agent-ecosystem/src/main/services/team/TeamMcpConfigBuilder.ts

816 lines
27 KiB
TypeScript

import { execCli } from '@main/utils/childProcess';
import { buildMergedCliPath } from '@main/utils/cliPathMerge';
import {
getClaudeBasePath,
getMcpConfigsBasePath,
getMcpServerBasePath,
} from '@main/utils/pathDecoder';
import { resolveInteractiveShellEnv } from '@main/utils/shellEnv';
import { createLogger } from '@shared/utils/logger';
import { resolveTeamMemberMcpScopes } from '@shared/utils/teamMemberMcpPolicy';
import { randomUUID } from 'crypto';
import * as fs from 'fs';
import * as path from 'path';
import { McpConfigStateReader } from '../extensions/runtime/McpConfigStateReader';
import { atomicWriteAsync } from './atomicWrite';
import type { TeamMemberMcpPolicy, TeamMemberMcpScope } from '@shared/types';
export interface McpLaunchSpec {
command: string;
args: string[];
env?: Record<string, string>;
}
export interface McpLaunchSpecResolveProgress {
phase: string;
message: string;
}
export interface McpLaunchSpecResolveOptions {
onProgress?: (progress: McpLaunchSpecResolveProgress) => void;
}
interface WriteMcpConfigOptions {
mcpPolicy?: TeamMemberMcpPolicy;
controlApiBaseUrl?: string | null;
}
const MCP_SERVER_NAME = 'agent-teams';
const MCP_CLAUDE_DIR_ENV = 'AGENT_TEAMS_MCP_CLAUDE_DIR';
const MCP_CONTROL_URL_ENV = 'CLAUDE_TEAM_CONTROL_URL';
const ELECTRON_RUN_AS_NODE_ENV = 'ELECTRON_RUN_AS_NODE';
const logger = createLogger('Service:TeamMcpConfigBuilder');
const MCP_CONFIG_PREFIX = 'agent-teams-mcp-';
const MCP_CONFIG_REMOVE_RETRY_DELAYS_MS = [25, 75, 150] as const;
const NODE_RUNTIME_PROBE_TIMEOUT_MS = 5_000;
const ELECTRON_NODE_RUNTIME_PROBE_TIMEOUT_MS = 5_000;
const MIN_MCP_NODE_MAJOR_VERSION = 20;
const NODE_RUNTIME_PROBE_SCRIPT =
'process.stdout.write(JSON.stringify({execPath:process.execPath,version:process.versions.node}))';
/**
* Stale configs older than this are removed on startup (best-effort).
* 7 days is intentionally long: respawnAfterAuthFailure() reuses saved
* --mcp-config paths, so shorter TTLs risk deleting configs still needed
* by long-running or retrying sessions in other app instances.
*/
const MCP_CONFIG_STALE_MAX_AGE_MS = 7 * 24 * 60 * 60 * 1000;
type McpServerConfig = Record<string, unknown>;
interface NodeRuntimeProbeMetadata {
path: string;
version: string;
}
const MCP_CONFIG_SCOPE_PRECEDENCE: readonly TeamMemberMcpScope[] = ['user', 'project', 'local'];
function isPackagedApp(): boolean {
try {
// eslint-disable-next-line @typescript-eslint/no-require-imports
const { app } = require('electron') as typeof import('electron');
return app.isPackaged;
} catch {
return false;
}
}
function getAppVersion(): string {
try {
// eslint-disable-next-line @typescript-eslint/no-require-imports
const { app } = require('electron') as typeof import('electron');
return app.getVersion();
} catch {
return '0.0.0-dev';
}
}
/**
* In a packaged Electron build the mcp-server bundle lives under
* `process.resourcesPath/mcp-server/index.js` (copied via extraResources).
* This is the fallback location when the stable copy is unavailable.
*/
function getPackagedServerEntry(): string {
return path.join(process.resourcesPath, 'mcp-server', 'index.js');
}
function getWorkspaceRoot(): string {
return process.cwd();
}
function shouldUsePackagedElectronNodeRuntime(): boolean {
return (
isPackagedApp() && typeof process.execPath === 'string' && process.execPath.trim().length > 0
);
}
function getPackagedElectronNodeEnv(): Record<string, string> {
return {
[ELECTRON_RUN_AS_NODE_ENV]: '1',
};
}
function buildPackagedElectronNodeLaunchSpec(entry: string): McpLaunchSpec {
return {
command: process.execPath.trim(),
args: [entry],
env: getPackagedElectronNodeEnv(),
};
}
function getWorkspaceMcpServerDir(): string {
return path.join(getWorkspaceRoot(), 'mcp-server');
}
function getBuiltServerEntry(): string {
return path.join(getWorkspaceMcpServerDir(), 'dist', 'index.js');
}
function getSourceServerEntry(): string {
return path.join(getWorkspaceMcpServerDir(), 'src', 'index.ts');
}
function getWorkspaceTsxPackageJsonCandidates(): string[] {
return [
path.join(getWorkspaceMcpServerDir(), 'node_modules', 'tsx', 'package.json'),
path.join(getWorkspaceRoot(), 'node_modules', 'tsx', 'package.json'),
];
}
function resolvePackageBin(
packageJsonPath: string,
binName: string,
packageJsonRaw: string
): string | null {
const packageJson = JSON.parse(packageJsonRaw) as { bin?: string | Record<string, string> };
const bin = typeof packageJson.bin === 'string' ? packageJson.bin : packageJson.bin?.[binName];
if (!bin) return null;
return path.resolve(path.dirname(packageJsonPath), bin);
}
async function pathExists(targetPath: string): Promise<boolean> {
try {
await fs.promises.access(targetPath, fs.constants.F_OK);
return true;
} catch {
return false;
}
}
async function resolveWorkspaceTsxCli(checked: string[]): Promise<string | null> {
for (const packageJsonPath of getWorkspaceTsxPackageJsonCandidates()) {
checked.push(packageJsonPath);
if (!(await pathExists(packageJsonPath))) {
continue;
}
try {
const tsxCli = resolvePackageBin(
packageJsonPath,
'tsx',
await fs.promises.readFile(packageJsonPath, 'utf8')
);
if (!tsxCli) {
logger.warn(`tsx package has no bin.tsx entry at ${packageJsonPath}`);
continue;
}
checked.push(tsxCli);
if (await pathExists(tsxCli)) {
return tsxCli;
}
} catch (error) {
logger.warn(
`Failed to resolve tsx CLI from ${packageJsonPath}: ${
error instanceof Error ? error.message : String(error)
}`
);
}
}
return null;
}
function shouldRetryMcpConfigRemoval(error: NodeJS.ErrnoException): boolean {
return error.code === 'EPERM' || error.code === 'EBUSY';
}
async function waitForRetry(delayMs: number): Promise<void> {
await new Promise((resolve) => setTimeout(resolve, delayMs));
}
/** Check that both index.js and package.json exist in a directory. */
async function hasValidServerCopy(dir: string): Promise<boolean> {
return (
(await pathExists(path.join(dir, 'index.js'))) &&
(await pathExists(path.join(dir, 'package.json')))
);
}
let _resolvedNodePath: string | undefined;
let _packagedElectronNodeRuntimeProbe: { ok: true } | { ok: false; error: unknown } | undefined;
export function clearResolvedNodePathForTests(): void {
_resolvedNodePath = undefined;
_packagedElectronNodeRuntimeProbe = undefined;
}
function emitProgress(
options: McpLaunchSpecResolveOptions | undefined,
phase: string,
message: string
): void {
options?.onProgress?.({ phase, message });
}
function stringifyError(error: unknown): string {
return error instanceof Error ? error.message : String(error);
}
function looksLikeNodeBinaryPath(candidate: string | undefined): candidate is string {
if (!candidate?.trim()) {
return false;
}
return /^node(?:-\d+)?(?:\.exe)?$/i.test(path.basename(candidate.trim()));
}
function getNodeRuntimeCommandCandidates(): string[] {
const candidates = [
process.env.NODE_BINARY,
'node',
process.env.npm_node_execpath,
looksLikeNodeBinaryPath(process.execPath) ? process.execPath : undefined,
];
const seen = new Set<string>();
return candidates.flatMap((candidate) => {
const normalized = candidate?.trim();
if (!normalized || seen.has(normalized)) {
return [];
}
seen.add(normalized);
return [normalized];
});
}
function shouldPreferShellNodeProbe(): boolean {
if (process.platform === 'win32') {
return false;
}
const pathValue = process.env.PATH?.trim();
if (!pathValue) {
return true;
}
const minimalGuiPathEntries = new Set(['/usr/bin', '/bin', '/usr/sbin', '/sbin']);
const entries = pathValue
.split(path.delimiter)
.map((entry) => entry.trim())
.filter(Boolean);
return (
entries.length > 0 && entries.every((entry) => minimalGuiPathEntries.has(path.resolve(entry)))
);
}
function mergePathValues(...values: (string | undefined)[]): string | undefined {
const seen = new Set<string>();
const merged: string[] = [];
for (const value of values) {
if (!value) {
continue;
}
for (const segment of value.split(path.delimiter)) {
if (!segment || seen.has(segment)) {
continue;
}
seen.add(segment);
merged.push(segment);
}
}
return merged.length > 0 ? merged.join(path.delimiter) : undefined;
}
function parseNodeMajorVersion(version: string): number | null {
const match = /^v?(\d+)(?:\.|$)/.exec(version.trim());
if (!match) {
return null;
}
const major = Number.parseInt(match[1] ?? '', 10);
return Number.isFinite(major) ? major : null;
}
function parseNodeRuntimeProbeMetadata(stdout: string, command: string): NodeRuntimeProbeMetadata {
const trimmed = stdout.trim();
if (!trimmed) {
throw new Error(`${command} did not report Node.js runtime metadata`);
}
let parsed: unknown;
try {
parsed = JSON.parse(trimmed);
} catch {
throw new Error(`${command} reported invalid Node.js runtime metadata`);
}
if (parsed === null || typeof parsed !== 'object') {
throw new Error(`${command} reported invalid Node.js runtime metadata`);
}
const metadata = parsed as { execPath?: unknown; version?: unknown };
const resolvedPath = typeof metadata.execPath === 'string' ? metadata.execPath.trim() : '';
if (!resolvedPath) {
throw new Error(`${command} did not report process.execPath`);
}
const version = typeof metadata.version === 'string' ? metadata.version.trim() : '';
if (!version) {
throw new Error(`${command} did not report process.versions.node`);
}
return { path: resolvedPath, version };
}
function assertSupportedMcpNodeRuntime(command: string, metadata: NodeRuntimeProbeMetadata): void {
const major = parseNodeMajorVersion(metadata.version);
if (major === null || major < MIN_MCP_NODE_MAJOR_VERSION) {
throw new Error(
`${command} resolved ${metadata.path} with Node.js ${metadata.version}; Agent Teams MCP requires Node.js ${MIN_MCP_NODE_MAJOR_VERSION}+`
);
}
}
function isWriteMcpConfigOptions(value: unknown): value is WriteMcpConfigOptions {
return (
value !== null &&
typeof value === 'object' &&
('mcpPolicy' in value || 'controlApiBaseUrl' in value)
);
}
function buildNodeResolveEnv(shellEnv: NodeJS.ProcessEnv): NodeJS.ProcessEnv {
const env: NodeJS.ProcessEnv = {
...process.env,
...shellEnv,
};
const mergedPath = mergePathValues(shellEnv.PATH, buildMergedCliPath(), process.env.PATH);
if (mergedPath) {
env.PATH = mergedPath;
}
return env;
}
async function probeNodeRuntimePath(
env: NodeJS.ProcessEnv
): Promise<{ ok: true; path: string } | { ok: false; error: unknown }> {
let lastError: unknown = null;
for (const command of getNodeRuntimeCommandCandidates()) {
try {
const { stdout } = await execCli(command, ['-e', NODE_RUNTIME_PROBE_SCRIPT], {
encoding: 'utf-8',
timeout: NODE_RUNTIME_PROBE_TIMEOUT_MS,
env,
});
const metadata = parseNodeRuntimeProbeMetadata(stdout, command);
assertSupportedMcpNodeRuntime(command, metadata);
return { ok: true, path: metadata.path };
} catch (error) {
lastError = error;
}
}
return { ok: false, error: lastError ?? 'no Node.js candidates were available' };
}
async function probePackagedElectronNodeRuntime(
options?: McpLaunchSpecResolveOptions
): Promise<{ ok: true } | { ok: false; error: unknown }> {
if (_packagedElectronNodeRuntimeProbe) {
return _packagedElectronNodeRuntimeProbe;
}
emitProgress(options, 'electron-node-runtime', 'Checking bundled Electron Node runtime...');
try {
const { stdout } = await execCli(
process.execPath.trim(),
['-e', 'process.stdout.write("agent-teams-electron-node-ok")'],
{
encoding: 'utf-8',
timeout: ELECTRON_NODE_RUNTIME_PROBE_TIMEOUT_MS,
env: {
...process.env,
...getPackagedElectronNodeEnv(),
},
}
);
if (stdout.trim() !== 'agent-teams-electron-node-ok') {
throw new Error('Electron Node runtime probe did not return the expected marker');
}
_packagedElectronNodeRuntimeProbe = { ok: true };
} catch (error) {
_packagedElectronNodeRuntimeProbe = { ok: false, error };
}
return _packagedElectronNodeRuntimeProbe;
}
async function probeShellNodeRuntimePath(
options?: McpLaunchSpecResolveOptions
): Promise<{ ok: true; path: string } | { ok: false; error: unknown }> {
let shellEnv: NodeJS.ProcessEnv = {};
try {
shellEnv = await resolveInteractiveShellEnv({
source: 'mcp-node-runtime',
onProgress: options?.onProgress
? ({ phase, message }) => emitProgress(options, `shell-${phase}`, message)
: undefined,
});
} catch (error) {
logger.warn(`Failed to resolve shell env before Node.js lookup: ${stringifyError(error)}`);
}
return probeNodeRuntimePath(buildNodeResolveEnv(shellEnv));
}
/**
* Find the real `node` binary path. In Electron, process.execPath is the
* Electron binary — NOT node — so we must resolve node separately.
* Uses the user's shell/enriched PATH so packaged GUI launches do not depend
* on the minimal Finder/Dock PATH.
*/
async function resolveNodePath(options?: McpLaunchSpecResolveOptions): Promise<string> {
if (_resolvedNodePath) return _resolvedNodePath;
emitProgress(options, 'node-runtime', 'Resolving Node.js runtime for MCP server...');
const preferShellNodeProbe = shouldPreferShellNodeProbe();
if (preferShellNodeProbe && !process.env.NODE_BINARY?.trim()) {
emitProgress(options, 'node-runtime-shell-fallback', 'Trying login shell Node.js runtime...');
const shellProbe = await probeShellNodeRuntimePath(options);
if (shellProbe.ok) {
_resolvedNodePath = shellProbe.path;
emitProgress(options, 'node-runtime-found', 'Using resolved Node.js runtime...');
return _resolvedNodePath;
}
}
const fastProbe = await probeNodeRuntimePath(buildNodeResolveEnv({}));
if (fastProbe.ok) {
_resolvedNodePath = fastProbe.path;
emitProgress(options, 'node-runtime-found', 'Using resolved Node.js runtime...');
return _resolvedNodePath;
}
if (!preferShellNodeProbe) {
emitProgress(options, 'node-runtime-shell-fallback', 'Trying login shell Node.js runtime...');
const shellProbe = await probeShellNodeRuntimePath(options);
if (shellProbe.ok) {
_resolvedNodePath = shellProbe.path;
emitProgress(options, 'node-runtime-found', 'Using resolved Node.js runtime...');
return _resolvedNodePath;
}
emitProgress(options, 'node-runtime-missing', 'Node.js runtime for MCP server was not found.');
throw new Error(
`Node.js runtime for Agent Teams MCP was not found. Ensure Node.js is installed and available from the login shell PATH. Last error: ${
shellProbe.error ? stringifyError(shellProbe.error) : stringifyError(fastProbe.error)
}`
);
}
emitProgress(options, 'node-runtime-missing', 'Node.js runtime for MCP server was not found.');
throw new Error(
`Node.js runtime for Agent Teams MCP was not found. Ensure Node.js is installed and available from the login shell PATH. Last error: ${stringifyError(
fastProbe.error
)}`
);
}
/**
* For packaged builds, copy the MCP server to a stable, writable location
* under userData so the server runs from a non-FUSE path (fixes AppImage).
*
* Uses a versioned subdirectory + atomic rename to avoid partial state:
* userData/mcp-server/<appVersion>/index.js
* userData/mcp-server/<appVersion>/package.json
*
* Returns the resolved index.js path (stable copy or resourcesPath fallback).
*/
async function resolvePackagedServerEntry(options?: McpLaunchSpecResolveOptions): Promise<string> {
const fallbackEntry = getPackagedServerEntry();
if (!isPackagedApp()) return fallbackEntry;
emitProgress(options, 'packaged-server', 'Checking packaged MCP server...');
const appVersion = getAppVersion();
const baseDir = getMcpServerBasePath();
const finalDir = path.join(baseDir, appVersion);
const finalEntry = path.join(finalDir, 'index.js');
// Reuse existing valid copy
if (await hasValidServerCopy(finalDir)) {
emitProgress(options, 'packaged-server-reuse', 'Using cached MCP server copy...');
return finalEntry;
}
// Heal invalid finalDir (partial state from previous crash)
try {
if ((await pathExists(finalDir)) && !(await hasValidServerCopy(finalDir))) {
logger.warn(`Removing invalid MCP server copy at ${finalDir}`);
await fs.promises.rm(finalDir, { recursive: true, force: true });
}
} catch {
/* best-effort heal */
}
try {
const sourceDir = path.join(process.resourcesPath, 'mcp-server');
if (!(await hasValidServerCopy(sourceDir))) {
logger.warn(`Packaged MCP server missing in resourcesPath: ${sourceDir}`);
return fallbackEntry;
}
emitProgress(options, 'packaged-server-copy', 'Copying MCP server to app data...');
// Atomic: copy to temp dir, then rename to final
const tmpDir = path.join(baseDir, `${appVersion}.tmp-${process.pid}-${randomUUID()}`);
await fs.promises.mkdir(tmpDir, { recursive: true });
await fs.promises.copyFile(path.join(sourceDir, 'index.js'), path.join(tmpDir, 'index.js'));
await fs.promises.copyFile(
path.join(sourceDir, 'package.json'),
path.join(tmpDir, 'package.json')
);
try {
await fs.promises.rename(tmpDir, finalDir);
} catch {
// finalDir appeared between our check and rename (another process won the race)
await fs.promises.rm(tmpDir, { recursive: true, force: true }).catch(() => {});
if (await hasValidServerCopy(finalDir)) {
logger.info(`Using stable MCP server copy at ${finalDir} (concurrent copy resolved)`);
return finalEntry;
}
// Neither our copy nor the winner's copy is valid — fallback
logger.warn(`Concurrent MCP server copy failed, using resourcesPath fallback`);
return fallbackEntry;
}
logger.info(`MCP server copied to stable path ${finalDir} (v${appVersion})`);
emitProgress(options, 'packaged-server-ready', 'MCP server copy is ready...');
return finalEntry;
} catch (error) {
logger.warn(
`Failed to copy MCP server to stable path, using resourcesPath fallback: ${
error instanceof Error ? error.message : String(error)
}`
);
return fallbackEntry;
}
}
export async function resolveAgentTeamsMcpLaunchSpec(
options: McpLaunchSpecResolveOptions = {}
): Promise<McpLaunchSpec> {
const checked: string[] = [];
// 1. Packaged Electron app — prefer stable copy, fall back to resourcesPath
if (isPackagedApp()) {
const packagedEntry = await resolvePackagedServerEntry(options);
checked.push(packagedEntry);
if (await pathExists(packagedEntry)) {
if (shouldUsePackagedElectronNodeRuntime()) {
const electronProbe = await probePackagedElectronNodeRuntime(options);
if (electronProbe.ok) {
emitProgress(
options,
'electron-node-runtime-found',
'Using bundled Electron Node runtime...'
);
return buildPackagedElectronNodeLaunchSpec(packagedEntry);
}
logger.warn(
`Bundled Electron Node runtime is unavailable for Agent Teams MCP; falling back to Node.js runtime: ${stringifyError(
electronProbe.error
)}`
);
emitProgress(
options,
'electron-node-runtime-fallback',
'Bundled Electron Node runtime unavailable, resolving Node.js fallback...'
);
}
return {
command: await resolveNodePath(options),
args: [packagedEntry],
};
}
logger.warn(`Packaged MCP entry not found at ${packagedEntry}, falling back to workspace`);
}
// 2. Dev mode — prefer source so pnpm dev always sees current MCP tools
const sourceEntry = getSourceServerEntry();
emitProgress(options, 'source-entry', 'Checking MCP source entry...');
checked.push(sourceEntry);
if (await pathExists(sourceEntry)) {
emitProgress(options, 'tsx-runner', 'Resolving MCP TypeScript runner...');
const tsxCli = await resolveWorkspaceTsxCli(checked);
if (tsxCli) {
return {
command: await resolveNodePath(options),
args: [tsxCli, sourceEntry],
};
}
}
// 3. Dev mode fallback — use built dist when source execution is unavailable
const builtEntry = getBuiltServerEntry();
emitProgress(options, 'built-entry', 'Checking built MCP server entry...');
checked.push(builtEntry);
if (await pathExists(builtEntry)) {
return {
command: await resolveNodePath(options),
args: [builtEntry],
};
}
throw new Error(
`agent-teams-mcp entrypoint not found. Checked paths:\n${checked.map((p) => ` - ${p}`).join('\n')}`
);
}
export class TeamMcpConfigBuilder {
async writeConfigFile(projectPath?: string, options?: WriteMcpConfigOptions): Promise<string>;
async writeConfigFile(projectPath?: string, mcpPolicy?: TeamMemberMcpPolicy): Promise<string>;
async writeConfigFile(
projectPath?: string,
optionsOrPolicy?: WriteMcpConfigOptions | TeamMemberMcpPolicy
): Promise<string> {
const launchSpec = await resolveAgentTeamsMcpLaunchSpec();
const configDir = getMcpConfigsBasePath();
const configPath = path.join(
configDir,
`${MCP_CONFIG_PREFIX}${process.pid}-${Date.now()}-${randomUUID()}.json`
);
const options = isWriteMcpConfigOptions(optionsOrPolicy)
? optionsOrPolicy
: ({
mcpPolicy: optionsOrPolicy,
} satisfies WriteMcpConfigOptions);
const mcpPolicy = options.mcpPolicy;
const controlApiBaseUrl =
options.controlApiBaseUrl?.trim() || process.env[MCP_CONTROL_URL_ENV]?.trim() || '';
// Keep the team bootstrap config minimal: recent Claude sidechain runs can
// lose the agent-teams tool surface when we inline large user MCP bundles
// into the generated --mcp-config. User/project/local MCP remain loaded
// through Claude's native settings sources.
const generatedServers: Record<string, McpServerConfig> = Object.create(null);
generatedServers[MCP_SERVER_NAME] = {
command: launchSpec.command,
args: launchSpec.args,
enabled: true,
env: {
...launchSpec.env,
[MCP_CLAUDE_DIR_ENV]: getClaudeBasePath(),
...(controlApiBaseUrl ? { [MCP_CONTROL_URL_ENV]: controlApiBaseUrl } : {}),
},
};
if (mcpPolicy?.mode === 'strictAllowlist') {
for (const [name, config] of Object.entries(
await this.readAllowlistedServers(projectPath, mcpPolicy)
)) {
generatedServers[name] = config;
}
}
await fs.promises.mkdir(configDir, { recursive: true });
await atomicWriteAsync(
configPath,
JSON.stringify(
{
mcpServers: generatedServers,
},
null,
2
)
);
return configPath;
}
private async readAllowlistedServers(
projectPath: string | undefined,
policy: TeamMemberMcpPolicy
): Promise<Record<string, McpServerConfig>> {
const allowlist = new Set(
(policy.serverNames ?? [])
.map((name) => name.trim())
.filter(Boolean)
.map((name) => name.toLowerCase())
);
if (allowlist.size === 0) {
return {};
}
const scopes = resolveTeamMemberMcpScopes(policy);
const entries = await new McpConfigStateReader().readConfigured(projectPath);
const byScope = new Map<TeamMemberMcpScope, typeof entries>();
for (const scope of MCP_CONFIG_SCOPE_PRECEDENCE) {
byScope.set(scope, []);
}
for (const entry of entries) {
if (!scopes[entry.scope]) {
continue;
}
byScope.get(entry.scope)?.push(entry);
}
const selected: Record<string, McpServerConfig> = Object.create(null);
for (const scope of MCP_CONFIG_SCOPE_PRECEDENCE) {
for (const entry of byScope.get(scope) ?? []) {
if (entry.name.toLowerCase() === MCP_SERVER_NAME) {
continue;
}
if (allowlist.has(entry.name.toLowerCase())) {
selected[entry.name] = entry.config;
}
}
}
return selected;
}
/** Delete a single MCP config file (best-effort). */
async removeConfigFile(configPath: string): Promise<void> {
for (let attempt = 0; attempt <= MCP_CONFIG_REMOVE_RETRY_DELAYS_MS.length; attempt += 1) {
try {
await fs.promises.unlink(configPath);
return;
} catch (error) {
const err = error as NodeJS.ErrnoException;
if (err.code === 'ENOENT') {
return;
}
if (
shouldRetryMcpConfigRemoval(err) &&
attempt < MCP_CONFIG_REMOVE_RETRY_DELAYS_MS.length
) {
await waitForRetry(MCP_CONFIG_REMOVE_RETRY_DELAYS_MS[attempt]);
continue;
}
if (shouldRetryMcpConfigRemoval(err)) {
logger.debug(`Deferred MCP config cleanup for ${configPath}: ${err.message}`);
return;
}
logger.warn(`Failed to remove MCP config ${configPath}: ${err.message}`);
return;
}
}
}
/** Remove config files owned by current process (shutdown best-effort). */
async gcOwnConfigs(): Promise<void> {
const configDir = getMcpConfigsBasePath();
const ownPrefix = `${MCP_CONFIG_PREFIX}${process.pid}-`;
try {
const entries = await fs.promises.readdir(configDir);
await Promise.all(
entries
.filter((n) => n.startsWith(ownPrefix) && n.endsWith('.json'))
.map((n) => fs.promises.unlink(path.join(configDir, n)).catch(() => {}))
);
} catch (error) {
const err = error as NodeJS.ErrnoException;
if (err.code !== 'ENOENT') {
logger.warn(`Failed to GC own MCP configs: ${err.message}`);
}
}
}
/**
* Remove stale config files older than maxAgeMs (startup GC, best-effort).
* Risk is reduced but not eliminated for multi-instance scenarios:
* respawnAfterAuthFailure() has its own recovery to regenerate deleted configs.
*/
async gcStaleConfigs(maxAgeMs = MCP_CONFIG_STALE_MAX_AGE_MS): Promise<void> {
const configDir = getMcpConfigsBasePath();
try {
const entries = await fs.promises.readdir(configDir);
await Promise.all(
entries
.filter((n) => n.startsWith(MCP_CONFIG_PREFIX) && n.endsWith('.json'))
.map(async (n) => {
const fullPath = path.join(configDir, n);
try {
const stat = await fs.promises.stat(fullPath);
if (Date.now() - stat.mtimeMs > maxAgeMs) {
await fs.promises.unlink(fullPath);
}
} catch {
/* ignore per-file errors */
}
})
);
} catch (error) {
const err = error as NodeJS.ErrnoException;
if (err.code !== 'ENOENT') {
logger.warn(`Failed to GC stale MCP configs: ${err.message}`);
}
}
}
}