feat(subagent): add Claude Code provider

This commit is contained in:
pku-xht
2026-08-04 20:57:55 +08:00
parent c09b20f96b
commit be56f64b7a
54 changed files with 3014 additions and 220 deletions

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import { join } from 'node:path'
import { fileURLToPath } from 'node:url'
import { describe, expect, it } from 'vitest'
import {
LOADER_SMOKE_TEST_TIMEOUT_MS,
runLoaderSmoke,
} from '@deepseek-ai/dsh-loader-smoke'
const fixtureDir = fileURLToPath(new URL(
'../../../../examples/acp-agent/tests/fixtures/subagent/subagent-claude-code/',
import.meta.url,
))
const driver = join(fixtureDir, 'driver.ts')
const configPath = join(fixtureDir, 'cordis.yml')
const repoTsconfig = fileURLToPath(new URL('../../../../tsconfig.json', import.meta.url))
describe('product-provider public Loader composition', () => {
it('loads both opt-in packages and foreground tools without starting either product', async () => {
const { stdout, stderr } = await runLoaderSmoke({
label: 'product-provider Loader composition',
tempDirPrefix: 'dsh-product-provider-loader-',
binScript: driver,
libBinScript: driver,
configPath,
tsconfigPath: repoTsconfig,
env: {
// Loading either optional package must not probe or start its binary.
PATH: '',
},
})
expect(stderr).toBe('')
expect(JSON.parse(stdout)).toEqual({
registeredProviders: ['codex', 'claude-code'],
providers: [
{
name: 'codex',
capabilities: {
outputSchema: false,
depthLimit: false,
toolFilter: false,
persona: false,
},
inheritsParentContext: false,
},
{
name: 'claude-code',
capabilities: {
outputSchema: false,
depthLimit: false,
toolFilter: false,
persona: false,
},
inheritsParentContext: false,
},
],
tools: [
{
name: 'subagent_codex',
parameterNames: ['description', 'prompt'],
required: ['description', 'prompt'],
},
{
name: 'subagent_claude_code',
parameterNames: ['description', 'prompt'],
required: ['description', 'prompt'],
},
],
starts: 0,
})
}, LOADER_SMOKE_TEST_TIMEOUT_MS)
})

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import { createServer, type IncomingHttpHeaders, type ServerResponse } from 'node:http'
/** One deterministic response emitted by the package-private Messages server. */
export type MessagesBehavior =
| { readonly kind: 'complete'; readonly text: string }
| { readonly kind: 'hold' }
/** One recorded Anthropic Messages request. */
interface RecordedMessagesRequest {
readonly method: string
readonly path: string
readonly headers: IncomingHttpHeaders
readonly body: Record<string, unknown>
}
/** Running package-private Anthropic Messages fixture. */
export interface MessagesFixture {
readonly baseUrl: string
readonly requests: RecordedMessagesRequest[]
readonly requestStarted: Promise<void>
close(): Promise<void>
}
function event(
response: ServerResponse,
type: string,
payload: Record<string, unknown>,
): void {
response.write(`event: ${type}\ndata: ${JSON.stringify(payload)}\n\n`)
}
function complete(
response: ServerResponse,
body: Record<string, unknown>,
text: string,
): void {
const model = typeof body.model === 'string' ? body.model : 'fixture-model'
response.writeHead(200, {
'content-type': 'text/event-stream',
'cache-control': 'no-cache',
connection: 'keep-alive',
})
event(response, 'message_start', {
type: 'message_start',
message: {
id: 'msg_dsh_fixture',
type: 'message',
role: 'assistant',
model,
content: [],
stop_reason: null,
stop_sequence: null,
usage: {
input_tokens: 7,
output_tokens: 0,
cache_creation_input_tokens: 0,
cache_read_input_tokens: 0,
},
},
})
event(response, 'content_block_start', {
type: 'content_block_start',
index: 0,
content_block: { type: 'text', text: '' },
})
event(response, 'content_block_delta', {
type: 'content_block_delta',
index: 0,
delta: { type: 'text_delta', text },
})
event(response, 'content_block_stop', {
type: 'content_block_stop',
index: 0,
})
event(response, 'message_delta', {
type: 'message_delta',
delta: { stop_reason: 'end_turn', stop_sequence: null },
usage: { output_tokens: 1 },
})
event(response, 'message_stop', { type: 'message_stop' })
response.end()
}
/**
* Start a loopback-only Anthropic Messages SSE fixture.
* @param script - one behavior per Messages request.
* @returns the bound server and its recorded requests.
*/
export async function startMessagesFixture(
script: readonly MessagesBehavior[],
): Promise<MessagesFixture> {
const requests: RecordedMessagesRequest[] = []
let requestStartedResolve!: () => void
const requestStarted = new Promise<void>((resolve) => {
requestStartedResolve = resolve
})
let behaviorIndex = 0
const server = createServer((request, response) => {
const chunks: Buffer[] = []
request.on('data', (chunk: Buffer) => { chunks.push(chunk) })
request.on('end', () => {
const path = request.url ?? ''
if (!path.startsWith('/v1/messages')) {
response.writeHead(404, { 'content-type': 'application/json' })
response.end(JSON.stringify({
type: 'error',
error: { type: 'not_found_error', message: `unexpected path ${path}` },
}))
return
}
const text = Buffer.concat(chunks).toString('utf8')
const body = JSON.parse(text) as Record<string, unknown>
requests.push({
method: request.method ?? '',
path,
headers: request.headers,
body,
})
requestStartedResolve()
const behavior = script[behaviorIndex++]
if (behavior === undefined) {
response.writeHead(500, { 'content-type': 'application/json' })
response.end(JSON.stringify({
type: 'error',
error: {
type: 'api_error',
message: 'Messages fixture script was exhausted',
},
}))
return
}
if (behavior.kind === 'complete') {
complete(response, body, behavior.text)
}
// A hold deliberately leaves the response pending until client abort.
})
})
await new Promise<void>((resolve, reject) => {
server.once('error', reject)
server.listen(0, '127.0.0.1', () => {
server.off('error', reject)
resolve()
})
})
const address = server.address()
if (address === null || typeof address === 'string') {
throw new Error('Messages fixture did not bind a TCP port')
}
return {
baseUrl: `http://127.0.0.1:${address.port}`,
requests,
requestStarted,
async close(): Promise<void> {
server.closeAllConnections()
await new Promise<void>((resolve, reject) => {
server.close((error) => {
if (error !== undefined) reject(error)
else resolve()
})
})
},
}
}

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import { execFile } from 'node:child_process'
import {
mkdirSync,
mkdtempSync,
readFileSync,
rmSync,
writeFileSync,
} from 'node:fs'
import { tmpdir } from 'node:os'
import { dirname, join, resolve } from 'node:path'
import { fileURLToPath } from 'node:url'
import { promisify } from 'node:util'
import { Context } from 'cordis'
import { afterEach, describe, expect, it, vi } from 'vitest'
import type { Agent } from '@deepseek-ai/dsh-agent'
import SubagentService from '@deepseek-ai/dsh-subagent'
import type { SubprocessHandle } from '@deepseek-ai/dsh-subprocess'
import LocalSubprocessService from '@deepseek-ai/dsh-subprocess-local'
import * as claudeCode from '../src/index.ts'
import {
startMessagesFixture,
type MessagesBehavior,
type MessagesFixture,
} from './messages-fixture.ts'
const execFileAsync = promisify(execFile)
const sdkRoot = dirname(fileURLToPath(
import.meta.resolve('@anthropic-ai/claude-agent-sdk'),
))
const sdkPackage = JSON.parse(readFileSync(
join(sdkRoot, 'package.json'),
'utf8',
)) as {
version: string
claudeCodeVersion: string
optionalDependencies: Record<string, string>
}
const platformPackage = `@anthropic-ai/claude-agent-sdk-${process.platform}-${process.arch}`
const platformRoot = resolve(sdkRoot, '..', platformPackage.split('/')[1]!)
const claudeBin = join(
platformRoot,
process.platform === 'win32' ? 'claude.exe' : 'claude',
)
const settingsModel = 'dsh-settings-inheritance-marker'
const fakeKey = 'dsh-fake-anthropic-key'
const roots: string[] = []
const fixtures: MessagesFixture[] = []
const contexts: Context[] = []
afterEach(async () => {
await Promise.all(contexts.splice(0).map(ctx => ctx.fiber.dispose()))
await Promise.all(fixtures.splice(0).map(fixture => fixture.close()))
for (const root of roots.splice(0)) {
rmSync(root, { recursive: true, force: true })
}
})
interface RealHarness {
readonly ctx: Context
readonly handles: SubprocessHandle[]
readonly parent: Agent
readonly workspace: string
readonly env: Record<string, string>
}
async function realHarness(script: readonly MessagesBehavior[]): Promise<{
readonly harness: RealHarness
readonly fixture: MessagesFixture
}> {
const root = mkdtempSync(join(tmpdir(), 'dsh-claude-code-real-'))
roots.push(root)
const workspace = join(root, 'workspace')
const claudeConfig = join(root, 'claude-config')
const xdgConfig = join(root, 'xdg')
mkdirSync(workspace)
mkdirSync(claudeConfig)
mkdirSync(xdgConfig)
writeFileSync(
join(claudeConfig, 'settings.json'),
`${JSON.stringify({ model: settingsModel }, null, 2)}\n`,
)
const fixture = await startMessagesFixture(script)
fixtures.push(fixture)
const env = {
ANTHROPIC_API_KEY: fakeKey,
ANTHROPIC_BASE_URL: fixture.baseUrl,
CLAUDE_CONFIG_DIR: claudeConfig,
HOME: root,
XDG_CONFIG_HOME: xdgConfig,
CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC: '1',
CLAUDE_CODE_DISABLE_OFFICIAL_MARKETPLACE_AUTOINSTALL: '1',
DISABLE_TELEMETRY: '1',
DISABLE_ERROR_REPORTING: '1',
HTTP_PROXY: '',
HTTPS_PROXY: '',
ALL_PROXY: '',
NO_PROXY: '127.0.0.1,localhost',
}
const ctx = new Context()
contexts.push(ctx)
await ctx.plugin(SubagentService)
await ctx.plugin(LocalSubprocessService)
const handles: SubprocessHandle[] = []
const spawn = ctx.subprocess.spawn.bind(ctx.subprocess)
vi.spyOn(ctx.subprocess, 'spawn').mockImplementation((spec) => {
const handle = spawn(spec)
handles.push(handle)
return handle
})
await ctx.plugin(claudeCode, { env, disposeGraceMs: 3_000 })
const parent = {
id: 'real-parent',
session: { header: { cwd: workspace } },
} as unknown as Agent
return {
harness: { ctx, handles, parent, workspace, env },
fixture,
}
}
async function expectQuiescent(
handles: readonly SubprocessHandle[],
): Promise<void> {
expect(handles.length).toBeGreaterThan(0)
for (const handle of handles) {
await expect(handle.waitForExit()).resolves.toBe(true)
const outcome = await handle.done
expect(outcome).toHaveProperty('exitCode')
expect(outcome).toHaveProperty('signal')
}
}
function startRequest(
harness: RealHarness,
prompt: string,
signal = new AbortController().signal,
) {
return harness.ctx.subagents.start('claude-code', {
prompt: [{ type: 'text', text: prompt }],
parent: harness.parent,
signal,
})
}
describe('real Claude Agent SDK 0.3.220 and Claude Code 2.1.220', {
timeout: 60_000,
}, () => {
it('inherits host settings and sends the exact task and fake key to local Messages', async () => {
const sentinel = 'REAL_CLAUDE_CODE_SENTINEL_2_1_220'
const task = 'Return the fixture sentinel exactly.'
const { harness, fixture } = await realHarness([
{ kind: 'complete', text: sentinel },
])
expect(sdkPackage.version).toBe('0.3.220')
expect(sdkPackage.claudeCodeVersion).toBe('2.1.220')
expect(sdkPackage.optionalDependencies[platformPackage]).toBe('0.3.220')
const version = await execFileAsync(claudeBin, ['--version'], {
env: { ...process.env, ...harness.env },
})
expect(version.stdout.trim()).toBe('2.1.220 (Claude Code)')
const run = await startRequest(harness, task)
await expect(run.result).resolves.toEqual({
output: [{ type: 'text', text: sentinel }],
stopReason: 'completed',
})
await run.dispose()
expect(fixture.requests).toHaveLength(1)
const recorded = fixture.requests[0]!
expect(recorded.method).toBe('POST')
expect(recorded.path).toMatch(/^\/v1\/messages(?:\\?|$)/)
expect(recorded.headers['x-api-key']).toBe(fakeKey)
expect(recorded.body.model).toBe(settingsModel)
expect(Array.isArray(recorded.body.messages)).toBe(true)
const messageTexts = (
recorded.body.messages as Array<{ content?: unknown }>
).flatMap((message): unknown[] =>
Array.isArray(message.content) ? message.content as unknown[] : [])
.filter((block): block is { type: string; text: string } =>
typeof block === 'object'
&& block !== null
&& 'type' in block
&& block.type === 'text'
&& 'text' in block
&& typeof block.text === 'string')
.map(block => block.text)
expect(messageTexts.filter(text => text.includes(task))).toEqual([task])
await expectQuiescent(harness.handles)
})
it('maps a real CLI process failure to error', async () => {
const { harness, fixture } = await realHarness([{ kind: 'hold' }])
const run = await startRequest(harness, 'Exercise the failure path.')
await fixture.requestStarted
expect(harness.handles).toHaveLength(1)
harness.handles[0]!.terminate()
await expect(run.result).resolves.toEqual({
output: [],
stopReason: 'error',
})
await run.dispose()
expect(fixture.requests).toHaveLength(1)
expect(fixture.requests[0]!.headers['x-api-key']).toBe(fakeKey)
await expectQuiescent(harness.handles)
})
it('settles cancellation and leaves the real SDK-spawned CLI tree quiescent', async () => {
const { harness, fixture } = await realHarness([{ kind: 'hold' }])
const controller = new AbortController()
const run = await startRequest(
harness,
'Wait for cancellation.',
controller.signal,
)
await fixture.requestStarted
controller.abort(new Error('real product cancellation'))
await expect(run.result).resolves.toEqual({
output: [],
stopReason: 'aborted',
})
await run.dispose()
await expectQuiescent(harness.handles)
})
})

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import { PassThrough } from 'node:stream'
import type {
Query,
SDKMessage,
SDKResultMessage,
SpawnOptions,
} from '@anthropic-ai/claude-agent-sdk'
import { Context } from 'cordis'
import Loader from '@cordisjs/plugin-loader'
import { afterEach, describe, expect, it, type Mock, vi } from 'vitest'
import type { Agent } from '@deepseek-ai/dsh-agent'
import type { InvariantInstaller } from '@deepseek-ai/dsh-invariants'
import type { ContentBlock } from '@deepseek-ai/dsh-llm'
import SubagentService from '@deepseek-ai/dsh-subagent'
import type {
SubprocessHandle,
SubprocessOutcome,
SubprocessSpawnSpec,
} from '@deepseek-ai/dsh-subprocess'
import LocalSubprocessService from '@deepseek-ai/dsh-subprocess-local'
import * as claudeCode from '../src/index.ts'
import * as invariant from '../src/invariant.ts'
import {
claudeSpawnSpec,
definedEnvironment,
ManagedClaudeCodeProcess,
} from '../src/process.ts'
import {
claudeQueryOptions,
consumeClaudeQuery,
disposeClaudeCodeChild,
startClaudeCodeRun,
successfulResult,
textTask,
type ClaudeCodeRunSpec,
} from '../src/run.ts'
const fakeParent = {
id: 'parent',
session: { header: { cwd: process.cwd() } },
} as unknown as Agent
function request(
prompt: ContentBlock[] = [{ type: 'text', text: 'do the task' }],
signal = new AbortController().signal,
) {
return { prompt, parent: fakeParent, signal }
}
async function nextTask(): Promise<void> {
await new Promise<void>((resolve) => { setImmediate(resolve) })
}
interface FakeChildOptions {
readonly pid?: number
readonly stdin?: PassThrough | undefined
readonly stdout?: PassThrough | undefined
readonly exitOnTerminate?: boolean
readonly waitForExitResult?: boolean
readonly waitForExitError?: Error
readonly doneError?: Error
}
interface FakeChild {
readonly handle: SubprocessHandle
readonly stdin: PassThrough
readonly stdout: PassThrough
readonly settle: (outcome?: SubprocessOutcome) => void
readonly fail: (error: Error) => void
readonly terminate: Mock<SubprocessHandle['terminate']>
readonly waitForExit: Mock<SubprocessHandle['waitForExit']>
}
function fakeChild(options: FakeChildOptions = {}): FakeChild {
const stdin = new PassThrough()
const stdout = new PassThrough()
let exited = false
let resolveDone!: (outcome: SubprocessOutcome) => void
let rejectDone!: (error: Error) => void
const done = new Promise<SubprocessOutcome>((resolve, reject) => {
resolveDone = resolve
rejectDone = reject
})
// Individual tests deliberately exercise rejected and still-pending handles.
void done.catch(() => {})
const settle = (
outcome: SubprocessOutcome = { exitCode: 0, signal: null },
): void => {
if (exited) return
exited = true
resolveDone(outcome)
}
const fail = (error: Error): void => {
if (exited) return
exited = true
rejectDone(error)
}
if (options.doneError !== undefined) fail(options.doneError)
const terminate = vi.fn<SubprocessHandle['terminate']>(() => {
if (options.exitOnTerminate !== false) settle()
})
const waitForExit = vi.fn<SubprocessHandle['waitForExit']>(async (signal?: AbortSignal): Promise<boolean> => {
if (options.waitForExitError !== undefined) {
throw options.waitForExitError
}
if (options.waitForExitResult !== undefined) {
return options.waitForExitResult
}
if (exited) return true
if (signal === undefined) {
await done.catch(() => {})
return true
}
return await new Promise<boolean>((resolve) => {
const onAbort = (): void => { resolve(false) }
signal.addEventListener('abort', onAbort, { once: true })
void done.then(
() => {
signal.removeEventListener('abort', onAbort)
resolve(true)
},
() => {
signal.removeEventListener('abort', onAbort)
resolve(true)
},
)
})
})
const handle: SubprocessHandle = {
pid: options.pid ?? 1234,
stdin: options.stdin === undefined ? stdin : options.stdin,
stdout: options.stdout === undefined ? stdout : options.stdout,
stderr: undefined,
collected: {},
done,
terminate,
waitForExit,
}
return {
handle,
stdin,
stdout,
settle,
fail,
terminate,
waitForExit,
}
}
function success(
result = 'answer',
isError = false,
): SDKResultMessage {
return {
type: 'result',
subtype: 'success',
is_error: isError,
result,
} as SDKResultMessage
}
type ErrorSubtype = Exclude<SDKResultMessage['subtype'], 'success'>
function failure(
subtype: ErrorSubtype,
errors: string[] = ['fixture failure'],
): SDKResultMessage {
return {
type: 'result',
subtype,
is_error: true,
errors,
} as SDKResultMessage
}
function queryFrom(
messages: readonly SDKMessage[],
after?: Error,
close = vi.fn(),
): Query {
async function* stream(): AsyncGenerator<SDKMessage, void> {
for (const message of messages) yield message
if (after !== undefined) throw after
}
return Object.assign(stream(), { close }) as unknown as Query
}
function waitingQuery(signal: AbortSignal, close = vi.fn()): Query {
async function* stream(): AsyncGenerator<SDKMessage, void> {
await new Promise<never>((_resolve, reject) => {
const fail = (): void => {
reject(signal.reason instanceof Error
? signal.reason
: new Error(String(signal.reason)))
}
if (signal.aborted) fail()
else signal.addEventListener('abort', fail, { once: true })
})
}
return Object.assign(stream(), { close }) as unknown as Query
}
function sdkSpawnOptions(
overrides: Partial<SpawnOptions> = {},
): SpawnOptions {
return {
command: '/sdk/claude',
args: ['--output-format', 'stream-json'],
cwd: '/workspace',
env: { PATH: '/bin', OMITTED: undefined },
signal: new AbortController().signal,
...overrides,
}
}
interface FakeRun {
readonly child: FakeChild
readonly query: Query
readonly close: ReturnType<typeof vi.fn>
readonly spawnSpecs: SubprocessSpawnSpec[]
readonly options: Array<Parameters<NonNullable<ClaudeCodeRunSpec['query']>>[0]['options']>
readonly spec: ClaudeCodeRunSpec
}
function fakeRun(
messages: readonly SDKMessage[] = [success()],
after?: Error,
child = fakeChild(),
): FakeRun {
const close = vi.fn()
const query = queryFrom(messages, after, close)
const spawnSpecs: SubprocessSpawnSpec[] = []
const options: FakeRun['options'] = []
const spec: ClaudeCodeRunSpec = {
cwd: '/workspace',
env: { ANTHROPIC_API_KEY: 'fake-key' },
disposeGraceMs: 5,
spawn: (spawnSpec) => {
spawnSpecs.push(spawnSpec)
return child.handle
},
query: (params) => {
options.push(params.options)
params.options.spawnClaudeCodeProcess!(sdkSpawnOptions())
return query
},
}
return { child, query, close, spawnSpecs, options, spec }
}
afterEach(() => {
vi.restoreAllMocks()
vi.unstubAllEnvs()
})
describe('task admission and package contracts', () => {
it('preserves text sequences and rejects empty, blank, and non-text tasks', () => {
expect(textTask([
{ type: 'text', text: 'one' },
{ type: 'text', text: 'two' },
])).toBe('onetwo')
expect(() => textTask([])).toThrow('only text blocks')
expect(() => textTask([{ type: 'reasoning', text: 'hidden' }]))
.toThrow('only text blocks')
expect(() => textTask([{ type: 'text', text: ' \n ' }]))
.toThrow('must not be empty')
})
it('registers one fixed descriptor, validates config, and unregisters on HMR', async () => {
const ctx = new Context()
await ctx.plugin(SubagentService)
await ctx.plugin(LocalSubprocessService)
const fiber = await ctx.plugin(claudeCode, {})
expect(ctx.subagents.getProvider('claude-code')).toMatchObject({
name: 'claude-code',
capabilities: {
outputSchema: false,
depthLimit: false,
toolFilter: false,
persona: false,
},
inheritsParentContext: false,
})
expect(ctx.subagents.list()).toEqual(['claude-code'])
await fiber.dispose()
expect(ctx.subagents.list()).toEqual([])
for (const disposeGraceMs of [0, -1, Number.NaN, Number.POSITIVE_INFINITY]) {
await expect(ctx.plugin(claudeCode, { disposeGraceMs }))
.rejects.toThrow('disposeGraceMs must be a positive finite number')
}
await ctx.fiber.dispose()
})
it('starts through the registered provider with its resolved config and diagnostics', async () => {
const ctx = new Context()
await ctx.plugin(SubagentService)
await ctx.plugin(LocalSubprocessService)
const child = fakeChild()
const spawn = vi.spyOn(ctx.subprocess, 'spawn')
.mockImplementation(() => child.handle)
const warn = vi.spyOn(ctx.logger, 'warn').mockImplementation(() => {})
await ctx.plugin(claudeCode, {
env: {
ANTHROPIC_API_KEY: 'provider-fake-key',
CLAUDE_CONFIG_DIR: '/private/tmp/dsh-claude-code-unit-config',
HOME: '/private/tmp/dsh-claude-code-unit-home',
},
disposeGraceMs: 29,
})
const run = await ctx.subagents.start('claude-code', request())
child.settle({ exitCode: 9, signal: null })
child.stdout.end()
await expect(run.result).resolves.toEqual({
output: [],
stopReason: 'error',
})
expect(warn).toHaveBeenCalledWith(expect.stringContaining(
'subagent-claude-code: child run failed (error):',
))
expect(spawn).toHaveBeenCalledWith(expect.objectContaining({
cwd: process.cwd(),
graceMs: 29,
}))
expect(spawn.mock.calls[0]?.[0].env).toMatchObject({
ANTHROPIC_API_KEY: 'provider-fake-key',
})
await run.dispose()
await ctx.fiber.dispose()
})
it('keeps the Loader namespace shape and package-owned empty invariant', async () => {
expect('default' in claudeCode).toBe(false)
expect(claudeCode.name).toBe('subagent-claude-code')
expect(claudeCode.inject).toEqual(['subagents', 'subprocess'])
const loader = Object.create(Loader.prototype) as Loader
expect(loader.unwrapExports(claudeCode)).toBe(claudeCode)
const dispose = vi.fn()
const register = vi.fn((
_packageName: string,
_installer: InvariantInstaller,
) => dispose)
const ctx = { invariants: { register } } as unknown as Context
await expect(invariant.apply(ctx)).resolves.toBe(dispose)
expect(register).toHaveBeenCalledWith(
'@deepseek-ai/dsh-subagent-claude-code',
expect.any(Function),
)
const install = register.mock.calls[0]![1]
await install(new Context(), (message) => { throw new Error(message) })
expect(invariant.name).toBe('subagent-claude-code-invariant')
expect(invariant.inject).toEqual(['invariants'])
})
})
describe('official spawn projection', () => {
it('forwards command, arguments, cwd, environment, and signal exactly', () => {
const signal = new AbortController().signal
const options = sdkSpawnOptions({
command: '/official/claude',
args: ['--one', 'two'],
cwd: '/parent/workspace',
env: { A: 'one', B: undefined, C: 'three' },
signal,
})
expect(definedEnvironment(options.env)).toEqual({ A: 'one', C: 'three' })
expect(claudeSpawnSpec(options, 321)).toEqual({
argv: ['/official/claude', '--one', 'two'],
cwd: '/parent/workspace',
stdio: { stdin: 'pipe', stdout: 'pipe', stderr: 'inherit' },
graceMs: 321,
signal,
env: { A: 'one', C: 'three' },
})
const missingCwd = sdkSpawnOptions()
delete missingCwd.cwd
expect(() => claudeSpawnSpec(
missingCwd,
321,
)).toThrow('SDK spawn request omitted its workspace')
expect(() => claudeSpawnSpec(
sdkSpawnOptions({ cwd: '' }),
321,
)).toThrow('SDK spawn request omitted its workspace')
})
it('projects streams, exit facts, listeners, and idempotent tree termination', async () => {
const child = fakeChild({ exitOnTerminate: false })
const process = new ManagedClaudeCodeProcess(child.handle)
expect(process.stdin).toBe(child.stdin)
expect(process.stdout).toBe(child.stdout)
expect(process.killed).toBe(false)
expect(process.exitCode).toBeNull()
expect(process.signalCode).toBeNull()
const exit = vi.fn()
const once = vi.fn()
const removed = vi.fn()
process.on('exit', exit)
process.once('exit', once)
process.on('exit', removed)
process.off('exit', removed)
expect(process.kill('SIGTERM')).toBe(true)
expect(process.killed).toBe(true)
expect(process.kill('SIGKILL')).toBe(false)
expect(child.terminate).toHaveBeenCalledOnce()
child.settle({ exitCode: null, signal: 'SIGTERM' })
await nextTask()
expect(exit).toHaveBeenCalledWith(null, 'SIGTERM')
expect(once).toHaveBeenCalledOnce()
expect(removed).not.toHaveBeenCalled()
expect(process.signalCode).toBe('SIGTERM')
expect(process.kill('SIGTERM')).toBe(false)
})
it('emits spawn errors and rejects handles without the required pipes', async () => {
const child = fakeChild()
const process = new ManagedClaudeCodeProcess(child.handle)
const errorListener = vi.fn()
const removed = vi.fn()
process.once('error', errorListener)
process.on('error', removed)
process.off('error', removed)
child.fail(new Error('spawn boom'))
await nextTask()
expect(errorListener).toHaveBeenCalledWith(expect.objectContaining({
message: 'spawn boom',
}))
expect(removed).not.toHaveBeenCalled()
const missingStdin = fakeChild({ stdin: undefined })
Object.defineProperty(missingStdin.handle, 'stdin', { value: undefined })
expect(() => new ManagedClaudeCodeProcess(missingStdin.handle))
.toThrow('requires piped stdin and stdout')
const missingStdout = fakeChild({ stdout: undefined })
Object.defineProperty(missingStdout.handle, 'stdout', { value: undefined })
expect(() => new ManagedClaudeCodeProcess(missingStdout.handle))
.toThrow('requires piped stdin and stdout')
})
it('exposes a settled direct-child exit code', async () => {
const child = fakeChild()
const process = new ManagedClaudeCodeProcess(child.handle)
child.settle({ exitCode: 7, signal: null })
await nextTask()
expect(process.exitCode).toBe(7)
expect(process.signalCode).toBeNull()
expect(process.kill('SIGTERM')).toBe(false)
})
})
describe('query options and result mapping', () => {
it('builds the fixed unattended options over the scrubbed environment', () => {
vi.stubEnv('HOST_VISIBLE', 'visible')
vi.stubEnv('HOST_SECRET_TOKEN', 'must-not-leak')
vi.stubEnv('DSH_INTERNAL', 'must-not-leak')
const child = fakeChild()
const spawn = vi.fn(() => child.handle)
const captured: SubprocessHandle[] = []
const spec: ClaudeCodeRunSpec = {
cwd: '/workspace',
env: {
HOST_VISIBLE: 'overridden',
ANTHROPIC_API_KEY: 'explicit-fake-key',
},
disposeGraceMs: 17,
spawn,
}
const controller = new AbortController()
const options = claudeQueryOptions(spec, controller, (value) => {
captured.push(value)
})
expect(options).toMatchObject({
abortController: controller,
cwd: '/workspace',
persistSession: false,
disallowedTools: ['AskUserQuestion'],
})
expect(options.env).toMatchObject({
HOST_VISIBLE: 'overridden',
ANTHROPIC_API_KEY: 'explicit-fake-key',
})
expect(options.env).not.toHaveProperty('HOST_SECRET_TOKEN')
expect(options.env).not.toHaveProperty('DSH_INTERNAL')
for (const omitted of [
'settingSources',
'canUseTool',
'onElicitation',
'onUserDialog',
'supportedDialogKinds',
]) {
expect(options).not.toHaveProperty(omitted)
}
const spawned = options.spawnClaudeCodeProcess!(sdkSpawnOptions())
expect(spawned).toBeInstanceOf(ManagedClaudeCodeProcess)
expect(captured).toEqual([child.handle])
expect(spawn).toHaveBeenCalledWith(expect.objectContaining({
argv: ['/sdk/claude', '--output-format', 'stream-json'],
cwd: '/workspace',
graceMs: 17,
}))
})
it('accepts only a non-error success with a non-blank final result', () => {
expect(successfulResult(success('exact final'))).toBe('exact final')
expect(() => successfulResult(success('answer', true)))
.toThrow('marked as an error')
expect(() => successfulResult(success(' \n ')))
.toThrow('contained no answer')
expect(() => successfulResult(failure(
'error_during_execution',
['first', 'second'],
))).toThrow('first; second')
expect(() => successfulResult(failure(
'error_max_turns',
[],
))).toThrow('error_max_turns')
})
it('consumes the complete stream and keeps the latest strict success', async () => {
const outputs: ContentBlock[][] = []
const query = queryFrom([
{ type: 'system', subtype: 'init' } as SDKMessage,
success('first'),
success('last'),
])
await expect(consumeClaudeQuery(query, (output) => {
outputs.push(output)
})).resolves.toEqual({
output: [{ type: 'text', text: 'last' }],
stopReason: 'completed',
})
expect(outputs).toEqual([
[{ type: 'text', text: 'first' }],
[{ type: 'text', text: 'last' }],
])
await expect(consumeClaudeQuery(
queryFrom([{ type: 'system', subtype: 'init' } as SDKMessage]),
() => {},
)).rejects.toThrow('ended without a result')
})
})
describe('run publication, cancellation, and settlement', () => {
it('publishes only after Query and managed child exist, then disposes once', async () => {
const fixture = fakeRun([success('exact answer')])
const run = await startClaudeCodeRun(
request([
{ type: 'text', text: 'first' },
{ type: 'text', text: 'second' },
]),
fixture.spec,
)
expect(fixture.options).toHaveLength(1)
expect(fixture.spawnSpecs).toHaveLength(1)
await expect(run.result).resolves.toEqual({
output: [{ type: 'text', text: 'exact answer' }],
stopReason: 'completed',
})
const first = run.dispose()
const second = run.dispose()
expect(second).toBe(first)
await first
expect(fixture.close).toHaveBeenCalledOnce()
expect(fixture.child.terminate).toHaveBeenCalledOnce()
})
it('flattens every SDK error result without inventing shared stop reasons', async () => {
const subtypes: ErrorSubtype[] = [
'error_during_execution',
'error_max_turns',
'error_max_budget_usd',
'error_max_structured_output_retries',
]
for (const subtype of subtypes) {
const fixture = fakeRun([failure(subtype)])
const onError = vi.fn()
const run = await startClaudeCodeRun(
request(),
{ ...fixture.spec, onError },
)
await expect(run.result).resolves.toEqual({
output: [],
stopReason: 'error',
})
expect(onError).toHaveBeenCalledWith(
expect.any(Error),
'error',
)
await run.dispose()
}
})
it('preserves candidate output when iteration fails after a result', async () => {
const fixture = fakeRun(
[success('partial final')],
new Error('iterator boom'),
)
const run = await startClaudeCodeRun(request(), fixture.spec)
await expect(run.result).resolves.toEqual({
output: [{ type: 'text', text: 'partial final' }],
stopReason: 'error',
})
await run.dispose()
})
it('maps invalid success and missing result to error', async () => {
for (const messages of [
[success('answer', true)],
[success('')],
[{ type: 'system', subtype: 'init' } as SDKMessage],
]) {
const fixture = fakeRun(messages)
const run = await startClaudeCodeRun(request(), fixture.spec)
await expect(run.result).resolves.toMatchObject({
stopReason: 'error',
})
await run.dispose()
}
})
it('gives local cancellation precedence and isolates overlapping controllers', async () => {
const firstChild = fakeChild()
const secondChild = fakeChild()
const children = [firstChild, secondChild]
const controllers: AbortController[] = []
let index = 0
const spec: ClaudeCodeRunSpec = {
cwd: '/workspace',
env: {},
disposeGraceMs: 5,
spawn: () => children[index++]!.handle,
query: ({ prompt, options }) => {
controllers.push(options.abortController!)
options.spawnClaudeCodeProcess!(sdkSpawnOptions())
return prompt === 'wait'
? waitingQuery(options.abortController!.signal)
: queryFrom([success('second answer')])
},
}
const firstAbort = new AbortController()
const first = await startClaudeCodeRun(
request([{ type: 'text', text: 'wait' }], firstAbort.signal),
spec,
)
const second = await startClaudeCodeRun(
request([{ type: 'text', text: 'finish' }]),
spec,
)
expect(controllers).toHaveLength(2)
expect(controllers[0]).not.toBe(controllers[1])
firstAbort.abort(new Error('parent cancelled'))
await expect(first.result).resolves.toEqual({
output: [],
stopReason: 'aborted',
})
await expect(second.result).resolves.toEqual({
output: [{ type: 'text', text: 'second answer' }],
stopReason: 'completed',
})
expect(controllers[1]!.signal.aborted).toBe(false)
await Promise.all([first.dispose(), second.dispose()])
})
it('rejects pre-abort and every incomplete startup transaction', async () => {
const preAborted = new AbortController()
preAborted.abort()
const unused = fakeRun()
await expect(startClaudeCodeRun(
request(undefined, preAborted.signal),
unused.spec,
)).rejects.toThrow('aborted before SDK startup')
expect(unused.options).toEqual([])
const noChildClose = vi.fn()
await expect(startClaudeCodeRun(request(), {
...unused.spec,
query: () => queryFrom([], undefined, noChildClose),
})).rejects.toThrow('did not publish a controllable')
expect(noChildClose).toHaveBeenCalledOnce()
const closeFailure = vi.fn(() => { throw new Error('close boom') })
const noChild = startClaudeCodeRun(request(), {
...unused.spec,
query: () => queryFrom([], undefined, closeFailure),
})
await expect(noChild).rejects.toBeInstanceOf(AggregateError)
const startupAbort = new AbortController()
const abortedChild = fakeChild()
const abortedClose = vi.fn()
const abortedDuringStartup = startClaudeCodeRun(
request(undefined, startupAbort.signal),
{
...unused.spec,
spawn: () => abortedChild.handle,
query: ({ options }) => {
options.spawnClaudeCodeProcess!(sdkSpawnOptions())
startupAbort.abort(new Error('startup cancelled'))
return queryFrom([], undefined, abortedClose)
},
},
)
await expect(abortedDuringStartup)
.rejects.toThrow('aborted before SDK startup')
expect(abortedClose).toHaveBeenCalledOnce()
expect(abortedChild.terminate).toHaveBeenCalledOnce()
await expect(startClaudeCodeRun(request(), {
...unused.spec,
query: () => {
throw new Error('query failed before resource creation')
},
})).rejects.toThrow('query failed before resource creation')
const spawned = fakeChild()
const spawnSpecs: SubprocessSpawnSpec[] = []
let factoryController: AbortController | undefined
const factoryFailure = startClaudeCodeRun(request(), {
...unused.spec,
spawn: (spawnSpec) => {
spawnSpecs.push(spawnSpec)
return spawned.handle
},
query: ({ options }) => {
factoryController = options.abortController
options.spawnClaudeCodeProcess!(sdkSpawnOptions())
throw new Error('query construction failed')
},
})
await expect(factoryFailure).rejects.toThrow('query construction failed')
expect(spawnSpecs).toHaveLength(1)
expect(factoryController?.signal.aborted).toBe(true)
expect(spawned.terminate).toHaveBeenCalledOnce()
const failedSpawn = fakeChild({
pid: -1,
doneError: new Error('spawn failed'),
})
const failed = fakeRun([], undefined, failedSpawn)
await expect(startClaudeCodeRun(request(), failed.spec))
.rejects.toBeInstanceOf(AggregateError)
expect(failed.close).toHaveBeenCalledOnce()
})
})
describe('bounded query and process disposal', () => {
it('closes the query, terminates the tree, and waits for direct-child outcome', async () => {
const child = fakeChild()
const close = vi.fn()
await disposeClaudeCodeChild({ close }, child.handle, 5)
expect(close).toHaveBeenCalledOnce()
expect(child.terminate).toHaveBeenCalledOnce()
expect(child.waitForExit).toHaveBeenCalledOnce()
await expect(child.handle.done).resolves.toEqual({
exitCode: 0,
signal: null,
})
})
it('accepts fractional and larger-than-Node grace windows', async () => {
for (const graceMs of [0.25, Number.MAX_VALUE]) {
const child = fakeChild()
await expect(disposeClaudeCodeChild(
{ close: vi.fn() },
child.handle,
graceMs,
)).resolves.toBeUndefined()
const signal = child.waitForExit.mock.calls[0]?.[0]
expect(signal?.aborted).toBe(false)
}
})
it('chains a doubled grace window beyond one Node timer segment', async () => {
vi.useFakeTimers()
try {
const child = fakeChild({ exitOnTerminate: false })
const disposal = disposeClaudeCodeChild(
{ close: vi.fn() },
child.handle,
1_073_741_823.75,
)
const rejected = expect(disposal)
.rejects.toThrow('did not exit within its dispose window')
await vi.advanceTimersByTimeAsync(2_147_483_647)
await vi.advanceTimersByTimeAsync(1)
await rejected
} finally {
vi.useRealTimers()
}
})
it('does not turn a missed tree-exit bound into an unbounded done wait', async () => {
const child = fakeChild({
exitOnTerminate: false,
waitForExitResult: false,
})
await expect(disposeClaudeCodeChild(
{ close: vi.fn() },
child.handle,
5,
)).rejects.toThrow('did not exit within its dispose window')
child.fail(new Error('late direct-child failure'))
await nextTask()
})
it('reports wait, close, and direct-child failures without skipping cleanup', async () => {
const waitFailure = fakeChild({
exitOnTerminate: false,
waitForExitError: new Error('wait boom'),
})
const closeFailure = vi.fn(() => { throw new Error('close boom') })
await expect(disposeClaudeCodeChild(
{ close: closeFailure },
waitFailure.handle,
5,
)).rejects.toBeInstanceOf(AggregateError)
expect(waitFailure.terminate).toHaveBeenCalledOnce()
const doneFailure = fakeChild({
pid: -1,
doneError: new Error('spawn boom'),
})
await expect(disposeClaudeCodeChild(
{ close: vi.fn() },
doneFailure.handle,
5,
)).rejects.toThrow('spawn boom')
const both = fakeChild({
pid: -1,
doneError: new Error('spawn boom'),
})
await expect(disposeClaudeCodeChild(
{ close: () => { throw new Error('close boom') } },
both.handle,
5,
)).rejects.toBeInstanceOf(AggregateError)
})
})