Add Antigravity CLI to ACP catalog

docs/custom-providers.md

@@ -339,7 +339,7 @@ The [Agent Client Protocol (ACP)](https://agentclientprotocol.com) is an open st
 
 ACP agents communicate over JSON-RPC 2.0 on stdio. Paseo spawns the agent process and talks to it through stdin/stdout.
 
-Paseo also ships an in-app ACP provider catalog for common agents, including Cursor, DeepAgents, DeepSeek TUI, DimCode, Gemini CLI, Hermes, Qwen Code, and Kimi Code. Catalog entries create the same `extends: "acp"` provider config shown below.
+Paseo also ships an in-app ACP provider catalog for common agents, including Google Antigravity CLI, Cursor, DeepAgents, DeepSeek TUI, DimCode, Gemini CLI, Hermes, Qwen Code, and Kimi Code. Catalog entries create the same `extends: "acp"` provider config shown below.
 
 ### Adding a generic ACP provider
 

package-lock.json

@@ -36626,6 +36626,7 @@
       "name": "@getpaseo/cli",
       "version": "0.1.78",
       "dependencies": {
+        "@agentclientprotocol/sdk": "^0.17.1",
         "@clack/prompts": "^1.0.0",
         "@getpaseo/server": "0.1.78",
         "chalk": "^5.3.0",

packages/app/src/assets/acp-provider-icons.ts

@@ -5,6 +5,8 @@ export const ACP_PROVIDER_ICON_SVGS = {
     '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" fill="none">\n  <circle cx="8" cy="8" r="7" stroke="currentColor" stroke-width="1.5"/>\n  <path d="M5.5 10.5L8 4L10.5 10.5" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>\n  <line x1="6.25" y1="8.75" x2="9.75" y2="8.75" stroke="currentColor" stroke-width="1.2" stroke-linecap="round"/>\n</svg>\n',
   "amp-acp":
     '<svg width="16" height="16" viewBox="0 0 28 28" fill="none" xmlns="http://www.w3.org/2000/svg">\n<path d="M13.9197 13.61L17.3816 26.566L14.242 27.4049L11.2645 16.2643L0.119926 13.2906L0.957817 10.15L13.9197 13.61Z" fill="currentColor"/>\n<path d="M13.7391 16.0892L4.88169 24.9056L2.58872 22.6019L11.4461 13.7865L13.7391 16.0892Z" fill="currentColor"/>\n<path d="M18.9386 8.58315L22.4005 21.5392L19.2609 22.3781L16.2833 11.2374L5.13879 8.26381L5.97668 5.12318L18.9386 8.58315Z" fill="currentColor"/>\n<path d="M23.9803 3.55632L27.4422 16.5124L24.3025 17.3512L21.325 6.21062L10.1805 3.23698L11.0183 0.0963593L23.9803 3.55632Z" fill="currentColor"/>\n</svg>\n',
+  antigravity:
+    '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" fill="none">\n  <path d="M8 1.5L13.75 14.5H11.45L10.2 11.45H5.75L4.55 14.5H2.25L8 1.5ZM6.5 9.55H9.45L8 5.95L6.5 9.55Z" fill="currentColor"/>\n  <path d="M2.25 7.9C2.25 5.1 4.55 2.85 7.4 2.85C10.75 2.85 13.35 5.65 13.35 8.9C13.35 11.4 11.35 13.15 9.1 13.15" stroke="currentColor" stroke-width="1.1" stroke-linecap="round"/>\n</svg>\n',
   auggie:
     '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="none" viewBox="0 0 16 16">\n  <path fill="currentColor" d="M9.972 13.193h2.577q.187 0 .277-.09t.091-.294V10.47q0-.324.133-.59.135-.27.36-.424a1 1 0 0 1 .099-.06 1 1 0 0 1-.1-.058 1.1 1.1 0 0 1-.359-.424 1.3 1.3 0 0 1-.133-.59v-2.33q0-.202-.091-.293t-.277-.089H9.972a.38.38 0 0 1-.294-.124.4.4 0 0 1-.108-.281q.002-.176.131-.293a.46.46 0 0 1 .313-.111h2.775c.36 0 .642.097.836.288q.293.29.294.832V8.24q0 .39.152.562.148.168.555.178a.4.4 0 0 1 .27.128.41.41 0 0 1 .104.287.44.44 0 0 1-.1.282.34.34 0 0 1-.277.132c-.266.006-.452.066-.55.177q-.151.174-.152.573v2.318c0 .235-.043.44-.128.607a.85.85 0 0 1-.389.387 1.3 1.3 0 0 1-.534.124V14h-2.854a.45.45 0 0 1-.315-.118.38.38 0 0 1-.129-.286q0-.164.109-.282a.38.38 0 0 1 .293-.123zM1.103 9.108a.4.4 0 0 1 .276-.128q.4-.008.55-.177.15-.173.151-.562V5.923q.002-.543.294-.832c.195-.191.477-.288.836-.288h2.775q.188 0 .313.111a.37.37 0 0 1 .131.293.4.4 0 0 1-.108.281.38.38 0 0 1-.293.123H3.45q-.186 0-.277.09t-.092.292v2.33c0 .213-.044.413-.133.59a1.1 1.1 0 0 1-.359.424 1 1 0 0 1-.1.059 1 1 0 0 1 .1.059q.225.156.359.423t.133.59v2.34q0 .203.092.293.088.09.277.089h2.577a.38.38 0 0 1 .294.123q.108.12.108.281a.38.38 0 0 1-.13.286.45.45 0 0 1-.314.118l-2.775-.003a1.4 1.4 0 0 1-.613-.126.87.87 0 0 1-.388-.387 1.34 1.34 0 0 1-.129-.608v-2.318q0-.4-.151-.572-.151-.168-.55-.177a.35.35 0 0 1-.278-.132.42.42 0 0 1-.102-.28q0-.173.103-.287"/>\n  <path fill="currentColor" d="M5.437 10.36a.986.986 0 0 1-.994-.975c0-.538.446-.976.994-.976s.994.438.994.976a.986.986 0 0 1-.994.976M10.562 8.41c.548 0 .994.437.994.975a.986.986 0 0 1-.994.976.986.986 0 0 1-.994-.976c0-.538.446-.976.994-.976M8.74 2c.37 0 .446.15.446.275v.034q0 .034-.009.201-.01.162-.017.549-.018.378-.044 1.06c0 .106-.065.233-.375.233-.311 0-.376-.126-.376-.23l-.07-1.835v-.003c0-.13.078-.284.446-.284M7.256 2c.369 0 .446.15.446.275v.034q0 .034-.01.201-.007.162-.017.549-.017.378-.043 1.06c0 .106-.065.233-.376.233-.31 0-.375-.126-.375-.23l-.07-1.835v-.003C6.81 2.154 6.887 2 7.256 2"/>\n</svg>\n',
   autohand:

packages/app/src/data/acp-provider-catalog.ts

@@ -31,6 +31,15 @@ const CATALOG_DATA = [
     installLink: "https://github.com/tao12345666333/amp-acp",
     command: ["amp-acp"],
   },
+  {
+    id: "antigravity",
+    title: "Google Antigravity CLI",
+    description: "Terminal-first surface to interact with Antigravity agents",
+    version: "1.0.0",
+    iconId: "antigravity",
+    installLink: "https://www.antigravity.google/product/antigravity-cli",
+    command: ["paseo", "acp", "antigravity"],
+  },
   {
     id: "auggie",
     title: "Auggie CLI",

packages/app/src/hooks/use-acp-provider-catalog.test.ts

@@ -36,6 +36,7 @@ describe("ACP provider catalog", () => {
 
   it("uses PATH commands for entries that were binary distributions upstream", () => {
     expect(findProvider("amp-acp").command).toEqual(["amp-acp"]);
+    expect(findProvider("antigravity").command).toEqual(["paseo", "acp", "antigravity"]);
     expect(findProvider("cursor").command).toEqual(["cursor-agent", "acp"]);
     expect(findProvider("deepseek-tui").command).toEqual(["deepseek", "serve", "--acp"]);
     expect(findProvider("goose").command).toEqual(["goose", "acp"]);
@@ -58,6 +59,14 @@ describe("ACP provider catalog", () => {
     });
   });
 
+  it("bundles the Antigravity catalog metadata and icon", () => {
+    const provider = findProvider("antigravity");
+
+    expect(provider.description).toBe("Terminal-first surface to interact with Antigravity agents");
+    expect(provider.installLink).toBe("https://www.antigravity.google/product/antigravity-cli");
+    expect(provider.iconSvg).toContain("<svg");
+  });
+
   it("preserves provider env in the daemon config patch", () => {
     const patch = buildAcpProviderConfigPatch(findProvider("auggie"));
 

packages/cli/package.json

@@ -23,6 +23,7 @@
     "test:e2e:lifecycle": "npx tsx tests/e2e/agent-lifecycle.test.ts"
   },
   "dependencies": {
+    "@agentclientprotocol/sdk": "^0.17.1",
     "@clack/prompts": "^1.0.0",
     "@getpaseo/server": "0.1.78",
     "chalk": "^5.3.0",

packages/cli/src/cli.ts

@@ -1,5 +1,6 @@
 import { Command, Option } from "commander";
 import { createAgentCommand } from "./commands/agent/index.js";
+import { createAcpCommand } from "./commands/acp/index.js";
 import { createDaemonCommand } from "./commands/daemon/index.js";
 import { createChatCommand } from "./commands/chat/index.js";
 import { createLoopCommand } from "./commands/loop/index.js";
@@ -94,6 +95,7 @@ export function createCli(): Command {
   );
 
   // Top-level local daemon shortcuts
+  program.addCommand(createAcpCommand());
   program.addCommand(onboardCommand());
   program.addCommand(daemonStartCommand());
 

packages/cli/src/commands/acp/antigravity.ts

@@ -0,0 +1,239 @@
+import { spawn } from "node:child_process";
+import { randomUUID } from "node:crypto";
+import { Readable, Writable } from "node:stream";
+import {
+  AgentSideConnection,
+  ndJsonStream,
+  PROTOCOL_VERSION,
+  type Agent,
+  type ContentBlock,
+  type InitializeRequest,
+  type InitializeResponse,
+  type LoadSessionRequest,
+  type LoadSessionResponse,
+  type NewSessionRequest,
+  type NewSessionResponse,
+  type PromptRequest,
+  type PromptResponse,
+  type ResumeSessionRequest,
+  type ResumeSessionResponse,
+} from "@agentclientprotocol/sdk";
+
+interface AntigravitySession {
+  cwd: string;
+  hasPrompted: boolean;
+}
+
+const DEFAULT_MODEL_ID = "default";
+const DEFAULT_MODE_ID = "default";
+
+function promptToText(blocks: ContentBlock[]): string {
+  return blocks
+    .map((block) => {
+      if (block.type === "text") {
+        return block.text;
+      }
+      if (block.type === "resource_link") {
+        return block.uri;
+      }
+      return "";
+    })
+    .filter((text) => text.length > 0)
+    .join("\n\n");
+}
+
+function runAgyPrompt(input: {
+  prompt: string;
+  cwd: string;
+  continueConversation: boolean;
+  signal: AbortSignal;
+}): Promise<string> {
+  const args = [
+    ...(input.continueConversation ? ["--continue"] : []),
+    "--print",
+    input.prompt,
+    "--print-timeout",
+    "5m",
+  ];
+
+  return new Promise((resolve, reject) => {
+    const child = spawn("agy", args, {
+      cwd: input.cwd,
+      env: {
+        ...process.env,
+        AGY_CLI_DISABLE_AUTO_UPDATE: "1",
+      },
+      stdio: ["ignore", "pipe", "pipe"],
+    });
+
+    let stdout = "";
+    let stderr = "";
+    const abort = () => {
+      child.kill("SIGTERM");
+    };
+    input.signal.addEventListener("abort", abort, { once: true });
+
+    child.stdout?.setEncoding("utf8");
+    child.stderr?.setEncoding("utf8");
+    child.stdout?.on("data", (chunk) => {
+      stdout += chunk;
+    });
+    child.stderr?.on("data", (chunk) => {
+      stderr += chunk;
+    });
+    child.on("error", (error) => {
+      input.signal.removeEventListener("abort", abort);
+      reject(error);
+    });
+    child.on("close", (code, signal) => {
+      input.signal.removeEventListener("abort", abort);
+      if (input.signal.aborted) {
+        resolve("");
+        return;
+      }
+      if (code === 0) {
+        resolve(stdout.trim());
+        return;
+      }
+      const details = stderr.trim() || stdout.trim() || `agy exited with ${signal ?? code}`;
+      reject(new Error(details));
+    });
+  });
+}
+
+class AntigravityACPAgent implements Agent {
+  private readonly sessions = new Map<string, AntigravitySession>();
+  private readonly pendingPrompts = new Map<string, AbortController>();
+
+  constructor(private readonly connection: AgentSideConnection) {}
+
+  async initialize(_params: InitializeRequest): Promise<InitializeResponse> {
+    return {
+      protocolVersion: PROTOCOL_VERSION,
+      agentInfo: {
+        name: "Paseo Antigravity ACP Adapter",
+        version: "1.0.0",
+      },
+      agentCapabilities: {
+        loadSession: true,
+        sessionCapabilities: {
+          resume: {},
+        },
+      },
+    };
+  }
+
+  async newSession(params: NewSessionRequest): Promise<NewSessionResponse> {
+    const sessionId = randomUUID();
+    this.sessions.set(sessionId, {
+      cwd: params.cwd,
+      hasPrompted: false,
+    });
+    return this.buildSessionResponse(sessionId);
+  }
+
+  async loadSession(params: LoadSessionRequest): Promise<LoadSessionResponse> {
+    this.sessions.set(params.sessionId, {
+      cwd: params.cwd,
+      hasPrompted: true,
+    });
+    return this.buildSessionState();
+  }
+
+  async unstable_resumeSession(params: ResumeSessionRequest): Promise<ResumeSessionResponse> {
+    this.sessions.set(params.sessionId, {
+      cwd: params.cwd,
+      hasPrompted: true,
+    });
+    return this.buildSessionState();
+  }
+
+  async prompt(params: PromptRequest): Promise<PromptResponse> {
+    const session = this.sessions.get(params.sessionId);
+    if (!session) {
+      throw new Error(`Unknown Antigravity session: ${params.sessionId}`);
+    }
+
+    const prompt = promptToText(params.prompt);
+    const abortController = new AbortController();
+    this.pendingPrompts.set(params.sessionId, abortController);
+
+    try {
+      const text = await runAgyPrompt({
+        prompt,
+        cwd: session.cwd,
+        continueConversation: session.hasPrompted,
+        signal: abortController.signal,
+      });
+      session.hasPrompted = true;
+      if (abortController.signal.aborted) {
+        return { stopReason: "cancelled" };
+      }
+
+      if (text.length > 0) {
+        await this.connection.sessionUpdate({
+          sessionId: params.sessionId,
+          update: {
+            sessionUpdate: "agent_message_chunk",
+            content: { type: "text", text },
+            messageId: randomUUID(),
+          },
+        });
+      }
+      return { stopReason: "end_turn" };
+    } finally {
+      this.pendingPrompts.delete(params.sessionId);
+    }
+  }
+
+  async authenticate(): Promise<Record<string, never>> {
+    return {};
+  }
+
+  async cancel(params: { sessionId: string }): Promise<void> {
+    this.pendingPrompts.get(params.sessionId)?.abort();
+  }
+
+  private buildSessionResponse(sessionId: string): NewSessionResponse {
+    return {
+      sessionId,
+      ...this.buildSessionState(),
+    };
+  }
+
+  private buildSessionState(): Omit<NewSessionResponse, "sessionId"> {
+    return {
+      models: {
+        currentModelId: DEFAULT_MODEL_ID,
+        availableModels: [
+          {
+            modelId: DEFAULT_MODEL_ID,
+            name: "Configured Antigravity model",
+            description: "Uses the model currently selected in Antigravity CLI.",
+          },
+        ],
+      },
+      modes: {
+        currentModeId: DEFAULT_MODE_ID,
+        availableModes: [
+          {
+            id: DEFAULT_MODE_ID,
+            name: "Default",
+            description: "Use Antigravity CLI's configured permissions and settings.",
+          },
+        ],
+      },
+    };
+  }
+}
+
+export function runAntigravityAcpAdapter(): void {
+  const input = Writable.toWeb(process.stdout);
+  const output = Readable.toWeb(process.stdin);
+  const stream = ndJsonStream(input, output);
+  const connection = new AgentSideConnection(
+    (agentConnection) => new AntigravityACPAgent(agentConnection),
+    stream,
+  );
+  void connection;
+}

packages/cli/src/commands/acp/index.ts

@@ -0,0 +1,15 @@
+import { Command } from "commander";
+import { runAntigravityAcpAdapter } from "./antigravity.js";
+
+export function createAcpCommand(): Command {
+  const command = new Command("acp").description("Run local ACP adapter commands");
+
+  command
+    .command("antigravity")
+    .description("Run an ACP adapter for the installed agy CLI")
+    .action(() => {
+      runAntigravityAcpAdapter();
+    });
+
+  return command;
+}