+import { getAgentFeatureIcon, ThinkingIcon } from "@/agent-controls/icons";
+import {
+  getControlTooltip,
+  isControlActive,
+  readSelectOption,
+  readToggleOption,
+  type ComposerOptionControls,
+} from "@/agent-controls/option-controls";
+import { ComboboxItem, type ComboboxOption } from "@/components/ui/combobox";
+import {
+  type ComposerControlItem,
+  type ComposerControlSurface,
+} from "@/composer/agent-controls/composer-control";
+import type { ComposerControlPresentation } from "@/composer/agent-controls/layout";
+import { getAgentControlHintKey, getFeatureHighlightColor } from "@/composer/agent-controls/utils";
+
+const SEARCH_THRESHOLD = 6;
+
+function getFeatureHighlight(
+  control: AgentOptionControl,
+  options: ProviderOptions,
+): ComposerControlItem["highlight"] {
+  if (!isControlActive(control, options)) return undefined;
+  const color = getFeatureHighlightColor(control.key);
+  return color === "default" ? undefined : color;
+}
+
+function toFeatureItem(
+  control: AgentOptionControl,
+  optionControls: ComposerOptionControls,
+): ComposerControlItem {
+  const { options, onSetOption } = optionControls;
+  const base = {
+    id: `feature-${control.key}`,
+    title: control.label,
+    icon: getAgentFeatureIcon(control.icon),
+    highlight: getFeatureHighlight(control, options),
+    testID: `agent-feature-${control.key}`,
+  };
+  if (control.type === "toggle") {
+    return {
+      ...base,
+      type: "toggle",
+      tooltip: getControlTooltip(control),
+      value: readToggleOption(control, options),
+      onChange: (value) => onSetOption(control.key, value),
+    };
+  }
+  const iconOnly = control.desktopTrigger === "icon";
+  return {
+    ...base,
+    type: "select",
+    tooltip: iconOnly ? undefined : getControlTooltip(control),
+    value: readSelectOption(control, options),
+    choices: control.choices,
+    iconOnly,
+    onChange: (value) => onSetOption(control.key, value),
+  };
+}
+
+interface ThinkingControl {
+  options: readonly { id: string; label: string }[];
+  selectedId: string | undefined;
+  onSelect: (id: string) => void;
+  /** The select's displayed label, falling back like the compact model sheet. */
+  displayLabel: string;
+}
+
+/** The thinking select and the option controls, as the data `ComposerControl` draws. */
+export function useAgentControlItems({
+  surface,
+  presentation,
+  thinking,
+  optionControls,
+}: {
+  surface: ComposerControlSurface;
+  presentation: ComposerControlPresentation;
+  thinking: ThinkingControl | null;
+  optionControls: ComposerOptionControls | undefined;
+}): { thinking: ComposerControlItem[]; features: ComposerControlItem[] } {
+  const { t } = useTranslation();
+
+  const thinkingItem = useMemo(
+    () => (thinking ? [toThinkingItem({ thinking, surface, presentation, t })] : []),
+    [presentation, surface, t, thinking],
+  );
+  const features = useMemo(
+    () =>
+      optionControls
+        ? optionControls.controls.map((control) => toFeatureItem(control, optionControls))
+        : [],
+    [optionControls],
+  );
+  return { thinking: thinkingItem, features };
+}
+
+function toThinkingItem({
+  thinking,
+  surface,
+  presentation,
+  t,
+}: {
+  thinking: ThinkingControl;
+  surface: ComposerControlSurface;
+  presentation: ComposerControlPresentation;
+  t: TFunction;
+}): ComposerControlItem {
+  const isSheet = surface === "sheet";
+  return {
+    id: "thinking",
+    type: "select",
+    title: t("agentControls.thinking.title"),
+    icon: ThinkingIcon,
+    tooltip: t(getAgentControlHintKey("thinking")),
+    accessibilityLabel: t("agentControls.thinking.selectWithValue", {
+      value: thinking.displayLabel,
+    }),
+    testID: isSheet ? "agent-controls-thinking" : "agent-thinking-selector",
+    value: thinking.options.some((option) => option.id === thinking.selectedId)
+      ? (thinking.selectedId ?? null)
+      : (thinking.options[0]?.id ?? null),
+    choices: thinking.options.map((option) => ({ value: option.id, label: option.label })),
+    onChange: thinking.onSelect,
+    iconOnly: !presentation.showThinkingLabel,
+    showCaret: presentation.showCarets,
+    searchable: !isSheet && thinking.options.length > SEARCH_THRESHOLD,
+    desktopMinWidth: 200,
+    renderOption: (args) => <ThinkingOption {...args} />,
+  };
+}
+
+function ThinkingOption({
+  option,
+  selected,
+  active,
+  onPress,
+}: {
+  option: ComboboxOption;
+  selected: boolean;
+  active: boolean;
+  onPress: () => void;
+}) {
+  const leadingSlot = useMemo(
+    () => <ThinkingIcon size={16} color={styles.thinkingIcon.color} />,
+    [],
+  );
+  return (
+    <ComboboxItem
+      label={option.label}
+      selected={selected}
+      active={active}
+      onPress={onPress}
+      leadingSlot={leadingSlot}
+    />
+  );
+}
+
+const styles = StyleSheet.create((theme) => ({
+  thinkingIcon: { color: theme.colors.foreground },
+}));

packages/app/src/composer/agent-controls/layout.test.ts

@@ -34,6 +34,7 @@ describe("composer control layout", () => {
       hasThinking: true,
       hasMode: true,
       features: [{ type: "toggle" as const }],
+      pluginItems: 0,
       fontScale: 1,
     };
 
@@ -95,6 +96,7 @@ describe("composer control layout", () => {
           hasThinking: true,
           hasMode: true,
           features: [{ type: "toggle" }],
+          pluginItems: 0,
           fontScale: 1,
         },
       }),
@@ -107,6 +109,7 @@ describe("composer control layout", () => {
           hasThinking: true,
           hasMode: true,
           features: [{ type: "toggle" }, { type: "select", label: "Tools" }],
+          pluginItems: 0,
           fontScale: 1,
         },
       }),
@@ -119,6 +122,7 @@ describe("composer control layout", () => {
           hasThinking: true,
           hasMode: true,
           features: [{ type: "toggle" }],
+          pluginItems: 0,
           fontScale: 1.25,
         },
       }),
@@ -133,6 +137,7 @@ describe("composer control layout", () => {
         hasModel: true,
         hasThinking: true,
         hasMode: true,
+        pluginItems: 0,
         fontScale: 1,
       },
     };
@@ -154,6 +159,34 @@ describe("composer control layout", () => {
     ).toBe("condensed");
   });
 
+  it("condenses to make room for plugin items and keeps them in the overflow", () => {
+    const base = {
+      availableWidth: 430,
+      currentDensity: "full" as const,
+      controls: {
+        hasModel: true,
+        hasThinking: true,
+        hasMode: true,
+        features: [],
+        fontScale: 1,
+      },
+    };
+
+    expect(
+      resolveComposerControlDensity({ ...base, controls: { ...base.controls, pluginItems: 0 } }),
+    ).toBe("full");
+    expect(
+      resolveComposerControlDensity({ ...base, controls: { ...base.controls, pluginItems: 2 } }),
+    ).toBe("condensed");
+    expect(
+      resolveComposerControlDensity({
+        ...base,
+        availableWidth: 250,
+        controls: { ...base.controls, pluginItems: 2 },
+      }),
+    ).toBe("tight");
+  });
+
   it("gives every toolbar control one shell and one platform glyph envelope", () => {
     expect(COMPOSER_TOOLBAR_GEOMETRY).toEqual({
       controlSize: 28,

packages/app/src/composer/agent-controls/layout.ts

@@ -5,6 +5,8 @@ export interface ComposerControlPresence {
   hasThinking: boolean;
   hasMode: boolean;
   features: readonly ComposerFeatureControlPresence[];
+  /** Plugin composer items. Each is budgeted like a select with a short label. */
+  pluginItems: number;
   fontScale: number;
 }
 
@@ -26,6 +28,7 @@ export const COMPOSER_TOOLBAR_GEOMETRY = {
 } as const;
 
 const DENSITY_HYSTERESIS = 12;
+const PLUGIN_ITEM_LABEL = "Plugin item";
 
 function normalizedFontScale(fontScale: number): number {
   return Number.isFinite(fontScale) ? Math.max(1, fontScale) : 1;
@@ -62,7 +65,9 @@ function resolveCondensedFloor(controls: ComposerControlPresence): number {
   if (controls.hasModel) widths.push(36 + 60 * fontScale);
   if (controls.hasThinking) widths.push(COMPOSER_TOOLBAR_GEOMETRY.controlSize);
   if (controls.hasMode) widths.push(36 + 96 * fontScale);
-  if (controls.features.length > 0) widths.push(COMPOSER_TOOLBAR_GEOMETRY.controlSize);
+  if (controls.features.length > 0 || controls.pluginItems > 0) {
+    widths.push(COMPOSER_TOOLBAR_GEOMETRY.controlSize);
+  }
   return sumControlWidths(widths);
 }
 
@@ -75,6 +80,11 @@ function resolveFullFloor(controls: ComposerControlPresence): number {
   for (const feature of controls.features) {
     widths.push(resolveFeatureControlWidth(feature, fontScale));
   }
+  for (let index = 0; index < controls.pluginItems; index++) {
+    widths.push(
+      resolveFeatureControlWidth({ type: "select", label: PLUGIN_ITEM_LABEL }, fontScale),
+    );
+  }
   return sumControlWidths(widths);
 }
 

packages/app/src/composer/agent-controls/mode.test.ts

@@ -25,15 +25,19 @@ describe("resolveAgentControlsMode", () => {
         onSelectMode: () => undefined,
         models: [],
         selectedModel: "",
-        onSelectModel: () => undefined,
+        onSelectModel: () => true,
         isModelLoading: false,
         modelSelectorProviders: [],
         isAllModelsLoading: false,
-        onSelectProviderAndModel: () => undefined,
+        onSelectProviderAndModel: () => true,
+        options: {},
+        onSetOption: () => undefined,
         thinkingOptions: [],
         selectedThinkingOptionId: "",
         onSelectThinkingOption: () => undefined,
         onApplyAgentProfile: () => undefined,
+        metadata: {},
+        onSetMetadata: () => undefined,
       }),
     ).toBe("draft");
   });

packages/app/src/composer/agent-controls/model-sheet.tsx

@@ -5,6 +5,7 @@ import { StyleSheet } from "react-native-unistyles";
 import type { AgentProvider } from "@getpaseo/protocol/agent-types";
 import type { AgentProfilePicker, AgentProfileSeed } from "@/agent-profiles";
 import { AdaptiveModalSheet } from "@/components/adaptive-modal-sheet";
+import type { ContextBridge } from "@/components/ui/isolated-bottom-sheet-modal";
 import { ComboboxTrigger } from "@/components/ui/combobox-trigger";
 import { useProviderIcon } from "@/components/provider-icons";
 import { ModelBrowser, useModelBrowser } from "@/components/model-browser";
@@ -43,6 +44,8 @@ interface CompactModelSheetProps {
   serverId?: string | null;
   glyphSize: number;
   canSwitchProvider: boolean;
+  /** Carries the composer's contexts into the sheets, which draw away from it. */
+  contextBridge?: ContextBridge | null;
   children: ReactNode;
 }
 
@@ -95,6 +98,7 @@ export function CompactModelSheet({
   serverId = null,
   glyphSize,
   canSwitchProvider,
+  contextBridge = null,
   children,
 }: CompactModelSheetProps) {
   const { t } = useTranslation();
@@ -299,6 +303,7 @@ export function CompactModelSheet({
         snapPoints={SNAP_POINTS}
         scrollable={false}
         contentStyle={styles.sheetBody}
+        contextBridge={contextBridge}
         testID="agent-controls-model-sheet"
       >
         <View
@@ -347,6 +352,7 @@ export function CompactModelSheet({
           scrollable={false}
           presentation="push"
           contentStyle={styles.sheetBody}
+          contextBridge={contextBridge}
           testID="agent-controls-model-browser-sheet"
         >
           <View

packages/app/src/composer/agent-controls/sheet-bridge.tsx

@@ -0,0 +1,43 @@
+import { useCallback } from "react";
+import { QueryClientProvider, useQueryClient } from "@tanstack/react-query";
+import type { ContextBridge } from "@/components/ui/isolated-bottom-sheet-modal";
+import { ComposerControlLayoutProvider, useComposerControlLayout } from "./layout-context";
+import {
+  ComposerAgentProvider,
+  ComposerInputProvider,
+  useComposerAgent,
+  useComposerInput,
+} from "@/composer/session";
+import { ToastApiProvider, useToast } from "@/contexts/toast-api-context";
+
+/**
+ * A phone's overflow draws in a sheet whose content lands at the app root, away from the
+ * composer. This carries across what a control in it reads from the composer: the agent and input
+ * a plugin's `useComposer()` sits on, the layout, and the toast and query client the controls use.
+ * Call it from inside the composer, outside any sheet.
+ */
+export function useComposerSheetBridge(): ContextBridge {
+  const layout = useComposerControlLayout();
+  const agent = useComposerAgent();
+  const input = useComposerInput();
+  const toast = useToast();
+  const queryClient = useQueryClient();
+  return useCallback<ContextBridge>(
+    (content) => (
+      <QueryClientProvider client={queryClient}>
+        <ToastApiProvider api={toast}>
+          <ComposerControlLayoutProvider value={layout}>
+            <ComposerAgentProvider value={agent}>
+              {input ? (
+                <ComposerInputProvider value={input}>{content}</ComposerInputProvider>
+              ) : (
+                content
+              )}
+            </ComposerAgentProvider>
+          </ComposerControlLayoutProvider>
+        </ToastApiProvider>
+      </QueryClientProvider>
+    ),
+    [agent, input, layout, queryClient, toast],
+  );
+}

packages/app/src/composer/agent-controls/utils.test.ts

@@ -1,9 +1,7 @@
 import { describe, expect, it } from "vitest";
 import {
   getFeatureHighlightColor,
-  getFeatureTooltip,
   getAgentControlHintKey,
-  isFeatureActive,
   normalizeModelId,
   resolveAgentModelSelection,
 } from "./utils";
@@ -17,51 +15,12 @@ describe("getAgentControlHintKey", () => {
 });
 
 describe("feature metadata helpers", () => {
-  it("prefers explicit feature tooltip copy", () => {
-    expect(
-      getFeatureTooltip({
-        label: "Plan",
-        tooltip: "Toggle plan mode",
-      }),
-    ).toBe("Toggle plan mode");
-  });
-
-  it("falls back to the feature label when no tooltip is provided", () => {
-    expect(
-      getFeatureTooltip({
-        label: "Custom",
-      }),
-    ).toBe("Custom");
-  });
-
   it("maps feature highlight colors by feature id", () => {
     expect(getFeatureHighlightColor("fast_mode")).toBe("yellow");
     expect(getFeatureHighlightColor("service_tier")).toBe("yellow");
     expect(getFeatureHighlightColor("plan_mode")).toBe("blue");
     expect(getFeatureHighlightColor("other")).toBe("default");
   });
-
-  it("treats a select feature as active when a non-default option is selected", () => {
-    const speed = {
-      type: "select" as const,
-      id: "service_tier",
-      label: "Speed",
-      options: [
-        { id: "default", label: "Normal", isDefault: true },
-        { id: "fast", label: "Fast" },
-      ],
-    };
-    expect(isFeatureActive({ ...speed, value: "default" })).toBe(false);
-    expect(isFeatureActive({ ...speed, value: "fast" })).toBe(true);
-    expect(
-      isFeatureActive({
-        type: "toggle",
-        id: "fast_mode",
-        label: "Fast",
-        value: true,
-      }),
-    ).toBe(true);
-  });
 });
 
 describe("normalizeModelId", () => {

packages/app/src/composer/agent-controls/utils.ts

@@ -1,4 +1,4 @@
-import type { AgentFeature, AgentModelDefinition } from "@getpaseo/protocol/agent-types";
+import type { AgentModelDefinition } from "@getpaseo/protocol/agent-types";
 import { i18n } from "@/i18n/i18next";
 import { formatThinkingOptionLabel } from "@/agent-controls/labels";
 import {
@@ -35,16 +35,6 @@ export function normalizeModelId(modelId: string | null | undefined): string | n
   return normalized;
 }
 
-export function getFeatureTooltip(feature: Pick<AgentFeature, "label" | "tooltip">): string {
-  return feature.tooltip ?? feature.label;
-}
-
-export function isFeatureActive(feature: AgentFeature): boolean {
-  if (feature.type === "toggle") return feature.value;
-  const selectedOption = feature.options.find((option) => option.id === feature.value);
-  return selectedOption !== undefined && !selectedOption.isDefault;
-}
-
 export function getFeatureHighlightColor(featureId: string): FeatureHighlightColor {
   switch (featureId) {
     case FAST_MODE_FEATURE_ID:

packages/app/src/composer/draft/composer-agent.test.ts

@@ -0,0 +1,182 @@
+import { describe, expect, it } from "vitest";
+import type { AgentModelDefinition } from "@getpaseo/protocol/agent-types";
+import type { AgentProviderDefinition } from "@getpaseo/protocol/provider-manifest";
+import {
+  draftControlsRequest,
+  openDraftOptions,
+  shownDraftOptions,
+} from "@/agent-controls/draft-options-model";
+import { openAgentForm, type AgentFormCatalog } from "@/provider-selection/agent-form-store";
+import { draftComposerAgent } from "./composer-agent";
+
+function definition(id: string, modeId: string): AgentProviderDefinition {
+  return {
+    id,
+    label: id,
+    description: id,
+    defaultModeId: modeId,
+    modes: [{ id: modeId, label: modeId, icon: "ShieldCheck", colorTier: "safe" }],
+  };
+}
+
+function model(provider: string, id: string, isDefault = false): AgentModelDefinition {
+  return { provider, id, label: id, isDefault };
+}
+
+/** The host: two providers with catalogs, and one that is ready but lists no models. */
+const catalog: AgentFormCatalog = {
+  selectableProviders: new Map([
+    ["claude", definition("claude", "default")],
+    ["codex", definition("codex", "auto")],
+    ["opencode", definition("opencode", "build")],
+  ]),
+  models: new Map([
+    ["claude", [model("claude", "sonnet", true)]],
+    ["codex", [model("codex", "gpt-5.4", true), model("codex", "gpt-5.5")]],
+    ["opencode", []],
+  ]),
+  providerPreferences: () => undefined,
+};
+
+/** A draft composer on the real form and options models. */
+function openDraft(context: "draft" | "new-workspace") {
+  const form = openAgentForm(() => catalog);
+  const options = openDraftOptions({
+    provider: null,
+    currentProvider: () => form.getState().form.provider,
+  });
+  // The screen hands the options the provider the form reaches.
+  form.subscribe(() => options.observeProvider(form.getState().form.provider));
+  form.setProviderAndModel("claude", "");
+
+  function agent() {
+    const { form: current } = form.getState();
+    return draftComposerAgent({
+      context,
+      selectedProvider: current.provider,
+      selectedModel: current.model,
+      selectedMode: current.modeId,
+      thinking: current.thinkingOptionId || null,
+      isLocked: () => false,
+      options: shownDraftOptions(options.getState(), {
+        provider: current.provider,
+        requestKey: "",
+      }),
+      metadata: {},
+      onSelectProviderAndModel: form.setProviderAndModel,
+      onSelectModel: form.setModel,
+      onSelectMode: () => undefined,
+      onSelectThinkingOption: () => undefined,
+      onSetOption: options.setOption,
+      onSetMetadata: () => undefined,
+    });
+  }
+
+  /** What the daemon is asked to resolve for the agent this draft would create. */
+  function request() {
+    const { form: current } = form.getState();
+    return draftControlsRequest(options.getState(), {
+      provider: current.provider,
+      cwd: "/repo",
+      modeId: current.modeId,
+      modelId: current.model,
+    });
+  }
+
+  return { form, agent, request };
+}
+
+describe("a draft's options", () => {
+  it("belong to the provider the form has now, before the screen has rendered the change", () => {
+    const form = openAgentForm(() => catalog);
+    const options = openDraftOptions({
+      provider: null,
+      currentProvider: () => form.getState().form.provider,
+    });
+    // No subscription: the screen observes the provider in an effect, after the command ran.
+    form.setProviderAndModel("claude", "");
+    options.observeProvider("claude");
+    options.setOption("context", "1m");
+
+    form.setProviderAndModel("codex", "");
+    options.setOption("effort", "high");
+
+    expect(options.getState()).toMatchObject({ provider: "codex", edits: { effort: "high" } });
+  });
+});
+
+describe.each(["draft", "new-workspace"] as const)("the %s composer's agent", (context) => {
+  it("applies each awaited command before the next one runs", async () => {
+    const draft = openDraft(context);
+    // A plugin keeps the object it was handed across its awaits.
+    const retained = draft.agent();
+
+    await retained.setProvider("codex");
+    await retained.setModel("gpt-5.5");
+    await retained.setOptions({ context: "1m" });
+
+    const agent = draft.agent();
+    expect(agent).toMatchObject({
+      context,
+      provider: "codex",
+      model: "gpt-5.5",
+      options: { context: "1m" },
+    });
+    expect(draft.request()).toMatchObject({
+      provider: "codex",
+      model: "gpt-5.5",
+      providerOptions: { context: "1m" },
+    });
+  });
+
+  it("starts the options over when the provider is chosen by hand", async () => {
+    const draft = openDraft(context);
+    const retained = draft.agent();
+
+    await retained.setOptions({ context: "1m" });
+    expect(draft.agent().options).toEqual({ context: "1m" });
+    await retained.setProvider("codex");
+
+    expect(draft.agent().options).toEqual({});
+  });
+
+  it("creates with the provider's default again once a plugin resets an option", async () => {
+    const draft = openDraft(context);
+    const retained = draft.agent();
+
+    await retained.setOptions({ context: "1m", effort: "high" });
+    await retained.setOptions({ context: null });
+
+    expect(draft.agent().options).toEqual({ effort: "high" });
+    expect(draft.request()?.providerOptions).toEqual({ effort: "high" });
+
+    await retained.setOptions({ effort: null });
+
+    expect(draft.agent().options).toEqual({});
+    expect(draft.request()?.providerOptions).toBeUndefined();
+  });
+
+  it("rejects a provider the host cannot run and a model the catalog does not list", async () => {
+    const draft = openDraft(context);
+    const retained = draft.agent();
+
+    await expect(retained.setProvider("nope")).rejects.toThrow(
+      "Unknown or unavailable provider: nope",
+    );
+    expect(draft.agent().provider).toBe("claude");
+
+    await retained.setProvider("codex");
+    await expect(retained.setModel("missing")).rejects.toThrow("Unknown model: missing");
+    expect(draft.agent()).toMatchObject({ provider: "codex", model: "gpt-5.4" });
+  });
+
+  it("keeps a model id as given when the provider lists no catalog", async () => {
+    const draft = openDraft(context);
+    const retained = draft.agent();
+
+    await retained.setProvider("opencode");
+    await retained.setModel("anthropic/claude-x");
+
+    expect(draft.agent().model).toBe("anthropic/claude-x");
+  });
+});

packages/app/src/composer/draft/composer-agent.ts

@@ -0,0 +1,52 @@
+import type { ComposerAgent } from "@/composer/session";
+import type { DraftAgentControlsProps } from "@/composer/agent-controls";
+
+/**
+ * The agent a draft composer creates, as a plugin sees it. Its commands go to the form and the
+ * options model, which apply them as they run, so a plugin can `await` one and issue the next.
+ */
+export function draftComposerAgent(
+  props: Pick<
+    DraftAgentControlsProps,
+    | "context"
+    | "disabled"
+    | "selectedProvider"
+    | "selectedModel"
+    | "selectedMode"
+    | "options"
+    | "metadata"
+    | "onSelectProviderAndModel"
+    | "onSelectModel"
+    | "onSelectMode"
+    | "onSelectThinkingOption"
+    | "onSetOption"
+    | "onSetMetadata"
+  > & { thinking: string | null; isLocked: () => boolean },
+): ComposerAgent {
+  return {
+    context: props.context ?? "draft",
+    locked: props.disabled ?? false,
+    isLocked: props.isLocked,
+    provider: props.selectedProvider,
+    model: props.selectedModel || null,
+    mode: props.selectedMode || null,
+    thinking: props.thinking,
+    options: props.options,
+    metadata: props.metadata,
+    // An empty model id picks the provider's default model.
+    setProvider: async (provider) => {
+      if (!props.onSelectProviderAndModel(provider, "")) {
+        throw new Error(`Unknown or unavailable provider: ${provider}`);
+      }
+    },
+    setModel: async (modelId) => {
+      if (!props.onSelectModel(modelId)) throw new Error(`Unknown model: ${modelId}`);
+    },
+    setMode: async (modeId) => props.onSelectMode(modeId),
+    setThinking: async (thinkingOptionId) => props.onSelectThinkingOption(thinkingOptionId),
+    setOptions: async (patch) => {
+      for (const [key, value] of Object.entries(patch)) props.onSetOption(key, value);
+    },
+    setMetadata: async (patch) => props.onSetMetadata(patch),
+  };
+}

packages/app/src/composer/draft/input-draft-core.ts

@@ -1,3 +1,4 @@
+import type { JsonValue } from "@getpaseo/protocol/agent-types";
 import type { UserComposerAttachment } from "@/attachments/types";
 import type { DraftAgentControlsProps } from "@/composer/agent-controls";
 import type { UseAgentFormStateResult } from "@/hooks/use-agent-form-state";
@@ -20,12 +21,26 @@ export function resolveDraftKey(input: {
 
 export function buildDraftAgentControls(input: {
   formState: UseAgentFormStateResult;
-  features?: DraftAgentControlsProps["features"];
-  onSetFeature?: DraftAgentControlsProps["onSetFeature"];
+  optionControls?: DraftAgentControlsProps["optionControls"];
+  options: DraftAgentControlsProps["options"];
+  onSetOption: DraftAgentControlsProps["onSetOption"];
   onApplyAgentProfile: DraftAgentControlsProps["onApplyAgentProfile"];
   onDropdownClose?: DraftAgentControlsProps["onDropdownClose"];
+  context: NonNullable<DraftAgentControlsProps["context"]>;
+  metadata: Record<string, JsonValue>;
+  onSetMetadata: (patch: Record<string, JsonValue>) => void;
 }): DraftAgentControlsProps {
-  const { formState, features, onSetFeature, onApplyAgentProfile, onDropdownClose } = input;
+  const {
+    formState,
+    optionControls,
+    options,
+    onSetOption,
+    onApplyAgentProfile,
+    onDropdownClose,
+    context,
+    metadata,
+    onSetMetadata,
+  } = input;
   return {
     providerDefinitions: formState.providerDefinitions,
     selectedProvider: formState.selectedProvider,
@@ -43,13 +58,17 @@ export function buildDraftAgentControls(input: {
     selectedThinkingOptionId: formState.selectedThinkingOptionId,
     onSelectThinkingOption: formState.setThinkingOptionFromUser,
     onApplyAgentProfile,
-    features,
-    onSetFeature,
+    optionControls,
+    options,
+    onSetOption,
     onDropdownClose,
     onModelSelectorOpen: formState.refetchProviderModelsIfStale,
     onRetryModelProvider: formState.refreshProviderModels,
     isRetryingModelProvider: formState.isProviderModelsRefreshing,
     modelSelectorServerId: formState.selectedServerId,
+    context,
+    metadata,
+    onSetMetadata,
   };
 }
 

packages/app/src/composer/draft/input-draft.ts

@@ -1,4 +1,5 @@
 import { useCallback, useEffect, useMemo, useRef, useState } from "react";
+import type { JsonValue } from "@getpaseo/protocol/agent-types";
 import type { UserComposerAttachment } from "@/attachments/types";
 import type { TextReplacement } from "@/composer/types";
 import type { DraftAgentControlsProps } from "@/composer/agent-controls";
@@ -8,7 +9,7 @@ import {
   type CreateAgentInitialValues,
   type UseAgentFormStateResult,
 } from "@/hooks/use-agent-form-state";
-import { useDraftAgentFeatures } from "@/hooks/use-draft-agent-features";
+import { useDraftProviderOptions } from "@/hooks/use-draft-provider-options";
 import {
   buildDraftAgentControls,
   hasDraftContent,
@@ -28,6 +29,8 @@ import { useShallow } from "zustand/shallow";
 import type { ComposerTextSource } from "@/composer/text-source";
 import { isWeb } from "@/constants/platform";
 
+const NO_METADATA: Record<string, JsonValue> = {};
+
 type AttachmentUpdater =
   | UserComposerAttachment[]
   | ((prev: UserComposerAttachment[]) => UserComposerAttachment[]);
@@ -35,7 +38,9 @@ type AttachmentUpdater =
 interface AgentInputDraftComposerOptions {
   initialServerId: string | null;
   initialValues?: CreateAgentInitialValues;
-  initialFeatureValues?: Record<string, unknown>;
+  initialProviderOptions?: Record<string, unknown>;
+  /** Which composer a plugin's `useComposer()` reports. */
+  context?: "draft" | "new-workspace";
   isVisible?: boolean;
   lockedWorkingDir?: string;
 }
@@ -50,7 +55,9 @@ type DraftComposerState = UseAgentFormStateResult & {
   effectiveModeId: string;
   effectiveModelId: string;
   effectiveThinkingOptionId: string;
-  featureValues: Record<string, unknown> | undefined;
+  providerOptions: Record<string, unknown> | undefined;
+  /** What plugins set on the agent this draft creates. */
+  metadata: Record<string, JsonValue>;
   agentControls: DraftAgentControlsProps;
   commandDraft: DraftCommandTarget;
 };
@@ -191,10 +198,18 @@ export function useAgentInputDraft(input: UseAgentInputDraftInput): AgentInputDr
     [saveDraft],
   );
 
+  const metadata = useDraftStore((state) => state.metadataByDraftKey[draftKey] ?? NO_METADATA);
+  const setMetadata = useCallback(
+    (patch: Record<string, JsonValue>) =>
+      useDraftStore.getState().patchDraftMetadata({ draftKey, patch }),
+    [draftKey],
+  );
+
   const clear = useCallback(
     (lifecycle: "sent" | "abandoned") => {
       textPublication.cancel();
       useDraftStore.getState().clearDraftInput({ draftKey, lifecycle });
+      if (lifecycle === "sent") useDraftStore.getState().clearDraftMetadata({ draftKey });
     },
     [draftKey, textPublication],
   );
@@ -274,26 +289,28 @@ export function useAgentInputDraft(input: UseAgentInputDraftInput): AgentInputDr
   );
 
   const {
-    features: draftFeatures,
-    featureValues: draftFeatureValues,
-    setFeatureValue: setDraftFeatureValue,
-    applyProfileFeatureValues,
-  } = useDraftAgentFeatures({
+    optionControls: draftOptionControls,
+    options: draftOptions,
+    shownOptions: draftShownOptions,
+    setOption: setDraftOption,
+    applyProfile: applyProfileOptions,
+  } = useDraftProviderOptions({
     serverId: formState.selectedServerId,
     provider: formState.selectedProvider,
+    getProvider: formState.getSelectedProvider,
     cwd: workingDir,
     modeId: formState.selectedMode,
     modelId: effectiveModelId,
     thinkingOptionId: effectiveThinkingOptionId,
-    initialFeatureValues: composerOptions?.initialFeatureValues,
+    initialOptions: composerOptions?.initialProviderOptions,
   });
 
   const applyDraftAgentProfile = useCallback(
     (profile: Parameters<typeof formState.applyProfileFromUser>[0]) => {
       formState.applyProfileFromUser(profile);
-      applyProfileFeatureValues(profile.featureValues);
+      applyProfileOptions({ provider: profile.provider, options: profile.options });
     },
-    [applyProfileFeatureValues, formState],
+    [applyProfileOptions, formState],
   );
 
   const commandDraft = useMemo(
@@ -303,15 +320,9 @@ export function useAgentInputDraft(input: UseAgentInputDraftInput): AgentInputDr
         cwd: workingDir,
         effectiveModelId,
         effectiveThinkingOptionId,
-        featureValues: draftFeatureValues,
+        providerOptions: draftOptions,
       }),
-    [
-      effectiveModelId,
-      effectiveThinkingOptionId,
-      draftFeatureValues,
-      providerSelection,
-      workingDir,
-    ],
+    [effectiveModelId, effectiveThinkingOptionId, draftOptions, providerSelection, workingDir],
   );
 
   const composerState = useMemo<DraftComposerState | null>(() => {
@@ -325,12 +336,17 @@ export function useAgentInputDraft(input: UseAgentInputDraftInput): AgentInputDr
       effectiveModeId,
       effectiveModelId,
       effectiveThinkingOptionId,
-      featureValues: draftFeatureValues,
+      providerOptions: draftOptions,
+      metadata,
       agentControls: buildDraftAgentControls({
         formState,
-        features: draftFeatures,
-        onSetFeature: setDraftFeatureValue,
+        optionControls: draftOptionControls,
+        options: draftShownOptions,
+        onSetOption: setDraftOption,
         onApplyAgentProfile: applyDraftAgentProfile,
+        context: composerOptions.context ?? "draft",
+        metadata,
+        onSetMetadata: setMetadata,
       }),
       commandDraft,
     };
@@ -340,11 +356,14 @@ export function useAgentInputDraft(input: UseAgentInputDraftInput): AgentInputDr
     effectiveModeId,
     effectiveModelId,
     effectiveThinkingOptionId,
-    draftFeatures,
-    draftFeatureValues,
+    draftOptionControls,
+    draftOptions,
+    draftShownOptions,
+    setDraftOption,
     applyDraftAgentProfile,
     formState,
-    setDraftFeatureValue,
+    metadata,
+    setMetadata,
     workingDir,
   ]);
 

packages/app/src/composer/draft/metadata.test.ts

@@ -0,0 +1,19 @@
+import { describe, expect, it } from "vitest";
+import { applyMetadataPatch } from "./metadata";
+
+describe("applyMetadataPatch", () => {
+  it("replaces top-level keys and removes keys patched to null", () => {
+    expect(
+      applyMetadataPatch(
+        { "linear.issue": { id: "ENG-1" }, review: true },
+        { "linear.issue": { id: "ENG-2" }, review: null, extra: [1] },
+      ),
+    ).toEqual({ "linear.issue": { id: "ENG-2" }, extra: [1] });
+  });
+
+  it("leaves the current record untouched", () => {
+    const current = { review: true };
+    applyMetadataPatch(current, { review: null });
+    expect(current).toEqual({ review: true });
+  });
+});

packages/app/src/composer/draft/metadata.ts

@@ -0,0 +1,14 @@
+import type { JsonValue } from "@getpaseo/protocol/agent-types";
+
+/** Top-level keys replace; `null` removes the key. The daemon applies the same rule to an agent. */
+export function applyMetadataPatch(
+  current: Readonly<Record<string, JsonValue>>,
+  patch: Readonly<Record<string, JsonValue>>,
+): Record<string, JsonValue> {
+  const next = { ...current };
+  for (const [key, value] of Object.entries(patch)) {
+    if (value === null) delete next[key];
+    else next[key] = value;
+  }
+  return next;
+}

packages/app/src/composer/draft/workspace-tab.tsx

@@ -1,4 +1,6 @@
+import type { ComposerOptionControls } from "@/agent-controls/option-controls";
 import { useCallback, useEffect, useMemo, useRef } from "react";
+import type { JsonValue } from "@getpaseo/protocol/agent-types";
 import { Keyboard, ScrollView, StyleSheet as RNStyleSheet, Text, View } from "react-native";
 import { useTranslation } from "react-i18next";
 import { StyleSheet } from "react-native-unistyles";
@@ -65,7 +67,7 @@ interface AutoSubmitConfig {
   modeId: string | null;
   model: string | null;
   thinkingOptionId: string | null;
-  featureValues: Record<string, unknown>;
+  providerOptions: Record<string, unknown>;
 }
 
 function resolveAutoSubmitConfig(
@@ -74,7 +76,7 @@ function resolveAutoSubmitConfig(
     modeId?: string | null;
     model?: string | null;
     thinkingOptionId?: string | null;
-    featureValues?: Record<string, unknown>;
+    providerOptions?: Record<string, unknown>;
   } | null,
 ): AutoSubmitConfig | null {
   if (!pending) return null;
@@ -83,7 +85,7 @@ function resolveAutoSubmitConfig(
     modeId: pending.modeId ?? null,
     model: pending.model ?? null,
     thinkingOptionId: pending.thinkingOptionId ?? null,
-    featureValues: pending.featureValues ?? {},
+    providerOptions: pending.providerOptions ?? {},
   };
 }
 
@@ -131,7 +133,8 @@ async function submitDraftCreateRequest(input: {
     effectiveModeId: string;
     effectiveModelId: string | null;
     effectiveThinkingOptionId: string | null;
-    featureValues: Record<string, unknown> | undefined;
+    providerOptions: Record<string, unknown> | undefined;
+    metadata: Record<string, JsonValue>;
   };
   hostDisconnectedMessage: string;
   selectModelMessage: string;
@@ -170,7 +173,7 @@ async function submitDraftCreateRequest(input: {
     model: autoSubmitConfig?.model ?? (composerState.effectiveModelId || undefined),
     thinkingOptionId:
       autoSubmitConfig?.thinkingOptionId ?? (composerState.effectiveThinkingOptionId || undefined),
-    featureValues: autoSubmitConfig?.featureValues ?? composerState.featureValues,
+    providerOptions: autoSubmitConfig?.providerOptions ?? composerState.providerOptions,
   });
 
   const attachmentsArray = Array.isArray(attachments) ? attachments : undefined;
@@ -181,6 +184,7 @@ async function submitDraftCreateRequest(input: {
     workspaceId,
     initialPrompt: text,
     clientMessageId: attempt.clientMessageId,
+    ...(Object.keys(composerState.metadata).length > 0 ? { metadata: composerState.metadata } : {}),
     ...(imagesData && imagesData.length > 0 ? { images: imagesData } : {}),
     ...(attachmentsArray && attachmentsArray.length > 0 ? { attachments: attachmentsArray } : {}),
   };
@@ -204,7 +208,7 @@ function buildDraftAgentSnapshot(input: {
     effectiveThinkingOptionId: string | null;
     effectiveModeId: string;
     selectedProvider: string | null;
-    agentControls: { features?: Agent["features"] };
+    agentControls: { optionControls?: ComposerOptionControls };
   };
   selectModelMessage: string;
 }): Agent {
@@ -241,7 +245,8 @@ function buildDraftAgentSnapshot(input: {
     title: "Agent",
     cwd: workspaceDirectory,
     model,
-    features: composerState.agentControls.features,
+    options: composerState.agentControls.optionControls?.options,
+    controls: composerState.agentControls.optionControls?.controls,
     thinkingOptionId,
     parentAgentId: null,
     labels: {},
@@ -333,7 +338,7 @@ export function WorkspaceDraftAgentTab({
     composer: {
       initialServerId: serverId,
       initialValues: draftInitialValues,
-      initialFeatureValues: draftSetup?.featureValues,
+      initialProviderOptions: draftSetup?.providerOptions,
       isVisible: true,
       lockedWorkingDir: draftWorkingDirectory ?? undefined,
     },
@@ -351,8 +356,7 @@ export function WorkspaceDraftAgentTab({
   const draftModeOptions = composerState.modeOptions;
   const draftSelectedMode = composerState.selectedMode;
   const draftSetMode = composerState.setModeFromUser;
-  const draftFeatures = composerState.agentControls.features;
-  const draftOnSetFeature = composerState.agentControls.onSetFeature;
+  const draftOptionControls = composerState.agentControls.optionControls;
 
   const clearDraftInput = draftInput.clear;
   const replaceDraftText = draftInput.replaceText;
@@ -509,7 +513,9 @@ export function WorkspaceDraftAgentTab({
         providers: composerState.modelSelectorProviders,
         selectedProvider: draftProvider,
         selectedModelId: composerState.effectiveModelId,
-        select: composerState.setProviderAndModelFromUser,
+        select: (provider, modelId) => {
+          composerState.setProviderAndModelFromUser(provider, modelId);
+        },
       },
       thinking: {
         options: draftThinkingOptions,
@@ -521,10 +527,7 @@ export function WorkspaceDraftAgentTab({
         selectedId: draftSelectedMode,
         select: draftSetMode,
       },
-      features: {
-        list: draftFeatures,
-        set: draftOnSetFeature,
-      },
+      optionControls: draftOptionControls ?? null,
     },
   });
   const isReadyForPendingAutoSubmit = Boolean(

packages/app/src/composer/index.tsx

@@ -139,6 +139,8 @@ import type {
 } from "@/attachments/types";
 import type { SelectedFile } from "@/attachments/selected-file";
 import { resolveComposerAttachmentSubmitFormat } from "@/composer/attachments/submit";
+import { ComposerInputProvider, type ComposerInput } from "@/composer/session";
+import { insertAtSelection } from "@/composer/insert-text";
 import { composerWorkspaceAttachment } from "@/composer/attachments/workspace";
 import { useWorkspaceAttachmentsForScopes } from "@/attachments/workspace-attachments-store";
 import { droppedItemsToSelectedFiles } from "@/composer/attachments/drop";
@@ -1419,6 +1421,40 @@ function ComposerContentImpl({
     [onChangeText],
   );
 
+  const insertUserInput = useCallback(
+    (text: string) => {
+      const input = messageInputRef.current;
+      if (!input) {
+        onChangeText(textSource.getSnapshot() + text);
+        return;
+      }
+      const inserted = insertAtSelection(input.getInputSnapshot(), text);
+      input.replaceText(inserted.text, inserted.selection);
+    },
+    [onChangeText, textSource],
+  );
+  const isComposerLockedRef = useRef(isComposerLocked);
+  isComposerLockedRef.current = isComposerLocked;
+  const composerInput = useMemo<ComposerInput>(
+    () => ({
+      locked: isComposerLocked,
+      isLocked: () => isComposerLockedRef.current,
+      textSource,
+      setText: replaceUserInput,
+      insertText: insertUserInput,
+      attachments,
+      changeAttachments: setSelectedAttachments,
+    }),
+    [
+      attachments,
+      insertUserInput,
+      isComposerLocked,
+      replaceUserInput,
+      setSelectedAttachments,
+      textSource,
+    ],
+  );
+
   const runClientSlashCommand = useCallback(
     (command: ClientSlashCommand): boolean => {
       if (command.execution !== "immediate" || !onClientSlashCommand) {
@@ -2223,18 +2259,27 @@ function ComposerContentImpl({
     [attachments, setSelectedAttachments, setGithubSearchQuery, setIsGithubPickerOpen],
   );
 
-  const leftContent = useMemo(
-    () =>
-      renderLeftContent({
-        agentControls,
-        agentId,
-        serverId,
-        focusInput,
-        isCompactLayout,
-        showAgentControls: mode.showAgentControls,
-      }),
-    [agentControls, agentId, focusInput, isCompactLayout, mode.showAgentControls, serverId],
-  );
+  const leftContent = useMemo(() => {
+    const controls = renderLeftContent({
+      agentControls,
+      agentId,
+      serverId,
+      focusInput,
+      isCompactLayout,
+      showAgentControls: mode.showAgentControls,
+    });
+    return controls ? (
+      <ComposerInputProvider value={composerInput}>{controls}</ComposerInputProvider>
+    ) : null;
+  }, [
+    agentControls,
+    agentId,
+    composerInput,
+    focusInput,
+    isCompactLayout,
+    mode.showAgentControls,
+    serverId,
+  ]);
 
   const handleAttachButtonRef = useCallback((node: View | null) => {
     attachButtonRef.current = node;

packages/app/src/composer/insert-text.test.ts

@@ -0,0 +1,18 @@
+import { describe, expect, it } from "vitest";
+import { insertAtSelection } from "./insert-text";
+
+describe("insertAtSelection", () => {
+  it("inserts at the caret and moves the caret after the insertion", () => {
+    expect(insertAtSelection({ text: "ab", selection: { start: 1, end: 1 } }, "XY")).toEqual({
+      text: "aXYb",
+      selection: { start: 3, end: 3 },
+    });
+  });
+
+  it("replaces the selection, however it was dragged", () => {
+    expect(insertAtSelection({ text: "abcd", selection: { start: 3, end: 1 } }, "-")).toEqual({
+      text: "a-d",
+      selection: { start: 2, end: 2 },
+    });
+  });
+});

packages/app/src/composer/insert-text.ts

@@ -0,0 +1,15 @@
+import type { ComposerInputSnapshot } from "@/composer/input/input";
+
+/** The text with `inserted` in place of the selection, and the caret after it. */
+export function insertAtSelection(
+  { text, selection }: ComposerInputSnapshot,
+  inserted: string,
+): ComposerInputSnapshot {
+  const start = Math.min(selection.start, selection.end);
+  const end = Math.max(selection.start, selection.end);
+  const caret = start + inserted.length;
+  return {
+    text: text.slice(0, start) + inserted + text.slice(end),
+    selection: { start: caret, end: caret },
+  };
+}

packages/app/src/composer/session.tsx

@@ -0,0 +1,89 @@
+import { createContext, useContext, type ReactNode } from "react";
+import type { JsonValue, ProviderOptions } from "@getpaseo/protocol/agent-types";
+import type { UserComposerAttachment } from "@/attachments/types";
+import type { ComposerTextSource } from "@/composer/text-source";
+
+/**
+ * The text and attachments of the composer a control sits in. `Composer` provides it, so a
+ * control reaches the prompt without knowing which screen mounted the composer.
+ */
+export interface ComposerInput {
+  /** The prompt is held while the composer submits; the built-in input is read-only meanwhile. */
+  locked: boolean;
+  /** `locked` as it is now. A command a plugin kept from an earlier render asks this. */
+  isLocked: () => boolean;
+  textSource: ComposerTextSource;
+  setText: (text: string) => void;
+  /** Inserts at the cursor, replacing the selection. */
+  insertText: (text: string) => void;
+  attachments: readonly UserComposerAttachment[];
+  changeAttachments: (
+    updater: (current: UserComposerAttachment[]) => UserComposerAttachment[],
+  ) => void;
+}
+
+/**
+ * The agent a composer configures, as one set of reads and commands. A running agent sends each
+ * command to the daemon; a draft keeps it locally until the agent is created. Controls call the
+ * same command either way.
+ */
+export interface ComposerAgent {
+  context: "agent" | "draft" | "new-workspace";
+  /** The agent is being created; the built-in controls are disabled meanwhile. */
+  locked: boolean;
+  /** `locked` as it is now. A command a plugin kept from an earlier render asks this. */
+  isLocked: () => boolean;
+  provider: string | null;
+  model: string | null;
+  mode: string | null;
+  thinking: string | null;
+  /** The options the agent runs with, defaults included. */
+  options: ProviderOptions;
+  metadata: Record<string, JsonValue>;
+  setProvider: (provider: string) => Promise<void>;
+  setModel: (modelId: string) => Promise<void>;
+  setMode: (modeId: string) => Promise<void>;
+  setThinking: (thinkingOptionId: string) => Promise<void>;
+  /** Top-level keys replace; `null` removes the agent's own value. */
+  setOptions: (patch: ProviderOptions) => Promise<void>;
+  /** Top-level keys replace; `null` removes the key. */
+  setMetadata: (patch: Record<string, JsonValue>) => Promise<void>;
+}
+
+const ComposerInputContext = createContext<ComposerInput | null>(null);
+const ComposerAgentContext = createContext<ComposerAgent | null>(null);
+
+export function ComposerInputProvider({
+  value,
+  children,
+}: {
+  value: ComposerInput;
+  children: ReactNode;
+}) {
+  return <ComposerInputContext.Provider value={value}>{children}</ComposerInputContext.Provider>;
+}
+
+export function ComposerAgentProvider({
+  value,
+  children,
+}: {
+  value: ComposerAgent | null;
+  children: ReactNode;
+}) {
+  return <ComposerAgentContext.Provider value={value}>{children}</ComposerAgentContext.Provider>;
+}
+
+export function useComposerInput(): ComposerInput | null {
+  return useContext(ComposerInputContext);
+}
+
+export function useComposerAgent(): ComposerAgent | null {
+  return useContext(ComposerAgentContext);
+}
+
+/** True while the composer holds its prompt or its agent's settings for a submit in flight. */
+export function useComposerLocked(): boolean {
+  const input = useComposerInput();
+  const agent = useComposerAgent();
+  return Boolean(input?.locked || agent?.locked);
+}

packages/app/src/create-agent-preferences/preferences.test.ts

@@ -80,7 +80,7 @@ describe("create agent preferences", () => {
         modelId: "gpt-5.5",
         modeId: "full-access",
         thinkingOptionId: "high",
-        featureValues: { fast_mode: true },
+        options: { fast_mode: true },
       }),
     );
 
@@ -95,7 +95,7 @@ describe("create agent preferences", () => {
           model: "gpt-5.5",
           mode: "full-access",
           thinkingByModel: { "gpt-5.5": "high" },
-          featureValues: { fast_mode: true },
+          options: { fast_mode: true },
         },
       },
     });
@@ -119,7 +119,7 @@ describe("create agent preferences", () => {
           model: "gpt-5.6",
           mode: undefined,
           thinkingByModel: undefined,
-          featureValues: undefined,
+          options: undefined,
         },
       }),
     ).toEqual({
@@ -167,13 +167,13 @@ describe("create agent preferences", () => {
         modelId: "one-minute-stream",
         modeId: "approval-test",
         thinkingOptionId: "",
-        featureValues: {},
+        options: {},
       }),
     ).toEqual({
       provider: "mock",
       providerPreferences: {
         pi: { model: "anthropic/sonnet" },
-        mock: { model: "one-minute-stream", mode: "approval-test", featureValues: {} },
+        mock: { model: "one-minute-stream", mode: "approval-test", options: {} },
       },
     });
   });
@@ -208,6 +208,29 @@ describe("create agent preferences", () => {
     });
   });
 
+  it("reads preferences saved as featureValues as options", () => {
+    expect(
+      parseFormPreferences({
+        provider: "codex",
+        providerPreferences: { codex: { featureValues: { service_tier: "priority" } } },
+      }),
+    ).toEqual({
+      provider: "codex",
+      providerPreferences: { codex: { options: { service_tier: "priority" } } },
+    });
+  });
+
+  it("keeps options that are not booleans or strings, such as a profile's sandbox settings", () => {
+    const options = {
+      sandbox_workspace_write: { network_access: true, writable_roots: ["/tmp"] },
+      max_turns: 3,
+    };
+
+    expect(
+      parseFormPreferences({ provider: "codex", providerPreferences: { codex: { options } } }),
+    ).toEqual({ provider: "codex", providerPreferences: { codex: { options } } });
+  });
+
   it("rejects unknown persisted fields outside the explicit legacy shape", () => {
     expect(parseFormPreferences({ provider: "codex", surprise: true })).toEqual({});
   });

packages/app/src/create-agent-preferences/preferences.ts

@@ -1,13 +1,14 @@
 import { z } from "zod";
 import type { AgentProvider } from "@getpaseo/protocol/agent-types";
 
-const featureValuesSchema = z.record(z.string(), z.union([z.boolean(), z.string(), z.null()]));
+const optionsSchema = z.record(z.string(), z.json());
 
 export interface ProviderPreferences {
   model?: string;
   mode?: string;
   thinkingByModel?: Record<string, string>;
-  featureValues?: Record<string, unknown>;
+  /** Last-used values of the provider's option controls, by option key. */
+  options?: Record<string, unknown>;
 }
 
 export type LaunchTarget = { kind: "chat" } | { kind: "terminal"; profileId: string };
@@ -20,12 +21,23 @@ export interface FormPreferences {
   launchTarget?: LaunchTarget;
 }
 
-const providerPreferencesSchema: z.ZodType<ProviderPreferences> = z.strictObject({
-  model: z.string().optional(),
-  mode: z.string().optional(),
-  thinkingByModel: z.record(z.string(), z.string()).optional(),
-  featureValues: featureValuesSchema.optional(),
-});
+// COMPAT(providerOptionControls): added in v0.15.0, remove after 2027-05-01. Preferences written
+// before the rename stored the same record as `featureValues`.
+function renameLegacyFeatureValues(value: unknown): unknown {
+  if (typeof value !== "object" || value === null || !("featureValues" in value)) return value;
+  const { featureValues, ...rest } = value as { featureValues: unknown } & Record<string, unknown>;
+  return "options" in rest ? rest : { ...rest, options: featureValues };
+}
+
+const providerPreferencesSchema: z.ZodType<ProviderPreferences> = z.preprocess(
+  renameLegacyFeatureValues,
+  z.strictObject({
+    model: z.string().optional(),
+    mode: z.string().optional(),
+    thinkingByModel: z.record(z.string(), z.string()).optional(),
+    options: optionsSchema.optional(),
+  }),
+);
 
 const launchTargetSchema: z.ZodType<LaunchTarget> = z.discriminatedUnion("kind", [
   z.strictObject({ kind: z.literal("chat") }),
@@ -116,7 +128,7 @@ function applyProviderPreferenceUpdates(
 ): ProviderPreferences {
   const next: ProviderPreferences = { ...existing };
   const nextThinkingByModel = mergeDefinedRecord(existing.thinkingByModel, updates.thinkingByModel);
-  const nextFeatureValues = mergeDefinedRecord(existing.featureValues, updates.featureValues);
+  const nextOptions = mergeDefinedRecord(existing.options, updates.options);
 
   if (updates.model !== undefined) {
     next.model = updates.model;
@@ -129,8 +141,8 @@ function applyProviderPreferenceUpdates(
   if (nextThinkingByModel !== undefined) {
     next.thinkingByModel = nextThinkingByModel;
   }
-  if (nextFeatureValues !== undefined) {
-    next.featureValues = nextFeatureValues;
+  if (nextOptions !== undefined) {
+    next.options = nextOptions;
   }
 
   return next;
@@ -161,7 +173,7 @@ export function mergeCreateAgentSelectionPreferences(args: {
   modelId?: string | null;
   modeId?: string | null;
   thinkingOptionId?: string | null;
-  featureValues?: Record<string, unknown>;
+  options?: Record<string, unknown>;
 }): FormPreferences {
   if (!args.provider) {
     return args.preferences;
@@ -170,7 +182,7 @@ export function mergeCreateAgentSelectionPreferences(args: {
   const modelId = args.modelId?.trim() ?? "";
   const modeId = args.modeId?.trim() ?? "";
   const thinkingOptionId = args.thinkingOptionId?.trim() ?? "";
-  const featureValues = featureValuesSchema.safeParse(args.featureValues);
+  const options = optionsSchema.safeParse(args.options);
 
   return mergeProviderPreferences({
     preferences: args.preferences,
@@ -179,7 +191,7 @@ export function mergeCreateAgentSelectionPreferences(args: {
       model: modelId || undefined,
       mode: args.modeId === undefined ? undefined : modeId || null,
       ...(modelId && thinkingOptionId ? { thinkingByModel: { [modelId]: thinkingOptionId } } : {}),
-      ...(featureValues.success ? { featureValues: featureValues.data } : {}),
+      ...(options.success ? { options: options.data } : {}),
     },
   });
 }
@@ -192,7 +204,7 @@ export function applyAgentProfilePreferences(args: {
   modelId: string;
   modeId: string;
   thinkingOptionId: string;
-  featureValues: Record<string, unknown>;
+  options: Record<string, unknown>;
 }): FormPreferences {
   let next = args.preferences;
   if (args.previousProvider) {
@@ -215,7 +227,7 @@ export function applyAgentProfilePreferences(args: {
       ...(args.modelId && args.thinkingOptionId
         ? { thinkingByModel: { [args.modelId]: args.thinkingOptionId } }
         : {}),
-      featureValues: args.featureValues,
+      options: args.options,
     },
   });
 }

packages/app/src/hooks/feature-preferences.test.ts

@@ -1,53 +0,0 @@
-import { describe, expect, it } from "vitest";
-
-import { resolveFeatureValues } from "./feature-preferences";
-
-describe("feature-preferences", () => {
-  const features = [
-    {
-      type: "toggle" as const,
-      id: "fast_mode",
-      label: "Fast",
-      value: false,
-    },
-    {
-      type: "toggle" as const,
-      id: "plan_mode",
-      label: "Plan",
-      value: false,
-    },
-  ];
-
-  it("restores persisted values for available features", () => {
-    expect(
-      resolveFeatureValues({
-        features,
-        persistedFeatureValues: {
-          fast_mode: true,
-          unknown_feature: true,
-        },
-        localFeatureValues: {},
-      }),
-    ).toEqual({
-      fast_mode: true,
-    });
-  });
-
-  it("prefers local values over persisted values", () => {
-    expect(
-      resolveFeatureValues({
-        features,
-        persistedFeatureValues: {
-          fast_mode: true,
-          plan_mode: false,
-        },
-        localFeatureValues: {
-          fast_mode: false,
-        },
-      }),
-    ).toEqual({
-      fast_mode: false,
-      plan_mode: false,
-    });
-  });
-});

packages/app/src/hooks/feature-preferences.ts

@@ -1,60 +0,0 @@
-import type { AgentFeature } from "@getpaseo/protocol/agent-types";
-
-export function pruneFeatureValues(
-  featureValues: Record<string, unknown>,
-  features: AgentFeature[],
-): Record<string, unknown> {
-  const allowedFeatureIds = new Set(features.map((feature) => feature.id));
-  let changed = false;
-  const next: Record<string, unknown> = {};
-
-  for (const [featureId, value] of Object.entries(featureValues)) {
-    if (!allowedFeatureIds.has(featureId)) {
-      changed = true;
-      continue;
-    }
-    next[featureId] = value;
-  }
-
-  return changed ? next : featureValues;
-}
-
-export function applyFeatureValues(
-  features: AgentFeature[],
-  featureValues: Record<string, unknown>,
-): AgentFeature[] {
-  if (Object.keys(featureValues).length === 0) {
-    return features;
-  }
-
-  return features.map((feature) => {
-    if (!Object.prototype.hasOwnProperty.call(featureValues, feature.id)) {
-      return feature;
-    }
-
-    return {
-      ...feature,
-      value: featureValues[feature.id],
-    } as AgentFeature;
-  });
-}
-
-export function resolveFeatureValues(args: {
-  features: AgentFeature[];
-  persistedFeatureValues: Record<string, unknown>;
-  localFeatureValues: Record<string, unknown>;
-}): Record<string, unknown> {
-  const next: Record<string, unknown> = {};
-
-  for (const feature of args.features) {
-    if (Object.prototype.hasOwnProperty.call(args.localFeatureValues, feature.id)) {
-      next[feature.id] = args.localFeatureValues[feature.id];
-      continue;
-    }
-    if (Object.prototype.hasOwnProperty.call(args.persistedFeatureValues, feature.id)) {
-      next[feature.id] = args.persistedFeatureValues[feature.id];
-    }
-  }
-
-  return next;
-}

packages/app/src/hooks/use-agent-autocomplete.ts

@@ -128,14 +128,14 @@ function resolveDraftQueryConfig(draft?: DraftCommandTarget): DraftCommandConfig
   const modeId = draftConfig.modeId?.trim() ?? "";
   const model = draftConfig.model?.trim() ?? "";
   const thinkingOptionId = draftConfig.thinkingOptionId?.trim() ?? "";
-  const featureValues = draftConfig.featureValues;
+  const providerOptions = draftConfig.providerOptions;
   return {
     provider: draftConfig.provider,
     cwd,
     ...(modeId ? { modeId } : {}),
     ...(model ? { model } : {}),
     ...(thinkingOptionId ? { thinkingOptionId } : {}),
-    ...(featureValues && Object.keys(featureValues).length > 0 ? { featureValues } : {}),
+    ...(providerOptions && Object.keys(providerOptions).length > 0 ? { providerOptions } : {}),
   };
 }
 

packages/app/src/hooks/use-agent-form-state.ts

@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useMemo, useReducer, useRef } from "react";
+import { useCallback, useEffect, useMemo, useRef, useState, useSyncExternalStore } from "react";
 import type { AgentProviderDefinition } from "@getpaseo/protocol/provider-manifest";
 import type {
   AgentMode,
@@ -28,14 +28,13 @@ import {
   mergeSelectedComposerPreferences,
   buildProviderDefinitionMap,
   buildProviderDefinitionMapForStatuses,
-  INITIAL_AGENT_FORM_RESOLUTION,
-  INITIAL_USER_MODIFIED,
   RESOLVABLE_PROVIDER_STATUSES,
   SELECTABLE_PROVIDER_STATUSES,
   type FormInitialValues,
   type FormState,
   type ProviderModelsByProvider,
 } from "@/provider-selection/resolve-agent-form";
+import { openAgentForm, type AgentFormCatalog } from "@/provider-selection/agent-form-store";
 import { useHostRuntimeIsConnected } from "@/runtime/host-runtime";
 import type { MaterializedAgentProfile } from "@/agent-profiles";
 
@@ -52,10 +51,13 @@ export interface UseAgentFormStateOptions {
 export interface UseAgentFormStateResult {
   selectedServerId: string | null;
   selectedProvider: AgentProvider | null;
+  /** The provider as it is now, which a render may not have reached yet. */
+  getSelectedProvider: () => AgentProvider | null;
   selectedMode: string;
   setModeFromUser: (modeId: string) => void;
   selectedModel: string;
-  setModelFromUser: (modelId: string) => void;
+  /** `false` when the provider's loaded catalog does not list the model. */
+  setModelFromUser: (modelId: string) => boolean;
   selectedThinkingOptionId: string;
   setThinkingOptionFromUser: (thinkingOptionId: string) => void;
   workingDir: string;
@@ -74,13 +76,20 @@ export interface UseAgentFormStateResult {
   modelError: string | null;
   refreshProviderModels: (provider?: AgentProvider) => void;
   refetchProviderModelsIfStale: () => void;
-  setProviderAndModelFromUser: (provider: AgentProvider, modelId: string) => void;
+  /** `false` when the provider is unknown or not ready. */
+  setProviderAndModelFromUser: (provider: AgentProvider, modelId: string) => boolean;
   applyProfileFromUser: (profile: MaterializedAgentProfile) => void;
   clearProviderSelectionFromUser: () => void;
   workingDirIsEmpty: boolean;
   persistFormPreferences: () => Promise<void>;
 }
 
+const EMPTY_CATALOG: AgentFormCatalog = {
+  selectableProviders: new Map(),
+  models: new Map(),
+  providerPreferences: () => undefined,
+};
+
 function resolveSelectedProviderModes(input: {
   selectedEntry: ProviderSnapshotEntry | null;
   provider: AgentProvider | null;
@@ -172,11 +181,15 @@ export function useAgentFormState(options: UseAgentFormStateOptions): UseAgentFo
     [updatePreferences],
   );
 
-  const [{ form: formState, userModified, resolution }, dispatch] = useReducer(resolveAgentForm, {
-    form: { provider: null, modeId: "", model: "", thinkingOptionId: "" },
-    userModified: INITIAL_USER_MODIFIED,
-    resolution: INITIAL_AGENT_FORM_RESOLUTION,
-  });
+  // The store reads what the host offers when a command runs; each render publishes the latest.
+  const catalogRef = useRef<AgentFormCatalog>(EMPTY_CATALOG);
+  const [formStore] = useState(() => openAgentForm(() => catalogRef.current));
+  const { form: formState, resolution } = useSyncExternalStore(
+    formStore.subscribe,
+    formStore.getState,
+    formStore.getState,
+  );
+  const dispatch = formStore.dispatch;
 
   const {
     entries: snapshotEntries,
@@ -246,6 +259,12 @@ export function useAgentFormState(options: UseAgentFormStateOptions): UseAgentFo
   const providerDefinitionMap = snapshotProviderDefinitionMap;
   const selectableProviderDefinitionMap = snapshotSelectableProviderDefinitionMap;
   const allProviderModels = snapshotAllProviderModels;
+  catalogRef.current = {
+    selectableProviders: selectableProviderDefinitionMap,
+    models: allProviderModels,
+    providerPreferences: (provider) =>
+      preferenceOverlayRef.current.current().providerPreferences?.[provider],
+  };
   const modelSelectorProviders = snapshotModelSelectorProviders;
   const availableModels = snapshotSelectedProviderModels;
   const modeOptions = snapshotSelectedProviderModes;
@@ -277,27 +296,15 @@ export function useAgentFormState(options: UseAgentFormStateOptions): UseAgentFo
     preferences,
     snapshotProviderModelsByProvider,
     snapshotResolvableProviderDefinitionMap,
+    dispatch,
   ]);
 
   const setProviderAndModelFromUser = useCallback(
-    (provider: AgentProvider, modelId: string) => {
-      if (!selectableProviderDefinitionMap.has(provider)) {
-        return;
-      }
-      const providerDef = selectableProviderDefinitionMap.get(provider);
+    (provider: AgentProvider, modelId: string): boolean => {
+      if (!formStore.setProviderAndModel(provider, modelId)) return false;
       const providerModels = allProviderModels.get(provider) ?? null;
-      const providerPrefs = preferenceOverlayRef.current.current().providerPreferences?.[provider];
-      const normalizedModelId = normalizeSelectedModelId(modelId);
-      const nextModelId = normalizedModelId || resolveDefaultModelId(providerModels);
-
-      dispatch({
-        type: "SET_PROVIDER_AND_MODEL_FROM_USER",
-        provider,
-        modelId,
-        providerDef,
-        providerModels,
-        providerPrefs,
-      });
+      const nextModelId =
+        normalizeSelectedModelId(modelId) || resolveDefaultModelId(providerModels);
       void updateCurrentPreferences((current) =>
         mergeSelectedComposerPreferences({
           preferences: current,
@@ -307,13 +314,14 @@ export function useAgentFormState(options: UseAgentFormStateOptions): UseAgentFo
           },
         }),
       );
+      return true;
     },
-    [allProviderModels, selectableProviderDefinitionMap, updateCurrentPreferences],
+    [allProviderModels, formStore, updateCurrentPreferences],
   );
 
   const clearProviderSelectionFromUser = useCallback(() => {
     dispatch({ type: "CLEAR_PROVIDER_SELECTION_FROM_USER" });
-  }, []);
+  }, [dispatch]);
 
   const applyProfileFromUser = useCallback(
     (profile: MaterializedAgentProfile) => {
@@ -322,7 +330,8 @@ export function useAgentFormState(options: UseAgentFormStateOptions): UseAgentFo
         return;
       }
 
-      const previousProvider = formState.provider;
+      const formBefore = formStore.getState();
+      const previousProvider = formBefore.form.provider;
       const providerDef = selectableProviderDefinitionMap.get(provider);
       const providerModels = allProviderModels.get(provider) ?? null;
       const providerPrefs = preferenceOverlayRef.current.current().providerPreferences?.[provider];
@@ -336,7 +345,7 @@ export function useAgentFormState(options: UseAgentFormStateOptions): UseAgentFo
         providerModels,
         providerPrefs,
       };
-      const nextState = resolveAgentForm({ form: formState, userModified, resolution }, action);
+      const nextState = resolveAgentForm(formBefore, action);
       const previousProviderModeIds = previousProvider
         ? (providerDefinitionMap.get(previousProvider)?.modes.map((mode) => mode.id) ?? [])
         : [];
@@ -352,7 +361,7 @@ export function useAgentFormState(options: UseAgentFormStateOptions): UseAgentFo
           modelId: model,
           modeId,
           thinkingOptionId,
-          featureValues: profile.featureValues,
+          options: profile.options,
         });
       }).catch((error) => {
         console.warn("[useAgentFormState] persist profile preference failed", error);
@@ -360,19 +369,18 @@ export function useAgentFormState(options: UseAgentFormStateOptions): UseAgentFo
     },
     [
       allProviderModels,
-      formState,
+      dispatch,
+      formStore,
       providerDefinitionMap,
-      resolution,
       selectableProviderDefinitionMap,
       updateCurrentPreferences,
-      userModified,
     ],
   );
 
   const setModeFromUser = useCallback(
     (modeId: string) => {
       dispatch({ type: "SET_MODE_FROM_USER", modeId });
-      const provider = formState.provider;
+      const { provider } = formStore.getState().form;
       if (provider) {
         void updateCurrentPreferences((current) =>
           mergeSelectedComposerPreferences({
@@ -385,24 +393,18 @@ export function useAgentFormState(options: UseAgentFormStateOptions): UseAgentFo
         );
       }
     },
-    [formState.provider, updateCurrentPreferences],
+    [dispatch, formStore, updateCurrentPreferences],
   );
 
   const setModelFromUser = useCallback(
-    (modelId: string) => {
-      const provider = formState.provider;
-      const providerPrefs = provider
-        ? preferenceOverlayRef.current.current().providerPreferences?.[provider]
-        : undefined;
-      dispatch({
-        type: "SET_MODEL_FROM_USER",
-        modelId,
-        availableModels,
-        providerPrefs,
-      });
+    (modelId: string): boolean => {
+      if (!formStore.setModel(modelId)) return false;
+      const { provider } = formStore.getState().form;
       if (provider) {
-        const normalizedModelId = normalizeSelectedModelId(modelId);
-        const nextModelId = normalizedModelId || resolveDefaultModelId(availableModels);
+        const listed = allProviderModels.get(provider);
+        const nextModelId =
+          normalizeSelectedModelId(modelId) ||
+          resolveDefaultModelId(listed?.length ? listed : null);
         void updateCurrentPreferences((current) =>
           mergeSelectedComposerPreferences({
             preferences: current,
@@ -413,14 +415,15 @@ export function useAgentFormState(options: UseAgentFormStateOptions): UseAgentFo
           }),
         );
       }
+      return true;
     },
-    [availableModels, formState.provider, updateCurrentPreferences],
+    [allProviderModels, formStore, updateCurrentPreferences],
   );
 
   const setThinkingOptionFromUser = useCallback(
     (thinkingOptionId: string) => {
       dispatch({ type: "SET_THINKING_OPTION_FROM_USER", thinkingOptionId });
-      const { provider, model: modelId } = formState;
+      const { provider, model: modelId } = formStore.getState().form;
       if (provider && modelId) {
         void updateCurrentPreferences((current) =>
           mergeSelectedComposerPreferences({
@@ -435,9 +438,11 @@ export function useAgentFormState(options: UseAgentFormStateOptions): UseAgentFo
         );
       }
     },
-    [formState, updateCurrentPreferences],
+    [dispatch, formStore, updateCurrentPreferences],
   );
 
+  const getSelectedProvider = useCallback(() => formStore.getState().form.provider, [formStore]);
+
   const refreshProviderModels = useCallback(
     (provider?: AgentProvider) => {
       void refreshSnapshot(provider ? [provider] : undefined);
@@ -479,6 +484,7 @@ export function useAgentFormState(options: UseAgentFormStateOptions): UseAgentFo
     () => ({
       selectedServerId: serverId,
       selectedProvider: formState.provider,
+      getSelectedProvider,
       selectedMode: formState.modeId,
       setModeFromUser,
       selectedModel: formState.model,
@@ -509,6 +515,7 @@ export function useAgentFormState(options: UseAgentFormStateOptions): UseAgentFo
     }),
     [
       serverId,
+      getSelectedProvider,
       formState.provider,
       formState.modeId,
       formState.model,

packages/app/src/hooks/use-agent-screen-state-machine.ts

@@ -1,9 +1,6 @@
 import { useRef } from "react";
-import type {
-  AgentCapabilityFlags,
-  AgentFeature,
-  AgentProvider,
-} from "@getpaseo/protocol/agent-types";
+import type { AgentCapabilityFlags, AgentProvider } from "@getpaseo/protocol/agent-types";
+import type { Agent } from "@/stores/session-store";
 import type { ViewedTimelineStatus } from "@/timeline/viewed-timeline-sync";
 
 export interface AgentScreenAgent {
@@ -22,7 +19,8 @@ export interface AgentScreenAgent {
     modeId?: string | null;
     thinkingOptionId?: string | null;
   } | null;
-  features?: readonly AgentFeature[];
+  options?: Agent["options"];
+  controls?: Agent["controls"];
   lastError?: string | null;
   projectPlacement?: {
     projectKey?: string;

packages/app/src/hooks/use-draft-agent-features.ts

@@ -1,159 +0,0 @@
-import { useCallback, useEffect, useMemo, useRef, useState } from "react";
-import { useQuery } from "@tanstack/react-query";
-import { useTranslation } from "react-i18next";
-import type { AgentProvider, AgentSessionConfig } from "@getpaseo/protocol/agent-types";
-import { useHostRuntimeClient, useHostRuntimeIsConnected } from "@/runtime/host-runtime";
-import { mergeProviderPreferences, useFormPreferences } from "./use-form-preferences";
-import {
-  applyFeatureValues,
-  pruneFeatureValues,
-  resolveFeatureValues,
-} from "./feature-preferences";
-
-type DraftFeatureConfig = Pick<
-  AgentSessionConfig,
-  "provider" | "cwd" | "modeId" | "model" | "thinkingOptionId"
->;
-
-export function useDraftAgentFeatures(input: {
-  serverId: string | null | undefined;
-  provider: AgentProvider | null;
-  cwd: string | null | undefined;
-  modeId: string | null | undefined;
-  modelId: string | null | undefined;
-  thinkingOptionId: string | null | undefined;
-  initialFeatureValues?: Record<string, unknown>;
-}) {
-  const { t } = useTranslation();
-  const { serverId, provider, cwd, modeId, modelId, thinkingOptionId, initialFeatureValues } =
-    input;
-  const [localFeatureValues, setLocalFeatureValues] = useState<Record<string, unknown>>(
-    () => initialFeatureValues ?? {},
-  );
-  const client = useHostRuntimeClient(serverId ?? "");
-  const isConnected = useHostRuntimeIsConnected(serverId ?? "");
-  const { preferences, updatePreferences } = useFormPreferences();
-  const normalizedCwd = cwd?.trim() || "";
-  const normalizedProvider = provider ?? null;
-  const previousProviderRef = useRef<AgentProvider | null>(normalizedProvider);
-  const persistedFeatureValues = useMemo(
-    () => (provider ? (preferences.providerPreferences?.[provider]?.featureValues ?? {}) : {}),
-    [preferences.providerPreferences, provider],
-  );
-
-  const draftConfig = useMemo<DraftFeatureConfig | null>(() => {
-    if (!normalizedProvider || !normalizedCwd) {
-      return null;
-    }
-
-    return {
-      provider: normalizedProvider,
-      cwd: normalizedCwd,
-      ...(modeId ? { modeId } : {}),
-      ...(modelId ? { model: modelId } : {}),
-      ...(thinkingOptionId ? { thinkingOptionId } : {}),
-    };
-  }, [modeId, modelId, normalizedCwd, normalizedProvider, thinkingOptionId]);
-
-  const featuresQuery = useQuery({
-    queryKey: [
-      "providerFeatures",
-      serverId ?? null,
-      normalizedProvider,
-      normalizedCwd || null,
-      modeId ?? null,
-      modelId ?? null,
-      thinkingOptionId ?? null,
-    ],
-    enabled: Boolean(serverId && client && isConnected && draftConfig),
-    staleTime: 5 * 60 * 1000,
-    queryFn: async () => {
-      if (!client || !draftConfig) {
-        throw new Error(t("workspace.terminal.hostDisconnected"));
-      }
-      const payload = await client.listProviderFeatures(draftConfig);
-      if (payload.error) {
-        throw new Error(payload.error);
-      }
-      return payload.features ?? [];
-    },
-  });
-  const availableFeaturesRaw = featuresQuery.data;
-  const availableFeatures = useMemo(() => availableFeaturesRaw ?? [], [availableFeaturesRaw]);
-  const featureValues = useMemo(
-    () =>
-      resolveFeatureValues({
-        features: availableFeatures,
-        persistedFeatureValues,
-        localFeatureValues,
-      }),
-    [availableFeatures, localFeatureValues, persistedFeatureValues],
-  );
-
-  const features = useMemo(() => {
-    return applyFeatureValues(availableFeatures, featureValues);
-  }, [availableFeatures, featureValues]);
-
-  useEffect(() => {
-    const previousProvider = previousProviderRef.current;
-    previousProviderRef.current = normalizedProvider;
-    if (previousProvider === null) {
-      return;
-    }
-    if (previousProvider !== normalizedProvider) {
-      setLocalFeatureValues({});
-    }
-  }, [normalizedProvider]);
-
-  useEffect(() => {
-    if (availableFeaturesRaw === undefined) {
-      return;
-    }
-    const next = pruneFeatureValues(localFeatureValues, availableFeatures);
-    if (next !== localFeatureValues) {
-      setLocalFeatureValues(next);
-    }
-  }, [availableFeatures, availableFeaturesRaw, localFeatureValues]);
-
-  const effectiveFeatureValues = Object.keys(featureValues).length > 0 ? featureValues : undefined;
-  const setFeatureValue = useCallback(
-    (featureId: string, value: unknown) => {
-      setLocalFeatureValues((current) => {
-        if (Object.is(current[featureId], value)) {
-          return current;
-        }
-
-        return { ...current, [featureId]: value };
-      });
-      if (!provider) {
-        return;
-      }
-      void updatePreferences((current) =>
-        mergeProviderPreferences({
-          preferences: current,
-          provider,
-          updates: {
-            featureValues: {
-              [featureId]: value,
-            },
-          },
-        }),
-      ).catch((error) => {
-        console.warn("[useDraftAgentFeatures] persist feature preference failed", error);
-      });
-    },
-    [provider, updatePreferences],
-  );
-
-  const applyProfileFeatureValues = useCallback((values: Record<string, unknown>) => {
-    setLocalFeatureValues(values);
-  }, []);
-
-  return {
-    features,
-    featureValues: effectiveFeatureValues,
-    isLoading: featuresQuery.isLoading,
-    setFeatureValue,
-    applyProfileFeatureValues,
-  };
-}

packages/app/src/hooks/use-draft-provider-options.ts

@@ -0,0 +1,134 @@
+import { useCallback, useEffect, useMemo, useState, useSyncExternalStore } from "react";
+import { useTranslation } from "react-i18next";
+import type { AgentProvider, ProviderOptions } from "@getpaseo/protocol/agent-types";
+import {
+  draftControlsRequest,
+  openDraftOptions,
+  ownDraftOptions,
+  shownDraftOptions,
+  viewDraftOptions,
+} from "@/agent-controls/draft-options-model";
+import type { ComposerOptionControls } from "@/agent-controls/option-controls";
+import { useFetchQuery } from "@/data/query";
+import { useHostRuntimeClient, useHostRuntimeIsConnected } from "@/runtime/host-runtime";
+import { mergeProviderPreferences, useFormPreferences } from "./use-form-preferences";
+
+/**
+ * Adapter between a draft's options model and the screen: it sends the model's complete options
+ * to the daemon, hands the answer back, and persists the user's toggles as last-used values.
+ */
+export function useDraftProviderOptions(input: {
+  serverId: string | null | undefined;
+  provider: AgentProvider | null;
+  /** The form's provider as it is now, which a render may not have reached yet. */
+  getProvider: () => AgentProvider | null;
+  cwd: string | null | undefined;
+  modeId: string | null | undefined;
+  modelId: string | null | undefined;
+  thinkingOptionId: string | null | undefined;
+  initialOptions?: ProviderOptions;
+}) {
+  const { t } = useTranslation();
+  const {
+    serverId,
+    provider,
+    getProvider,
+    cwd,
+    modeId,
+    modelId,
+    thinkingOptionId,
+    initialOptions,
+  } = input;
+  const [model] = useState(() =>
+    openDraftOptions({ provider, seed: initialOptions, currentProvider: getProvider }),
+  );
+  const state = useSyncExternalStore(model.subscribe, model.getState, model.getState);
+  const client = useHostRuntimeClient(serverId ?? "");
+  const isConnected = useHostRuntimeIsConnected(serverId ?? "");
+  const { preferences, updatePreferences } = useFormPreferences();
+  const normalizedCwd = cwd?.trim() || "";
+  const persisted = preferences.providerPreferences?.[provider ?? ""]?.options;
+
+  useEffect(() => model.observeProvider(provider), [model, provider]);
+  useEffect(() => model.setRemembered(persisted ?? {}), [model, persisted]);
+
+  const ownOptions = ownDraftOptions(state);
+  const draftConfig = useMemo(
+    () =>
+      draftControlsRequest(state, {
+        provider,
+        cwd: normalizedCwd,
+        modeId,
+        modelId,
+        thinkingOptionId,
+      }),
+    [modeId, modelId, normalizedCwd, provider, state, thinkingOptionId],
+  );
+  const queryKey = useMemo(
+    () => ["providerControls", serverId ?? null, draftConfig],
+    [draftConfig, serverId],
+  );
+  const requestKey = JSON.stringify(queryKey);
+
+  const { data } = useFetchQuery({
+    queryKey,
+    dataShape: "value",
+    staleTimeMs: 5 * 60 * 1000,
+    enabled: Boolean(serverId && client && isConnected && draftConfig),
+    queryFn: async () => {
+      if (!client || !draftConfig) {
+        throw new Error(t("workspace.terminal.hostDisconnected"));
+      }
+      const payload = await client.listProviderControls(draftConfig);
+      if (payload.error) {
+        throw new Error(payload.error);
+      }
+      return { controls: payload.controls ?? [], options: payload.options ?? {} };
+    },
+  });
+
+  useEffect(() => {
+    if (provider && data) model.applyResolved({ provider, requestKey, ...data });
+  }, [data, model, provider, requestKey]);
+
+  // An edit belongs to the provider the form has now, even before the render that shows it.
+  const setOption = useCallback(
+    (key: string, value: unknown) => {
+      model.setOption(key, value);
+      const current = getProvider();
+      if (!current) return;
+      void updatePreferences((stored) =>
+        mergeProviderPreferences({
+          preferences: stored,
+          provider: current,
+          updates: { options: { [key]: value } },
+        }),
+      ).catch((error) => {
+        console.warn("[useDraftProviderOptions] persist option preference failed", error);
+      });
+    },
+    [getProvider, model, updatePreferences],
+  );
+
+  const view = viewDraftOptions(state, { provider, requestKey });
+  const viewControls = view?.controls;
+  const viewOptions = view?.options;
+  const optionControls = useMemo<ComposerOptionControls | undefined>(
+    () =>
+      viewControls && viewOptions
+        ? { controls: viewControls, options: viewOptions, onSetOption: setOption }
+        : undefined,
+    [setOption, viewControls, viewOptions],
+  );
+
+  // What the draft will create with, the plugin's own edits included, before the daemon answers.
+  const shownOptions = shownDraftOptions(state, { provider, requestKey });
+
+  return {
+    optionControls,
+    options: ownOptions,
+    shownOptions,
+    setOption,
+    applyProfile: model.applyProfile,
+  };
+}

packages/app/src/hooks/use-fork-agent.ts

@@ -36,7 +36,7 @@ export type ForkAgentSource = Pick<
   | "model"
   | "thinkingOptionId"
   | "runtimeInfo"
-  | "features"
+  | "options"
   | "projectPlacement"
 >;
 
@@ -95,18 +95,13 @@ function buildForkDraftSetup(agent: ForkAgentSource): WorkspaceDraftTabSetup | u
     return undefined;
   }
 
-  const featureValues: Record<string, unknown> = {};
-  for (const feature of agent.features ?? []) {
-    featureValues[feature.id] = feature.value;
-  }
-
   return {
     provider: agent.provider,
     cwd: agent.cwd,
     modeId: agent.currentModeId ?? agent.runtimeInfo?.modeId ?? null,
     model: agent.model ?? agent.runtimeInfo?.model ?? null,
     thinkingOptionId: agent.thinkingOptionId ?? agent.runtimeInfo?.thinkingOptionId ?? null,
-    featureValues,
+    providerOptions: { ...agent.options },
   };
 }
 

packages/app/src/hooks/use-form-preferences.test.ts

@@ -63,7 +63,7 @@ describe("mergeProviderPreferences", () => {
           providerPreferences: {
             codex: {
               model: "gpt-5.4",
-              featureValues: {
+              options: {
                 fast_mode: true,
               },
             },
@@ -71,7 +71,7 @@ describe("mergeProviderPreferences", () => {
         },
         provider: "codex",
         updates: {
-          featureValues: {
+          options: {
             plan_mode: true,
           },
         },
@@ -81,7 +81,7 @@ describe("mergeProviderPreferences", () => {
       providerPreferences: {
         codex: {
           model: "gpt-5.4",
-          featureValues: {
+          options: {
             fast_mode: true,
             plan_mode: true,
           },

packages/app/src/panels/agent-panel.tsx

@@ -118,7 +118,8 @@ interface ChatAgentStateShape {
   model?: Agent["model"];
   thinkingOptionId?: Agent["thinkingOptionId"];
   runtimeInfo?: Agent["runtimeInfo"];
-  features?: Agent["features"];
+  options?: Agent["options"];
+  controls?: Agent["controls"];
   lastError?: Agent["lastError"] | null;
 }
 
@@ -177,7 +178,8 @@ function selectChatAgentState(
     model: agent.model,
     thinkingOptionId: agent.thinkingOptionId,
     runtimeInfo: agent.runtimeInfo,
-    features: agent.features,
+    options: agent.options,
+    controls: agent.controls,
     lastError: agent.lastError ?? null,
     archivedAt: agent.archivedAt ?? null,
     requiresAttention: agent.requiresAttention ?? false,
@@ -204,7 +206,8 @@ function buildChatAgentFromState(
     model: state.model,
     thinkingOptionId: state.thinkingOptionId,
     runtimeInfo: state.runtimeInfo,
-    features: state.features,
+    options: state.options,
+    controls: state.controls,
     lastError: state.lastError ?? null,
     projectPlacement,
   };
@@ -637,7 +640,8 @@ function AgentPanelBody({
           model: agentState.model,
           thinkingOptionId: agentState.thinkingOptionId,
           runtimeInfo: agentState.runtimeInfo,
-          features: agentState.features,
+          options: agentState.options,
+          controls: agentState.controls,
           lastError: agentState.lastError ?? null,
           projectPlacement,
         }

packages/app/src/plugins/buttons/model.test.ts

@@ -23,6 +23,7 @@ function installation(): InstalledPlugin {
     sidebarItems: { header: [], footer: [] },
     legacySidebarItems: [],
     filePanels: [],
+    composerItems: [],
     workspacePanels: [],
     commandCenterItems: [],
     clientSlashCommands: [],

packages/app/src/plugins/client-state/snapshots.test.ts

@@ -53,6 +53,7 @@ const agent: Agent = {
   attentionReason: "permission",
   parentAgentId: null,
   labels: { phase: "implementation" },
+  metadata: { "linear.issue": { id: "ENG-1" } },
 };
 
 describe("plugin context snapshots", () => {
@@ -107,12 +108,16 @@ describe("plugin context snapshots", () => {
       attentionReason: "permission",
       parentAgentId: null,
       labels: { phase: "implementation" },
+      metadata: { "linear.issue": { id: "ENG-1" } },
     });
     expect(snapshot.labels).not.toBe(agent.labels);
     expect(Object.isFrozen(snapshot)).toBe(true);
     expect(Object.isFrozen(snapshot.labels)).toBe(true);
     expect(Reflect.set(snapshot, "title", "Hostile rename")).toBe(false);
     expect(Reflect.set(snapshot.labels, "phase", "hostile")).toBe(false);
+    const issue = snapshot.metadata["linear.issue"] as { id: string };
+    expect(Reflect.set(issue, "id", "hostile")).toBe(false);
+    expect(agent.metadata?.["linear.issue"]).toEqual({ id: "ENG-1" });
     expect(snapshot.title).toBe("Implement plugin panels");
     expect(snapshot.labels).toEqual({ phase: "implementation" });
     expect(agent.title).toBe("Implement plugin panels");

packages/app/src/plugins/client-state/snapshots.ts

@@ -1,5 +1,6 @@
 import type { PluginAgentSnapshot, PluginWorkspaceSnapshot } from "@getpaseo/plugin";
 import type { Agent, WorkspaceDescriptor } from "@/stores/session-store";
+import { cloneAndFreeze } from "../freeze";
 
 const workspaceSnapshots = new WeakMap<WorkspaceDescriptor, PluginWorkspaceSnapshot>();
 const agentSnapshots = new WeakMap<Agent, Map<string, PluginAgentSnapshot>>();
@@ -49,6 +50,7 @@ export function createPluginAgentSnapshot(agent: Agent, workspaceId: string): Pl
     attentionReason: agent.attentionReason ?? null,
     parentAgentId: agent.parentAgentId,
     labels: Object.freeze({ ...agent.labels }),
+    metadata: cloneAndFreeze(agent.metadata ?? {}),
   });
   const byWorkspace = agentSnapshots.get(agent) ?? new Map<string, PluginAgentSnapshot>();
   byWorkspace.set(workspaceId, snapshot);

packages/app/src/plugins/command-center/contributions.test.ts

@@ -46,6 +46,7 @@ const agent: PluginAgentSnapshot = {
   attentionReason: null,
   parentAgentId: null,
   labels: {},
+  metadata: {},
 };
 
 const inspect = defineRpc({
@@ -82,6 +83,7 @@ function plugin(onAgentSelect: AgentCommandItem["onSelect"]): InstalledPlugin {
     sidebarItems: { header: [], footer: [] },
     legacySidebarItems: [],
     filePanels: [],
+    composerItems: [],
     workspacePanels: [
       {
         id: "details",

packages/app/src/plugins/composer-items/index.tsx

@@ -0,0 +1,138 @@
+import { useMemo, useSyncExternalStore } from "react";
+import type { PluginHostProps } from "@getpaseo/plugin/client";
+import { PluginComposerProvider } from "@getpaseo/plugin/client/host";
+import { withUnistyles } from "react-native-unistyles";
+import {
+  ComposerControlSurfaceProvider,
+  type ComposerControlSurface,
+} from "@/composer/agent-controls/composer-control";
+import { useComposerAgent, useComposerInput } from "@/composer/session";
+import { useIsCompactFormFactor } from "@/constants/layout";
+import { useToast } from "@/contexts/toast-api-context";
+import { useHosts } from "@/runtime/host-runtime";
+import type { Theme } from "@/styles/theme";
+import { createPluginClientStateSource } from "../client-state/source";
+import { resolvePluginPlatform } from "../platform";
+import { PluginEnvironmentProvider, type PluginEnvironment } from "../popover";
+import { useInstalledPlugins } from "../registry";
+import { SurfaceErrorBoundary } from "../surface-error-boundary";
+import { toPluginTheme } from "../theme";
+import type { InstalledPlugin } from "../types";
+import { toPluginComposer } from "./model";
+
+const pluginThemeMapping = (theme: Theme) => ({ theme: toPluginTheme(theme) });
+
+function renderNothing() {
+  return null;
+}
+
+function useServerPlugins(serverId: string | null): InstalledPlugin[] {
+  const installed = useInstalledPlugins();
+  return useMemo(
+    () =>
+      serverId === null
+        ? []
+        : installed.filter(
+            (plugin) => plugin.serverId === serverId && plugin.composerItems.length > 0,
+          ),
+    [installed, serverId],
+  );
+}
+
+/** How many composer items the host's plugins registered; the toolbar budgets room for them. */
+export function usePluginComposerItemCount(serverId: string | null): number {
+  const plugins = useServerPlugins(serverId);
+  return plugins.reduce((count, plugin) => count + plugin.composerItems.length, 0);
+}
+
+/**
+ * The host's plugin composer items. They read and command the composer they are mounted in, so
+ * they render only where a composer provides its input and agent.
+ */
+export function PluginComposerItems({
+  serverId,
+  surface,
+}: {
+  serverId: string | null;
+  surface: ComposerControlSurface;
+}) {
+  const plugins = useServerPlugins(serverId);
+  if (serverId === null || plugins.length === 0) return null;
+  return (
+    <ComposerControlSurfaceProvider value={surface}>
+      {plugins.map((plugin) => (
+        <ThemedPluginComposerItems key={plugin.id} plugin={plugin} uniProps={pluginThemeMapping} />
+      ))}
+    </ComposerControlSurfaceProvider>
+  );
+}
+
+function PluginComposerItemsHost({
+  plugin,
+  theme,
+}: {
+  plugin: InstalledPlugin;
+  theme: PluginHostProps["theme"];
+}) {
+  const agent = useComposerAgent();
+  const composerInput = useComposerInput();
+  const toast = useToast();
+  const compact = useIsCompactFormFactor();
+  const hosts = useHosts();
+  const hostLabel =
+    hosts.find((host) => host.serverId === plugin.serverId)?.label ?? plugin.serverId;
+  const textSource = composerInput?.textSource;
+  const prompt = useSyncExternalStore(
+    textSource?.subscribe ?? subscribeNothing,
+    textSource?.getSnapshot ?? emptyText,
+    textSource?.getSnapshot ?? emptyText,
+  );
+  const environment = useMemo<PluginEnvironment>(
+    () => ({
+      installation: plugin,
+      toast,
+      state: createPluginClientStateSource(plugin.serverId),
+    }),
+    [plugin, toast],
+  );
+  const composer = useMemo(
+    () =>
+      agent && composerInput ? toPluginComposer({ plugin, agent, composerInput, prompt }) : null,
+    [agent, composerInput, plugin, prompt],
+  );
+  const props = useMemo<PluginHostProps>(
+    () => ({
+      theme,
+      host: { id: plugin.serverId, label: hostLabel },
+      layout: { compact, platform: resolvePluginPlatform() },
+    }),
+    [compact, hostLabel, plugin.serverId, theme],
+  );
+  if (!composer) return null;
+  return (
+    <PluginEnvironmentProvider environment={environment}>
+      <PluginComposerProvider composer={composer}>
+        {plugin.composerItems.map(({ id, Component }) => (
+          <SurfaceErrorBoundary
+            key={id}
+            installation={plugin}
+            Surface={Component}
+            renderError={renderNothing}
+          >
+            <Component {...props} />
+          </SurfaceErrorBoundary>
+        ))}
+      </PluginComposerProvider>
+    </PluginEnvironmentProvider>
+  );
+}
+
+const ThemedPluginComposerItems = withUnistyles(PluginComposerItemsHost);
+
+function subscribeNothing() {
+  return () => undefined;
+}
+
+function emptyText() {
+  return "";
+}

packages/app/src/plugins/composer-items/model.test.ts

@@ -0,0 +1,311 @@
+import { defineRpc } from "@getpaseo/plugin";
+import { PluginTranslationRuntime } from "@getpaseo/plugin/client/host";
+import { QueryClient } from "@tanstack/react-query";
+import type { JsonValue } from "@getpaseo/protocol/agent-types";
+import { z } from "zod";
+import { describe, expect, it } from "vitest";
+import type { UserComposerAttachment } from "@/attachments/types";
+import type { ComposerAgent, ComposerInput } from "@/composer/session";
+import type { InstalledPlugin } from "../types";
+import { toPluginComposer } from "./model";
+
+function installed(): InstalledPlugin {
+  return {
+    id: "review",
+    serverId: "host-1",
+    clientBundle: "bundle",
+    lifetime: new AbortController(),
+    locale: "en",
+    i18n: new PluginTranslationRuntime({ getLocale: () => "en", subscribe: () => () => {} }),
+    queryClient: new QueryClient(),
+    paseo: {} as InstalledPlugin["paseo"],
+    invoke: async () => undefined,
+    cleanup: () => {},
+    settingsScreens: [],
+    surfaces: [],
+    sidebarItems: { header: [], footer: [] },
+    legacySidebarItems: [],
+    filePanels: [],
+    composerItems: [],
+    workspacePanels: [],
+    commandCenterItems: [],
+    clientSlashCommands: [],
+    attachmentSources: [
+      {
+        id: "issues",
+        title: "Issues",
+        pickerTitle: "Issues",
+        searchPlaceholder: "Search issues",
+        icon: "Bug",
+        search: defineRpc({
+          name: "issues.search",
+          input: z.object({}),
+          output: z.array(z.object({})),
+        }),
+      },
+    ],
+    themes: [],
+    timelineTransformers: [],
+    timelineRenderers: [],
+  };
+}
+
+const issue = {
+  id: "ISS-1",
+  identifier: "ISS-1",
+  title: "Fix it",
+  url: "https://example.com/ISS-1",
+  text: "Fix it",
+  resourceType: "issue",
+};
+
+function fakeAgent(context: ComposerAgent["context"], locked = false) {
+  const calls: string[] = [];
+  const agent: ComposerAgent = {
+    context,
+    locked,
+    isLocked: () => locked,
+    provider: "claude",
+    model: "sonnet",
+    mode: "default",
+    thinking: null,
+    options: { effort: "high" },
+    metadata: { flag: true },
+    // A running agent keeps its provider, as the real adapter does.
+    setProvider: async (provider) => {
+      if (context === "agent") throw new Error("A running agent cannot change provider.");
+      calls.push(`provider:${provider}`);
+    },
+    setModel: async (model) => void calls.push(`model:${model}`),
+    setMode: async (mode) => void calls.push(`mode:${mode}`),
+    setThinking: async (thinking) => void calls.push(`thinking:${thinking}`),
+    setOptions: async (patch) => void calls.push(`options:${JSON.stringify(patch)}`),
+    setMetadata: async (patch: Record<string, JsonValue>) =>
+      void calls.push(`metadata:${JSON.stringify(patch)}`),
+  };
+  return { agent, calls };
+}
+
+function fakeInput(initial: UserComposerAttachment[] = [], locked = false) {
+  const state = { text: "", attachments: initial };
+  const input: ComposerInput = {
+    locked,
+    isLocked: () => locked,
+    textSource: { getSnapshot: () => state.text, subscribe: () => () => {} },
+    setText: (text) => {
+      state.text = text;
+    },
+    insertText: (text) => {
+      state.text += text;
+    },
+    get attachments() {
+      return state.attachments;
+    },
+    changeAttachments: (updater) => {
+      state.attachments = updater(state.attachments);
+    },
+  };
+  return { input, state };
+}
+
+describe("toPluginComposer", () => {
+  it("reads the agent the composer configures and the context it sits in", () => {
+    const { agent } = fakeAgent("new-workspace");
+    const { input } = fakeInput();
+    const composer = toPluginComposer({
+      plugin: installed(),
+      agent,
+      composerInput: input,
+      prompt: "hello",
+    });
+    expect(composer.context).toBe("new-workspace");
+    expect(composer.prompt).toBe("hello");
+    expect(composer.agent).toEqual({
+      provider: "claude",
+      model: "sonnet",
+      mode: "default",
+      thinking: null,
+      options: { effort: "high" },
+      metadata: { flag: true },
+    });
+  });
+
+  it.each(["agent", "draft"] as const)(
+    "sends every command to the %s composer's agent",
+    async (context) => {
+      const { agent, calls } = fakeAgent(context);
+      const { input } = fakeInput();
+      const composer = toPluginComposer({
+        plugin: installed(),
+        agent,
+        composerInput: input,
+        prompt: "",
+      });
+      await composer.setModel("gpt");
+      await composer.setMode("plan");
+      await composer.setThinking("high");
+      await composer.setOptions({ effort: "low" });
+      await composer.setMetadata({ flag: null });
+      expect(calls).toEqual([
+        "model:gpt",
+        "mode:plan",
+        "thinking:high",
+        'options:{"effort":"low"}',
+        'metadata:{"flag":null}',
+      ]);
+    },
+  );
+
+  it("lets a draft change provider and tells a running agent it cannot", async () => {
+    const { input } = fakeInput();
+    const draft = fakeAgent("draft");
+    await toPluginComposer({
+      plugin: installed(),
+      agent: draft.agent,
+      composerInput: input,
+      prompt: "",
+    }).setProvider("codex");
+    expect(draft.calls).toEqual(["provider:codex"]);
+
+    const running = fakeAgent("agent");
+    await expect(
+      toPluginComposer({
+        plugin: installed(),
+        agent: running.agent,
+        composerInput: input,
+        prompt: "",
+      }).setProvider("codex"),
+    ).rejects.toThrow("A running agent cannot change provider.");
+    expect(running.calls).toEqual([]);
+  });
+
+  it("changes the prompt and inserts at the cursor", () => {
+    const { agent } = fakeAgent("draft");
+    const { input, state } = fakeInput();
+    const composer = toPluginComposer({
+      plugin: installed(),
+      agent,
+      composerInput: input,
+      prompt: "",
+    });
+    composer.setPrompt("a");
+    composer.insertText("b");
+    expect(state.text).toBe("ab");
+  });
+
+  it("refuses every prompt and agent command while the composer is locked", async () => {
+    const { agent, calls } = fakeAgent("new-workspace", true);
+    const { input, state } = fakeInput([], true);
+    const composer = toPluginComposer({
+      plugin: installed(),
+      agent,
+      composerInput: input,
+      prompt: "",
+    });
+
+    expect(() => composer.setPrompt("a")).toThrow("The composer is locked");
+    expect(() => composer.insertText("b")).toThrow("The composer is locked");
+    expect(() => composer.addAttachment({ sourceId: "issues", item: issue })).toThrow(
+      "The composer is locked",
+    );
+    await expect(composer.setProvider("codex")).rejects.toThrow("The composer is locked");
+    await expect(composer.setModel("gpt")).rejects.toThrow("The composer is locked");
+    await expect(composer.setMode("plan")).rejects.toThrow("The composer is locked");
+    await expect(composer.setThinking("high")).rejects.toThrow("The composer is locked");
+    await expect(composer.setOptions({ effort: "low" })).rejects.toThrow("The composer is locked");
+    await expect(composer.setMetadata({ flag: null })).rejects.toThrow("The composer is locked");
+    expect(state.text).toBe("");
+    expect(calls).toEqual([]);
+  });
+
+  it("refuses a command a plugin kept from before the composer locked", async () => {
+    const { agent } = fakeAgent("new-workspace");
+    const { input } = fakeInput();
+    const composer = toPluginComposer({
+      plugin: installed(),
+      agent,
+      composerInput: input,
+      prompt: "",
+    });
+
+    // The plugin's action was awaiting an RPC when the user submitted.
+    const lock = { locked: true };
+    agent.isLocked = () => lock.locked;
+    input.isLocked = () => lock.locked;
+
+    expect(() => composer.insertText("late")).toThrow("The composer is locked");
+    expect(() => composer.addAttachment({ sourceId: "issues", item: issue })).toThrow(
+      "The composer is locked",
+    );
+    expect(() => composer.removeAttachment({ sourceId: "issues", itemId: issue.id })).toThrow(
+      "The composer is locked",
+    );
+    await expect(composer.setOptions({ effort: "low" })).rejects.toThrow("The composer is locked");
+  });
+
+  it("hands out options and metadata a plugin cannot change", () => {
+    const { agent } = fakeAgent("draft");
+    agent.metadata = { nested: { list: [1] } };
+    const { input } = fakeInput();
+    const composer = toPluginComposer({
+      plugin: installed(),
+      agent,
+      composerInput: input,
+      prompt: "",
+    });
+
+    expect(Object.isFrozen(composer.agent.options)).toBe(true);
+    expect(Object.isFrozen(composer.agent.metadata)).toBe(true);
+    expect(Object.isFrozen((composer.agent.metadata as { nested: object }).nested)).toBe(true);
+    expect(agent.metadata).toEqual({ nested: { list: [1] } });
+    expect(Object.isFrozen(agent.metadata)).toBe(false);
+  });
+
+  it("adds and removes the plugin's own attachments only", () => {
+    const { agent } = fakeAgent("agent");
+    const other: UserComposerAttachment = {
+      kind: "plugin_resource",
+      pluginId: "other",
+      sourceId: "issues",
+      sourceTitle: "Issues",
+      sourceIcon: "Bug",
+      item: issue,
+    };
+    const { input, state } = fakeInput([other]);
+    const composer = toPluginComposer({
+      plugin: installed(),
+      agent,
+      composerInput: input,
+      prompt: "",
+    });
+
+    composer.addAttachment({ sourceId: "issues", item: issue });
+    composer.addAttachment({ sourceId: "issues", item: issue });
+    expect(state.attachments).toHaveLength(2);
+
+    const next = toPluginComposer({
+      plugin: installed(),
+      agent,
+      composerInput: input,
+      prompt: "",
+    });
+    expect(next.attachments).toEqual([{ sourceId: "issues", item: issue }]);
+
+    composer.removeAttachment({ sourceId: "issues", itemId: "ISS-1" });
+    expect(state.attachments).toEqual([other]);
+  });
+
+  it("rejects an attachment from a source the plugin did not register", () => {
+    const { agent } = fakeAgent("agent");
+    const { input } = fakeInput();
+    const composer = toPluginComposer({
+      plugin: installed(),
+      agent,
+      composerInput: input,
+      prompt: "",
+    });
+    expect(() => composer.addAttachment({ sourceId: "nope", item: issue })).toThrow(
+      "Unknown attachment source: nope",
+    );
+  });
+});

packages/app/src/plugins/composer-items/model.ts

@@ -0,0 +1,103 @@
+import type { JsonValue } from "@getpaseo/protocol/agent-types";
+import type { PluginComposer } from "@getpaseo/plugin/client";
+import type { UserComposerAttachment } from "@/attachments/types";
+import type { ComposerAgent, ComposerInput } from "@/composer/session";
+import type { InstalledPlugin } from "../types";
+import { createPluginResourceAttachment } from "../attachments/model";
+import { cloneAndFreeze } from "../freeze";
+
+function isPluginAttachment(
+  attachment: UserComposerAttachment,
+  pluginId: string,
+  sourceId: string,
+  itemId?: string,
+): boolean {
+  return (
+    attachment.kind === "plugin_resource" &&
+    attachment.pluginId === pluginId &&
+    attachment.sourceId === sourceId &&
+    (itemId === undefined || attachment.item.id === itemId)
+  );
+}
+
+const LOCKED_MESSAGE = "The composer is locked while the agent is being created.";
+
+function assertUnlocked(isLocked: () => boolean): void {
+  if (isLocked()) throw new Error(LOCKED_MESSAGE);
+}
+
+async function whenUnlocked(agent: ComposerAgent, command: () => Promise<void>): Promise<void> {
+  assertUnlocked(agent.isLocked);
+  await command();
+}
+
+/**
+ * What a plugin sees of the composer it sits in. `agent` and `input` are the composer's own
+ * halves, so the plugin's commands reach the same models the built-in controls use.
+ */
+export function toPluginComposer(input: {
+  plugin: InstalledPlugin;
+  agent: ComposerAgent;
+  composerInput: ComposerInput;
+  prompt: string;
+}): PluginComposer {
+  const { plugin, agent, composerInput, prompt } = input;
+  return {
+    context: agent.context,
+    prompt,
+    attachments: composerInput.attachments.flatMap((attachment) =>
+      attachment.kind === "plugin_resource" && attachment.pluginId === plugin.id
+        ? [{ sourceId: attachment.sourceId, item: attachment.item }]
+        : [],
+    ),
+    // Provider options are JSON on the wire.
+    agent: {
+      provider: agent.provider,
+      model: agent.model,
+      mode: agent.mode,
+      thinking: agent.thinking,
+      options: cloneAndFreeze(agent.options as Record<string, JsonValue>),
+      metadata: cloneAndFreeze(agent.metadata),
+    },
+    setPrompt: (text) => {
+      assertUnlocked(composerInput.isLocked);
+      composerInput.setText(text);
+    },
+    insertText: (text) => {
+      assertUnlocked(composerInput.isLocked);
+      composerInput.insertText(text);
+    },
+    addAttachment({ sourceId, item }) {
+      assertUnlocked(composerInput.isLocked);
+      const source = plugin.attachmentSources.find((candidate) => candidate.id === sourceId);
+      if (!source) throw new Error(`Unknown attachment source: ${sourceId}`);
+      const attachment = createPluginResourceAttachment(
+        {
+          pluginId: plugin.id,
+          sourceId,
+          sourceTitle: plugin.i18n.resolve(source.title, plugin.locale),
+          sourceIcon: source.icon,
+        },
+        item,
+      );
+      composerInput.changeAttachments((current) =>
+        current.some((candidate) => isPluginAttachment(candidate, plugin.id, sourceId, item.id))
+          ? current
+          : [...current, attachment],
+      );
+    },
+    removeAttachment({ sourceId, itemId }) {
+      assertUnlocked(composerInput.isLocked);
+      composerInput.changeAttachments((current) =>
+        current.filter((candidate) => !isPluginAttachment(candidate, plugin.id, sourceId, itemId)),
+      );
+    },
+    setProvider: (provider) => whenUnlocked(agent, () => agent.setProvider(provider)),
+    setModel: (modelId) => whenUnlocked(agent, () => agent.setModel(modelId)),
+    setMode: (modeId) => whenUnlocked(agent, () => agent.setMode(modeId)),
+    setThinking: (thinkingOptionId) =>
+      whenUnlocked(agent, () => agent.setThinking(thinkingOptionId)),
+    setOptions: (patch) => whenUnlocked(agent, () => agent.setOptions(patch)),
+    setMetadata: (patch) => whenUnlocked(agent, () => agent.setMetadata(patch)),
+  };
+}

packages/app/src/plugins/evaluate.test.ts

@@ -531,6 +531,38 @@ describe("evaluatePluginClientBundle", () => {
     ).toThrow("Duplicate Command Center item: review");
   });
 
+  it("collects composer items and releases an id on removal", () => {
+    const plugin = evaluatePluginClientBundle(
+      "review",
+      bundle(`
+        function Item() { return null; }
+        const remove = plugin.addComposerItem({ id: "flag", Component: Item });
+        remove();
+        plugin.addComposerItem({ id: "flag", Component: Item });
+      `),
+    );
+    expect(plugin.composerItems.map((item) => item.id)).toEqual(["flag"]);
+  });
+
+  it("rejects duplicate and non-component composer items", () => {
+    expect(() =>
+      evaluatePluginClientBundle(
+        "review",
+        bundle(`
+          function Item() { return null; }
+          plugin.addComposerItem({ id: "flag", Component: Item });
+          plugin.addComposerItem({ id: "flag", Component: Item });
+        `),
+      ),
+    ).toThrow("Duplicate composer item: flag");
+    expect(() =>
+      evaluatePluginClientBundle(
+        "review",
+        bundle(`plugin.addComposerItem({ id: "flag", Component: "nope" })`),
+      ),
+    ).toThrow("Composer item flag is not a component");
+  });
+
   it("runs the client entry with the full runtime context", () => {
     const plugin = evaluatePluginClientBundle(
       "review",

packages/app/src/plugins/evaluate.ts

@@ -131,6 +131,7 @@ export function runPluginClientBundle(
     sidebarItems: { header: [], footer: [] },
     legacySidebarItems: [],
     filePanels: [],
+    composerItems: [],
     workspacePanels: [],
     commandCenterItems: [],
     clientSlashCommands: [],
@@ -146,6 +147,7 @@ export function runPluginClientBundle(
     footer: new Set(),
   };
   const filePanelIds = new Set<string>();
+  const composerItemIds = new Set<string>();
   const workspacePanelIds = new Set<string>();
   const commandCenterItemIds = new Set<string>();
   const clientSlashCommandNames = new Set<string>();
@@ -269,6 +271,20 @@ export function runPluginClientBundle(
         () => surfaceIds.delete(normalizedId),
       );
     },
+    addComposerItem(contribution) {
+      const normalizedId = requireId(contribution.id, "composer item id");
+      if (composerItemIds.has(normalizedId))
+        throw new Error(`Duplicate composer item: ${normalizedId}`);
+      if (!isComponentType(contribution.Component)) {
+        throw new Error(`Composer item ${normalizedId} is not a component`);
+      }
+      composerItemIds.add(normalizedId);
+      return register(
+        collector.composerItems,
+        { id: normalizedId, Component: contribution.Component },
+        () => composerItemIds.delete(normalizedId),
+      );
+    },
     addSidebarHeaderItem(contribution: PluginSidebarItemContribution) {
       return addSidebarItem("header", contribution);
     },
@@ -585,6 +601,7 @@ export function runPluginClientBundle(
     sidebarItems: collector.sidebarItems,
     legacySidebarItems: collector.legacySidebarItems,
     filePanels: collector.filePanels,
+    composerItems: collector.composerItems,
     workspacePanels: collector.workspacePanels as EvaluatedPlugin["workspacePanels"],
     commandCenterItems: collector.commandCenterItems,
     clientSlashCommands: collector.clientSlashCommands,

packages/app/src/plugins/freeze.ts

@@ -0,0 +1,12 @@
+/** A deep copy no plugin can change. Plugins read data through it, never the host's own objects. */
+export function cloneAndFreeze<T>(value: T): T {
+  if (Array.isArray(value)) {
+    return Object.freeze(value.map((entry) => cloneAndFreeze(entry))) as T;
+  }
+  if (value !== null && typeof value === "object") {
+    return Object.freeze(
+      Object.fromEntries(Object.entries(value).map(([key, entry]) => [key, cloneAndFreeze(entry)])),
+    ) as T;
+  }
+  return value;
+}

packages/app/src/plugins/icons.ts

@@ -25,6 +25,11 @@ function findLucideIcon(name: string): LucideIcon | null {
   return isComponent(candidate) ? (candidate as LucideIcon) : null;
 }
 
+/** Whether `name` is a Lucide icon, so a caller can fall back before drawing nothing. */
+export function isLucideIconName(name: string): boolean {
+  return findLucideIcon(name) !== null;
+}
+
 function isComponent(value: unknown): boolean {
   return (
     typeof value === "function" ||

packages/app/src/plugins/installation-provider.test.tsx

@@ -36,6 +36,7 @@ function installation(invoked: string[]): InstalledPlugin {
     sidebarItems: { header: [], footer: [] },
     legacySidebarItems: [],
     filePanels: [],
+    composerItems: [],
     workspacePanels: [],
     commandCenterItems: [],
     clientSlashCommands: [],

packages/app/src/plugins/react-native/composer-controls.tsx

@@ -0,0 +1,87 @@
+import type { ActionProps, SelectProps, ToggleProps } from "@getpaseo/plugin/client/ui";
+import { useMemo, useState } from "react";
+import {
+  ComposerControl,
+  useComposerControlSurface,
+  type ComposerControlItem,
+} from "@/composer/agent-controls/composer-control";
+import { useComposerLocked } from "@/composer/session";
+import { parsePluginIcon, pluginIconComponent } from "../icons";
+
+/** Icons resolve at render, so an invalid one throws to the item's boundary. */
+function usePluginControlIcon(icon: ToggleProps["icon"]) {
+  return useMemo(() => pluginIconComponent(parsePluginIcon("Composer control", icon)), [icon]);
+}
+
+/** Draws one plugin control where its composer item sits: inline, or as a row in the sheet. */
+function PluginComposerControl({
+  item,
+  disabled,
+}: {
+  item: ComposerControlItem;
+  disabled: boolean | undefined;
+}) {
+  const surface = useComposerControlSurface();
+  const locked = useComposerLocked();
+  const [open, setOpen] = useState(false);
+  return (
+    <ComposerControl
+      item={item}
+      surface={surface}
+      disabled={disabled || locked}
+      open={open}
+      onOpenChange={setOpen}
+    />
+  );
+}
+
+export function Toggle({ title, icon, disabled, value, onValueChange }: ToggleProps) {
+  const Icon = usePluginControlIcon(icon);
+  const item = useMemo<ComposerControlItem>(
+    () => ({
+      id: "plugin-toggle",
+      type: "toggle",
+      title,
+      icon: Icon,
+      highlight: value ? "blue" : undefined,
+      value,
+      onChange: (next) => onValueChange({ value: next }),
+    }),
+    [Icon, onValueChange, title, value],
+  );
+  return <PluginComposerControl item={item} disabled={disabled} />;
+}
+
+export function Select<Value extends string>({
+  title,
+  icon,
+  disabled,
+  value,
+  options,
+  onValueChange,
+}: SelectProps<Value>) {
+  const Icon = usePluginControlIcon(icon);
+  const item = useMemo<ComposerControlItem>(
+    () => ({
+      id: "plugin-select",
+      type: "select",
+      title,
+      icon: Icon,
+      value,
+      choices: options,
+      onChange: (next) => onValueChange({ value: next as Value }),
+      showCaret: true,
+    }),
+    [Icon, onValueChange, options, title, value],
+  );
+  return <PluginComposerControl item={item} disabled={disabled} />;
+}
+
+export function Action({ title, icon, disabled, onPress }: ActionProps) {
+  const Icon = usePluginControlIcon(icon);
+  const item = useMemo<ComposerControlItem>(
+    () => ({ id: "plugin-action", type: "action", title, icon: Icon, onPress: () => onPress({}) }),
+    [Icon, onPress, title],
+  );
+  return <PluginComposerControl item={item} disabled={disabled} />;
+}

packages/app/src/plugins/react-native/ui.ts

@@ -20,6 +20,7 @@ export { FilePanelLoading as Loading } from "@/file-panels/loading";
 export { SettingsGroup } from "@/components/settings";
 
 export { Icon } from "../icons";
+export { Action, Select, Toggle } from "./composer-controls";
 export { Modal } from "./modal";
 export { ScrollView, FlatList } from "./scroll-view";
 export { TextInput } from "./text-input";

packages/app/src/plugins/registry.ts

@@ -106,6 +106,7 @@ export class PluginRegistry {
           sidebarItems: { header: [], footer: [] },
           legacySidebarItems: [],
           filePanels: [],
+          composerItems: [],
           workspacePanels: [],
           commandCenterItems: [],
           clientSlashCommands: [],

packages/app/src/plugins/sidebar-groups.test.ts

@@ -34,6 +34,7 @@ function installed(
     },
     legacySidebarItems,
     filePanels: [],
+    composerItems: [],
     workspacePanels: [],
     commandCenterItems: [],
     clientSlashCommands: [],

packages/app/src/plugins/surface-contribution.test.ts

@@ -36,6 +36,7 @@ function installation(
       icon: "Blocks",
     })),
     filePanels: [],
+    composerItems: [],
     workspacePanels: [],
     commandCenterItems: [],
     clientSlashCommands: [],

packages/app/src/plugins/theme.test.ts

@@ -61,6 +61,7 @@ function installed(serverId: string, themes: PluginThemeContribution[]): Install
     sidebarItems: { header: [], footer: [] },
     legacySidebarItems: [],
     filePanels: [],
+    composerItems: [],
     workspacePanels: [],
     commandCenterItems: [],
     clientSlashCommands: [],

packages/app/src/plugins/timeline/model.test.ts

@@ -24,6 +24,7 @@ function plugin(input: {
     sidebarItems: { header: [], footer: [] },
     legacySidebarItems: [],
     filePanels: [],
+    composerItems: [],
     workspacePanels: [],
     commandCenterItems: [],
     clientSlashCommands: [],

packages/app/src/plugins/timeline/projection.ts

@@ -1,5 +1,6 @@
 import type { AgentTimelineItem, ToolCallTimelineItem } from "@getpaseo/protocol/agent-types";
 import type { AgentToolCallData, PluginTimelineStreamItem, StreamItem } from "@/types/stream";
+import { cloneAndFreeze } from "../freeze";
 import type { TimelineItemTransform } from "./model";
 
 type AssistantPhase = "streaming" | "complete";
@@ -9,18 +10,6 @@ const projectionCache = new WeakMap<
   WeakMap<StreamItem, Partial<Record<AssistantPhase, StreamItem[]>>>
 >();
 
-function cloneAndFreeze<T>(value: T): T {
-  if (Array.isArray(value)) {
-    return Object.freeze(value.map((entry) => cloneAndFreeze(entry))) as T;
-  }
-  if (value !== null && typeof value === "object") {
-    return Object.freeze(
-      Object.fromEntries(Object.entries(value).map(([key, entry]) => [key, cloneAndFreeze(entry)])),
-    ) as T;
-  }
-  return value;
-}
-
 function sourceToolCallTimelineItem(data: AgentToolCallData): ToolCallTimelineItem {
   const { callId, name, status, error, detail, metadata } = data;
   const base = {

packages/app/src/plugins/types.ts

@@ -11,6 +11,7 @@ import type {
   PluginFilePanelContribution as SDKPluginFilePanelContribution,
   PluginCommandCenterItemContribution as SDKPluginCommandCenterItemContribution,
   PluginClientSlashCommandContribution as SDKPluginClientSlashCommandContribution,
+  PluginComposerItemContribution,
   PluginComposerPillContribution as SDKPluginComposerPillContribution,
   PluginSidebarContribution as SDKPluginSidebarContribution,
   PluginSidebarItemContribution as SDKPluginSidebarItemContribution,
@@ -53,6 +54,7 @@ export interface EvaluatedPlugin {
   /** `addSidebarItem` registrations, so `/plugin/<id>/sidebar/<item>` routes keep resolving. */
   legacySidebarItems: PluginSidebarContribution[];
   filePanels: PluginFilePanelContribution[];
+  composerItems: PluginComposerItemContribution[];
   workspacePanels: EvaluatedPluginWorkspacePanelContribution[];
   commandCenterItems: PluginCommandCenterItemContribution[];
   clientSlashCommands: PluginClientSlashCommandContribution[];
@@ -82,6 +84,7 @@ export type {
   PluginAttachmentSourceContribution,
   PluginCommandCenterItemContribution,
   PluginClientSlashCommandContribution,
+  PluginComposerItemContribution,
   PluginComposerPillContribution,
   PluginSidebarContribution,
   PluginSidebarItemContribution,

packages/app/src/plugins/workspace-panels/resolution.test.ts

@@ -21,6 +21,7 @@ function installed(): InstalledPlugin {
     sidebarItems: { header: [], footer: [] },
     legacySidebarItems: [],
     filePanels: [],
+    composerItems: [],
     workspacePanels: [
       {
         id: "details",

packages/app/src/provider-selection/agent-form-store.ts

@@ -0,0 +1,93 @@
+import type { AgentProviderDefinition } from "@getpaseo/protocol/provider-manifest";
+import type { AgentModelDefinition, AgentProvider } from "@getpaseo/protocol/agent-types";
+import type { FormPreferences } from "@/hooks/use-form-preferences";
+import {
+  INITIAL_AGENT_FORM_RESOLUTION,
+  INITIAL_USER_MODIFIED,
+  isUnlistedModel,
+  resolveAgentForm,
+  type AgentFormAction,
+  type AgentFormReducerState,
+} from "@/provider-selection/resolve-agent-form";
+
+/** What the host offers right now. The store reads it when a command runs, never earlier. */
+export interface AgentFormCatalog {
+  /** The providers the host can run. */
+  selectableProviders: ReadonlyMap<AgentProvider, AgentProviderDefinition>;
+  /** Each provider's selectable models; empty when the host has listed none. */
+  models: ReadonlyMap<string, AgentModelDefinition[]>;
+  providerPreferences: (
+    provider: AgentProvider,
+  ) => NonNullable<FormPreferences["providerPreferences"]>[AgentProvider] | undefined;
+}
+
+/**
+ * The draft form as a plain model: `resolveAgentForm` applied synchronously. A command reads
+ * `getState()` and the catalog when it runs, so the one after `await setProvider(...)` sees the
+ * new provider instead of the render that created it.
+ */
+export interface AgentFormStore {
+  getState: () => AgentFormReducerState;
+  dispatch: (action: AgentFormAction) => void;
+  subscribe: (listener: () => void) => () => void;
+  /** `false` when the provider is unknown or not ready; the form is left as it was. */
+  setProviderAndModel: (provider: AgentProvider, modelId: string) => boolean;
+  /**
+   * `false` when the provider's catalog is loaded and does not list the model. A catalog that has
+   * not arrived keeps the id as given.
+   */
+  setModel: (modelId: string) => boolean;
+}
+
+export function openAgentForm(catalog: () => AgentFormCatalog): AgentFormStore {
+  let state: AgentFormReducerState = {
+    form: { provider: null, modeId: "", model: "", thinkingOptionId: "" },
+    userModified: INITIAL_USER_MODIFIED,
+    resolution: INITIAL_AGENT_FORM_RESOLUTION,
+  };
+  const listeners = new Set<() => void>();
+  function dispatch(action: AgentFormAction): void {
+    const next = resolveAgentForm(state, action);
+    if (next === state) return;
+    state = next;
+    for (const listener of listeners) listener();
+  }
+  return {
+    getState: () => state,
+    dispatch,
+    setProviderAndModel: (provider, modelId) => {
+      const host = catalog();
+      const providerDef = host.selectableProviders.get(provider);
+      if (!providerDef) return false;
+      dispatch({
+        type: "SET_PROVIDER_AND_MODEL_FROM_USER",
+        provider,
+        modelId,
+        providerDef,
+        providerModels: host.models.get(provider) ?? null,
+        providerPrefs: host.providerPreferences(provider),
+      });
+      return true;
+    },
+    setModel: (modelId) => {
+      const { provider } = state.form;
+      const host = catalog();
+      const listed = provider ? host.models.get(provider) : undefined;
+      const models = listed?.length ? listed : null;
+      if (isUnlistedModel(models, modelId)) return false;
+      dispatch({
+        type: "SET_MODEL_FROM_USER",
+        modelId,
+        availableModels: models,
+        providerPrefs: provider ? host.providerPreferences(provider) : undefined,
+      });
+      return true;
+    },
+    subscribe: (listener) => {
+      listeners.add(listener);
+      return () => {
+        listeners.delete(listener);
+      };
+    },
+  };
+}

packages/app/src/provider-selection/provider-selection.ts

@@ -312,7 +312,7 @@ export function buildDraftCommandTarget(input: {
   cwd: string;
   effectiveModelId: string;
   effectiveThinkingOptionId: string;
-  featureValues?: Record<string, unknown>;
+  providerOptions?: Record<string, unknown>;
 }): DraftCommandTarget {
   const cwd = input.cwd.trim();
   if (!cwd) {
@@ -332,7 +332,7 @@ export function buildDraftCommandTarget(input: {
     ...(input.effectiveThinkingOptionId
       ? { thinkingOptionId: input.effectiveThinkingOptionId }
       : {}),
-    ...(input.featureValues ? { featureValues: input.featureValues } : {}),
+    ...(input.providerOptions ? { providerOptions: input.providerOptions } : {}),
   };
   return { status: "ready", config };
 }

packages/app/src/provider-selection/resolve-agent-form.test.ts

@@ -3,6 +3,7 @@ import {
   resolveAgentForm,
   resolveFormState,
   resolveEffectiveModel,
+  isUnlistedModel,
   resolveThinkingOptionId,
   mergeSelectedComposerPreferences,
   buildProviderDefinitionMap,
@@ -131,6 +132,19 @@ describe("resolveDefaultModel", () => {
   });
 });
 
+describe("isUnlistedModel", () => {
+  it("rejects an id the provider's catalog lacks, and accepts a listed id or alias", () => {
+    expect(isUnlistedModel(ALIASED_CODEX_MODELS, "not-in-the-catalog")).toBe(true);
+    expect(isUnlistedModel(ALIASED_CODEX_MODELS, "gpt-5.3-codex")).toBe(false);
+    expect(isUnlistedModel(ALIASED_CODEX_MODELS, "gpt-5.3-codex-legacy")).toBe(false);
+  });
+
+  it("accepts any id while the provider has listed no models", () => {
+    expect(isUnlistedModel(null, "anything")).toBe(false);
+    expect(isUnlistedModel([], "anything")).toBe(false);
+  });
+});
+
 describe("model aliases", () => {
   it("canonicalizes a retired preferred model and restores thinking from its alias key", () => {
     const resolved = resolveFormState(
@@ -284,7 +298,7 @@ describe("mergeSelectedComposerPreferences", () => {
             codex: {
               mode: "full-access",
               thinkingByModel: { "gpt-5.4-mini": "medium" },
-              featureValues: { fast_mode: true },
+              options: { fast_mode: true },
             },
             claude: { model: "claude-sonnet-4-6" },
           },
@@ -299,7 +313,7 @@ describe("mergeSelectedComposerPreferences", () => {
           model: "gpt-5.4",
           mode: "full-access",
           thinkingByModel: { "gpt-5.4-mini": "medium" },
-          featureValues: { fast_mode: true },
+          options: { fast_mode: true },
         },
         claude: { model: "claude-sonnet-4-6" },
       },

packages/app/src/provider-selection/resolve-agent-form.ts

@@ -153,6 +153,19 @@ export function resolveEffectiveModel(
   return findModelByReference(availableModels, modelId) ?? null;
 }
 
+/**
+ * True when the provider has listed its models and this id is not among them. A provider that
+ * lists none accepts any id.
+ */
+export function isUnlistedModel(
+  availableModels: AgentModelDefinition[] | null,
+  modelId: string,
+): boolean {
+  if (!availableModels || availableModels.length === 0) return false;
+  if (!normalizeSelectedModelId(modelId)) return false;
+  return !resolveEffectiveModel(availableModels, modelId);
+}
+
 function resolvePreferredThinkingOptionId(input: {
   availableModels: AgentModelDefinition[] | null;
   providerPrefs: ProviderPrefs | undefined;

packages/app/src/screens/new-workspace-screen.tsx

@@ -271,7 +271,7 @@ interface WorkspaceDraftSubmissionConfig {
   modeId: string | null;
   model: string | null;
   thinkingOptionId: string | null;
-  featureValues: Record<string, unknown> | undefined;
+  providerOptions: Record<string, unknown> | undefined;
   target: WorkspaceTabTarget;
 }
 
@@ -374,7 +374,7 @@ function buildWorkspaceDraftSetupFromComposer(input: {
     modeId: input.composerState.effectiveModeId || null,
     model: input.composerState.effectiveModelId || null,
     thinkingOptionId: input.composerState.effectiveThinkingOptionId || null,
-    featureValues: input.composerState.featureValues ?? {},
+    providerOptions: input.composerState.providerOptions ?? {},
   };
 }
 
@@ -454,8 +454,9 @@ async function createWorkspaceChatAgent(input: CreateChatAgentInput): Promise<Su
       modeId: composerState.effectiveModeId || undefined,
       model: composerState.effectiveModelId || undefined,
       thinkingOptionId: composerState.effectiveThinkingOptionId || undefined,
-      featureValues: composerState.featureValues,
+      providerOptions: composerState.providerOptions,
     },
+    ...(Object.keys(composerState.metadata).length > 0 ? { metadata: composerState.metadata } : {}),
     initialPrompt: text,
     clientMessageId: `${input.draftId}:initial-message`,
     images: images?.length ? images : undefined,
@@ -534,7 +535,8 @@ function buildComposerConfig(input: {
   return {
     initialServerId: serverId || null,
     initialValues: buildComposerInitialValues({ initialSetup }),
-    initialFeatureValues: initialSetup?.featureValues,
+    initialProviderOptions: initialSetup?.providerOptions,
+    context: "new-workspace" as const,
     isVisible: true,
     lockedWorkingDir: workingDir,
   };
@@ -567,7 +569,7 @@ function resolveWorkspaceDraftSubmissionConfig(input: {
       modeId: initialSetup.modeId,
       model: initialSetup.model,
       thinkingOptionId: initialSetup.thinkingOptionId,
-      featureValues: initialSetup.featureValues,
+      providerOptions: initialSetup.providerOptions,
       target: { kind: "draft", draftId, setup: initialSetup },
     };
   }
@@ -577,7 +579,7 @@ function resolveWorkspaceDraftSubmissionConfig(input: {
     modeId: composerState.effectiveModeId || null,
     model: composerState.effectiveModelId || null,
     thinkingOptionId: composerState.effectiveThinkingOptionId || null,
-    featureValues: composerState.featureValues,
+    providerOptions: composerState.providerOptions,
     target: { kind: "draft", draftId },
   };
 }
@@ -635,7 +637,7 @@ function submitWorkspaceDraft(input: SubmitDraftInput): SubmitOutcome {
     ...(submission.modeId ? { modeId: submission.modeId } : {}),
     ...(submission.model ? { model: submission.model } : {}),
     ...(submission.thinkingOptionId ? { thinkingOptionId: submission.thinkingOptionId } : {}),
-    ...(submission.featureValues ? { featureValues: submission.featureValues } : {}),
+    ...(submission.providerOptions ? { providerOptions: submission.providerOptions } : {}),
     allowEmptyText: true,
     agentCreation: input.agentCreation,
   });

packages/app/src/screens/new-workspace/background-handoff.test.ts

@@ -69,7 +69,7 @@ describe("createWorkspaceAgentInBackground", () => {
           modeId: null,
           model: null,
           thinkingOptionId: null,
-          featureValues: {},
+          providerOptions: {},
         },
       });
     });
@@ -89,7 +89,7 @@ describe("createWorkspaceAgentInBackground", () => {
         modeId: null,
         model: null,
         thinkingOptionId: null,
-        featureValues: {},
+        providerOptions: {},
       },
     });
 

packages/app/src/screens/workspace/workspace-draft-agent-config.ts

@@ -6,7 +6,7 @@ export function buildWorkspaceDraftAgentConfig(input: {
   modeId?: string;
   model?: string;
   thinkingOptionId?: string;
-  featureValues?: Record<string, unknown>;
+  providerOptions?: Record<string, unknown>;
 }): AgentSessionConfig {
   return {
     provider: input.provider,
@@ -14,6 +14,6 @@ export function buildWorkspaceDraftAgentConfig(input: {
     ...(input.modeId ? { modeId: input.modeId } : {}),
     ...(input.model ? { model: input.model } : {}),
     ...(input.thinkingOptionId ? { thinkingOptionId: input.thinkingOptionId } : {}),
-    ...(input.featureValues ? { featureValues: input.featureValues } : {}),
+    ...(input.providerOptions ? { providerOptions: input.providerOptions } : {}),
   };
 }

packages/app/src/stores/draft-store/index.ts

@@ -36,6 +36,8 @@ import {
 } from "./migration";
 import { createDraftPersistStorage } from "./persistence";
 import { createValidatedPersistStorage } from "@/storage/validated-persist-storage";
+import type { JsonValue } from "@getpaseo/protocol/agent-types";
+import { applyMetadataPatch } from "@/composer/draft/metadata";
 
 export type { DraftInput, DraftLifecycleState } from "./state";
 
@@ -49,6 +51,9 @@ interface DraftStoreActions {
     draftKey: string;
     lifecycle?: Exclude<DraftLifecycleState, "active">;
   }) => void;
+  /** Plugin metadata the draft will create its agent with; see `composer/draft/metadata`. */
+  patchDraftMetadata: (input: { draftKey: string; patch: Record<string, JsonValue> }) => void;
+  clearDraftMetadata: (input: { draftKey: string }) => void;
   attachWorkspaceFile: (input: {
     draftKey: string;
     attachment: WorkspaceFileComposerAttachment;
@@ -60,6 +65,11 @@ interface DraftStoreActions {
 
 interface DraftStoreRuntimeState {
   attachmentFocusRequestByDraftKey: Record<string, number>;
+  /**
+   * Kept beside the prompt so a composer that remounts finds it. Not persisted, and not cleared
+   * with an emptied prompt: a plugin's choice outlives the text until the draft is sent.
+   */
+  metadataByDraftKey: Record<string, Record<string, JsonValue>>;
 }
 
 type DraftStore = DraftStoreState & DraftStoreRuntimeState & DraftStoreActions;
@@ -256,6 +266,7 @@ export const useDraftStore = create<DraftStore>()(
       drafts: {},
       createModalDraft: null,
       attachmentFocusRequestByDraftKey: {},
+      metadataByDraftKey: {},
 
       getDraftInput: (draftKey) => {
         const record = get().drafts[draftKey];
@@ -374,6 +385,25 @@ export const useDraftStore = create<DraftStore>()(
         scheduleAttachmentGc();
       },
 
+      patchDraftMetadata: ({ draftKey, patch }) => {
+        set((state) => {
+          const next = applyMetadataPatch(state.metadataByDraftKey[draftKey] ?? {}, patch);
+          const { [draftKey]: _previous, ...others } = state.metadataByDraftKey;
+          return {
+            metadataByDraftKey:
+              Object.keys(next).length > 0 ? { ...others, [draftKey]: next } : others,
+          };
+        });
+      },
+
+      clearDraftMetadata: ({ draftKey }) => {
+        set((state) => {
+          if (!(draftKey in state.metadataByDraftKey)) return state;
+          const { [draftKey]: _removed, ...others } = state.metadataByDraftKey;
+          return { metadataByDraftKey: others };
+        });
+      },
+
       attachWorkspaceFile: async ({ draftKey, attachment }) => {
         await get().hydrateDraftInput({ draftKey });
         set((state) => {

packages/app/src/stores/draft-store/metadata.test.ts

@@ -0,0 +1,35 @@
+import { beforeEach, describe, expect, it } from "vitest";
+import { useDraftStore } from "./index";
+
+const draftKey = "draft:metadata";
+
+describe("a draft's plugin metadata", () => {
+  beforeEach(() => {
+    useDraftStore.setState({ drafts: {}, metadataByDraftKey: {} });
+  });
+
+  it("is there when the draft's composer mounts again", () => {
+    const store = useDraftStore.getState();
+    store.editDraftText({ draftKey, text: "review this" });
+    store.patchDraftMetadata({ draftKey, patch: { "plugin.review": true, "plugin.tag": "a" } });
+    store.patchDraftMetadata({ draftKey, patch: { "plugin.tag": null } });
+
+    // A remount reads the store again; nothing from the unmounted composer is kept.
+    const remounted = useDraftStore.getState();
+    expect(remounted.getDraftInput(draftKey)?.text).toBe("review this");
+    expect(remounted.metadataByDraftKey[draftKey]).toEqual({ "plugin.review": true });
+  });
+
+  it("is dropped with the prompt once the draft is sent, and not before", () => {
+    const store = useDraftStore.getState();
+    store.patchDraftMetadata({ draftKey, patch: { "plugin.review": true } });
+
+    store.clearDraftInput({ draftKey, lifecycle: "abandoned" });
+    expect(useDraftStore.getState().metadataByDraftKey[draftKey]).toEqual({
+      "plugin.review": true,
+    });
+
+    store.clearDraftMetadata({ draftKey });
+    expect(useDraftStore.getState().metadataByDraftKey[draftKey]).toBeUndefined();
+  });
+});

packages/app/src/stores/session-store.ts

@@ -26,7 +26,9 @@ import type { ComposerAttachment } from "@/attachments/types";
 import type { AgentLifecycleStatus } from "@getpaseo/protocol/agent-lifecycle";
 import type {
   AgentPermissionRequest,
-  AgentFeature,
+  AgentOptionControl,
+  JsonValue,
+  ProviderOptions,
   AgentProvider,
   AgentMode,
   AgentCapabilityFlags,
@@ -91,7 +93,8 @@ export interface Agent {
   cwd: string;
   workspaceId?: string;
   model: string | null;
-  features?: AgentFeature[];
+  options?: ProviderOptions;
+  controls?: AgentOptionControl[];
   thinkingOptionId?: string | null;
   requiresAttention?: boolean;
   attentionReason?: "finished" | "error" | "permission" | null;
@@ -99,6 +102,7 @@ export interface Agent {
   archivedAt?: Date | null;
   parentAgentId: string | null;
   labels: Record<string, string>;
+  metadata?: Record<string, JsonValue>;
   projectPlacement?: ProjectPlacementPayload | null;
 }
 

packages/app/src/stores/workspace-draft-submission-store.ts

@@ -23,7 +23,7 @@ export interface PendingWorkspaceDraftSubmission {
   modeId?: string;
   model?: string;
   thinkingOptionId?: string;
-  featureValues?: Record<string, unknown>;
+  providerOptions?: Record<string, unknown>;
   allowEmptyText?: boolean;
 }
 

packages/app/src/stores/workspace-layout-persistence.test.ts

@@ -95,6 +95,53 @@ it("keeps the saved layout when the shell publishes its layout mode before hydra
   );
 });
 
+it("keeps every saved layout when a draft tab's setup carries a nested provider option", async () => {
+  const values = new Map<string, string>();
+  const storage: StateStorage = {
+    getItem: (name) => values.get(name) ?? null,
+    setItem: (name, value) => {
+      values.set(name, value);
+    },
+    removeItem: (name) => {
+      values.delete(name);
+    },
+  };
+  const store = createWorkspaceLayoutStore(undefined, storage);
+  await store.persist.rehydrate();
+  store.getState().openTab({
+    workspaceKey: "server:kept",
+    target: { kind: "agent", agentId: "agent-1" },
+    intent: "reveal",
+  });
+  store.getState().openTab({
+    workspaceKey: "server:forked",
+    target: {
+      kind: "draft",
+      draftId: "draft-1",
+      setup: {
+        provider: "codex",
+        cwd: "/repo",
+        modeId: null,
+        model: null,
+        thinkingOptionId: null,
+        providerOptions: { sandbox_workspace_write: { network_access: true }, max_turns: 3 },
+      },
+    },
+    intent: "reveal",
+  });
+
+  const restored = createWorkspaceLayoutStore(undefined, storage);
+  await restored.persist.rehydrate();
+
+  expect(Object.keys(restored.getState().layoutByWorkspace).sort()).toEqual([
+    "server:forked",
+    "server:kept",
+  ]);
+  expect(JSON.stringify(restored.getState().layoutByWorkspace["server:forked"])).toContain(
+    "network_access",
+  );
+});
+
 it.each([1, 2])(
   "restores the agent pane after parked focus in storage version %i",
   async (version) => {

packages/app/src/stores/workspace-layout-storage.ts

@@ -1,14 +1,25 @@
 import { z } from "zod";
 import type { SplitNode, WorkspaceLayout } from "./workspace-layout-actions";
 
-const WorkspaceDraftTabSetupStorageSchema = z.strictObject({
-  provider: z.string(),
-  cwd: z.string(),
-  modeId: z.string().nullable(),
-  model: z.string().nullable(),
-  thinkingOptionId: z.string().nullable(),
-  featureValues: z.record(z.string(), z.union([z.boolean(), z.string(), z.null()])),
-});
+// COMPAT(providerOptionControls): added in v0.15.0, remove after 2027-05-01. Layouts saved before
+// the rename stored the same record as `featureValues`.
+function renameLegacyFeatureValues(value: unknown): unknown {
+  if (typeof value !== "object" || value === null || !("featureValues" in value)) return value;
+  const { featureValues, ...rest } = value as { featureValues: unknown } & Record<string, unknown>;
+  return "providerOptions" in rest ? rest : { ...rest, providerOptions: featureValues };
+}
+
+const WorkspaceDraftTabSetupStorageSchema = z.preprocess(
+  renameLegacyFeatureValues,
+  z.strictObject({
+    provider: z.string(),
+    cwd: z.string(),
+    modeId: z.string().nullable(),
+    model: z.string().nullable(),
+    thinkingOptionId: z.string().nullable(),
+    providerOptions: z.record(z.string(), z.json()),
+  }),
+);
 const WorkspaceTabTargetStorageSchema = z.discriminatedUnion("kind", [
   z.strictObject({ kind: z.literal("new_tab") }),
   z.strictObject({

packages/app/src/stores/workspace-layout-store.test.ts

@@ -4551,7 +4551,6 @@ describe("compact workspace sheet", () => {
             title: agent.id,
             cwd: "/repo",
             model: null,
-            features: undefined,
             thinkingOptionId: undefined,
             requiresAttention: false,
             attentionReason: null,

packages/app/src/stores/workspace-subagents-integration.test.ts

@@ -63,7 +63,6 @@ const AGENT_DEFAULTS: Agent = {
   cwd: WORKSPACE_DIRECTORY,
   workspaceId: WORKSPACE_ID,
   model: null,
-  features: undefined,
   thinkingOptionId: undefined,
   requiresAttention: false,
   attentionReason: null,

packages/app/src/subagents/select.test.ts

@@ -41,7 +41,6 @@ const AGENT_DEFAULTS: Agent = {
   title: "Agent",
   cwd: "/tmp/project",
   model: null,
-  features: undefined,
   thinkingOptionId: undefined,
   requiresAttention: false,
   attentionReason: null,

packages/app/src/subagents/sheet-tab.test.tsx

@@ -60,7 +60,6 @@ const AGENT_DEFAULTS: Agent = {
   cwd: "/repo/worktree",
   workspaceId: WORKSPACE_ID,
   model: null,
-  features: undefined,
   thinkingOptionId: undefined,
   requiresAttention: false,
   attentionReason: null,