qwen-code/docs/developers
wenshao e74aa99191 fix(cli,sdk,docs): close 21 review threads — env regression + races + doc accuracy (#3803)
CRITICAL regression fix:
- Child env scrub flipped from allowlist back to denylist (just
  QWEN_SERVER_TOKEN). The earlier allowlist was overzealous: it
  dropped OPENAI_API_KEY / ANTHROPIC_API_KEY / GEMINI_API_KEY /
  QWEN_* / DASHSCOPE_API_KEY / custom modelProviders[].envKey, all of
  which the agent legitimately needs to authenticate to the LLM.
  Daemon-mode users with env-only auth would start the daemon, attach
  a session, then watch every prompt fail with auth errors. Threat-
  model rationale documented at the call site: prompt-injected shell
  tools can already read ~/.bashrc, ~/.aws/credentials, etc., so env
  passthrough isn't the security boundary; the user-as-trust-root is.
  QWEN_SERVER_TOKEN stays scrubbed to prevent agent → its own daemon
  escalation.

Other code fixes:
- doSpawn no longer tears down the session when create-time model
  switch fails. The session is still operational on the agent's
  default model; tearing it down left the caller with a 500 and no
  sessionId to retry against. The model_switch_failed SSE event is
  the visible signal; caller can retry via POST /session/:id/model
  once they have the sessionId.
- doSpawn now uses applyModelServiceId for the create-time model
  switch (was raw conn.unstable_setSessionModel + withTimeout). The
  helper races against transportClosedReject too, so a child crash
  during model switch fails fast instead of consuming the full init
  timeout.
- sendPrompt's abort handler now calls cancelPendingForSession
  before the ACP cancel notification (matching cancelSession). A
  client disconnecting mid-permission was leaving the agent stuck
  waiting on a vote that no SSE subscriber would ever cast.
- shutdown() and killSession() now publish a terminal `session_died`
  SSE event before closing the bus. Previously the channel.exited
  handler's "byId.get(...) !== entry" guard short-circuited (entry
  already removed), so SSE subscribers couldn't tell daemon shutdown
  from a transient network error.
- Express error middleware now special-cases `status: 413`
  (EntityTooLargeError from body-parser when a request exceeds the
  10 MB JSON limit) and returns a JSON 413 instead of a misleading
  500.
- /health is now registered BEFORE bearerAuth middleware, so
  liveness probes work without credentials when the daemon was
  started with --token. CORS deny + Host allowlist still apply.
- SSE writes serialize through a per-connection chain so the
  heartbeat interval can no longer interleave with the main event-
  write loop. Two concurrent res.write calls would otherwise bypass
  the backpressure guard and could interleave bytes between SSE
  frames on the wire.

SDK:
- abortTimeout / composeAbortSignals exported for direct unit
  testing. The existing test claimed to cover the polyfill paths via
  subscribeEvents, but subscribeEvents calls _fetch directly (not
  fetchWithTimeout), so composeAbortSignals never ran in the test.
  New tests exercise the helpers directly across native + polyfill
  runtimes.

Doc accuracy fixes:
- daemon-client-quickstart.md: createOrAttachSession({ cwd: ... })
  → ({ workspaceCwd: ... }) (SDK type), client.sendPrompt → prompt,
  client.cancelSession → cancel. The example wouldn't typecheck.
- qwen-serve.md: "binds one workspace" claim removed — a single
  daemon hosts sessions for any cwd the caller passes; the
  per-instance constraint is per-user / scale, not per-workspace.
  Auth verification example switched from /health to /capabilities
  (since /health is now exempt from bearer auth).
- qwen-serve-protocol.md: env var was QWEN_E2E_LLM, real var is
  SKIP_LLM_TESTS (inverted polarity). Streaming test count was 4,
  actually 3. Added Stage 1 limitation notes for "no DELETE
  /session" and "no permission timeout". Added client-side
  ring-buffer gap detection guidance for Last-Event-ID reconnect.

Test updates:
- httpAcpBridge.test.ts: rewrote two tests for the new
  doSpawn-on-model-switch-fail contract (publish event, keep
  session). Updated shutdown-closes-subscriptions test to expect
  the new terminal `session_died` frame.
- server.test.ts: switched bearer-auth rejection probes from
  /health to /capabilities (since /health is now exempt). Added a
  test that locks /health's exemption.
2026-05-11 09:27:22 +08:00
..
development feat(telemetry): add sensitive span attribute opt-in (#3893) 2026-05-08 00:36:08 +08:00
examples fix(cli,sdk,docs): close 21 review threads — env regression + races + doc accuracy (#3803) 2026-05-11 09:27:22 +08:00
tools feat(web-search): remove built-in web_search tool, replace with MCP-based approach (#3502) 2026-04-24 11:29:02 +08:00
_meta.ts docs(serve): close §08 Stage 1 doc gap — user guide + protocol reference + DaemonClient example (#3803) 2026-05-10 02:54:33 +08:00
architecture.md docs: enhance architecture documentation and add contribution guidelines 2025-12-11 18:31:24 +08:00
channel-plugins.md feat(channels): add dispatch modes and prompt lifecycle hooks 2026-03-28 06:19:02 +00:00
contributing.md docs: enhance architecture documentation and add contribution guidelines 2025-12-11 18:31:24 +08:00
qwen-serve-protocol.md fix(cli,sdk,docs): close 21 review threads — env regression + races + doc accuracy (#3803) 2026-05-11 09:27:22 +08:00
roadmap.md feat(cli): improve auth dialog UX with clearer three-option layout 2026-03-01 15:22:35 +08:00
sdk-java.md Fix typo in class name (#2189) 2026-04-18 11:59:36 +08:00
sdk-python.md feat(SDK) Add Python SDK implementation for #3010 (#3494) 2026-04-25 07:02:58 +08:00
sdk-typescript.md feat(cli/sdk): expose /context usage data in non-interactive mode and SDK API (#2916) 2026-04-14 03:28:32 +08:00