Files
paseo/packages/server/src/client/daemon-client.ts
2026-02-17 21:16:31 +07:00

2916 lines
86 KiB
TypeScript

import type { z } from "zod";
import {
AgentCreateFailedStatusPayloadSchema,
AgentCreatedStatusPayloadSchema,
AgentRefreshedStatusPayloadSchema,
AgentResumedStatusPayloadSchema,
RestartRequestedStatusPayloadSchema,
SessionInboundMessageSchema,
WSOutboundMessageSchema,
} from "../shared/messages.js";
import type {
AgentStreamEventPayload,
AgentSnapshotPayload,
AgentPermissionResolvedMessage,
CreateAgentRequestMessage,
FileDownloadTokenResponse,
FileExplorerResponse,
FetchAgentTimelineResponseMessage,
GitSetupOptions,
CheckoutStatusResponse,
CheckoutCommitResponse,
CheckoutMergeResponse,
CheckoutMergeFromBaseResponse,
CheckoutPushResponse,
CheckoutPrCreateResponse,
CheckoutPrStatusResponse,
ValidateBranchResponse,
BranchSuggestionsResponse,
DirectorySuggestionsResponse,
PaseoWorktreeListResponse,
PaseoWorktreeArchiveResponse,
ProjectIconResponse,
ListCommandsResponse,
ExecuteCommandResponse,
ListProviderModelsResponseMessage,
ListAvailableProvidersResponse,
SpeechModelsListResponse,
SpeechModelsDownloadResponse,
ListTerminalsResponse,
CreateTerminalResponse,
SubscribeTerminalResponse,
TerminalOutput,
KillTerminalResponse,
AttachTerminalStreamResponse,
DetachTerminalStreamResponse,
TerminalInput,
SessionInboundMessage,
SessionOutboundMessage,
} from "../shared/messages.js";
import type {
AgentPermissionRequest,
AgentPermissionResponse,
AgentPersistenceHandle,
AgentProvider,
AgentSessionConfig,
} from "../server/agent/agent-sdk-types.js";
import { getAgentProviderDefinition } from "../server/agent/provider-manifest.js";
import { isRelayClientWebSocketUrl } from "../shared/daemon-endpoints.js";
import {
asUint8Array,
decodeBinaryMuxFrame,
encodeBinaryMuxFrame,
BinaryMuxChannel,
TerminalBinaryFlags,
TerminalBinaryMessageType,
type BinaryMuxFrame,
} from "../shared/binary-mux.js";
import {
encodeTerminalKeyInput,
type TerminalKeyInput,
} from "../shared/terminal-key-input.js";
import {
TerminalStreamManager,
type TerminalStreamChunk,
} from "./daemon-client-terminal-stream-manager.js";
import {
createRelayE2eeTransportFactory,
createWebSocketTransportFactory,
decodeMessageData,
defaultWebSocketFactory,
describeTransportClose,
describeTransportError,
encodeUtf8String,
safeRandomId,
type DaemonTransport,
type DaemonTransportFactory,
type WebSocketFactory,
} from "./daemon-client-transport.js";
export interface Logger {
debug(obj: object, msg?: string): void;
info(obj: object, msg?: string): void;
warn(obj: object, msg?: string): void;
error(obj: object, msg?: string): void;
}
const consoleLogger: Logger = {
debug: (obj, msg) => console.debug(msg, obj),
info: (obj, msg) => console.info(msg, obj),
warn: (obj, msg) => console.warn(msg, obj),
error: (obj, msg) => console.error(msg, obj),
};
export type {
DaemonTransport,
DaemonTransportFactory,
WebSocketFactory,
WebSocketLike,
} from "./daemon-client-transport.js";
export type { TerminalStreamChunk } from "./daemon-client-terminal-stream-manager.js";
export type ConnectionState =
| { status: "idle" }
| { status: "connecting"; attempt: number }
| { status: "connected" }
| { status: "disconnected"; reason?: string };
export type DaemonEvent =
| {
type: "agent_update";
agentId: string;
payload: Extract<SessionOutboundMessage, { type: "agent_update" }>["payload"];
}
| {
type: "agent_stream";
agentId: string;
event: AgentStreamEventPayload;
timestamp: string;
seq?: number;
epoch?: string;
}
| { type: "status"; payload: { status: string } & Record<string, unknown> }
| { type: "agent_deleted"; agentId: string }
| {
type: "agent_permission_request";
agentId: string;
request: AgentPermissionRequest;
}
| {
type: "agent_permission_resolved";
agentId: string;
requestId: string;
resolution: AgentPermissionResponse;
}
| { type: "error"; message: string };
export type DaemonEventHandler = (event: DaemonEvent) => void;
export type DaemonClientConfig = {
url: string;
authHeader?: string;
suppressSendErrors?: boolean;
transportFactory?: DaemonTransportFactory;
webSocketFactory?: WebSocketFactory;
logger?: Logger;
e2ee?: {
enabled?: boolean;
daemonPublicKeyB64?: string;
};
reconnect?: {
enabled?: boolean;
baseDelayMs?: number;
maxDelayMs?: number;
};
};
export type SendMessageOptions = {
messageId?: string;
images?: Array<{ data: string; mimeType: string }>;
};
type AgentConfigOverrides = Partial<Omit<AgentSessionConfig, "provider" | "cwd">>;
export type CreateAgentRequestOptions = {
config?: AgentSessionConfig;
provider?: AgentProvider;
cwd?: string;
initialPrompt?: string;
outputSchema?: Record<string, unknown>;
images?: CreateAgentRequestMessage["images"];
git?: GitSetupOptions;
worktreeName?: string;
requestId?: string;
labels?: Record<string, string>;
} & AgentConfigOverrides;
type CheckoutStatusPayload = CheckoutStatusResponse["payload"];
type SubscribeCheckoutDiffPayload = Extract<
SessionOutboundMessage,
{ type: "subscribe_checkout_diff_response" }
>["payload"];
type CheckoutDiffPayload = Omit<SubscribeCheckoutDiffPayload, "subscriptionId">;
type CheckoutCommitPayload = CheckoutCommitResponse["payload"];
type CheckoutMergePayload = CheckoutMergeResponse["payload"];
type CheckoutMergeFromBasePayload = CheckoutMergeFromBaseResponse["payload"];
type CheckoutPushPayload = CheckoutPushResponse["payload"];
type CheckoutPrCreatePayload = CheckoutPrCreateResponse["payload"];
type CheckoutPrStatusPayload = CheckoutPrStatusResponse["payload"];
type ValidateBranchPayload = ValidateBranchResponse["payload"];
type BranchSuggestionsPayload = BranchSuggestionsResponse["payload"];
type DirectorySuggestionsPayload = DirectorySuggestionsResponse["payload"];
type PaseoWorktreeListPayload = PaseoWorktreeListResponse["payload"];
type PaseoWorktreeArchivePayload = PaseoWorktreeArchiveResponse["payload"];
type FileExplorerPayload = FileExplorerResponse["payload"];
type FileDownloadTokenPayload = FileDownloadTokenResponse["payload"];
type ListProviderModelsPayload = ListProviderModelsResponseMessage["payload"];
type ListAvailableProvidersPayload = ListAvailableProvidersResponse["payload"];
type SpeechModelsListPayload = SpeechModelsListResponse["payload"];
type SpeechModelsDownloadPayload = SpeechModelsDownloadResponse["payload"];
type ListCommandsPayload = ListCommandsResponse["payload"];
type ExecuteCommandPayload = ExecuteCommandResponse["payload"];
type SetVoiceModePayload = Extract<
SessionOutboundMessage,
{ type: "set_voice_mode_response" }
>["payload"];
type DictationFinishAcceptedPayload = Extract<
SessionOutboundMessage,
{ type: "dictation_stream_finish_accepted" }
>["payload"];
type AgentPermissionResolvedPayload = AgentPermissionResolvedMessage["payload"];
type ListTerminalsPayload = ListTerminalsResponse["payload"];
type CreateTerminalPayload = CreateTerminalResponse["payload"];
type SubscribeTerminalPayload = SubscribeTerminalResponse["payload"];
type TerminalOutputPayload = TerminalOutput["payload"];
type KillTerminalPayload = KillTerminalResponse["payload"];
type AttachTerminalStreamPayload = AttachTerminalStreamResponse["payload"];
type DetachTerminalStreamPayload = DetachTerminalStreamResponse["payload"];
export type FetchAgentTimelinePayload = FetchAgentTimelineResponseMessage["payload"];
export type FetchAgentTimelineDirection = FetchAgentTimelinePayload["direction"];
export type FetchAgentTimelineProjection = FetchAgentTimelinePayload["projection"];
export type FetchAgentTimelineCursor = NonNullable<
FetchAgentTimelinePayload["startCursor"]
>;
export type FetchAgentTimelineOptions = {
direction?: FetchAgentTimelineDirection;
cursor?: FetchAgentTimelineCursor;
limit?: number;
projection?: FetchAgentTimelineProjection;
requestId?: string;
};
type AgentRefreshedStatusPayload = z.infer<
typeof AgentRefreshedStatusPayloadSchema
>;
type RestartRequestedStatusPayload = z.infer<
typeof RestartRequestedStatusPayloadSchema
>;
type FetchAgentsPayload = Extract<
SessionOutboundMessage,
{ type: "fetch_agents_response" }
>["payload"];
type FetchAgentsRequest = Extract<
SessionInboundMessage,
{ type: "fetch_agents_request" }
>;
export type FetchAgentsOptions = Omit<FetchAgentsRequest, "type" | "requestId"> & {
requestId?: string;
};
export type FetchAgentsEntry = FetchAgentsPayload["entries"][number];
export type FetchAgentsPageInfo = FetchAgentsPayload["pageInfo"];
export type WaitForFinishResult = {
status: "idle" | "error" | "permission" | "timeout";
final: AgentSnapshotPayload | null;
error: string | null;
lastMessage: string | null;
};
type Waiter<T> = {
predicate: (msg: SessionOutboundMessage) => T | null;
resolve: (value: T) => void;
reject: (error: Error) => void;
timeoutHandle: ReturnType<typeof setTimeout> | null;
};
type WaitHandle<T> = {
promise: Promise<T>;
cancel: (error: Error) => void;
};
type RpcWaitResult<T> =
| { kind: "ok"; value: T }
| { kind: "error"; error: DaemonRpcError };
type CorrelatedResponseMessage = Extract<
SessionOutboundMessage,
{ payload: { requestId: string } }
>;
type CorrelatedResponseType = CorrelatedResponseMessage["type"];
type CorrelatedResponsePayload<TType extends CorrelatedResponseType> = Extract<
CorrelatedResponseMessage,
{ type: TType }
>["payload"];
class DaemonRpcError extends Error {
readonly requestId: string;
readonly requestType?: string;
readonly code?: string;
constructor(params: { requestId: string; error: string; requestType?: string; code?: string }) {
super(params.error);
this.name = "DaemonRpcError";
this.requestId = params.requestId;
this.requestType = params.requestType;
this.code = params.code;
}
}
const DEFAULT_RECONNECT_BASE_DELAY_MS = 1500;
const DEFAULT_RECONNECT_MAX_DELAY_MS = 30000;
/** Default timeout for waiting for connection before sending queued messages */
const DEFAULT_SEND_QUEUE_TIMEOUT_MS = 10000;
const DEFAULT_DICTATION_FINISH_ACCEPT_TIMEOUT_MS = 15000;
const DEFAULT_DICTATION_FINISH_FALLBACK_TIMEOUT_MS = 5 * 60 * 1000;
const DEFAULT_DICTATION_FINISH_TIMEOUT_GRACE_MS = 5000;
function isWaiterTimeoutError(error: unknown): boolean {
return (
error instanceof Error && error.message.startsWith("Timeout waiting for message")
);
}
interface PendingSend {
message: SessionInboundMessage;
resolve: () => void;
reject: (error: Error) => void;
timeoutHandle: ReturnType<typeof setTimeout>;
}
export class DaemonClient {
private transport: DaemonTransport | null = null;
private transportCleanup: Array<() => void> = [];
private rawMessageListeners: Set<(message: SessionOutboundMessage) => void> = new Set();
private messageHandlers: Map<
SessionOutboundMessage["type"],
Set<(message: SessionOutboundMessage) => void>
> = new Map();
private eventListeners: Set<DaemonEventHandler> = new Set();
private waiters: Set<Waiter<any>> = new Set();
private checkoutStatusInFlight: Map<string, Promise<CheckoutStatusPayload>> = new Map();
private connectionListeners: Set<(status: ConnectionState) => void> =
new Set();
private reconnectTimeout: ReturnType<typeof setTimeout> | null = null;
private pendingGenericTransportErrorTimeout: ReturnType<typeof setTimeout> | null = null;
private reconnectAttempt = 0;
private shouldReconnect = true;
private connectPromise: Promise<void> | null = null;
private connectResolve: (() => void) | null = null;
private connectReject: ((error: Error) => void) | null = null;
private lastErrorValue: string | null = null;
private connectionState: ConnectionState = { status: "idle" };
private checkoutDiffSubscriptions = new Map<
string,
{ cwd: string; compare: { mode: "uncommitted" | "base"; baseRef?: string } }
>();
private terminalDirectorySubscriptions = new Set<string>();
private logger: Logger;
private pendingSendQueue: PendingSend[] = [];
private relayClientId: string | null = null;
private terminalStreams: TerminalStreamManager;
constructor(private config: DaemonClientConfig) {
this.logger = config.logger ?? consoleLogger;
this.terminalStreams = new TerminalStreamManager({
sendAck: (ack) => {
this.sendBinaryFrame({
channel: BinaryMuxChannel.Terminal,
messageType: TerminalBinaryMessageType.Ack,
streamId: ack.streamId,
offset: ack.offset,
payload: new Uint8Array(0),
});
},
});
// Relay requires a clientId so the daemon can create an independent
// socket + E2EE channel per connected client. Generate one per DaemonClient
// instance (stable across reconnects in this tab/app session).
if (isRelayClientWebSocketUrl(this.config.url)) {
try {
const parsed = new URL(this.config.url);
if (!parsed.searchParams.get("clientId")) {
this.relayClientId = `clt_${safeRandomId()}`;
parsed.searchParams.set("clientId", this.relayClientId);
this.config.url = parsed.toString();
}
} catch {
// ignore - invalid URL will be handled on connect
}
}
}
// ============================================================================
// Connection
// ============================================================================
async connect(): Promise<void> {
if (this.connectionState.status === "connected") {
return;
}
if (this.connectPromise) {
return this.connectPromise;
}
this.shouldReconnect = true;
this.connectPromise = new Promise((resolve, reject) => {
this.connectResolve = resolve;
this.connectReject = reject;
this.attemptConnect();
});
return this.connectPromise;
}
private attemptConnect(): void {
if (!this.shouldReconnect) {
this.rejectConnect(new Error("Daemon client is closed"));
return;
}
if (this.connectionState.status === "connecting") {
return;
}
const headers: Record<string, string> = {};
if (this.config.authHeader) {
headers["Authorization"] = this.config.authHeader;
}
try {
// If we reconnect while the previous socket is still open (common in browsers
// where `onerror` may fire before `onclose`), we can end up with multiple
// concurrent relay sockets. Cloudflare then closes the old one with
// "Replaced by new connection", causing a disconnect loop.
this.disposeTransport();
const baseTransportFactory =
this.config.transportFactory ??
createWebSocketTransportFactory(
this.config.webSocketFactory ?? defaultWebSocketFactory
);
const shouldUseRelayE2ee =
this.config.e2ee?.enabled === true &&
isRelayClientWebSocketUrl(this.config.url);
let transportFactory = baseTransportFactory;
if (shouldUseRelayE2ee) {
const daemonPublicKeyB64 = this.config.e2ee?.daemonPublicKeyB64;
if (!daemonPublicKeyB64) {
throw new Error("daemonPublicKeyB64 is required for relay E2EE");
}
transportFactory = createRelayE2eeTransportFactory({
baseFactory: baseTransportFactory,
daemonPublicKeyB64,
logger: this.logger,
});
}
const transport = transportFactory({ url: this.config.url, headers });
this.transport = transport;
this.updateConnectionState({
status: "connecting",
attempt: this.reconnectAttempt,
});
this.transportCleanup = [
transport.onOpen(() => {
if (this.pendingGenericTransportErrorTimeout) {
clearTimeout(this.pendingGenericTransportErrorTimeout);
this.pendingGenericTransportErrorTimeout = null;
}
this.lastErrorValue = null;
this.reconnectAttempt = 0;
this.updateConnectionState({ status: "connected" });
this.resubscribeCheckoutDiffSubscriptions();
this.resubscribeTerminalDirectorySubscriptions();
this.flushPendingSendQueue();
this.resolveConnect();
}),
transport.onClose((event) => {
if (this.pendingGenericTransportErrorTimeout) {
clearTimeout(this.pendingGenericTransportErrorTimeout);
this.pendingGenericTransportErrorTimeout = null;
}
const closeRecord = event as { code?: unknown; reason?: unknown } | null;
const closeCode =
closeRecord && typeof closeRecord === "object" && typeof closeRecord.code === "number"
? closeRecord.code
: null;
const closeReason =
closeRecord && typeof closeRecord === "object" && typeof closeRecord.reason === "string"
? closeRecord.reason
: null;
const reason = describeTransportClose(event);
if (reason) {
this.lastErrorValue = reason;
}
this.updateConnectionState({
status: "disconnected",
...(reason ? { reason } : {}),
});
// When connecting over the relay, only one client connection is allowed at a time.
// If another device/tab takes over, we should not auto-reconnect and "fight" the new
// connection (which causes flapping where both sides repeatedly replace each other).
if (
isRelayClientWebSocketUrl(this.config.url) &&
closeCode === 1008 &&
(closeReason ?? reason) === "Replaced by new connection"
) {
this.shouldReconnect = false;
this.clearWaiters(new Error(reason ?? "Replaced by new connection"));
this.rejectPendingSendQueue(new Error(reason ?? "Replaced by new connection"));
this.rejectConnect(new Error(reason ?? "Replaced by new connection"));
return;
}
this.scheduleReconnect(reason);
}),
transport.onError((event) => {
const reason = describeTransportError(event);
const isGeneric = reason === "Transport error";
// Browser WebSocket.onerror often provides no useful details and is followed
// by a close event (often with code 1006). Prefer surfacing the close details
// instead of immediately disconnecting with a generic "Transport error".
if (isGeneric) {
this.lastErrorValue ??= reason;
if (!this.pendingGenericTransportErrorTimeout) {
this.pendingGenericTransportErrorTimeout = setTimeout(() => {
this.pendingGenericTransportErrorTimeout = null;
if (
this.connectionState.status === "connected" ||
this.connectionState.status === "connecting"
) {
this.lastErrorValue = reason;
this.updateConnectionState({ status: "disconnected", reason });
this.scheduleReconnect(reason);
}
}, 250);
}
return;
}
if (this.pendingGenericTransportErrorTimeout) {
clearTimeout(this.pendingGenericTransportErrorTimeout);
this.pendingGenericTransportErrorTimeout = null;
}
this.lastErrorValue = reason;
this.updateConnectionState({ status: "disconnected", reason });
this.scheduleReconnect(reason);
}),
transport.onMessage((data) => this.handleTransportMessage(data)),
];
} catch (error) {
const message =
error instanceof Error ? error.message : "Failed to connect";
this.lastErrorValue = message;
this.scheduleReconnect(message);
this.rejectConnect(error instanceof Error ? error : new Error(message));
}
}
private resolveConnect(): void {
if (this.connectResolve) {
this.connectResolve();
}
this.connectPromise = null;
this.connectResolve = null;
this.connectReject = null;
}
private rejectConnect(error: Error): void {
if (this.connectReject) {
this.connectReject(error);
}
this.connectPromise = null;
this.connectResolve = null;
this.connectReject = null;
}
async close(): Promise<void> {
this.shouldReconnect = false;
this.connectPromise = null;
this.connectResolve = null;
this.connectReject = null;
if (this.reconnectTimeout) {
clearTimeout(this.reconnectTimeout);
this.reconnectTimeout = null;
}
this.disposeTransport(1000, "Client closed");
this.clearWaiters(new Error("Daemon client closed"));
this.terminalStreams.clearAll();
this.updateConnectionState({
status: "disconnected",
reason: "client_closed",
});
}
ensureConnected(): void {
if (!this.shouldReconnect) {
this.shouldReconnect = true;
}
if (
this.connectionState.status === "connected" ||
this.connectionState.status === "connecting"
) {
return;
}
void this.connect();
}
getConnectionState(): ConnectionState {
return this.connectionState;
}
subscribeConnectionStatus(
listener: (status: ConnectionState) => void
): () => void {
this.connectionListeners.add(listener);
listener(this.connectionState);
return () => {
this.connectionListeners.delete(listener);
};
}
get isConnected(): boolean {
return this.connectionState.status === "connected";
}
get isConnecting(): boolean {
return this.connectionState.status === "connecting";
}
get lastError(): string | null {
return this.lastErrorValue;
}
// ============================================================================
// Message Subscription
// ============================================================================
subscribe(handler: DaemonEventHandler): () => void {
this.eventListeners.add(handler);
return () => this.eventListeners.delete(handler);
}
subscribeRawMessages(handler: (message: SessionOutboundMessage) => void): () => void {
this.rawMessageListeners.add(handler);
return () => {
this.rawMessageListeners.delete(handler);
};
}
on(type: SessionOutboundMessage["type"], handler: (message: SessionOutboundMessage) => void): () => void;
on(handler: DaemonEventHandler): () => void;
on(
arg1: SessionOutboundMessage["type"] | DaemonEventHandler,
arg2?: (message: SessionOutboundMessage) => void
): () => void {
if (typeof arg1 === "function") {
return this.subscribe(arg1);
}
const type = arg1 as SessionOutboundMessage["type"];
const handler = arg2 as (message: SessionOutboundMessage) => void;
if (!this.messageHandlers.has(type)) {
this.messageHandlers.set(type, new Set());
}
this.messageHandlers.get(type)!.add(handler);
return () => {
const handlers = this.messageHandlers.get(type);
if (!handlers) {
return;
}
handlers.delete(handler);
if (handlers.size === 0) {
this.messageHandlers.delete(type);
}
};
}
// ============================================================================
// Core Send Helpers
// ============================================================================
/**
* Send a session message. For fire-and-forget messages (heartbeats, etc.),
* failures are suppressed if `suppressSendErrors` is configured.
* For RPC methods that wait for responses, use `sendSessionMessageOrThrow` instead.
*/
private sendSessionMessage(message: SessionInboundMessage): void {
if (!this.transport || this.connectionState.status !== "connected") {
if (this.config.suppressSendErrors) {
return;
}
throw new Error(`Transport not connected (status: ${this.connectionState.status})`);
}
const payload = SessionInboundMessageSchema.parse(message);
try {
this.transport.send(JSON.stringify({ type: "session", message: payload }));
} catch (error) {
if (this.config.suppressSendErrors) {
return;
}
throw error instanceof Error ? error : new Error(String(error));
}
}
private sendBinaryFrame(frame: BinaryMuxFrame): void {
if (!this.transport || this.connectionState.status !== "connected") {
if (this.config.suppressSendErrors) {
return;
}
throw new Error(`Transport not connected (status: ${this.connectionState.status})`);
}
try {
this.transport.send(encodeBinaryMuxFrame(frame));
} catch (error) {
if (this.config.suppressSendErrors) {
return;
}
throw error instanceof Error ? error : new Error(String(error));
}
}
/**
* Send a session message for RPC methods that create waiters.
* If the connection is still being established ("connecting"), the message
* is queued and will be sent once connected (or rejected after timeout).
* This prevents waiters from hanging forever when called during connection.
*/
private sendSessionMessageOrThrow(message: SessionInboundMessage): Promise<void> {
const status = this.connectionState.status;
// If connected, send immediately
if (this.transport && status === "connected") {
const payload = SessionInboundMessageSchema.parse(message);
this.transport.send(JSON.stringify({ type: "session", message: payload }));
return Promise.resolve();
}
// If connecting, queue the message to be sent once connected
if (status === "connecting") {
return new Promise((resolve, reject) => {
const timeoutHandle = setTimeout(() => {
// Remove from queue
const idx = this.pendingSendQueue.findIndex((p) => p.resolve === resolve);
if (idx !== -1) {
this.pendingSendQueue.splice(idx, 1);
}
reject(new Error(`Timed out waiting for connection to send message`));
}, DEFAULT_SEND_QUEUE_TIMEOUT_MS);
this.pendingSendQueue.push({ message, resolve, reject, timeoutHandle });
});
}
// Not connected and not connecting - fail immediately
return Promise.reject(new Error(`Transport not connected (status: ${status})`));
}
/**
* Flush pending send queue - called when connection is established.
*/
private flushPendingSendQueue(): void {
const queue = this.pendingSendQueue;
this.pendingSendQueue = [];
for (const pending of queue) {
clearTimeout(pending.timeoutHandle);
try {
if (this.transport && this.connectionState.status === "connected") {
const payload = SessionInboundMessageSchema.parse(pending.message);
this.transport.send(JSON.stringify({ type: "session", message: payload }));
pending.resolve();
} else {
pending.reject(new Error("Connection lost before message could be sent"));
}
} catch (error) {
pending.reject(error instanceof Error ? error : new Error(String(error)));
}
}
}
/**
* Reject all pending sends - called when connection fails or is closed.
*/
private rejectPendingSendQueue(error: Error): void {
const queue = this.pendingSendQueue;
this.pendingSendQueue = [];
for (const pending of queue) {
clearTimeout(pending.timeoutHandle);
pending.reject(error);
}
}
private async sendRequest<T>(
params: {
requestId: string;
message: SessionInboundMessage;
timeout: number;
select: (msg: SessionOutboundMessage) => T | null;
options?: { skipQueue?: boolean };
}
): Promise<T> {
const { promise, cancel } = this.waitForWithCancel<RpcWaitResult<T>>(
(msg) => {
if (msg.type === "rpc_error" && msg.payload.requestId === params.requestId) {
return {
kind: "error",
error: new DaemonRpcError({
requestId: msg.payload.requestId,
error: msg.payload.error,
requestType: msg.payload.requestType,
code: msg.payload.code,
}),
};
}
const value = params.select(msg);
if (value === null) {
return null;
}
return { kind: "ok", value };
},
params.timeout,
params.options
);
try {
await this.sendSessionMessageOrThrow(params.message);
} catch (error) {
const err = error instanceof Error ? error : new Error(String(error));
cancel(err);
void promise.catch(() => undefined);
throw err;
}
const result = await promise;
if (result.kind === "error") {
throw result.error;
}
return result.value;
}
private async sendCorrelatedRequest<
TResponseType extends CorrelatedResponseType,
TResult = CorrelatedResponsePayload<TResponseType>,
>(
params: {
requestId: string;
message: SessionInboundMessage;
timeout: number;
responseType: TResponseType;
options?: { skipQueue?: boolean };
selectPayload?: (payload: CorrelatedResponsePayload<TResponseType>) => TResult | null;
}
): Promise<TResult> {
return this.sendRequest({
requestId: params.requestId,
message: params.message,
timeout: params.timeout,
options: params.options,
select: (msg) => {
const correlated = msg as CorrelatedResponseMessage;
if (correlated.type !== params.responseType) {
return null;
}
const payload =
correlated.payload as unknown as CorrelatedResponsePayload<TResponseType>;
if (payload.requestId !== params.requestId) {
return null;
}
if (!params.selectPayload) {
return payload as TResult;
}
return params.selectPayload(payload);
},
});
}
private sendCorrelatedSessionRequest<
TResponseType extends CorrelatedResponseType,
TResult = CorrelatedResponsePayload<TResponseType>,
>(
params: {
requestId?: string;
message: { type: SessionInboundMessage["type"] } & Record<string, unknown>;
responseType: TResponseType;
timeout: number;
selectPayload?: (payload: CorrelatedResponsePayload<TResponseType>) => TResult | null;
}
): Promise<TResult> {
const resolvedRequestId = this.createRequestId(params.requestId);
const message = SessionInboundMessageSchema.parse({
...params.message,
requestId: resolvedRequestId,
});
return this.sendCorrelatedRequest({
requestId: resolvedRequestId,
message,
responseType: params.responseType,
timeout: params.timeout,
options: { skipQueue: true },
...(params.selectPayload ? { selectPayload: params.selectPayload } : {}),
});
}
private sendSessionMessageStrict(message: SessionInboundMessage): void {
if (!this.transport || this.connectionState.status !== "connected") {
throw new Error("Transport not connected");
}
const payload = SessionInboundMessageSchema.parse(message);
try {
this.transport.send(JSON.stringify({ type: "session", message: payload }));
} catch (error) {
throw error instanceof Error ? error : new Error(String(error));
}
}
clearAgentAttention(agentId: string | string[]): void {
this.sendSessionMessage({ type: "clear_agent_attention", agentId });
}
sendHeartbeat(params: {
deviceType: "web" | "mobile";
focusedAgentId: string | null;
lastActivityAt: string;
appVisible: boolean;
appVisibilityChangedAt?: string;
}): void {
this.sendSessionMessage({
type: "client_heartbeat",
deviceType: params.deviceType,
focusedAgentId: params.focusedAgentId,
lastActivityAt: params.lastActivityAt,
appVisible: params.appVisible,
appVisibilityChangedAt: params.appVisibilityChangedAt,
});
}
registerPushToken(token: string): void {
this.sendSessionMessage({
type: "register_push_token",
token,
});
}
async ping(params?: { requestId?: string; timeoutMs?: number }): Promise<{
requestId: string;
clientSentAt: number;
serverReceivedAt: number;
serverSentAt: number;
rttMs: number;
}> {
const requestId =
params?.requestId ??
`ping-${Date.now()}-${Math.random().toString(36).slice(2)}`;
const clientSentAt = Date.now();
const payload = await this.sendRequest({
requestId,
message: { type: "ping", requestId, clientSentAt },
timeout: params?.timeoutMs ?? 5000,
select: (msg) => {
if (msg.type !== "pong") return null;
if (msg.payload.requestId !== requestId) return null;
if (typeof msg.payload.serverReceivedAt !== "number") return null;
if (typeof msg.payload.serverSentAt !== "number") return null;
return msg.payload;
},
});
return {
requestId,
clientSentAt,
serverReceivedAt: payload.serverReceivedAt,
serverSentAt: payload.serverSentAt,
rttMs: Date.now() - clientSentAt,
};
}
// ============================================================================
// Agent RPCs (requestId-correlated)
// ============================================================================
async fetchAgents(options?: FetchAgentsOptions): Promise<FetchAgentsPayload> {
const resolvedRequestId = this.createRequestId(options?.requestId);
const message = SessionInboundMessageSchema.parse({
type: "fetch_agents_request",
requestId: resolvedRequestId,
...(options?.filter ? { filter: options.filter } : {}),
...(options?.sort ? { sort: options.sort } : {}),
...(options?.page ? { page: options.page } : {}),
...(options?.subscribe ? { subscribe: options.subscribe } : {}),
});
return this.sendRequest({
requestId: resolvedRequestId,
message,
timeout: 10000,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "fetch_agents_response") {
return null;
}
if (msg.payload.requestId !== resolvedRequestId) {
return null;
}
return msg.payload;
},
});
}
async fetchAgent(agentId: string, requestId?: string): Promise<AgentSnapshotPayload | null> {
const resolvedRequestId = this.createRequestId(requestId);
const message = SessionInboundMessageSchema.parse({
type: "fetch_agent_request",
requestId: resolvedRequestId,
agentId,
});
const payload = await this.sendRequest({
requestId: resolvedRequestId,
message,
timeout: 10000,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "fetch_agent_response") {
return null;
}
if (msg.payload.requestId !== resolvedRequestId) {
return null;
}
return msg.payload;
},
});
if (payload.error) {
throw new Error(payload.error);
}
return payload.agent;
}
private resubscribeCheckoutDiffSubscriptions(): void {
if (this.checkoutDiffSubscriptions.size === 0) {
return;
}
for (const [subscriptionId, subscription] of this.checkoutDiffSubscriptions) {
const message = SessionInboundMessageSchema.parse({
type: "subscribe_checkout_diff_request",
subscriptionId,
cwd: subscription.cwd,
compare: subscription.compare,
requestId: this.createRequestId(),
});
this.sendSessionMessage(message);
}
}
private resubscribeTerminalDirectorySubscriptions(): void {
if (this.terminalDirectorySubscriptions.size === 0) {
return;
}
for (const cwd of this.terminalDirectorySubscriptions) {
this.sendSessionMessage({
type: "subscribe_terminals_request",
cwd,
});
}
}
// ============================================================================
// Agent Lifecycle
// ============================================================================
async createAgent(options: CreateAgentRequestOptions): Promise<AgentSnapshotPayload> {
const requestId = this.createRequestId(options.requestId);
const config = resolveAgentConfig(options);
const message = SessionInboundMessageSchema.parse({
type: "create_agent_request",
requestId,
config,
...(options.initialPrompt ? { initialPrompt: options.initialPrompt } : {}),
...(options.outputSchema ? { outputSchema: options.outputSchema } : {}),
...(options.images && options.images.length > 0
? { images: options.images }
: {}),
...(options.git ? { git: options.git } : {}),
...(options.worktreeName ? { worktreeName: options.worktreeName } : {}),
...(options.labels && Object.keys(options.labels).length > 0
? { labels: options.labels }
: {}),
});
const status = await this.sendRequest({
requestId,
message,
timeout: 15000,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "status") {
return null;
}
const created = AgentCreatedStatusPayloadSchema.safeParse(msg.payload);
if (created.success && created.data.requestId === requestId) {
return created.data;
}
const failed = AgentCreateFailedStatusPayloadSchema.safeParse(msg.payload);
if (failed.success && failed.data.requestId === requestId) {
return failed.data;
}
return null;
},
});
if (status.status === "agent_create_failed") {
throw new Error(status.error);
}
return status.agent;
}
async deleteAgent(agentId: string): Promise<void> {
const requestId = this.createRequestId();
const message = SessionInboundMessageSchema.parse({
type: "delete_agent_request",
agentId,
requestId,
});
await this.sendRequest({
requestId,
message,
timeout: 10000,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "agent_deleted") {
return null;
}
if (msg.payload.requestId !== requestId) {
return null;
}
return msg.payload;
},
});
}
async archiveAgent(agentId: string): Promise<{ archivedAt: string }> {
const requestId = this.createRequestId();
const message = SessionInboundMessageSchema.parse({
type: "archive_agent_request",
agentId,
requestId,
});
const result = await this.sendRequest({
requestId,
message,
timeout: 10000,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "agent_archived") {
return null;
}
if (msg.payload.requestId !== requestId) {
return null;
}
return msg.payload;
},
});
return { archivedAt: result.archivedAt };
}
async updateAgent(
agentId: string,
updates: { name?: string; labels?: Record<string, string> }
): Promise<void> {
const requestId = this.createRequestId();
const message = SessionInboundMessageSchema.parse({
type: "update_agent_request",
agentId,
...(updates.name !== undefined ? { name: updates.name } : {}),
...(updates.labels && Object.keys(updates.labels).length > 0
? { labels: updates.labels }
: {}),
requestId,
});
const payload = await this.sendRequest({
requestId,
message,
timeout: 10000,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "update_agent_response") {
return null;
}
if (msg.payload.requestId !== requestId) {
return null;
}
return msg.payload;
},
});
if (!payload.accepted) {
throw new Error(payload.error ?? "updateAgent rejected");
}
}
async resumeAgent(
handle: AgentPersistenceHandle,
overrides?: Partial<AgentSessionConfig>
): Promise<AgentSnapshotPayload> {
const requestId = this.createRequestId();
const message = SessionInboundMessageSchema.parse({
type: "resume_agent_request",
requestId,
handle,
...(overrides ? { overrides } : {}),
});
const status = await this.sendRequest({
requestId,
message,
timeout: 15000,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "status") {
return null;
}
const resumed = AgentResumedStatusPayloadSchema.safeParse(msg.payload);
if (resumed.success && resumed.data.requestId === requestId) {
return resumed.data;
}
return null;
},
});
return status.agent;
}
async refreshAgent(
agentId: string,
requestId?: string
): Promise<AgentRefreshedStatusPayload> {
const resolvedRequestId = this.createRequestId(requestId);
const message = SessionInboundMessageSchema.parse({
type: "refresh_agent_request",
agentId,
requestId: resolvedRequestId,
});
return this.sendRequest({
requestId: resolvedRequestId,
message,
timeout: 15000,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "status") {
return null;
}
const refreshed = AgentRefreshedStatusPayloadSchema.safeParse(msg.payload);
if (refreshed.success && refreshed.data.requestId === resolvedRequestId) {
return refreshed.data;
}
return null;
},
});
}
async fetchAgentTimeline(
agentId: string,
options: FetchAgentTimelineOptions = {}
): Promise<FetchAgentTimelinePayload> {
const resolvedRequestId = this.createRequestId(options.requestId);
const message = SessionInboundMessageSchema.parse({
type: "fetch_agent_timeline_request",
agentId,
requestId: resolvedRequestId,
...(options.direction ? { direction: options.direction } : {}),
...(options.cursor ? { cursor: options.cursor } : {}),
...(typeof options.limit === "number" ? { limit: options.limit } : {}),
...(options.projection ? { projection: options.projection } : {}),
});
const payload = await this.sendRequest({
requestId: resolvedRequestId,
message,
timeout: 15000,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "fetch_agent_timeline_response") {
return null;
}
if (msg.payload.requestId !== resolvedRequestId) {
return null;
}
return msg.payload;
},
});
if (payload.error) {
throw new Error(payload.error);
}
return payload;
}
// ============================================================================
// Agent Interaction
// ============================================================================
async sendAgentMessage(
agentId: string,
text: string,
options?: SendMessageOptions
): Promise<void> {
const requestId = this.createRequestId();
const messageId = options?.messageId ?? crypto.randomUUID();
const message = SessionInboundMessageSchema.parse({
type: "send_agent_message_request",
requestId,
agentId,
text,
...(messageId ? { messageId } : {}),
...(options?.images ? { images: options.images } : {}),
});
const payload = await this.sendRequest({
requestId,
message,
timeout: 15000,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "send_agent_message_response") {
return null;
}
if (msg.payload.requestId !== requestId) {
return null;
}
return msg.payload;
},
});
if (!payload.accepted) {
throw new Error(payload.error ?? "sendAgentMessage rejected");
}
}
async sendMessage(
agentId: string,
text: string,
options?: SendMessageOptions
): Promise<void> {
await this.sendAgentMessage(agentId, text, options);
}
async cancelAgent(agentId: string): Promise<void> {
this.sendSessionMessage({ type: "cancel_agent_request", agentId });
}
async setAgentMode(agentId: string, modeId: string): Promise<void> {
const requestId = this.createRequestId();
const message = SessionInboundMessageSchema.parse({
type: "set_agent_mode_request",
agentId,
modeId,
requestId,
});
const payload = await this.sendRequest({
requestId,
message,
timeout: 15000,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "set_agent_mode_response") {
return null;
}
if (msg.payload.requestId !== requestId) {
return null;
}
return msg.payload;
},
});
if (!payload.accepted) {
throw new Error(payload.error ?? "setAgentMode rejected");
}
}
async setAgentModel(agentId: string, modelId: string | null): Promise<void> {
const requestId = this.createRequestId();
const message = SessionInboundMessageSchema.parse({
type: "set_agent_model_request",
agentId,
modelId,
requestId,
});
const payload = await this.sendRequest({
requestId,
message,
timeout: 15000,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "set_agent_model_response") {
return null;
}
if (msg.payload.requestId !== requestId) {
return null;
}
return msg.payload;
},
});
if (!payload.accepted) {
throw new Error(payload.error ?? "setAgentModel rejected");
}
}
async setAgentThinkingOption(
agentId: string,
thinkingOptionId: string | null
): Promise<void> {
const requestId = this.createRequestId();
const message = SessionInboundMessageSchema.parse({
type: "set_agent_thinking_request",
agentId,
thinkingOptionId,
requestId,
});
const payload = await this.sendRequest({
requestId,
message,
timeout: 15000,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "set_agent_thinking_response") {
return null;
}
if (msg.payload.requestId !== requestId) {
return null;
}
return msg.payload;
},
});
if (!payload.accepted) {
throw new Error(payload.error ?? "setAgentThinkingOption rejected");
}
}
async restartServer(
reason?: string,
requestId?: string
): Promise<RestartRequestedStatusPayload> {
const resolvedRequestId = this.createRequestId(requestId);
const message = SessionInboundMessageSchema.parse({
type: "restart_server_request",
...(reason && reason.trim().length > 0 ? { reason } : {}),
requestId: resolvedRequestId,
});
return this.sendRequest({
requestId: resolvedRequestId,
message,
timeout: 10000,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "status") {
return null;
}
const restarted = RestartRequestedStatusPayloadSchema.safeParse(
msg.payload
);
if (!restarted.success) {
return null;
}
if (restarted.data.requestId !== resolvedRequestId) {
return null;
}
return restarted.data;
},
});
}
// ============================================================================
// Audio / Voice
// ============================================================================
async setVoiceMode(
enabled: boolean,
agentId?: string
): Promise<SetVoiceModePayload> {
const requestId = this.createRequestId();
const message = SessionInboundMessageSchema.parse({
type: "set_voice_mode",
enabled,
...(agentId ? { agentId } : {}),
requestId,
});
const response = await this.sendRequest({
requestId,
message,
timeout: 10000,
select: (msg) => {
if (msg.type !== "set_voice_mode_response") {
return null;
}
if (msg.payload.requestId !== requestId) {
return null;
}
return msg.payload;
},
});
if (!response.accepted) {
const codeSuffix =
typeof response.reasonCode === "string" && response.reasonCode.trim().length > 0
? ` (${response.reasonCode})`
: "";
throw new Error((response.error ?? "Failed to set voice mode") + codeSuffix);
}
return response;
}
async sendVoiceAudioChunk(
audio: string,
format: string,
isLast: boolean
): Promise<void> {
this.sendSessionMessage({ type: "voice_audio_chunk", audio, format, isLast });
}
async startDictationStream(dictationId: string, format: string): Promise<void> {
const ack = this.waitForWithCancel(
(msg) => {
if (msg.type !== "dictation_stream_ack") {
return null;
}
if (msg.payload.dictationId !== dictationId) {
return null;
}
if (msg.payload.ackSeq !== -1) {
return null;
}
return msg.payload;
},
30000,
{ skipQueue: true }
);
const ackPromise = ack.promise.then(() => undefined);
const streamError = this.waitForWithCancel(
(msg) => {
if (msg.type !== "dictation_stream_error") {
return null;
}
if (msg.payload.dictationId !== dictationId) {
return null;
}
return msg.payload;
},
30000,
{ skipQueue: true }
);
const errorPromise = streamError.promise.then((payload) => {
throw new Error(payload.error);
});
const cleanupError = new Error("Cancelled dictation start waiter");
try {
this.sendSessionMessageStrict({ type: "dictation_stream_start", dictationId, format });
await Promise.race([ackPromise, errorPromise]);
} finally {
ack.cancel(cleanupError);
streamError.cancel(cleanupError);
void ackPromise.catch(() => undefined);
void errorPromise.catch(() => undefined);
}
}
sendDictationStreamChunk(dictationId: string, seq: number, audio: string, format: string): void {
this.sendSessionMessageStrict({ type: "dictation_stream_chunk", dictationId, seq, audio, format });
}
async finishDictationStream(
dictationId: string,
finalSeq: number
): Promise<{ dictationId: string; text: string }> {
const final = this.waitForWithCancel(
(msg) => {
if (msg.type !== "dictation_stream_final") {
return null;
}
if (msg.payload.dictationId !== dictationId) {
return null;
}
return msg.payload;
},
0,
{ skipQueue: true }
);
const streamError = this.waitForWithCancel(
(msg) => {
if (msg.type !== "dictation_stream_error") {
return null;
}
if (msg.payload.dictationId !== dictationId) {
return null;
}
return msg.payload;
},
0,
{ skipQueue: true }
);
const finishAccepted = this.waitForWithCancel<DictationFinishAcceptedPayload>(
(msg) => {
if (msg.type !== "dictation_stream_finish_accepted") {
return null;
}
if (msg.payload.dictationId !== dictationId) {
return null;
}
return msg.payload;
},
DEFAULT_DICTATION_FINISH_ACCEPT_TIMEOUT_MS,
{ skipQueue: true }
);
const finalPromise = final.promise;
const errorPromise = streamError.promise.then((payload) => {
throw new Error(payload.error);
});
const finishAcceptedPromise = finishAccepted.promise;
const finalOutcomePromise = finalPromise.then((payload) => ({
kind: "final" as const,
payload,
}));
const errorOutcomePromise = errorPromise.then(
() => ({
kind: "error" as const,
error: new Error("Unexpected dictation stream error state"),
}),
(error) => ({
kind: "error" as const,
error: error instanceof Error ? error : new Error(String(error)),
})
);
const finishAcceptedOutcomePromise = finishAcceptedPromise.then(
(payload) => ({ kind: "accepted" as const, payload }),
(error) => {
if (isWaiterTimeoutError(error)) {
return { kind: "accepted_timeout" as const };
}
return {
kind: "accepted_error" as const,
error: error instanceof Error ? error : new Error(String(error)),
};
}
);
const waitForFinalResult = async (
timeoutMs: number
): Promise<{ dictationId: string; text: string }> => {
if (!Number.isFinite(timeoutMs) || timeoutMs <= 0) {
const outcome = await Promise.race([finalOutcomePromise, errorOutcomePromise]);
if (outcome.kind === "error") {
throw outcome.error;
}
return outcome.payload;
}
let timeoutHandle: ReturnType<typeof setTimeout> | null = null;
const timeoutPromise = new Promise<{ kind: "timeout" }>((resolve) => {
timeoutHandle = setTimeout(() => resolve({ kind: "timeout" }), timeoutMs);
});
const outcome = await Promise.race([
finalOutcomePromise,
errorOutcomePromise,
timeoutPromise,
]);
if (timeoutHandle) {
clearTimeout(timeoutHandle);
}
if (outcome.kind === "timeout") {
throw new Error(`Timeout waiting for dictation finalization (${timeoutMs}ms)`);
}
if (outcome.kind === "error") {
throw outcome.error;
}
return outcome.payload;
};
const cleanupError = new Error("Cancelled dictation finish waiter");
try {
this.sendSessionMessageStrict({ type: "dictation_stream_finish", dictationId, finalSeq });
const firstOutcome = await Promise.race([
finalOutcomePromise,
errorOutcomePromise,
finishAcceptedOutcomePromise,
]);
if (firstOutcome.kind === "final") {
return firstOutcome.payload;
}
if (firstOutcome.kind === "error") {
throw firstOutcome.error;
}
if (firstOutcome.kind === "accepted") {
return await waitForFinalResult(
firstOutcome.payload.timeoutMs + DEFAULT_DICTATION_FINISH_TIMEOUT_GRACE_MS
);
}
return await waitForFinalResult(DEFAULT_DICTATION_FINISH_FALLBACK_TIMEOUT_MS);
} finally {
final.cancel(cleanupError);
streamError.cancel(cleanupError);
finishAccepted.cancel(cleanupError);
void finalPromise.catch(() => undefined);
void errorPromise.catch(() => undefined);
void finishAcceptedPromise.catch(() => undefined);
}
}
cancelDictationStream(dictationId: string): void {
this.sendSessionMessageStrict({ type: "dictation_stream_cancel", dictationId });
}
async abortRequest(): Promise<void> {
this.sendSessionMessage({ type: "abort_request" });
}
async audioPlayed(id: string): Promise<void> {
this.sendSessionMessage({ type: "audio_played", id });
}
// ============================================================================
// Git Operations
// ============================================================================
async getCheckoutStatus(
cwd: string,
options?: { requestId?: string }
): Promise<CheckoutStatusPayload> {
const requestId = options?.requestId;
if (!requestId) {
const existing = this.checkoutStatusInFlight.get(cwd);
if (existing) {
return existing;
}
}
const resolvedRequestId = this.createRequestId(requestId);
const message = SessionInboundMessageSchema.parse({
type: "checkout_status_request",
cwd,
requestId: resolvedRequestId,
});
const responsePromise = this.sendRequest({
requestId: resolvedRequestId,
message,
timeout: 60000,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "checkout_status_response") {
return null;
}
if (msg.payload.requestId !== resolvedRequestId) {
return null;
}
return msg.payload;
},
});
if (!requestId) {
this.checkoutStatusInFlight.set(cwd, responsePromise);
void responsePromise
.finally(() => {
if (this.checkoutStatusInFlight.get(cwd) === responsePromise) {
this.checkoutStatusInFlight.delete(cwd);
}
})
.catch(() => undefined);
}
return responsePromise;
}
private normalizeCheckoutDiffCompare(
compare: { mode: "uncommitted" | "base"; baseRef?: string }
): { mode: "uncommitted" | "base"; baseRef?: string } {
if (compare.mode === "uncommitted") {
return { mode: "uncommitted" };
}
const trimmedBaseRef = compare.baseRef?.trim();
if (!trimmedBaseRef) {
return { mode: "base" };
}
return { mode: "base", baseRef: trimmedBaseRef };
}
async getCheckoutDiff(
cwd: string,
compare: { mode: "uncommitted" | "base"; baseRef?: string },
requestId?: string
): Promise<CheckoutDiffPayload> {
const oneShotSubscriptionId = `oneshot-checkout-diff:${crypto.randomUUID()}`;
try {
const payload = await this.subscribeCheckoutDiff(cwd, compare, {
subscriptionId: oneShotSubscriptionId,
requestId,
});
return {
cwd: payload.cwd,
files: payload.files,
error: payload.error,
requestId: payload.requestId,
};
} finally {
try {
this.unsubscribeCheckoutDiff(oneShotSubscriptionId);
} catch {
// Ignore disconnect races during one-shot cleanup.
}
}
}
async subscribeCheckoutDiff(
cwd: string,
compare: { mode: "uncommitted" | "base"; baseRef?: string },
options?: { subscriptionId?: string; requestId?: string }
): Promise<SubscribeCheckoutDiffPayload> {
const subscriptionId = options?.subscriptionId ?? crypto.randomUUID();
const normalizedCompare = this.normalizeCheckoutDiffCompare(compare);
const previousSubscription = this.checkoutDiffSubscriptions.get(subscriptionId) ?? null;
this.checkoutDiffSubscriptions.set(subscriptionId, {
cwd,
compare: normalizedCompare,
});
const resolvedRequestId = this.createRequestId(options?.requestId);
const message = SessionInboundMessageSchema.parse({
type: "subscribe_checkout_diff_request",
subscriptionId,
cwd,
compare: normalizedCompare,
requestId: resolvedRequestId,
});
try {
return await this.sendCorrelatedRequest({
requestId: resolvedRequestId,
message,
responseType: "subscribe_checkout_diff_response",
timeout: 60000,
options: { skipQueue: true },
selectPayload: (payload) => {
if (payload.subscriptionId !== subscriptionId) {
return null;
}
return payload;
},
});
} catch (error) {
if (previousSubscription) {
this.checkoutDiffSubscriptions.set(subscriptionId, previousSubscription);
} else {
this.checkoutDiffSubscriptions.delete(subscriptionId);
}
throw error;
}
}
unsubscribeCheckoutDiff(subscriptionId: string): void {
this.checkoutDiffSubscriptions.delete(subscriptionId);
this.sendSessionMessage({
type: "unsubscribe_checkout_diff_request",
subscriptionId,
});
}
async checkoutCommit(
cwd: string,
input: { message?: string; addAll?: boolean },
requestId?: string
): Promise<CheckoutCommitPayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "checkout_commit_request",
cwd,
message: input.message,
addAll: input.addAll,
},
responseType: "checkout_commit_response",
timeout: 60000,
});
}
async checkoutMerge(
cwd: string,
input: { baseRef?: string; strategy?: "merge" | "squash"; requireCleanTarget?: boolean },
requestId?: string
): Promise<CheckoutMergePayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "checkout_merge_request",
cwd,
baseRef: input.baseRef,
strategy: input.strategy,
requireCleanTarget: input.requireCleanTarget,
},
responseType: "checkout_merge_response",
timeout: 60000,
});
}
async checkoutMergeFromBase(
cwd: string,
input: { baseRef?: string; requireCleanTarget?: boolean },
requestId?: string
): Promise<CheckoutMergeFromBasePayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "checkout_merge_from_base_request",
cwd,
baseRef: input.baseRef,
requireCleanTarget: input.requireCleanTarget,
},
responseType: "checkout_merge_from_base_response",
timeout: 60000,
});
}
async checkoutPush(cwd: string, requestId?: string): Promise<CheckoutPushPayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "checkout_push_request",
cwd,
},
responseType: "checkout_push_response",
timeout: 60000,
});
}
async checkoutPrCreate(
cwd: string,
input: { title?: string; body?: string; baseRef?: string },
requestId?: string
): Promise<CheckoutPrCreatePayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "checkout_pr_create_request",
cwd,
title: input.title,
body: input.body,
baseRef: input.baseRef,
},
responseType: "checkout_pr_create_response",
timeout: 60000,
});
}
async checkoutPrStatus(
cwd: string,
requestId?: string
): Promise<CheckoutPrStatusPayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "checkout_pr_status_request",
cwd,
},
responseType: "checkout_pr_status_response",
timeout: 60000,
});
}
async getPaseoWorktreeList(
input: { cwd?: string; repoRoot?: string },
requestId?: string
): Promise<PaseoWorktreeListPayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "paseo_worktree_list_request",
cwd: input.cwd,
repoRoot: input.repoRoot,
},
responseType: "paseo_worktree_list_response",
timeout: 60000,
});
}
async archivePaseoWorktree(
input: { worktreePath?: string; repoRoot?: string; branchName?: string },
requestId?: string
): Promise<PaseoWorktreeArchivePayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "paseo_worktree_archive_request",
worktreePath: input.worktreePath,
repoRoot: input.repoRoot,
branchName: input.branchName,
},
responseType: "paseo_worktree_archive_response",
timeout: 20000,
});
}
async validateBranch(
options: { cwd: string; branchName: string },
requestId?: string
): Promise<ValidateBranchPayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "validate_branch_request",
cwd: options.cwd,
branchName: options.branchName,
},
responseType: "validate_branch_response",
timeout: 10000,
});
}
async getBranchSuggestions(
options: { cwd: string; query?: string; limit?: number },
requestId?: string
): Promise<BranchSuggestionsPayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "branch_suggestions_request",
cwd: options.cwd,
query: options.query,
limit: options.limit,
},
responseType: "branch_suggestions_response",
timeout: 10000,
});
}
async getDirectorySuggestions(
options: { query: string; limit?: number },
requestId?: string
): Promise<DirectorySuggestionsPayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "directory_suggestions_request",
query: options.query,
limit: options.limit,
},
responseType: "directory_suggestions_response",
timeout: 10000,
});
}
// ============================================================================
// File Explorer
// ============================================================================
async exploreFileSystem(
agentId: string,
path: string,
mode: "list" | "file" = "list",
requestId?: string
): Promise<FileExplorerPayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "file_explorer_request",
agentId,
path,
mode,
},
responseType: "file_explorer_response",
timeout: 10000,
});
}
async requestDownloadToken(
agentId: string,
path: string,
requestId?: string
): Promise<FileDownloadTokenPayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "file_download_token_request",
agentId,
path,
},
responseType: "file_download_token_response",
timeout: 10000,
});
}
async requestProjectIcon(
cwd: string,
requestId?: string
): Promise<ProjectIconResponse["payload"]> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "project_icon_request",
cwd,
},
responseType: "project_icon_response",
timeout: 10000,
});
}
// ============================================================================
// Provider Models / Commands
// ============================================================================
async listProviderModels(
provider: AgentProvider,
options?: { cwd?: string; requestId?: string }
): Promise<ListProviderModelsPayload> {
return this.sendCorrelatedSessionRequest({
requestId: options?.requestId,
message: {
type: "list_provider_models_request",
provider,
cwd: options?.cwd,
},
responseType: "list_provider_models_response",
timeout: 30000,
});
}
async listAvailableProviders(options?: {
requestId?: string;
}): Promise<ListAvailableProvidersPayload> {
return this.sendCorrelatedSessionRequest({
requestId: options?.requestId,
message: {
type: "list_available_providers_request",
},
responseType: "list_available_providers_response",
timeout: 30000,
});
}
async listSpeechModels(requestId?: string): Promise<SpeechModelsListPayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "speech_models_list_request",
},
responseType: "speech_models_list_response",
timeout: 30000,
});
}
async downloadSpeechModels(
options?: { modelIds?: string[]; requestId?: string }
): Promise<SpeechModelsDownloadPayload> {
return this.sendCorrelatedSessionRequest({
requestId: options?.requestId,
message: {
type: "speech_models_download_request",
modelIds: options?.modelIds,
},
responseType: "speech_models_download_response",
timeout: 30 * 60 * 1000,
});
}
async listCommands(
agentId: string,
requestId?: string
): Promise<ListCommandsPayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "list_commands_request",
agentId,
},
responseType: "list_commands_response",
timeout: 30000,
});
}
async executeCommand(
agentId: string,
commandName: string,
args?: string,
requestId?: string
): Promise<ExecuteCommandPayload> {
return this.sendCorrelatedSessionRequest({
requestId,
message: {
type: "execute_command_request",
agentId,
commandName,
args,
},
responseType: "execute_command_response",
timeout: 30000,
});
}
// ============================================================================
// Permissions
// ============================================================================
async respondToPermission(
agentId: string,
requestId: string,
response: AgentPermissionResponse
): Promise<void> {
this.sendSessionMessage({
type: "agent_permission_response",
agentId,
requestId,
response,
});
}
async respondToPermissionAndWait(
agentId: string,
requestId: string,
response: AgentPermissionResponse,
timeout = 15000
): Promise<AgentPermissionResolvedPayload> {
const message = SessionInboundMessageSchema.parse({
type: "agent_permission_response",
agentId,
requestId,
response,
});
return this.sendRequest({
requestId,
message,
timeout,
options: { skipQueue: true },
select: (msg) => {
if (msg.type !== "agent_permission_resolved") {
return null;
}
if (msg.payload.requestId !== requestId) {
return null;
}
if (msg.payload.agentId !== agentId) {
return null;
}
return msg.payload;
},
});
}
// ============================================================================
// Waiting / Streaming Helpers
// ============================================================================
async waitForAgentUpsert(
agentId: string,
predicate: (snapshot: AgentSnapshotPayload) => boolean,
timeout = 60000
): Promise<AgentSnapshotPayload> {
const startedAt = Date.now();
while (Date.now() - startedAt < timeout) {
const snapshot = await this.fetchAgent(agentId).catch(() => null);
if (snapshot && predicate(snapshot)) {
return snapshot;
}
await new Promise((resolve) => setTimeout(resolve, 250));
}
throw new Error(`Timed out waiting for agent ${agentId}`);
}
async waitForFinish(
agentId: string,
timeout = 60000
): Promise<WaitForFinishResult> {
const requestId = this.createRequestId();
const message = SessionInboundMessageSchema.parse({
type: "wait_for_finish_request",
requestId,
agentId,
timeoutMs: timeout,
});
const payload = await this.sendCorrelatedRequest({
requestId,
message,
responseType: "wait_for_finish_response",
timeout: timeout + 5000,
options: { skipQueue: true },
});
return {
status: payload.status,
final: payload.final,
error: payload.error,
lastMessage: payload.lastMessage,
};
}
// ============================================================================
// Terminals
// ============================================================================
subscribeTerminals(input: { cwd: string }): void {
this.terminalDirectorySubscriptions.add(input.cwd);
if (!this.transport || this.connectionState.status !== "connected") {
return;
}
this.sendSessionMessage({
type: "subscribe_terminals_request",
cwd: input.cwd,
});
}
unsubscribeTerminals(input: { cwd: string }): void {
this.terminalDirectorySubscriptions.delete(input.cwd);
if (!this.transport || this.connectionState.status !== "connected") {
return;
}
this.sendSessionMessage({
type: "unsubscribe_terminals_request",
cwd: input.cwd,
});
}
async listTerminals(
cwd: string,
requestId?: string
): Promise<ListTerminalsPayload> {
const resolvedRequestId = this.createRequestId(requestId);
const message = SessionInboundMessageSchema.parse({
type: "list_terminals_request",
cwd,
requestId: resolvedRequestId,
});
return this.sendCorrelatedRequest({
requestId: resolvedRequestId,
message,
responseType: "list_terminals_response",
timeout: 10000,
options: { skipQueue: true },
});
}
async createTerminal(
cwd: string,
name?: string,
requestId?: string
): Promise<CreateTerminalPayload> {
const resolvedRequestId = this.createRequestId(requestId);
const message = SessionInboundMessageSchema.parse({
type: "create_terminal_request",
cwd,
name,
requestId: resolvedRequestId,
});
return this.sendCorrelatedRequest({
requestId: resolvedRequestId,
message,
responseType: "create_terminal_response",
timeout: 10000,
options: { skipQueue: true },
});
}
async subscribeTerminal(
terminalId: string,
requestId?: string
): Promise<SubscribeTerminalPayload> {
const resolvedRequestId = this.createRequestId(requestId);
const message = SessionInboundMessageSchema.parse({
type: "subscribe_terminal_request",
terminalId,
requestId: resolvedRequestId,
});
return this.sendCorrelatedRequest({
requestId: resolvedRequestId,
message,
responseType: "subscribe_terminal_response",
timeout: 10000,
options: { skipQueue: true },
});
}
unsubscribeTerminal(terminalId: string): void {
this.sendSessionMessage({
type: "unsubscribe_terminal_request",
terminalId,
});
}
sendTerminalInput(
terminalId: string,
message: TerminalInput["message"]
): void {
this.sendSessionMessage({
type: "terminal_input",
terminalId,
message,
});
}
async killTerminal(
terminalId: string,
requestId?: string
): Promise<KillTerminalPayload> {
const resolvedRequestId = this.createRequestId(requestId);
const message = SessionInboundMessageSchema.parse({
type: "kill_terminal_request",
terminalId,
requestId: resolvedRequestId,
});
return this.sendCorrelatedRequest({
requestId: resolvedRequestId,
message,
responseType: "kill_terminal_response",
timeout: 10000,
options: { skipQueue: true },
});
}
async attachTerminalStream(
terminalId: string,
options?: {
resumeOffset?: number;
rows?: number;
cols?: number;
},
requestId?: string
): Promise<AttachTerminalStreamPayload> {
const resolvedRequestId = this.createRequestId(requestId);
const message = SessionInboundMessageSchema.parse({
type: "attach_terminal_stream_request",
terminalId,
requestId: resolvedRequestId,
...(options?.resumeOffset !== undefined ? { resumeOffset: options.resumeOffset } : {}),
...(options?.rows !== undefined ? { rows: options.rows } : {}),
...(options?.cols !== undefined ? { cols: options.cols } : {}),
});
return this.sendCorrelatedRequest({
requestId: resolvedRequestId,
message,
responseType: "attach_terminal_stream_response",
timeout: 10000,
options: { skipQueue: true },
});
}
async detachTerminalStream(
streamId: number,
requestId?: string
): Promise<DetachTerminalStreamPayload> {
const resolvedRequestId = this.createRequestId(requestId);
const message = SessionInboundMessageSchema.parse({
type: "detach_terminal_stream_request",
streamId,
requestId: resolvedRequestId,
});
const payload = await this.sendCorrelatedRequest({
requestId: resolvedRequestId,
message,
responseType: "detach_terminal_stream_response",
timeout: 10000,
options: { skipQueue: true },
});
this.terminalStreams.clearStream({ streamId });
return payload;
}
onTerminalStreamData(
streamId: number,
handler: (chunk: TerminalStreamChunk) => void
): () => void {
return this.terminalStreams.subscribe({ streamId, handler });
}
async waitForTerminalStreamData(
streamId: number,
predicate: (chunk: TerminalStreamChunk) => boolean,
timeout = 5000
): Promise<TerminalStreamChunk> {
return new Promise<TerminalStreamChunk>((resolve, reject) => {
const timeoutHandle = setTimeout(() => {
unsubscribe();
reject(new Error(`Timeout waiting for terminal stream data (${timeout}ms)`));
}, timeout);
const unsubscribe = this.onTerminalStreamData(streamId, (chunk) => {
if (!predicate(chunk)) {
return;
}
clearTimeout(timeoutHandle);
unsubscribe();
resolve(chunk);
});
});
}
sendTerminalStreamInput(streamId: number, data: string | Uint8Array): void {
const payload = typeof data === "string" ? encodeUtf8String(data) : data;
this.sendBinaryFrame({
channel: BinaryMuxChannel.Terminal,
messageType: TerminalBinaryMessageType.InputUtf8,
streamId,
offset: 0,
payload,
});
}
sendTerminalStreamKey(streamId: number, input: TerminalKeyInput): void {
const encoded = encodeTerminalKeyInput(input);
if (!encoded) {
return;
}
this.sendTerminalStreamInput(streamId, encoded);
}
sendTerminalStreamAck(streamId: number, offset: number): void {
const normalizedOffset = Math.max(0, Math.floor(offset));
this.terminalStreams.noteAck({ streamId, offset: normalizedOffset });
this.sendBinaryFrame({
channel: BinaryMuxChannel.Terminal,
messageType: TerminalBinaryMessageType.Ack,
streamId,
offset: normalizedOffset,
payload: new Uint8Array(0),
});
}
async waitForTerminalOutput(
terminalId: string,
timeout = 5000
): Promise<TerminalOutputPayload> {
return this.waitFor(
(msg) => {
if (msg.type !== "terminal_output") {
return null;
}
if (msg.payload.terminalId !== terminalId) {
return null;
}
return msg.payload;
},
timeout,
{ skipQueue: true }
);
}
// ============================================================================
// Internals
// ============================================================================
private createRequestId(requestId?: string): string {
return requestId ?? crypto.randomUUID();
}
private disposeTransport(code = 1001, reason = "Reconnecting"): void {
this.cleanupTransport();
if (this.transport) {
try {
this.transport.close(code, reason);
} catch {
// no-op
}
this.transport = null;
}
}
private cleanupTransport(): void {
if (this.pendingGenericTransportErrorTimeout) {
clearTimeout(this.pendingGenericTransportErrorTimeout);
this.pendingGenericTransportErrorTimeout = null;
}
for (const cleanup of this.transportCleanup) {
try {
cleanup();
} catch {
// no-op
}
}
this.transportCleanup = [];
}
private handleTransportMessage(data: unknown): void {
const rawData =
data && typeof data === "object" && "data" in data
? (data as { data: unknown }).data
: data;
const rawBytes = asUint8Array(rawData);
if (rawBytes) {
const frame = decodeBinaryMuxFrame(rawBytes);
if (frame) {
this.handleBinaryFrame(frame);
return;
}
}
const payload = decodeMessageData(rawData);
if (!payload) {
return;
}
let parsedJson: unknown;
try {
parsedJson = JSON.parse(payload);
} catch {
return;
}
const parsed = WSOutboundMessageSchema.safeParse(parsedJson);
if (!parsed.success) {
const msgType = (parsedJson as { message?: { type?: string } })?.message?.type ?? "unknown";
this.logger.warn({ msgType, error: parsed.error.message }, "Message validation failed");
return;
}
if (parsed.data.type === "pong") {
return;
}
this.handleSessionMessage(parsed.data.message);
}
private handleBinaryFrame(frame: BinaryMuxFrame): void {
if (
frame.channel === BinaryMuxChannel.Terminal &&
frame.messageType === TerminalBinaryMessageType.OutputUtf8
) {
const chunk: TerminalStreamChunk = {
streamId: frame.streamId,
offset: frame.offset,
endOffset: frame.offset + (frame.payload?.byteLength ?? 0),
replay: Boolean((frame.flags ?? 0) & TerminalBinaryFlags.Replay),
data: frame.payload ?? new Uint8Array(0),
};
this.terminalStreams.receiveChunk({ chunk });
return;
}
}
private updateConnectionState(next: ConnectionState): void {
this.connectionState = next;
for (const listener of this.connectionListeners) {
try {
listener(next);
} catch {
// no-op
}
}
}
private scheduleReconnect(reason?: string): void {
if (this.reconnectTimeout) {
clearTimeout(this.reconnectTimeout);
this.reconnectTimeout = null;
}
if (!this.shouldReconnect || this.config.reconnect?.enabled === false) {
this.rejectConnect(
new Error(reason ?? "Transport disconnected before connect")
);
return;
}
const attempt = this.reconnectAttempt;
const baseDelay =
this.config.reconnect?.baseDelayMs ?? DEFAULT_RECONNECT_BASE_DELAY_MS;
const maxDelay =
this.config.reconnect?.maxDelayMs ?? DEFAULT_RECONNECT_MAX_DELAY_MS;
const delay = Math.min(baseDelay * 2 ** attempt, maxDelay);
this.reconnectAttempt = attempt + 1;
if (typeof reason === "string" && reason.trim().length > 0) {
this.lastErrorValue = reason.trim();
}
// Clear all pending waiters and queued sends since the connection was lost
// and responses from the previous connection will never arrive.
this.clearWaiters(new Error(reason ?? "Connection lost"));
this.rejectPendingSendQueue(new Error(reason ?? "Connection lost"));
this.terminalStreams.clearAll();
this.updateConnectionState({
status: "disconnected",
...(reason ? { reason } : {}),
});
this.reconnectTimeout = setTimeout(() => {
this.reconnectTimeout = null;
if (!this.shouldReconnect) {
return;
}
this.attemptConnect();
}, delay);
}
private handleSessionMessage(msg: SessionOutboundMessage): void {
if (msg.type === "terminal_stream_exit") {
this.terminalStreams.clearStream({ streamId: msg.payload.streamId });
}
if (this.rawMessageListeners.size > 0) {
for (const handler of this.rawMessageListeners) {
try {
handler(msg);
} catch {
// no-op
}
}
}
const handlers = this.messageHandlers.get(msg.type);
if (handlers) {
for (const handler of handlers) {
try {
handler(msg);
} catch {
// no-op
}
}
}
const event = this.toEvent(msg);
if (event) {
for (const handler of this.eventListeners) {
handler(event);
}
}
this.resolveWaiters(msg);
}
private resolveWaiters(msg: SessionOutboundMessage): void {
for (const waiter of Array.from(this.waiters)) {
const result = waiter.predicate(msg);
if (result !== null) {
this.waiters.delete(waiter);
if (waiter.timeoutHandle) {
clearTimeout(waiter.timeoutHandle);
}
waiter.resolve(result);
}
}
}
private clearWaiters(error: Error): void {
for (const waiter of Array.from(this.waiters)) {
if (waiter.timeoutHandle) {
clearTimeout(waiter.timeoutHandle);
}
waiter.reject(error);
}
this.waiters.clear();
}
private toEvent(msg: SessionOutboundMessage): DaemonEvent | null {
switch (msg.type) {
case "agent_update":
return {
type: "agent_update",
agentId:
msg.payload.kind === "upsert"
? msg.payload.agent.id
: msg.payload.agentId,
payload: msg.payload,
};
case "agent_stream":
return {
type: "agent_stream",
agentId: msg.payload.agentId,
event: msg.payload.event,
timestamp: msg.payload.timestamp,
...(typeof msg.payload.seq === "number" ? { seq: msg.payload.seq } : {}),
...(typeof msg.payload.epoch === "string" ? { epoch: msg.payload.epoch } : {}),
};
case "status":
return { type: "status", payload: msg.payload };
case "agent_deleted":
return { type: "agent_deleted", agentId: msg.payload.agentId };
case "agent_permission_request":
return {
type: "agent_permission_request",
agentId: msg.payload.agentId,
request: msg.payload.request,
};
case "agent_permission_resolved":
return {
type: "agent_permission_resolved",
agentId: msg.payload.agentId,
requestId: msg.payload.requestId,
resolution: msg.payload.resolution,
};
default:
return null;
}
}
private async waitFor<T>(
predicate: (msg: SessionOutboundMessage) => T | null,
timeout = 30000,
_options?: { skipQueue?: boolean }
): Promise<T> {
return this.waitForWithCancel(predicate, timeout, _options).promise;
}
private waitForWithCancel<T>(
predicate: (msg: SessionOutboundMessage) => T | null,
timeout = 30000,
_options?: { skipQueue?: boolean }
): WaitHandle<T> {
// Capture stack trace at call site, not inside setTimeout
const timeoutError = new Error(`Timeout waiting for message (${timeout}ms)`);
let waiter: Waiter<T> | null = null;
let settled = false;
let rejectFn: ((error: Error) => void) | null = null;
const promise = new Promise<T>((resolve, reject) => {
const wrappedResolve = (value: T) => {
if (settled) return;
settled = true;
resolve(value);
};
const wrappedReject = (error: Error) => {
if (settled) return;
settled = true;
reject(error);
};
rejectFn = wrappedReject;
const timeoutHandle =
timeout > 0
? setTimeout(() => {
if (waiter) {
this.waiters.delete(waiter);
}
wrappedReject(timeoutError);
}, timeout)
: null;
waiter = {
predicate,
resolve: wrappedResolve,
reject: wrappedReject,
timeoutHandle,
};
this.waiters.add(waiter);
});
const cancel = (error: Error) => {
if (settled) {
return;
}
if (waiter) {
this.waiters.delete(waiter);
if (waiter.timeoutHandle) {
clearTimeout(waiter.timeoutHandle);
}
}
if (rejectFn) {
rejectFn(error);
return;
}
// Extremely unlikely: cancel called before the Promise executor ran.
queueMicrotask(() => {
if (!settled && rejectFn) {
rejectFn(error);
}
});
};
return { promise, cancel };
}
}
function resolveAgentConfig(options: CreateAgentRequestOptions): AgentSessionConfig {
const {
config,
provider,
cwd,
initialPrompt: _initialPrompt,
images: _images,
git: _git,
worktreeName: _worktreeName,
requestId: _requestId,
labels: _labels,
...overrides
} = options;
const baseConfig: Partial<AgentSessionConfig> = {
...(provider ? { provider } : {}),
...(cwd ? { cwd } : {}),
...overrides,
};
const merged = config ? { ...baseConfig, ...config } : baseConfig;
if (!merged.provider || !merged.cwd) {
throw new Error("createAgent requires provider and cwd");
}
if (!merged.modeId) {
merged.modeId = getAgentProviderDefinition(merged.provider).defaultModeId ?? undefined;
}
return {
...merged,
provider: merged.provider,
cwd: merged.cwd,
};
}