Merge tag 'v0.1.21' of github.com:google-gemini/gemini-cli into chore/sync-gemini-cli-v0.1.21

This commit is contained in:
mingholy.lmh
2025-08-20 22:24:50 +08:00
163 changed files with 8812 additions and 4098 deletions

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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
/* ACP defines a schema for a simple (experimental) JSON-RPC protocol that allows GUI applications to interact with agents. */
import { z } from 'zod';
import * as schema from './schema.js';
export * from './schema.js';
import { WritableStream, ReadableStream } from 'node:stream/web';
export class AgentSideConnection implements Client {
#connection: Connection;
constructor(
toAgent: (conn: Client) => Agent,
input: WritableStream<Uint8Array>,
output: ReadableStream<Uint8Array>,
) {
const agent = toAgent(this);
const handler = async (
method: string,
params: unknown,
): Promise<unknown> => {
switch (method) {
case schema.AGENT_METHODS.initialize: {
const validatedParams = schema.initializeRequestSchema.parse(params);
return agent.initialize(validatedParams);
}
case schema.AGENT_METHODS.session_new: {
const validatedParams = schema.newSessionRequestSchema.parse(params);
return agent.newSession(validatedParams);
}
case schema.AGENT_METHODS.session_load: {
if (!agent.loadSession) {
throw RequestError.methodNotFound();
}
const validatedParams = schema.loadSessionRequestSchema.parse(params);
return agent.loadSession(validatedParams);
}
case schema.AGENT_METHODS.authenticate: {
const validatedParams =
schema.authenticateRequestSchema.parse(params);
return agent.authenticate(validatedParams);
}
case schema.AGENT_METHODS.session_prompt: {
const validatedParams = schema.promptRequestSchema.parse(params);
return agent.prompt(validatedParams);
}
case schema.AGENT_METHODS.session_cancel: {
const validatedParams = schema.cancelNotificationSchema.parse(params);
return agent.cancel(validatedParams);
}
default:
throw RequestError.methodNotFound(method);
}
};
this.#connection = new Connection(handler, input, output);
}
/**
* Streams new content to the client including text, tool calls, etc.
*/
async sessionUpdate(params: schema.SessionNotification): Promise<void> {
return await this.#connection.sendNotification(
schema.CLIENT_METHODS.session_update,
params,
);
}
/**
* Request permission before running a tool
*
* The agent specifies a series of permission options with different granularity,
* and the client returns the chosen one.
*/
async requestPermission(
params: schema.RequestPermissionRequest,
): Promise<schema.RequestPermissionResponse> {
return await this.#connection.sendRequest(
schema.CLIENT_METHODS.session_request_permission,
params,
);
}
async readTextFile(
params: schema.ReadTextFileRequest,
): Promise<schema.ReadTextFileResponse> {
return await this.#connection.sendRequest(
schema.CLIENT_METHODS.fs_read_text_file,
params,
);
}
async writeTextFile(
params: schema.WriteTextFileRequest,
): Promise<schema.WriteTextFileResponse> {
return await this.#connection.sendRequest(
schema.CLIENT_METHODS.fs_write_text_file,
params,
);
}
}
type AnyMessage = AnyRequest | AnyResponse | AnyNotification;
type AnyRequest = {
jsonrpc: '2.0';
id: string | number;
method: string;
params?: unknown;
};
type AnyResponse = {
jsonrpc: '2.0';
id: string | number;
} & Result<unknown>;
type AnyNotification = {
jsonrpc: '2.0';
method: string;
params?: unknown;
};
type Result<T> =
| {
result: T;
}
| {
error: ErrorResponse;
};
type ErrorResponse = {
code: number;
message: string;
data?: unknown;
};
type PendingResponse = {
resolve: (response: unknown) => void;
reject: (error: ErrorResponse) => void;
};
type MethodHandler = (method: string, params: unknown) => Promise<unknown>;
class Connection {
#pendingResponses: Map<string | number, PendingResponse> = new Map();
#nextRequestId: number = 0;
#handler: MethodHandler;
#peerInput: WritableStream<Uint8Array>;
#writeQueue: Promise<void> = Promise.resolve();
#textEncoder: TextEncoder;
constructor(
handler: MethodHandler,
peerInput: WritableStream<Uint8Array>,
peerOutput: ReadableStream<Uint8Array>,
) {
this.#handler = handler;
this.#peerInput = peerInput;
this.#textEncoder = new TextEncoder();
this.#receive(peerOutput);
}
async #receive(output: ReadableStream<Uint8Array>) {
let content = '';
const decoder = new TextDecoder();
for await (const chunk of output) {
content += decoder.decode(chunk, { stream: true });
const lines = content.split('\n');
content = lines.pop() || '';
for (const line of lines) {
const trimmedLine = line.trim();
if (trimmedLine) {
const message = JSON.parse(trimmedLine);
this.#processMessage(message);
}
}
}
}
async #processMessage(message: AnyMessage) {
if ('method' in message && 'id' in message) {
// It's a request
const response = await this.#tryCallHandler(
message.method,
message.params,
);
await this.#sendMessage({
jsonrpc: '2.0',
id: message.id,
...response,
});
} else if ('method' in message) {
// It's a notification
await this.#tryCallHandler(message.method, message.params);
} else if ('id' in message) {
// It's a response
this.#handleResponse(message as AnyResponse);
}
}
async #tryCallHandler(
method: string,
params?: unknown,
): Promise<Result<unknown>> {
try {
const result = await this.#handler(method, params);
return { result: result ?? null };
} catch (error: unknown) {
if (error instanceof RequestError) {
return error.toResult();
}
if (error instanceof z.ZodError) {
return RequestError.invalidParams(
JSON.stringify(error.format(), undefined, 2),
).toResult();
}
let details;
if (error instanceof Error) {
details = error.message;
} else if (
typeof error === 'object' &&
error != null &&
'message' in error &&
typeof error.message === 'string'
) {
details = error.message;
}
return RequestError.internalError(details).toResult();
}
}
#handleResponse(response: AnyResponse) {
const pendingResponse = this.#pendingResponses.get(response.id);
if (pendingResponse) {
if ('result' in response) {
pendingResponse.resolve(response.result);
} else if ('error' in response) {
pendingResponse.reject(response.error);
}
this.#pendingResponses.delete(response.id);
}
}
async sendRequest<Req, Resp>(method: string, params?: Req): Promise<Resp> {
const id = this.#nextRequestId++;
const responsePromise = new Promise((resolve, reject) => {
this.#pendingResponses.set(id, { resolve, reject });
});
await this.#sendMessage({ jsonrpc: '2.0', id, method, params });
return responsePromise as Promise<Resp>;
}
async sendNotification<N>(method: string, params?: N): Promise<void> {
await this.#sendMessage({ jsonrpc: '2.0', method, params });
}
async #sendMessage(json: AnyMessage) {
const content = JSON.stringify(json) + '\n';
this.#writeQueue = this.#writeQueue
.then(async () => {
const writer = this.#peerInput.getWriter();
try {
await writer.write(this.#textEncoder.encode(content));
} finally {
writer.releaseLock();
}
})
.catch((error) => {
// Continue processing writes on error
console.error('ACP write error:', error);
});
return this.#writeQueue;
}
}
export class RequestError extends Error {
data?: { details?: string };
constructor(
public code: number,
message: string,
details?: string,
) {
super(message);
this.name = 'RequestError';
if (details) {
this.data = { details };
}
}
static parseError(details?: string): RequestError {
return new RequestError(-32700, 'Parse error', details);
}
static invalidRequest(details?: string): RequestError {
return new RequestError(-32600, 'Invalid request', details);
}
static methodNotFound(details?: string): RequestError {
return new RequestError(-32601, 'Method not found', details);
}
static invalidParams(details?: string): RequestError {
return new RequestError(-32602, 'Invalid params', details);
}
static internalError(details?: string): RequestError {
return new RequestError(-32603, 'Internal error', details);
}
static authRequired(details?: string): RequestError {
return new RequestError(-32000, 'Authentication required', details);
}
toResult<T>(): Result<T> {
return {
error: {
code: this.code,
message: this.message,
data: this.data,
},
};
}
}
export interface Client {
requestPermission(
params: schema.RequestPermissionRequest,
): Promise<schema.RequestPermissionResponse>;
sessionUpdate(params: schema.SessionNotification): Promise<void>;
writeTextFile(
params: schema.WriteTextFileRequest,
): Promise<schema.WriteTextFileResponse>;
readTextFile(
params: schema.ReadTextFileRequest,
): Promise<schema.ReadTextFileResponse>;
}
export interface Agent {
initialize(
params: schema.InitializeRequest,
): Promise<schema.InitializeResponse>;
newSession(
params: schema.NewSessionRequest,
): Promise<schema.NewSessionResponse>;
loadSession?(
params: schema.LoadSessionRequest,
): Promise<schema.LoadSessionResponse>;
authenticate(params: schema.AuthenticateRequest): Promise<void>;
prompt(params: schema.PromptRequest): Promise<schema.PromptResponse>;
cancel(params: schema.CancelNotification): Promise<void>;
}

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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { z } from 'zod';
export const AGENT_METHODS = {
authenticate: 'authenticate',
initialize: 'initialize',
session_cancel: 'session/cancel',
session_load: 'session/load',
session_new: 'session/new',
session_prompt: 'session/prompt',
};
export const CLIENT_METHODS = {
fs_read_text_file: 'fs/read_text_file',
fs_write_text_file: 'fs/write_text_file',
session_request_permission: 'session/request_permission',
session_update: 'session/update',
};
export const PROTOCOL_VERSION = 1;
export type WriteTextFileRequest = z.infer<typeof writeTextFileRequestSchema>;
export type ReadTextFileRequest = z.infer<typeof readTextFileRequestSchema>;
export type PermissionOptionKind = z.infer<typeof permissionOptionKindSchema>;
export type Role = z.infer<typeof roleSchema>;
export type TextResourceContents = z.infer<typeof textResourceContentsSchema>;
export type BlobResourceContents = z.infer<typeof blobResourceContentsSchema>;
export type ToolKind = z.infer<typeof toolKindSchema>;
export type ToolCallStatus = z.infer<typeof toolCallStatusSchema>;
export type WriteTextFileResponse = z.infer<typeof writeTextFileResponseSchema>;
export type ReadTextFileResponse = z.infer<typeof readTextFileResponseSchema>;
export type RequestPermissionOutcome = z.infer<
typeof requestPermissionOutcomeSchema
>;
export type CancelNotification = z.infer<typeof cancelNotificationSchema>;
export type AuthenticateRequest = z.infer<typeof authenticateRequestSchema>;
export type AuthenticateResponse = z.infer<typeof authenticateResponseSchema>;
export type NewSessionResponse = z.infer<typeof newSessionResponseSchema>;
export type LoadSessionResponse = z.infer<typeof loadSessionResponseSchema>;
export type StopReason = z.infer<typeof stopReasonSchema>;
export type PromptResponse = z.infer<typeof promptResponseSchema>;
export type ToolCallLocation = z.infer<typeof toolCallLocationSchema>;
export type PlanEntry = z.infer<typeof planEntrySchema>;
export type PermissionOption = z.infer<typeof permissionOptionSchema>;
export type Annotations = z.infer<typeof annotationsSchema>;
export type RequestPermissionResponse = z.infer<
typeof requestPermissionResponseSchema
>;
export type FileSystemCapability = z.infer<typeof fileSystemCapabilitySchema>;
export type EnvVariable = z.infer<typeof envVariableSchema>;
export type McpServer = z.infer<typeof mcpServerSchema>;
export type AgentCapabilities = z.infer<typeof agentCapabilitiesSchema>;
export type AuthMethod = z.infer<typeof authMethodSchema>;
export type ClientResponse = z.infer<typeof clientResponseSchema>;
export type ClientNotification = z.infer<typeof clientNotificationSchema>;
export type EmbeddedResourceResource = z.infer<
typeof embeddedResourceResourceSchema
>;
export type NewSessionRequest = z.infer<typeof newSessionRequestSchema>;
export type LoadSessionRequest = z.infer<typeof loadSessionRequestSchema>;
export type InitializeResponse = z.infer<typeof initializeResponseSchema>;
export type ContentBlock = z.infer<typeof contentBlockSchema>;
export type ToolCallContent = z.infer<typeof toolCallContentSchema>;
export type ToolCall = z.infer<typeof toolCallSchema>;
export type ClientCapabilities = z.infer<typeof clientCapabilitiesSchema>;
export type PromptRequest = z.infer<typeof promptRequestSchema>;
export type SessionUpdate = z.infer<typeof sessionUpdateSchema>;
export type AgentResponse = z.infer<typeof agentResponseSchema>;
export type RequestPermissionRequest = z.infer<
typeof requestPermissionRequestSchema
>;
export type InitializeRequest = z.infer<typeof initializeRequestSchema>;
export type SessionNotification = z.infer<typeof sessionNotificationSchema>;
export type ClientRequest = z.infer<typeof clientRequestSchema>;
export type AgentRequest = z.infer<typeof agentRequestSchema>;
export type AgentNotification = z.infer<typeof agentNotificationSchema>;
export const writeTextFileRequestSchema = z.object({
content: z.string(),
path: z.string(),
sessionId: z.string(),
});
export const readTextFileRequestSchema = z.object({
limit: z.number().optional().nullable(),
line: z.number().optional().nullable(),
path: z.string(),
sessionId: z.string(),
});
export const permissionOptionKindSchema = z.union([
z.literal('allow_once'),
z.literal('allow_always'),
z.literal('reject_once'),
z.literal('reject_always'),
]);
export const roleSchema = z.union([z.literal('assistant'), z.literal('user')]);
export const textResourceContentsSchema = z.object({
mimeType: z.string().optional().nullable(),
text: z.string(),
uri: z.string(),
});
export const blobResourceContentsSchema = z.object({
blob: z.string(),
mimeType: z.string().optional().nullable(),
uri: z.string(),
});
export const toolKindSchema = z.union([
z.literal('read'),
z.literal('edit'),
z.literal('delete'),
z.literal('move'),
z.literal('search'),
z.literal('execute'),
z.literal('think'),
z.literal('fetch'),
z.literal('other'),
]);
export const toolCallStatusSchema = z.union([
z.literal('pending'),
z.literal('in_progress'),
z.literal('completed'),
z.literal('failed'),
]);
export const writeTextFileResponseSchema = z.null();
export const readTextFileResponseSchema = z.object({
content: z.string(),
});
export const requestPermissionOutcomeSchema = z.union([
z.object({
outcome: z.literal('cancelled'),
}),
z.object({
optionId: z.string(),
outcome: z.literal('selected'),
}),
]);
export const cancelNotificationSchema = z.object({
sessionId: z.string(),
});
export const authenticateRequestSchema = z.object({
methodId: z.string(),
});
export const authenticateResponseSchema = z.null();
export const newSessionResponseSchema = z.object({
sessionId: z.string(),
});
export const loadSessionResponseSchema = z.null();
export const stopReasonSchema = z.union([
z.literal('end_turn'),
z.literal('max_tokens'),
z.literal('refusal'),
z.literal('cancelled'),
]);
export const promptResponseSchema = z.object({
stopReason: stopReasonSchema,
});
export const toolCallLocationSchema = z.object({
line: z.number().optional().nullable(),
path: z.string(),
});
export const planEntrySchema = z.object({
content: z.string(),
priority: z.union([z.literal('high'), z.literal('medium'), z.literal('low')]),
status: z.union([
z.literal('pending'),
z.literal('in_progress'),
z.literal('completed'),
]),
});
export const permissionOptionSchema = z.object({
kind: permissionOptionKindSchema,
name: z.string(),
optionId: z.string(),
});
export const annotationsSchema = z.object({
audience: z.array(roleSchema).optional().nullable(),
lastModified: z.string().optional().nullable(),
priority: z.number().optional().nullable(),
});
export const requestPermissionResponseSchema = z.object({
outcome: requestPermissionOutcomeSchema,
});
export const fileSystemCapabilitySchema = z.object({
readTextFile: z.boolean(),
writeTextFile: z.boolean(),
});
export const envVariableSchema = z.object({
name: z.string(),
value: z.string(),
});
export const mcpServerSchema = z.object({
args: z.array(z.string()),
command: z.string(),
env: z.array(envVariableSchema),
name: z.string(),
});
export const agentCapabilitiesSchema = z.object({
loadSession: z.boolean(),
});
export const authMethodSchema = z.object({
description: z.string().nullable(),
id: z.string(),
name: z.string(),
});
export const clientResponseSchema = z.union([
writeTextFileResponseSchema,
readTextFileResponseSchema,
requestPermissionResponseSchema,
]);
export const clientNotificationSchema = cancelNotificationSchema;
export const embeddedResourceResourceSchema = z.union([
textResourceContentsSchema,
blobResourceContentsSchema,
]);
export const newSessionRequestSchema = z.object({
cwd: z.string(),
mcpServers: z.array(mcpServerSchema),
});
export const loadSessionRequestSchema = z.object({
cwd: z.string(),
mcpServers: z.array(mcpServerSchema),
sessionId: z.string(),
});
export const initializeResponseSchema = z.object({
agentCapabilities: agentCapabilitiesSchema,
authMethods: z.array(authMethodSchema),
protocolVersion: z.number(),
});
export const contentBlockSchema = z.union([
z.object({
annotations: annotationsSchema.optional().nullable(),
text: z.string(),
type: z.literal('text'),
}),
z.object({
annotations: annotationsSchema.optional().nullable(),
data: z.string(),
mimeType: z.string(),
type: z.literal('image'),
}),
z.object({
annotations: annotationsSchema.optional().nullable(),
data: z.string(),
mimeType: z.string(),
type: z.literal('audio'),
}),
z.object({
annotations: annotationsSchema.optional().nullable(),
description: z.string().optional().nullable(),
mimeType: z.string().optional().nullable(),
name: z.string(),
size: z.number().optional().nullable(),
title: z.string().optional().nullable(),
type: z.literal('resource_link'),
uri: z.string(),
}),
z.object({
annotations: annotationsSchema.optional().nullable(),
resource: embeddedResourceResourceSchema,
type: z.literal('resource'),
}),
]);
export const toolCallContentSchema = z.union([
z.object({
content: contentBlockSchema,
type: z.literal('content'),
}),
z.object({
newText: z.string(),
oldText: z.string().nullable(),
path: z.string(),
type: z.literal('diff'),
}),
]);
export const toolCallSchema = z.object({
content: z.array(toolCallContentSchema).optional(),
kind: toolKindSchema,
locations: z.array(toolCallLocationSchema).optional(),
rawInput: z.unknown().optional(),
status: toolCallStatusSchema,
title: z.string(),
toolCallId: z.string(),
});
export const clientCapabilitiesSchema = z.object({
fs: fileSystemCapabilitySchema,
});
export const promptRequestSchema = z.object({
prompt: z.array(contentBlockSchema),
sessionId: z.string(),
});
export const sessionUpdateSchema = z.union([
z.object({
content: contentBlockSchema,
sessionUpdate: z.literal('user_message_chunk'),
}),
z.object({
content: contentBlockSchema,
sessionUpdate: z.literal('agent_message_chunk'),
}),
z.object({
content: contentBlockSchema,
sessionUpdate: z.literal('agent_thought_chunk'),
}),
z.object({
content: z.array(toolCallContentSchema).optional(),
kind: toolKindSchema,
locations: z.array(toolCallLocationSchema).optional(),
rawInput: z.unknown().optional(),
sessionUpdate: z.literal('tool_call'),
status: toolCallStatusSchema,
title: z.string(),
toolCallId: z.string(),
}),
z.object({
content: z.array(toolCallContentSchema).optional().nullable(),
kind: toolKindSchema.optional().nullable(),
locations: z.array(toolCallLocationSchema).optional().nullable(),
rawInput: z.unknown().optional(),
sessionUpdate: z.literal('tool_call_update'),
status: toolCallStatusSchema.optional().nullable(),
title: z.string().optional().nullable(),
toolCallId: z.string(),
}),
z.object({
entries: z.array(planEntrySchema),
sessionUpdate: z.literal('plan'),
}),
]);
export const agentResponseSchema = z.union([
initializeResponseSchema,
authenticateResponseSchema,
newSessionResponseSchema,
loadSessionResponseSchema,
promptResponseSchema,
]);
export const requestPermissionRequestSchema = z.object({
options: z.array(permissionOptionSchema),
sessionId: z.string(),
toolCall: toolCallSchema,
});
export const initializeRequestSchema = z.object({
clientCapabilities: clientCapabilitiesSchema,
protocolVersion: z.number(),
});
export const sessionNotificationSchema = z.object({
sessionId: z.string(),
update: sessionUpdateSchema,
});
export const clientRequestSchema = z.union([
writeTextFileRequestSchema,
readTextFileRequestSchema,
requestPermissionRequestSchema,
]);
export const agentRequestSchema = z.union([
initializeRequestSchema,
authenticateRequestSchema,
newSessionRequestSchema,
loadSessionRequestSchema,
promptRequestSchema,
]);
export const agentNotificationSchema = sessionNotificationSchema;

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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { ReadableStream, WritableStream } from 'node:stream/web';
import { Content, FunctionCall, Part, PartListUnion } from '@google/genai';
import {
AuthType,
clearCachedCredentialFile,
Config,
convertToFunctionResponse,
GeminiChat,
getErrorMessage,
getErrorStatus,
isNodeError,
isWithinRoot,
logToolCall,
MCPServerConfig,
ToolCallConfirmationDetails,
ToolConfirmationOutcome,
ToolRegistry,
ToolResult,
} from '@qwen-code/qwen-code-core';
import * as fs from 'fs/promises';
import { Readable, Writable } from 'node:stream';
import * as path from 'path';
import { z } from 'zod';
import { LoadedSettings, SettingScope } from '../config/settings.js';
import * as acp from './acp.js';
import { randomUUID } from 'crypto';
import { CliArgs, loadCliConfig } from '../config/config.js';
import { Extension } from '../config/extension.js';
export async function runZedIntegration(
config: Config,
settings: LoadedSettings,
extensions: Extension[],
argv: CliArgs,
) {
const stdout = Writable.toWeb(process.stdout) as WritableStream;
const stdin = Readable.toWeb(process.stdin) as ReadableStream<Uint8Array>;
// Stdout is used to send messages to the client, so console.log/console.info
// messages to stderr so that they don't interfere with ACP.
console.log = console.error;
console.info = console.error;
console.debug = console.error;
new acp.AgentSideConnection(
(client: acp.Client) =>
new GeminiAgent(config, settings, extensions, argv, client),
stdout,
stdin,
);
}
class GeminiAgent {
private sessions: Map<string, Session> = new Map();
constructor(
private config: Config,
private settings: LoadedSettings,
private extensions: Extension[],
private argv: CliArgs,
private client: acp.Client,
) {}
async initialize(
_args: acp.InitializeRequest,
): Promise<acp.InitializeResponse> {
const authMethods = [
{
id: AuthType.LOGIN_WITH_GOOGLE,
name: 'Log in with Google',
description: null,
},
{
id: AuthType.USE_GEMINI,
name: 'Use Gemini API key',
description:
'Requires setting the `GEMINI_API_KEY` environment variable',
},
{
id: AuthType.USE_VERTEX_AI,
name: 'Vertex AI',
description: null,
},
];
return {
protocolVersion: acp.PROTOCOL_VERSION,
authMethods,
agentCapabilities: {
loadSession: false,
},
};
}
async authenticate({ methodId }: acp.AuthenticateRequest): Promise<void> {
const method = z.nativeEnum(AuthType).parse(methodId);
await clearCachedCredentialFile();
await this.config.refreshAuth(method);
this.settings.setValue(SettingScope.User, 'selectedAuthType', method);
}
async newSession({
cwd,
mcpServers,
}: acp.NewSessionRequest): Promise<acp.NewSessionResponse> {
const sessionId = randomUUID();
const config = await this.newSessionConfig(sessionId, cwd, mcpServers);
let isAuthenticated = false;
if (this.settings.merged.selectedAuthType) {
try {
await config.refreshAuth(this.settings.merged.selectedAuthType);
isAuthenticated = true;
} catch (e) {
console.error(`Authentication failed: ${e}`);
}
}
if (!isAuthenticated) {
throw acp.RequestError.authRequired();
}
const geminiClient = config.getGeminiClient();
const chat = await geminiClient.startChat();
const session = new Session(sessionId, chat, config, this.client);
this.sessions.set(sessionId, session);
return {
sessionId,
};
}
async newSessionConfig(
sessionId: string,
cwd: string,
mcpServers: acp.McpServer[],
): Promise<Config> {
const mergedMcpServers = { ...this.settings.merged.mcpServers };
for (const { command, args, env: rawEnv, name } of mcpServers) {
const env: Record<string, string> = {};
for (const { name: envName, value } of rawEnv) {
env[envName] = value;
}
mergedMcpServers[name] = new MCPServerConfig(command, args, env, cwd);
}
const settings = { ...this.settings.merged, mcpServers: mergedMcpServers };
const config = await loadCliConfig(
settings,
this.extensions,
sessionId,
this.argv,
cwd,
);
await config.initialize();
return config;
}
async cancel(params: acp.CancelNotification): Promise<void> {
const session = this.sessions.get(params.sessionId);
if (!session) {
throw new Error(`Session not found: ${params.sessionId}`);
}
await session.cancelPendingPrompt();
}
async prompt(params: acp.PromptRequest): Promise<acp.PromptResponse> {
const session = this.sessions.get(params.sessionId);
if (!session) {
throw new Error(`Session not found: ${params.sessionId}`);
}
return session.prompt(params);
}
}
class Session {
private pendingPrompt: AbortController | null = null;
constructor(
private readonly id: string,
private readonly chat: GeminiChat,
private readonly config: Config,
private readonly client: acp.Client,
) {}
async cancelPendingPrompt(): Promise<void> {
if (!this.pendingPrompt) {
throw new Error('Not currently generating');
}
this.pendingPrompt.abort();
this.pendingPrompt = null;
}
async prompt(params: acp.PromptRequest): Promise<acp.PromptResponse> {
this.pendingPrompt?.abort();
const pendingSend = new AbortController();
this.pendingPrompt = pendingSend;
const promptId = Math.random().toString(16).slice(2);
const chat = this.chat;
const parts = await this.#resolvePrompt(params.prompt, pendingSend.signal);
let nextMessage: Content | null = { role: 'user', parts };
while (nextMessage !== null) {
if (pendingSend.signal.aborted) {
chat.addHistory(nextMessage);
return { stopReason: 'cancelled' };
}
const functionCalls: FunctionCall[] = [];
try {
const responseStream = await chat.sendMessageStream(
{
message: nextMessage?.parts ?? [],
config: {
abortSignal: pendingSend.signal,
},
},
promptId,
);
nextMessage = null;
for await (const resp of responseStream) {
if (pendingSend.signal.aborted) {
return { stopReason: 'cancelled' };
}
if (resp.candidates && resp.candidates.length > 0) {
const candidate = resp.candidates[0];
for (const part of candidate.content?.parts ?? []) {
if (!part.text) {
continue;
}
const content: acp.ContentBlock = {
type: 'text',
text: part.text,
};
this.sendUpdate({
sessionUpdate: part.thought
? 'agent_thought_chunk'
: 'agent_message_chunk',
content,
});
}
}
if (resp.functionCalls) {
functionCalls.push(...resp.functionCalls);
}
}
} catch (error) {
if (getErrorStatus(error) === 429) {
throw new acp.RequestError(
429,
'Rate limit exceeded. Try again later.',
);
}
throw error;
}
if (functionCalls.length > 0) {
const toolResponseParts: Part[] = [];
for (const fc of functionCalls) {
const response = await this.runTool(pendingSend.signal, promptId, fc);
const parts = Array.isArray(response) ? response : [response];
for (const part of parts) {
if (typeof part === 'string') {
toolResponseParts.push({ text: part });
} else if (part) {
toolResponseParts.push(part);
}
}
}
nextMessage = { role: 'user', parts: toolResponseParts };
}
}
return { stopReason: 'end_turn' };
}
private async sendUpdate(update: acp.SessionUpdate): Promise<void> {
const params: acp.SessionNotification = {
sessionId: this.id,
update,
};
await this.client.sessionUpdate(params);
}
private async runTool(
abortSignal: AbortSignal,
promptId: string,
fc: FunctionCall,
): Promise<PartListUnion> {
const callId = fc.id ?? `${fc.name}-${Date.now()}`;
const args = (fc.args ?? {}) as Record<string, unknown>;
const startTime = Date.now();
const errorResponse = (error: Error) => {
const durationMs = Date.now() - startTime;
logToolCall(this.config, {
'event.name': 'tool_call',
'event.timestamp': new Date().toISOString(),
prompt_id: promptId,
function_name: fc.name ?? '',
function_args: args,
duration_ms: durationMs,
success: false,
error: error.message,
});
return [
{
functionResponse: {
id: callId,
name: fc.name ?? '',
response: { error: error.message },
},
},
];
};
if (!fc.name) {
return errorResponse(new Error('Missing function name'));
}
const toolRegistry: ToolRegistry = await this.config.getToolRegistry();
const tool = toolRegistry.getTool(fc.name as string);
if (!tool) {
return errorResponse(
new Error(`Tool "${fc.name}" not found in registry.`),
);
}
const invocation = tool.build(args);
const confirmationDetails =
await invocation.shouldConfirmExecute(abortSignal);
if (confirmationDetails) {
const content: acp.ToolCallContent[] = [];
if (confirmationDetails.type === 'edit') {
content.push({
type: 'diff',
path: confirmationDetails.fileName,
oldText: confirmationDetails.originalContent,
newText: confirmationDetails.newContent,
});
}
const params: acp.RequestPermissionRequest = {
sessionId: this.id,
options: toPermissionOptions(confirmationDetails),
toolCall: {
toolCallId: callId,
status: 'pending',
title: invocation.getDescription(),
content,
locations: invocation.toolLocations(),
kind: tool.kind,
},
};
const output = await this.client.requestPermission(params);
const outcome =
output.outcome.outcome === 'cancelled'
? ToolConfirmationOutcome.Cancel
: z
.nativeEnum(ToolConfirmationOutcome)
.parse(output.outcome.optionId);
await confirmationDetails.onConfirm(outcome);
switch (outcome) {
case ToolConfirmationOutcome.Cancel:
return errorResponse(
new Error(`Tool "${fc.name}" was canceled by the user.`),
);
case ToolConfirmationOutcome.ProceedOnce:
case ToolConfirmationOutcome.ProceedAlways:
case ToolConfirmationOutcome.ProceedAlwaysServer:
case ToolConfirmationOutcome.ProceedAlwaysTool:
case ToolConfirmationOutcome.ModifyWithEditor:
break;
default: {
const resultOutcome: never = outcome;
throw new Error(`Unexpected: ${resultOutcome}`);
}
}
} else {
await this.sendUpdate({
sessionUpdate: 'tool_call',
toolCallId: callId,
status: 'in_progress',
title: invocation.getDescription(),
content: [],
locations: invocation.toolLocations(),
kind: tool.kind,
});
}
try {
const toolResult: ToolResult = await invocation.execute(abortSignal);
const content = toToolCallContent(toolResult);
await this.sendUpdate({
sessionUpdate: 'tool_call_update',
toolCallId: callId,
status: 'completed',
content: content ? [content] : [],
});
const durationMs = Date.now() - startTime;
logToolCall(this.config, {
'event.name': 'tool_call',
'event.timestamp': new Date().toISOString(),
function_name: fc.name,
function_args: args,
duration_ms: durationMs,
success: true,
prompt_id: promptId,
});
return convertToFunctionResponse(fc.name, callId, toolResult.llmContent);
} catch (e) {
const error = e instanceof Error ? e : new Error(String(e));
await this.sendUpdate({
sessionUpdate: 'tool_call_update',
toolCallId: callId,
status: 'failed',
content: [
{ type: 'content', content: { type: 'text', text: error.message } },
],
});
return errorResponse(error);
}
}
async #resolvePrompt(
message: acp.ContentBlock[],
abortSignal: AbortSignal,
): Promise<Part[]> {
const parts = message.map((part) => {
switch (part.type) {
case 'text':
return { text: part.text };
case 'resource_link':
return {
fileData: {
mimeData: part.mimeType,
name: part.name,
fileUri: part.uri,
},
};
case 'resource': {
return {
fileData: {
mimeData: part.resource.mimeType,
name: part.resource.uri,
fileUri: part.resource.uri,
},
};
}
default: {
throw new Error(`Unexpected chunk type: '${part.type}'`);
}
}
});
const atPathCommandParts = parts.filter((part) => 'fileData' in part);
if (atPathCommandParts.length === 0) {
return parts;
}
// Get centralized file discovery service
const fileDiscovery = this.config.getFileService();
const respectGitIgnore = this.config.getFileFilteringRespectGitIgnore();
const pathSpecsToRead: string[] = [];
const atPathToResolvedSpecMap = new Map<string, string>();
const contentLabelsForDisplay: string[] = [];
const ignoredPaths: string[] = [];
const toolRegistry = await this.config.getToolRegistry();
const readManyFilesTool = toolRegistry.getTool('read_many_files');
const globTool = toolRegistry.getTool('glob');
if (!readManyFilesTool) {
throw new Error('Error: read_many_files tool not found.');
}
for (const atPathPart of atPathCommandParts) {
const pathName = atPathPart.fileData!.fileUri;
// Check if path should be ignored by git
if (fileDiscovery.shouldGitIgnoreFile(pathName)) {
ignoredPaths.push(pathName);
const reason = respectGitIgnore
? 'git-ignored and will be skipped'
: 'ignored by custom patterns';
console.warn(`Path ${pathName} is ${reason}.`);
continue;
}
let currentPathSpec = pathName;
let resolvedSuccessfully = false;
try {
const absolutePath = path.resolve(this.config.getTargetDir(), pathName);
if (isWithinRoot(absolutePath, this.config.getTargetDir())) {
const stats = await fs.stat(absolutePath);
if (stats.isDirectory()) {
currentPathSpec = pathName.endsWith('/')
? `${pathName}**`
: `${pathName}/**`;
this.debug(
`Path ${pathName} resolved to directory, using glob: ${currentPathSpec}`,
);
} else {
this.debug(`Path ${pathName} resolved to file: ${currentPathSpec}`);
}
resolvedSuccessfully = true;
} else {
this.debug(
`Path ${pathName} is outside the project directory. Skipping.`,
);
}
} catch (error) {
if (isNodeError(error) && error.code === 'ENOENT') {
if (this.config.getEnableRecursiveFileSearch() && globTool) {
this.debug(
`Path ${pathName} not found directly, attempting glob search.`,
);
try {
const globResult = await globTool.buildAndExecute(
{
pattern: `**/*${pathName}*`,
path: this.config.getTargetDir(),
},
abortSignal,
);
if (
globResult.llmContent &&
typeof globResult.llmContent === 'string' &&
!globResult.llmContent.startsWith('No files found') &&
!globResult.llmContent.startsWith('Error:')
) {
const lines = globResult.llmContent.split('\n');
if (lines.length > 1 && lines[1]) {
const firstMatchAbsolute = lines[1].trim();
currentPathSpec = path.relative(
this.config.getTargetDir(),
firstMatchAbsolute,
);
this.debug(
`Glob search for ${pathName} found ${firstMatchAbsolute}, using relative path: ${currentPathSpec}`,
);
resolvedSuccessfully = true;
} else {
this.debug(
`Glob search for '**/*${pathName}*' did not return a usable path. Path ${pathName} will be skipped.`,
);
}
} else {
this.debug(
`Glob search for '**/*${pathName}*' found no files or an error. Path ${pathName} will be skipped.`,
);
}
} catch (globError) {
console.error(
`Error during glob search for ${pathName}: ${getErrorMessage(globError)}`,
);
}
} else {
this.debug(
`Glob tool not found. Path ${pathName} will be skipped.`,
);
}
} else {
console.error(
`Error stating path ${pathName}. Path ${pathName} will be skipped.`,
);
}
}
if (resolvedSuccessfully) {
pathSpecsToRead.push(currentPathSpec);
atPathToResolvedSpecMap.set(pathName, currentPathSpec);
contentLabelsForDisplay.push(pathName);
}
}
// Construct the initial part of the query for the LLM
let initialQueryText = '';
for (let i = 0; i < parts.length; i++) {
const chunk = parts[i];
if ('text' in chunk) {
initialQueryText += chunk.text;
} else {
// type === 'atPath'
const resolvedSpec =
chunk.fileData && atPathToResolvedSpecMap.get(chunk.fileData.fileUri);
if (
i > 0 &&
initialQueryText.length > 0 &&
!initialQueryText.endsWith(' ') &&
resolvedSpec
) {
// Add space if previous part was text and didn't end with space, or if previous was @path
const prevPart = parts[i - 1];
if (
'text' in prevPart ||
('fileData' in prevPart &&
atPathToResolvedSpecMap.has(prevPart.fileData!.fileUri))
) {
initialQueryText += ' ';
}
}
if (resolvedSpec) {
initialQueryText += `@${resolvedSpec}`;
} else {
// If not resolved for reading (e.g. lone @ or invalid path that was skipped),
// add the original @-string back, ensuring spacing if it's not the first element.
if (
i > 0 &&
initialQueryText.length > 0 &&
!initialQueryText.endsWith(' ') &&
!chunk.fileData?.fileUri.startsWith(' ')
) {
initialQueryText += ' ';
}
if (chunk.fileData?.fileUri) {
initialQueryText += `@${chunk.fileData.fileUri}`;
}
}
}
}
initialQueryText = initialQueryText.trim();
// Inform user about ignored paths
if (ignoredPaths.length > 0) {
const ignoreType = respectGitIgnore ? 'git-ignored' : 'custom-ignored';
this.debug(
`Ignored ${ignoredPaths.length} ${ignoreType} files: ${ignoredPaths.join(', ')}`,
);
}
// Fallback for lone "@" or completely invalid @-commands resulting in empty initialQueryText
if (pathSpecsToRead.length === 0) {
console.warn('No valid file paths found in @ commands to read.');
return [{ text: initialQueryText }];
}
const processedQueryParts: Part[] = [{ text: initialQueryText }];
const toolArgs = {
paths: pathSpecsToRead,
respectGitIgnore, // Use configuration setting
};
const callId = `${readManyFilesTool.name}-${Date.now()}`;
try {
const invocation = readManyFilesTool.build(toolArgs);
await this.sendUpdate({
sessionUpdate: 'tool_call',
toolCallId: callId,
status: 'in_progress',
title: invocation.getDescription(),
content: [],
locations: invocation.toolLocations(),
kind: readManyFilesTool.kind,
});
const result = await invocation.execute(abortSignal);
const content = toToolCallContent(result) || {
type: 'content',
content: {
type: 'text',
text: `Successfully read: ${contentLabelsForDisplay.join(', ')}`,
},
};
await this.sendUpdate({
sessionUpdate: 'tool_call_update',
toolCallId: callId,
status: 'completed',
content: content ? [content] : [],
});
if (Array.isArray(result.llmContent)) {
const fileContentRegex = /^--- (.*?) ---\n\n([\s\S]*?)\n\n$/;
processedQueryParts.push({
text: '\n--- Content from referenced files ---',
});
for (const part of result.llmContent) {
if (typeof part === 'string') {
const match = fileContentRegex.exec(part);
if (match) {
const filePathSpecInContent = match[1]; // This is a resolved pathSpec
const fileActualContent = match[2].trim();
processedQueryParts.push({
text: `\nContent from @${filePathSpecInContent}:\n`,
});
processedQueryParts.push({ text: fileActualContent });
} else {
processedQueryParts.push({ text: part });
}
} else {
// part is a Part object.
processedQueryParts.push(part);
}
}
processedQueryParts.push({ text: '\n--- End of content ---' });
} else {
console.warn(
'read_many_files tool returned no content or empty content.',
);
}
return processedQueryParts;
} catch (error: unknown) {
await this.sendUpdate({
sessionUpdate: 'tool_call_update',
toolCallId: callId,
status: 'failed',
content: [
{
type: 'content',
content: {
type: 'text',
text: `Error reading files (${contentLabelsForDisplay.join(', ')}): ${getErrorMessage(error)}`,
},
},
],
});
throw error;
}
}
debug(msg: string) {
if (this.config.getDebugMode()) {
console.warn(msg);
}
}
}
function toToolCallContent(toolResult: ToolResult): acp.ToolCallContent | null {
if (toolResult.returnDisplay) {
if (typeof toolResult.returnDisplay === 'string') {
return {
type: 'content',
content: { type: 'text', text: toolResult.returnDisplay },
};
} else {
return {
type: 'diff',
path: toolResult.returnDisplay.fileName,
oldText: toolResult.returnDisplay.originalContent,
newText: toolResult.returnDisplay.newContent,
};
}
} else {
return null;
}
}
const basicPermissionOptions = [
{
optionId: ToolConfirmationOutcome.ProceedOnce,
name: 'Allow',
kind: 'allow_once',
},
{
optionId: ToolConfirmationOutcome.Cancel,
name: 'Reject',
kind: 'reject_once',
},
] as const;
function toPermissionOptions(
confirmation: ToolCallConfirmationDetails,
): acp.PermissionOption[] {
switch (confirmation.type) {
case 'edit':
return [
{
optionId: ToolConfirmationOutcome.ProceedAlways,
name: 'Allow All Edits',
kind: 'allow_always',
},
...basicPermissionOptions,
];
case 'exec':
return [
{
optionId: ToolConfirmationOutcome.ProceedAlways,
name: `Always Allow ${confirmation.rootCommand}`,
kind: 'allow_always',
},
...basicPermissionOptions,
];
case 'mcp':
return [
{
optionId: ToolConfirmationOutcome.ProceedAlwaysServer,
name: `Always Allow ${confirmation.serverName}`,
kind: 'allow_always',
},
{
optionId: ToolConfirmationOutcome.ProceedAlwaysTool,
name: `Always Allow ${confirmation.toolName}`,
kind: 'allow_always',
},
...basicPermissionOptions,
];
case 'info':
return [
{
optionId: ToolConfirmationOutcome.ProceedAlways,
name: `Always Allow`,
kind: 'allow_always',
},
...basicPermissionOptions,
];
default: {
const unreachable: never = confirmation;
throw new Error(`Unexpected: ${unreachable}`);
}
}
}