171 Commits

Author SHA1 Message Date
Totoro
cb90f5dca4
feat(channels): control IM notifications and add WeChat/QQ delivery (#6850)
* feat(channels): control IM notifications and add WeChat/QQ delivery

* fix(scheduler): skip notification preference locks without recipients

---------

Co-authored-by: Totoro-qaq <279883115+Totoro-qaq@users.noreply.github.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-14 11:14:48 +08:00
Totoro
c5bbaea02f
fix(channels): clean up interrupted Telegram initialization (#6810)
* fix(channels): clean up interrupted Telegram initialization

* fix(channels): preserve Telegram shutdown failures and finalize generators

---------

Co-authored-by: Totoro-qaq <279883115+Totoro-qaq@users.noreply.github.com>
2026-10-14 06:20:33 +08:00
Nan Gao
5841c8e9b7
fix(channels): make Feishu and DingTalk transports stoppable in-process (#6798)
* fix(channels): make Feishu and DingTalk transports stoppable in-process

FeishuChannel.stop() and DingTalkChannel.stop() could not end their SDK
threads. Both SDKs run on a thread-private event loop that only returned
on a fatal error: lark-oapi's ws.Client.start() parks forever in
run_until_complete(_select()) and has no public stop, and the channel
never kept the client handle; dingtalk-stream's start_forever() is a
while-True loop that also catches CancelledError, and the disconnect()
the channel called does not exist on the SDK. So every stop joined for
5s, raised ChannelStopTimeout, and ChannelService retained the instance
while the platform connection stayed alive on the old process. That
burns the full budget on shutdown and on POST /api/channels/{name}/restart,
and it blocks the per-provider leader lease: a demoted leader could not
release the transport before a peer took over.

Both channels now publish the SDK thread's loop and client under a lock;
stop() schedules a shutdown on that loop and then joins. Feishu disarms
lark's _auto_reconnect before closing the socket and stopping the loop,
because start() otherwise swallows the interrupted run_until_complete in
its reconnect branch and dials again. DingTalk drives its own copy of the
SDK connect loop that re-checks the running flag before every dial, runs
the blocking ticket request off the loop, cancels keepalive with the
socket, and logs the endpoint rather than the ticket-bearing payload. A
shared shutdown_private_loop cancels the SDK's leftover tasks with a
bounded drain and closes the loop; a stop requested before the client
exists never dials. ChannelStopTimeout now only fires for a thread that
genuinely wedges inside an SDK call. Telegram already stopped this way.

Tests: a fake lark ws.Client with the SDK's start() shape (including the
reconnect branch that swallows a bare loop stop), a real local websockets
server that observes the DingTalk close, the stop-before-client race for
both, and a blocking-io anchor that stop() ends a live private loop
without blocking the Gateway loop. All eight were red on main.

* docs(changelog): link the stoppable-transports entry to #6798

* fix(channels): release the socket on a stalled close and bound the DingTalk ticket request

Review follow-ups on #6798 (Totoro-qaq):

Feishu: the bounded _disconnect() wait cancelled websockets' close before
its own close-timeout abort ran, and lark clears _conn in its finally, so
a peer that never answers the close frame left the socket to garbage
collection. Worse, a stop landing while _connect() still held lark's
_lock snapshotted _conn as None. _shutdown_ws now settles the in-flight
dial by taking that lock under one shared close deadline, snapshots the
connection, runs _disconnect() under the same deadline, and aborts the
transport itself (abort_connection_transport in base.py) when the
handshake did not finish, yielding once so connection_lost runs before
loop.stop(). DingTalk's websocket.close() path gets the same abort.

DingTalk: the SDK's open_connection() calls requests.post with no
timeout, and running it in an executor let a stalled ticket endpoint
block interpreter exit (executor workers are joined at shutdown). The
channel now sends the same request through httpx on the stream loop
under a 30s deadline, so stop() cancels it and no worker thread lingers.

Tests drive the real SDK clients against loopback peers: a WebSocket
peer that completes the handshake and never ACKs the close (both
channels assert the connection's socket reports fileno() == -1 right
after stop(); red with the abort disabled), a real websockets server for
the clean path, and a loopback ticket server (ok / 500 / never responds)
with a no-lingering-non-daemon-thread check and a request-shape check.
2026-10-13 22:24:46 +08:00
Totoro
a1e3e75b17
fix(channels): retain Slack connect work through shutdown (#6808)
* fix(channels): retain Slack connect work through shutdown

* fix(channels): distinguish Slack cleanup failures from shutdown deadlines

---------

Co-authored-by: Totoro-qaq <279883115+Totoro-qaq@users.noreply.github.com>
2026-10-13 22:05:40 +08:00
Eilen Shin
e98179a9d3
feat(models): register managed models with provider presets (#6757)
* feat(models): register managed models with provider presets

* docs: add PR 6757 UI comparison screenshots

* test: fix model management CI checks

* docs: remove PR 6757 screenshots

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-13 08:14:23 +08:00
Nan Gao
db7340d2fa
fix(security): add DEER_FLOW_CREDENTIALS_KEY and wire the channel credentials cipher (#6611)
* fix(security): add DEER_FLOW_CREDENTIALS_KEY for at-rest credential encryption

There was no at-rest encryption key. ChannelCredentialCipher had no
production caller: the channel service, the scheduled-task notification
outbox and the channel-connections router all built
ChannelConnectionRepository without a cipher, so store_credentials refused
(RuntimeError) and get_credentials always returned None.

- New harness module deerflow.config.credentials_key: env-only
  DEER_FLOW_CREDENTIALS_KEY (comma-separated Fernet keys; first encrypts,
  all decrypt via MultiFernet), CredentialsCipher with encrypt_text /
  decrypt_text / rotate_text, a fernet:v2: prefix with legacy fernet:v1:
  values still readable, and get_credentials_cipher() as the process-wide
  entry point. Malformed keys are refused without echoing key material.
  Without the variable a single instance generates
  {base_dir}/.credentials_key. Never derived from AUTH_JWT_SECRET.
- New deerflow.config.secret_file.read_or_create_secret_file: O_EXCL
  create (0600) plus read-back with a bounded settle window, shared by
  .credentials_key, .jwt_secret (fixes two replicas cold-starting on a
  shared volume keeping different JWT secrets) and the managed-model key.
- ChannelCredentialCipher now builds on CredentialsCipher (same
  constructors); the Gateway loads the cipher off the event loop at
  startup when channel_connections is enabled and passes it to every
  ChannelConnectionRepository. Undecryptable values stay "missing + warn".
- Startup gate: a malformed key stops startup in any topology; a declared
  multi-instance deployment with channel_connections enabled and no key
  is refused. Plain multi-worker shares the generated file and is allowed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* feat(deploy): generate and inject DEER_FLOW_CREDENTIALS_KEY in Helm, compose and deploy.sh

- Helm: the app Secret generates a Fernet key (randBytes 32 translated to
  the urlsafe alphabet) and preserves it across upgrades via lookup like
  AUTH_JWT_SECRET; the gateway reads it through an optional secretKeyRef
  so a user-managed existingAppSecret without it still boots (the Gateway
  gate refuses only multi-instance deployments that store credentials).
  README, NOTES and values document backup, rotation and existingAppSecret.
- scripts/deploy.sh resolves the key shell -> .env -> persisted file ->
  generated, persisting it as $DEER_FLOW_HOME/.credentials_key (0600,
  noclobber/O_EXCL with read-back): the same file the Gateway generates in
  its runtime home, so either side's key is the one both keep.
- Both compose files pass DEER_FLOW_CREDENTIALS_KEY=${...:-} to the gateway.
- .env.example entry with a generation hint; README and CHANGELOG notes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* fix(security): make abandoned secret-file replacement single-winner

A rename is last-writer-wins, so replicas that restart together and all
find the same abandoned empty secret file could each replace it and keep
a different value. The process that exclusively creates
<name>.replacing now owns the replacement, re-checks the file is still
empty, and publishes by renaming the claim over it; peers wait for that
value, bounded so a crashed replacer cannot block startup forever.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* docs(changelog): link DEER_FLOW_CREDENTIALS_KEY entries to #6611

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* fix(security): name the setting that turns off a credentials-key consumer

The multi-instance refusal ended with "or disable
channel_connections.enabled=true"; it now says "or set
channel_connections.enabled=false".

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* fix(security): never expose a secret file before its value is written

O_EXCL published the name before its content, so a creator that stalled
mid-write left an empty file a peer replaced after the settle window; the
resumed creator then returned a value nobody persisted, or deleted the
peer's valid file when its own write failed. Creators now write and sync
a private temporary file and hard-link it to the name, which fails if
the name exists; a failed creator only removes its own temporary file.
Filesystems without hard links publish through the same single-winner
<name>.replacing claim that replaces abandoned empty files, so creation
and replacement are serialized there.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* fix(models): recover an empty managed-model key when no catalog exists

An interrupted first save could leave an empty key file; every later save
then passed empty bytes to Fernet and the endpoint returned 503 until the
file was removed by hand. An empty key with no catalog encrypted nothing,
so it now goes through the secret-file recovery path; next to an existing
catalog it is still refused.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* fix(docker): pass the dotenv DEER_FLOW_CREDENTIALS_KEY through make docker-start

scripts/docker.sh runs Compose from docker/ without --env-file, so the dev
gateway's DEER_FLOW_CREDENTIALS_KEY=${DEER_FLOW_CREDENTIALS_KEY:-} entry
interpolated to empty and overrode the key the checkout .env supplied via
env_file. Export it from the dotenv like AUTH_TRUSTED_PROXIES.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-10 20:51:09 +08:00
Jason Cat
f623e64e07
fix(acp): resolve a bare agent command through PATH before spawning (#6598)
* fix(acp): resolve a bare agent command through PATH before spawning

`invoke_acp_agent` handed `acp_agents.<name>.command` straight to the ACP
SDK, which spawns it with `asyncio.create_subprocess_exec`. That API applies
no `PATHEXT` lookup on Windows, so a bare npm launcher (`npx`, `mcode`)
raised `FileNotFoundError` although its `.cmd` shim was on `PATH`. The
documented `command: npx` and `command: mcode` shapes could not start, and
the tool reported "was not found on PATH" for an installed launcher.

Resolve the configured command with `shutil.which` before spawning — the way
the MCP Python SDK normalizes stdio server commands — and keep the configured
value when nothing matches, so the existing install guidance still fires.

Fixes #6597

* fix(acp): resolve the ACP agent command off the event loop

`_resolve_agent_command` calls `shutil.which`, which stats the filesystem.
Calling it inline in the async `_invoke` tripped the strict BlockBuster gate
(`BlockingError: Blocking call to os.access`) for every command that resolves,
and would block the Gateway event loop in production.

Offload the lookup with `asyncio.to_thread`, matching the neighbouring
`_get_work_dir`, `_build_acp_mcp_servers`, and `_format_invocation_error`
calls.

The blocking-io anchor configured `command="test-agent"`, a name that resolves
nowhere, so `shutil.which` short-circuited before `os.access` and the gate
never covered the new call. Point it at `sys.executable` so the lookup is
really exercised, and cover the unresolvable-guidance branch end-to-end with a
new test.

Refs #6597

* fix(acp): keep the configured command in ACP remediation text

Review follow-ups on the PATH resolution:

- Only bare names are resolved. A configured path is interpreted by the spawn
  against the per-thread ACP workspace, so resolving it against the Gateway's
  working directory could pick a different file or hand the spawn a path that
  then fails.
- `_format_invocation_error` receives `agent_config.command` again. A command
  can resolve on PATH and still fail to launch (a broken shebang, for example),
  and reporting the resolved path made "was not found on PATH" false and
  dropped the `codex-acp` hint.
- The blocking-io anchor uses a bare name backed by a shim on a controlled PATH
  instead of `sys.executable`, which the bare-name scoping no longer resolves.

Tests: the pass-through assertion in
`test_invoke_acp_agent_uses_fixed_acp_workspace` pins PATH, and new coverage
covers the bare-name scoping and the spawn-failure message.

Refs #6597

* docs(acp): correct the path-resolution rationale

A configured path is resolved by the spawn in its own process, so the
pass-through reason must not claim it is resolved against the ACP workspace:
that only holds on POSIX, while Windows resolves a relative executable against
the calling process's directory. State the platform-neutral reason instead.

Refs #6597

* fix(acp): resolve the launcher against the agent's own PATH

The ACP SDK merges acp_agents.<name>.env over its inherited environment at spawn time, so a configured PATH, not the Gateway's, decides which launcher the agent would find. Resolve a bare command against that effective PATH, and use the Gateway's only when the agent does not override it.

Return a successful lookup as an absolute path: a relative PATH entry makes shutil.which yield a result relative to the Gateway's cwd, while the spawn runs with cwd set to the ACP workspace, where that path resolves elsewhere or not at all.

Regressions: a real-subprocess test with same-named launchers in the Gateway and agent PATHs (asserting which one ran), and a real-subprocess test whose PATH holds a relative directory while the ACP workspace is elsewhere. Both are red on the pre-fix code.
2026-10-10 19:23:39 +08:00
yang rui
a333ac3189
feat(search): add Webz news search provider and setup integration (#5880)
* feat(search): add Webz news search provider and setup integration

* fix(webz): honor caller result limits and clarify page counts

* fix(frontend): render Webz search source links

* fix(frontend): skip malformed search source entries
2026-10-10 18:49:59 +08:00
Nan Gao
6c4c74a504
fix(channels): share chat-to-thread bindings through the database (#6558)
* fix(channels): share chat-to-thread bindings through the database

ChannelManager kept its IM chat-to-thread bindings
(channel_name:chat_id[:topic_id] -> thread_id) in a per-process JSON file,
channels/store.json, loaded once and rewritten whole on every change. With
several Gateway processes a binding created on one replica was invisible to
the others (the next message for the same chat opened a second thread) and
concurrent writers clobbered each other's file.

- New channel_thread_bindings table (migration 0036_channel_thread_bindings)
  and harness package deerflow.persistence.channel_thread_bindings: key PK
  (the legacy composite string), channel_name, chat_id, nullable topic_id,
  thread_id, user_id, epoch created_at/updated_at; index (channel_name,
  chat_id). Dialect upsert keeps created_at; prefix remove and batched
  ON CONFLICT DO NOTHING import.
- app.channels.store.ChannelStore is an async protocol: SqlChannelStore for
  sqlite/postgres, JsonChannelStore (file I/O via asyncio.to_thread) for
  database.backend: memory. resolve_channel_store picks at ChannelService
  construction; ChannelService.start() imports an existing store.json once
  into an empty table and renames it store.json.migrated (a concurrently
  importing peer neither duplicates nor clobbers; a populated table leaves
  the file alone).
- Callers updated: manager, connection_identity.lookup_thread_id, Feishu
  (send() awaits the mapping writer; the synchronous lark callback bridges
  its two store calls to the Gateway loop with a bounded wait), Discord
  (channels_dir).
- Head pins in the 0027_0028/0029/0032/0034/0035 migration tests point at
  the new head; docs (channels and migrations AGENTS.md, CONFIGURATION.md,
  README) and CHANGELOG updated.

* docs(changelog): link the channel thread bindings entry to #6558

* fix(channels): reject only the Gateway loop in the Feishu store bridge

lark-oapi 1.5.5 invokes the message callback synchronously from its async
frame handler, on the private event loop that FeishuChannel._run_ws starts
for the SDK thread. The bridge's guard treated any running loop as unsafe,
so every real inbound message skipped the stored-topic lookup and the
pending-mapping restore: a reply whose parent card was mapped but whose
root was not fell back to the unknown root, and could consume an
unrelated pending clarification.

Only a wait issued from the Gateway loop itself (the loop that executes
the submitted coroutine) is refused now; the SDK's own loop may block for
the bounded wait, as that thread blocked on the JSON rewrite before.
Tests drive _on_message from a worker thread running its own loop, the
production shape, for both the lookup and the write path, and pin the
Gateway-loop refusal.

* fix(channels): defer unresolved Feishu lookups and harden the store.json import

Review follow-ups on the chat-to-thread binding store (#6558):

- Import: a legacy entry whose key, channel_name, chat_id, topic_id,
  thread_id or user_id exceeds its column width is skipped and counted
  with the malformed ones instead of failing the whole batch on
  PostgreSQL (SQLite silently accepted the same row, so the backends
  diverged on one file). The corrupt-file warning now says what each
  caller does: the JSON store starts fresh, the import is skipped and
  the file kept.
- Feishu bridge: store calls run on the Gateway loop under a 3s
  asyncio.wait_for (the SDK loop also services ws keepalives; the old
  10s bound could stall it per message), and the lark-thread wait is
  that budget plus 1s. A deadline or store error is StoreLookupUnresolved,
  never a miss: _on_message no longer routes such a reply onto its
  unknown root (which created a second thread and later overwrote the
  parent alias). The message joins a per-chat FIFO drained on the
  Gateway loop with backoff for up to 30s, then is dropped with a
  warning. _on_message is split into parse / resolve / dispatch so the
  deferred path dispatches the same way; later messages for the chat
  queue behind the deferred one.

* fix(tests): expect follow_redirects in the Jina client kwargs after #5808

#5808 made JinaClient pass follow_redirects=True to httpx.AsyncClient and
updated test_jina_client.py, but test_jina_response_limit.py and
test_jina_retry_after.py still pin the exact client kwargs to proxy and
trust_env, so every backend-unit-tests shard that lands on them fails on
main (the backend unit-test workflow only runs on pull requests, which is
why the push to main did not surface it). Update the two expectations to
include the new keyword.

(cherry picked from commit d5aa23156ce19ce36d95df03953442f83ae6d050)

* Revert "fix(tests): expect follow_redirects in the Jina client kwargs after #5808"

This reverts commit 5bee00bfb09c65a30f77fb4df47a1f82c47ecef7.

* fix(channels): bound deferred Feishu routing by the inbound queue capacity

Review follow-up on #6558: a store outage let every subsequent message for
a chat join the deferred queue with no capacity check (the bus reservation
was only taken after routing succeeded), and each queued message started a
fresh 30s retry budget when it reached the head, so a burst could be
retained for N x 30s and grow without bound.

- Intake is reserved BEFORE routing for every store-backed message
  (bus.reserve_inbound is thread-safe and already used from SDK threads),
  so deferred and live messages share the one configured bound,
  channels.inbound_queue_maxsize; a message that cannot be admitted is
  dropped at once with a warning, never queued or routed as a miss.
- The reservation travels with the message into dispatch (committed by
  _prepare_inbound), is released on the batch path (the flush reserves at
  publish time), on drop after the budget, on a failed deferral, on
  dispatch failure and for every leftover when the drain task is cancelled
  by stop().
- The retry budget runs from the message's arrival: a queued message whose
  budget is spent when it reaches the head is dropped without a lookup.
- The bounded resolver returns the unresolved outcome instead of raising
  it through the tracked task, which logged an ERROR for an expected,
  handled store timeout.
- Upstream's new blocking-io test constructs the store by its old class
  name; it now uses JsonChannelStore.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-10 14:00:00 +08:00
spud
cd15687284
fix(mcp): reconcile committed Gateway config mutations (#6567)
* fix(mcp): reconcile committed Gateway config mutations

Install selective MCP binding fences inside the Gateway config commit boundary and finish teardown after releasing config locks. Reject frozen durable-task server changes before persistence.

Preserve drained cancellation semantics and cover delete/re-add, durable-only bindings, multi-server diffs, shared writers, and post-write reconciliation failure.

* test(mcp): pin committed handoff boundaries

Prove the fallback fence is installed before releasing the config lock, a committed writer cannot swallow an earlier shared reset, delete/re-add advances the applied baseline and cache generation, and retries after a post-write 500 have explicit conflict or missing semantics.

* fix(mcp): fence committed config after reload failure

Treat a post-write reload failure as a committed handoff failure so local MCP state is detached before releasing the config lock and teardown remains outside it.

* fix(mcp): always finish committed pool teardown

Run finish_mcp_reconciliation from a post-lock try/finally so response or logging failures cannot strand a retired full-reset pool.

* test(mcp): fence cold-start binding race

Pin the in-flight discovery path that keeps the committed fast path from admitting a late old-fingerprint binding.

* docs(mcp): document committed teardown guarantee

* fix(mcp): sanitize committed response errors

Keep post-write response conversion failures behind a fixed HTTP detail while preserving the retired-pool teardown guarantee.

* fix(mcp): avoid duplicate committed reconciliation error logs

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-10 11:03:26 +08:00
Storm
061a7dfc14
feat(channels): select the model per conversation via /model (#6534)
* feat(channels): select the model per conversation via /model

IM channels could list models with /models but had no way to choose one:
the model for a conversation came only from channel/session config or the
server default, so a user who needed a stronger or cheaper model for one
task had to reconfigure the whole channel or move to the web UI.

- /model <name> pins a model to the current conversation, validated
  against the caller-visible /api/models list (list membership doubles
  as the authorization check), persisted in thread metadata so it
  survives a Gateway restart and applies from the next message in
  place — unlike /agent use, which must start a new conversation.
- The pin is written to all three runtime carriers (run context,
  configurable, context) after the session layers merge, so it wins
  over channel/session configured models; like any explicitly
  requested model it also takes precedence over a Custom Agent's
  configured model.
- /model (no args) reports the effective model and its source through
  one resolver that mirrors the run merge order (default -> channel ->
  user, context carrier over configurable, both session-config
  carriers scanned); /model default clears the pin; /models names the
  pinned model in a footer.
- Pin lookups degrade instead of failing messages: the status query
  reports "Current model: unknown" on a lookup failure (matching the
  /models footer), and the reuse-thread preload leaves the in-process
  cache untouched so the next turn retries a transient threads.get.
- Reserve "model" in the slash-skill reserved-name contract (backend,
  contract fixture, frontend), register the Telegram handler, and
  document the command in /help, README, and README_zh.

* fix(channels): fence model pin cache and mirror runtime model resolution

Review follow-up for /model:

- Serialize cold pin loads with persist+cache publication under a
  per-manager lock, so a slow threads.get that captured pre-pin
  metadata can never overwrite a concurrently committed selection
  (commands are not run-serialized).
- _resolve_configured_model_name now replicates the run path's shallow
  session merges and applies the real runtime precedence —
  config.context (preserved by build_run_config, unbeatable by the
  setdefault-filled body context) > top-level context > configurable —
  instead of scanning per-layer carriers; a later layer replacing a
  nested carrier wholesale no longer leaks a stale value into the
  status reply.
- /api/models resolves the trusted bound owner for internal channel
  calls and filters the list with the owner's role, so /model
  selection gates on the same principal that run admission admits for
  that account.

Tests: pin-write-vs-in-flight-load race, status compared against the
real merged runtime config (parametrized across carriers),
nested-carrier replacement, and owner-role filtering with the real
RBAC provider; each verified red by reverting exactly its guard.

* fix(channels): share model resolvers with the run path and harden the pin lifecycle

The /model status reply re-implemented the session-layer merge and the
Gateway carrier precedence, and it ignored the custom-agent model
fallback — on a thread pinned to a custom agent whose config sets
``model:`` it reported "server default" while the run actually used
the agent's model. Review also found the pin lock spanned a network
call and a stale pin bricked its conversation behind the generic
error fallback.

- Extract ``_select_carried_model_name`` as the single carrier-precedence
  rule; the status reply reuses the run path's exact ``_merge_dicts``
  layer shapes, so a future layering change has one place to touch.
- Extract ``_resolve_message_assistant_id`` / ``_resolve_assistant_id``
  and share the assistant precedence chain between the run path and
  the status reply.
- Fall back to the resolved custom agent's configured ``model`` when no
  session layer carries one, mirroring the agent factory's
  ``_resolve_model_name(requested or agent_model_name)``; the reply now
  distinguishes "(from channel configuration)" and "(from agent
  configuration)".
- Run the cold ``threads.get`` in ``_load_thread_model`` outside
  ``_model_pin_lock``; only cache publication takes the lock, with a
  post-GET re-check so an in-flight /model write still wins over the
  older snapshot.
- Detect the run-admission allowlist rejection in ``_handle_message``
  and recover: clear the stale pin (durable write plus cache under the
  lock) and reply with the reset and the /model recovery instead of
  the generic internal-error fallback.
- Document /model and the ``channel_model_name`` pin semantics in
  backend/app/channels/AGENTS.md.

* fix(channels): fence stale-pin recovery and cover streaming admission failures

Review round 4 found the stale-pin recovery itself unsafe and
incomplete:

- Recovery cleared whatever pin was current when the delayed
  admission rejection arrived, so a rejection for an old pin could
  erase a replacement selection committed mid-flight (and tell the
  user the new model was unavailable). ``_stale_pin_recovery`` now
  takes the failed run's own selection (``expected_pin``, read from
  its run context) and clears only while that selection is still
  current under the lock; a replaced or already-reset selection gets
  a non-destructive reply instead.
- Feishu/Telegram/DingTalk streaming turns never reached the recovery
  hook because ``_handle_streaming_chat`` swallows start_run's 400
  into its terminal-error reply. The recovery now runs in the
  streaming terminal-error path too, delivered as the single final
  outbound with the same dedupe cleanup; blocking, streaming, and
  fire-and-forget run-creation paths all handle the rejection at the
  site that knows the submitted selection.

* docs(channels): fit the /model entry within the agent-guidance size budget

The base file sits one byte under the AGENTS.md hard limit, so
documenting /model requires net-zero growth: keep the command-inventory
addition and a compact pin-semantics sentence, and losslessly tighten
the surrounding prose (the file was already at the limit).

* fix(channels): apply the review suggestions on /model replies

Three non-blocking findings from the latest review:

- The /models pin footer decorated the failure string too, advertising a
  pin next to an error that lists nothing. The command now fetches the
  listing through ``_fetch_gateway_json`` and appends the footer only on
  a successful fetch.
- The /model status reply labeled every session-layer model "from
  channel configuration", misreporting user- and default-layer models.
  The label is now "session configuration" for every session layer.
- Stale-pin recovery replies read as if the turn went through, but the
  run was rejected before starting and the triggering message never
  reached the agent. All recovery variants now end with an explicit
  "Your message was not processed — please send it again."

* fix(channels): recover stale model pins on the follow-up drain path

The drain is the fourth run-creation path and the only one without
stale-pin recovery: a /model pin that left the allowlist while follow-ups
were buffered made every drained runs.create fail admission, requeueing
the batch into the same 400 on every cycle with no user-facing recovery —
contradicting the documented "stale pins self-clear" invariant.

- Compute expected_pin from the drain's run context (mirroring
  _handle_chat_on_thread, initialized None since _resolve_run_params is
  itself inside the guarded try) and run _stale_pin_recovery on drain
  failure before requeueing; the pin self-clears and the requeued batch
  succeeds on the next cycle.
- Pass the caller-authoritative thread_id into _stale_pin_recovery:
  every call site already holds it, so recovery never re-derives it from
  the message — a store-mapping rewrite between dispatch and recovery
  can never clear the wrong conversation's pin, and the lookup's
  failure mode (and its guard) disappears entirely.
- Return StalePinRecovery(text, resolved) so requeueing callers can
  tell a cleared pin from a repeat failure: the drain logs INFO when
  the next cycle is free of this rejection and WARNING when recovery
  could not remove it (persist failed, or the selection came from
  session configuration, which still carries it) — no silent infinite
  requeue loop. Drain logs carry structured facts only: the reply text
  ends with a "please resend" note that would double-process buffered
  messages retried automatically (GitHub, the only buffering channel,
  sends log-only anyway).
- Reword the config-carried recovery reply: with no pin held, the
  rejected selection came from session configuration — name that source
  and the fix instead of claiming a default takeover that would not
  happen.
- Correct the _load_thread_model lock docstring (writes deliberately
  hold _model_pin_lock across threads.update) and read the agent config
  for /model status off the event loop via asyncio.to_thread, with a
  Blockbuster-gated blocking_io regression test.
- Pin the under-lock re-check in _stale_pin_recovery with a concurrency
  test (a /model committed during the lock-wait window wins; recovery
  persists nothing), mutation-verified — the drain is the only caller
  running on a background task without the serialized-run lock, so it is
  the path most exposed to that window.

* Revert "fix(channels): recover stale model pins on the follow-up drain path"

This reverts commit 0b4652c689afb56791e5e670901c97a4bf44a156. The drain
recovery work moves to a dedicated PR stacked on this branch, keeping #6534
scoped to the /model feature itself.

* fix(channels): recover stale model pins on the follow-up drain path

The drain is the fourth run-creation path and the only one without
stale-pin recovery: a /model pin that left the allowlist while follow-ups
were buffered made every drained runs.create fail admission, requeueing
the batch into the same 400 on every cycle with no user-facing recovery —
contradicting the documented "stale pins self-clear" invariant.

- Compute expected_pin from the drain's run context (mirroring
  _handle_chat_on_thread, initialized None since _resolve_run_params is
  itself inside the guarded try) and run _stale_pin_recovery on drain
  failure before requeueing; the pin self-clears and the requeued batch
  succeeds on the next cycle.
- Pass the caller-authoritative thread_id into _stale_pin_recovery:
  every call site already holds it, so recovery never re-derives it from
  the message — a store-mapping rewrite between dispatch and recovery
  can never clear the wrong conversation's pin, and the lookup's
  failure mode (and its guard) disappears entirely.
- Return StalePinRecovery(text, resolved) so requeueing callers can
  tell a cleared pin from a repeat failure: the drain logs INFO when
  the next cycle is free of this rejection and WARNING when recovery
  could not remove it (persist failed, or the selection came from
  session configuration, which still carries it) — no silent infinite
  requeue loop. Drain logs carry structured facts only: the reply text
  ends with a "please resend" note that would double-process buffered
  messages retried automatically (GitHub, the only buffering channel,
  sends log-only anyway).
- Reword the config-carried recovery reply: with no pin held, the
  rejected selection came from session configuration — name that source
  and the fix instead of claiming a default takeover that would not
  happen.
- Correct the _load_thread_model lock docstring (writes deliberately
  hold _model_pin_lock across threads.update) and read the agent config
  for /model status off the event loop via asyncio.to_thread, with a
  Blockbuster-gated blocking_io regression test.
- Pin the under-lock re-check in _stale_pin_recovery with a concurrency
  test (a /model committed during the lock-wait window wins; recovery
  persists nothing), mutation-verified — the drain is the only caller
  running on a background task without the serialized-run lock, so it is
  the path most exposed to that window.

(cherry picked from commit 0b4652c689afb56791e5e670901c97a4bf44a156)

* fix(channels): apply the third review round on /model command replies

- Delete the dead kind == "models" branch in _fetch_gateway: /models has
  rendered the listing inline since the pin-footer fix, so the helper's
  copy was unreachable and had already diverged (unguarded m["name"], no
  pin footer). The internal-auth-header test now drives the surviving
  /memory kind.
- Guard the inline /models listing comprehension like the
  _handle_model_command sibling (isinstance(m, Mapping) and
  isinstance(m.get("name"), str)), so a malformed payload entry can no
  longer turn the command into the generic internal-error reply;
  regression: test_models_command_skips_malformed_entries.
- Drop the unused user parameter from _resolve_bound_owner_for_model_list:
  the resolved owner comes solely from the trusted header, and the
  parameter implied the caller's own principal shaped the filter.

* fix(channels): apply the fourth review round on the /model lifecycle

- Preserve fresh model pins across cache eviction: a cold threads.get
  racing a successful /model write could still publish its stale
  snapshot after clear-on-pressure evicted the fresh entry — the
  in-cache re-check cannot see an eviction. The model-pin cache now
  carries a write generation; a load whose generation moved during the
  GET refetches once instead of publishing over the committed
  selection. Regression:
  test_fresh_model_pin_survives_cache_eviction_during_cold_load
  (blocked GET, write, eviction, then the refetch wins),
  mutation-verified.
- Resolve context-carried agents before reporting their model: /model
  status now mirrors the run path's effective-agent rule — explicit
  message/thread choice overwrites every carrier, then the merged
  carriers' agent_name (new _select_carried_agent_name, sharing the
  model-name precedence via _select_carried_value), then the
  session-layer assistant_id that only setdefaults into context. A
  session with context.agent_name=coder now reports coder-model instead
  of server default, and assistant_id=writer alongside
  context.agent_name=coder reports coder-model instead of writer-model.
  Regressions: context-carried, context-beats-assistant_id, and
  thread-pin-beats-context status tests.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-10 09:45:17 +08:00
Storm
b9a75b869d
fix(sandbox): attest lark broker mode per Pod and quarantine uncertain shell outcomes (#6436)
* fix(sandbox): attest lark broker mode per Pod and quarantine uncertain shell outcomes

Why this change:
Two fail-open paths in the AIO sandbox lifecycle. First, the lark broker
capability probe collapsed "provisioner unreachable" into "broker not
configured": one 1.5s timeout cached a negative for 300s, so new sandboxes
were created without the broker sidecar while the per-user credential
directories were still bind-mounted into the container, and existing Pods
kept being reused without their actual mode ever being read. Second, an
implicit-shell command that timed out or returned an unknown status only
marked the current client object; warm-pool reclaim and rediscovery built a
fresh client that re-entered a container whose shell state could not be
proven clean, and nothing about that ambiguity survived a Gateway restart.

What changed:
- The capability cache stores confirmed observations only, keyed per
  provisioner endpoint/auth identity; an unknown answer (timeout, malformed
  payload) raises instead of selecting credential placement, while a
  confirmed broker requirement is retained through outages. One in-flight
  probe per identity shares success and failure, and a Pod-attested mode
  contradicting the cache forces one shared refresh.
- Execution uses the mode attested for the actual sandbox:
  SandboxInfo.lark_cli_broker flows from the provisioner's atomic Pod
  observation into the client, so a probe outage delays drift detection but
  never denies reuse of an attested runtime, and never trusts an unattested
  one.
- The provisioner reports each Pod's actual broker mode, generation (Pod
  UID) and shell capacity from one read, rejects lark requests conflicting
  with its configuration (409/503 carrying a capability-refresh marker the
  Gateway uses to drop the stale cache entry), rejects conflicting or
  Terminating Pods on coordination creates while reporting Terminating as
  data to status/get/list, and answers Pod presence independently of
  Service readiness.
- A persistent quarantine (DEER_FLOW_HOME/sandbox-quarantine, keyed by
  scope/sandbox/generation) fences containers after uncertain implicit
  shell outcomes across client rebuilds and restarts; in-process reuse,
  warm reclaim, discovery, create responses and orphan reconciliation all
  pass one policy gate, and replacement runs under the existing ownership
  and teardown fences. A fenced sandbox still tracked after a failed
  release-recycle is destroyed inline on the next acquire.
- Quarantine records retire only after confirmed absence, retrying partial
  cleanup for the quarantined generation and releasing remembered ports
  under the same fences; local stop failures now propagate instead of being
  logged away, and remote destroy errors surface to callers.

Problem solved:
A provisioner blip could silently strip broker isolation from new lark
sandboxes for minutes at a time, and ambiguous shell outcomes let corrupted
default shells persist across warm reuse, rediscovery and restarts. Docs
updated: README, aio_sandbox and skills AGENTS.md.

* docs(changelog): record sandbox attestation and quarantine fix (#6436)

* fix(sandbox): preserve active leases and fail closed on unattested broker modes

Concurrent uploads could recycle a healthy AIO runtime while another holder
was creating or cleaning up a command session. Older provisioner responses
could also trigger destructive replacement before failing admission.

- Distinguish pending session creation from ambiguous outcomes and reserve
  idle teardown until execution and upload holders finish scope cleanup.
- Reject stale fork lookups and reconcile cancelled acquires without
  releasing a sandbox still borrowed by another holder.
- Default Lark broker mode to unverified and preserve unattested Pods until
  the provisioner is upgraded.
- Recognize Docker 29 absence diagnostics while matching resource names exactly.
- Preserve Gateway upload errors and cover admission and lifecycle regressions.

* fix(sandbox): scope the unverified-broker refuse path to attested providers

The fail-closed raise in _lark_cli_env_from_runtime treated every Sandbox
without a lark_cli_broker attribute as unverified, but only AioSandbox
carries the attestation — E2B, OpenSandbox, Tenki, and Boxlite have no
broker sidecar, no credential mounts, and no provisioner to upgrade, so
every lark-cli command on those providers failed with an unactionable
error.

Declare the tri-state on the Sandbox base class (defaulting to False,
the only mode brokerless providers have) so the None fail-closed path
stays scoped to AioSandbox's deliberate unverified default.

- Add lark_cli_broker: bool | None = False to the Sandbox ABC, mirroring
  the persistent_shell_sessions tri-state pattern
- Add a regression test pinning the non-broker overlay for a provider
  without the attribute

* fix(sandbox): close review gaps in broker attestation and teardown lifecycle

Address the latest #6436 review round:

- The provisioner's post-build broker-mode 409 now carries the
  capability-refresh marker, so an incompatible-mode conflict surfaced by
  idempotent re-create, attestation drift or post-create verification drops
  the Gateway's cached capability observation instead of repeating the same
  409 for the full negative-cache TTL.
- AioSandboxProvider.destroy() returns the _destroy_tracked outcome: False
  when teardown is deferred because an execution/upload holder or a peer
  teardown is still active, so callers can no longer mistake a deferred
  destroy for a completed one.
- A live replacement under the same logical ID proves the fenced old
  generations are absent; retire_replaced_generations prunes only those
  stale records so they cannot strand future creates, while the live
  generation's fence and unversioned crash fences are never touched.
- SandboxInfo.from_dict keeps a missing lark_cli_broker attestation
  unverified (None) instead of silently rehydrating as attested non-broker.
- The restricted-network inspect path shares the strict
  _is_no_such_network_error parser, closing the substring loophole for
  context-name collisions and wrong-target errors.

* docs(sandbox): condense lease notes to keep the AGENTS.md chain under the size gate

The three lease notes added in 26c307f3 pushed the effective guidance chain
to 98,312 bytes — 8 over the 98,304 hard limit enforced by agent-guidance
(AG002). Fold them into two lines carrying the same rules.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-10 07:56:09 +08:00
Hyeonsang Cho
9c159ef880
fix(auth): key the compose login lockout by client, not by nginx (#6519)
* fix(auth): key the compose login lockout by client, not by nginx

Failed logins are counted per client IP, and the Gateway honors X-Real-IP
only from a peer listed in AUTH_TRUSTED_PROXIES. The compose files never
set it, and every browser request reaches the Gateway from the nginx
container, so all logins shared nginx's address: five wrong passwords
from anyone locked every user out for five minutes.

AUTH_TRUSTED_PROXIES now also accepts hostnames, resolved off the event
loop and cached for 10 seconds (failed lookups included, and only when
X-Real-IP is present), and both compose files default it to the bundled
nginx service, whose address Docker assigns. nginx overwrites X-Real-IP
with $remote_addr on every Gateway route; a test pins that for the three
maintained configs.

* docs(changelog): reference #6519

* fix(auth): share one trusted-proxy lookup across concurrent cache misses

A burst of setup-status / login requests on an expired hostname entry
started one getaddrinfo per request while DNS was slow, occupying the
default executor that password verification also uses. The cache check
and an in-flight task registration now happen without a yield between
them; later callers join that task through asyncio.shield, so a cancelled
request cannot cancel the lookup the others joined, and the task caches
its own result.

The compose default keeps `:-` on purpose: every browser request arrives
through nginx, so an empty AUTH_TRUSTED_PROXIES would only bring back the
shared lockout. The compose comment and .env.example say so, and the
rendered-compose test now covers the explicitly empty value.

* fix(docker): keep a .env AUTH_TRUSTED_PROXIES under make docker-start

docker.sh start runs Compose from docker/ without --env-file, so the dev
compose file's ${AUTH_TRUSTED_PROXIES:-nginx} interpolated from the shell
only, and the resolved environment entry outranked the operator's value
loaded through env_file. Export it from .env alongside the proxy variables
(a shell export still wins), and strip a CRLF before the quotes.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-09 17:22:45 +08:00
Nan Gao
b99ac916b6
fix(auth): count login lockouts in the database across Gateway replicas (#6501)
* fix(auth): count login lockouts in the database across Gateway replicas

POST /api/v1/auth/login/local throttled failed logins per client IP in a
module-level dict, so with N Gateway replicas behind one load balancer an
attacker got N x auth.local.max_login_attempts guesses and a lockout on
one replica was invisible to the others.

Move the counter behind a LoginThrottleStore (deerflow.persistence.
login_throttle): MemoryLoginThrottleStore keeps the historical per-process
semantics and 10k tracked-IP bound; SqlLoginThrottleStore shares one
login_throttle row per IP through the application database, incrementing
and starting the lock in a single dialect-native upsert, applying check
decisions with compare-and-set predicates in a separate write
transaction, and sweeping served locks plus 24h-idle counters in bounded
batches. Both stores pin the existing contract: the lock starts when the
count reaches max_login_attempts, the committed duration is honored when
the policy shrinks mid-lock, a served sentence is never resurrected,
tightening keeps the count, success resets the IP, and the 429 status and
message are unchanged.

New startup-only selector auth.local.throttle_storage (auto | memory | db,
default auto = the database whenever database.backend is sqlite or
postgres). The Gateway installs the store once at startup after the
persistence engine; deps._validate_login_throttle_storage warns when a
multi-process deployment keeps memory. Migration 0034_login_throttle
creates the table; config_version 55 -> 56 in config.example.yaml and the
Helm chart. Docs: README, CONFIGURATION.md, AUTH_DESIGN.md, config and
migrations AGENTS.md, CHANGELOG.

* docs(changelog): link the login throttle entry to #6501

* fix(auth): re-check expiry on the row the login-throttle sweep deletes

The bounded cleanup in SqlLoginThrottleStore.record_failure deleted
`WHERE ip IN (SELECT ip ... WHERE <served or stale> LIMIT 200)`. On
PostgreSQL READ COMMITTED the expiry predicate applied only inside the
snapshot-bound subquery: when the DELETE had to wait on a row lock held
by a concurrent check() that was extending the same lock under a raised
lockout_seconds, PostgreSQL re-evaluated only the outer WHERE on the
updated tuple, IP membership still held for the old candidate, and the
now-active lock was deleted; the next attempt from that IP got a clean
record and reached password verification (review of #6501, P2).

Repeat the served/stale predicate on the DELETE target as well
(SqlLoginThrottleStore.sweep_statement), keeping the bounded candidate
subquery, so the re-evaluation sees the updated row's expiry. The other
writes already carry their full compare-and-set predicate on the target
row: _discard and the check() UPDATE both use _matches (ip, fail_count,
locked_at, lock_duration_seconds), so a tuple changed while they waited
no longer matches and the stale decision is skipped. _discard keeps the
equality compare-and-set rather than adding an expiry condition: its
early-release branch deletes a lock whose committed sentence has not
elapsed under the lowered live policy, which an expiry predicate would
wrongly block, and the equality predicate already pins every input of
the decision. reset stays unconditional by design.

Tests: a dialect-compile test asserts the DELETE's own WHERE carries the
expiry predicate for postgresql and sqlite (red on the previous HEAD), and
a PostgreSQL-only test (skipped without TEST_POSTGRES_URI) reproduces the
update-versus-sweep interleaving with two engines, waiting on
pg_stat_activity for the sweep to block before the extender commits.
Docs: sql.py concurrency contract and the migrations guide's 0034 bullet.

* fix(auth): keep an active login lock's clock and fail closed on explicit db

Address the "changes requested" review on #6501.

Lock clock (confirmed defect): record_failure re-stamped locked_at = now
for every failure on an already-locked row, so a sustained attacker's
sentence slid forward with each attempt. Both stores now apply one rule
in one atomic decision: new_count = fail_count + 1; below max_attempts the
IP counts with no lock (a failure after the operator raised the threshold
clears an existing lock); at or over it, a failure during an *active* lock
keeps locked_at and the committed lock_duration unchanged, while a
never-locked or served row starts anew with now / lockout_seconds (so the
failure that reaches a raised threshold starts a fresh lock rather than
keeping a stale locked_at). The SQL upsert expresses it as nested case()
on the row's own values; the memory store mirrors it. The sweeps in both
stores now leave the row being recorded to that decision instead of
deleting a served lock or stale counter first, which split the contract
(SQL would have produced a fresh (1, NULL, NULL) row). base.py states the
rule.

Explicit db downgrade: resolve_login_throttle_store raises SystemExit —
the failure type of the other startup validations in app.gateway.deps —
when throttle_storage='db' resolves to the shared table but no engine is
initialised, so langgraph_runtime refuses to start instead of silently
running every replica on per-process counters; the lazy bare-app path
applies the same rule and installs nothing. 'auto' keeps warning and
falling back. 'db' on a memory database still degrades with a warning
(there is no shared table to insist on).

Non-blocking items: _key() logs a warning when a client key is truncated
to 255 characters (never the key itself); the sql.py docstring covers
wall-clock locked_at across replicas (run NTP; skew shifts evaluation by
that much) and why STALE_COUNTER_SECONDS=24h / SWEEP_BATCH_SIZE=200 were
chosen; a store-level blocking-I/O anchor covers the SQL reset path; the
_validate_login_throttle_storage warning was verified to render
'throttle_storage=memory' for the StrEnum (the gate test now passes the
enum member and asserts that text). reset stays unconditional: a peer
failure that commits after a reset leaves fail_count=1, one genuine
failure after the cleared history, which a new test documents.

Docs: CHANGELOG entry, config.example.yaml, CONFIGURATION.md,
AUTH_DESIGN.md and the throttle_storage field description.

* fix(auth): re-evaluate a login-throttle check whose compare-and-set missed

SqlLoginThrottleStore.check applied its decision (commit the live
duration, or clear a served / released lock) with a compare-and-set
predicate on the snapshot it had read, but ignored the affected-row
count. When a peer changed the row between the read and the write — an
admitted wrong password incrementing fail_count on another replica, or a
successful login clearing the row — the UPDATE or DELETE matched zero
rows, yet check reported the decision as applied: it could return an
extended 60s sentence while the row kept its 1s duration, so the next
check cleared the lock and let password verification through; a live
duration decrease could be dropped the same way; and a row a peer had
just cleared was still reported as locked (#6501 review, P2).

Every compare-and-set write in check now checks result.rowcount. On a
miss the row is re-read and re-evaluated from the top, up to
CHECK_CAS_ATTEMPTS (3) times, applying a fresh compare-and-set decision
on the new snapshot and never clobbering a reset or replacement: a row
that is gone is reported as allowed, a fresh peer lock is reported as
locked, and an incremented count gets the extension or decrease
committed on it. Exhausting the bound fails closed: nothing is written
and the answer is the last snapshot's lock under the live policy, logged
at debug. The read stays in its own short transaction and each write in
a separate one.

The evaluation is now one shared pure function, evaluate_check in
base.py (CheckDecision), used by both stores so the contract cannot
diverge. The memory store keeps a single pass: its compare-and-set
cannot miss because there is no await between the read and the write on
the loop thread, which its docstring now states.

Tests (red first on df26c2acf) use a session proxy that runs the peer
mutation on a second engine right after the snapshot read ends its
transaction: the reviewer's raised-duration interleaving (59.5s reported
and committed, the increment survives, a later check still locked), the
mirrored decrease, early release on the fresh row, a reset landing
between read and write (0.0, no row recreated), and the bound-exhausted
fail-closed case.

* docs(changelog): resolve merge markers left in the Unreleased section

* test(migrations): pin 0035_login_throttle as the head in the 0034 watermark test

Upstream #6477 added test_migration_0034_run_event_seq_watermark.py asserting
0034 is the single head; this branch chains 0035_login_throttle after it, so
the test now pins the current head and walks the chain like its siblings.

* perf(auth): one session per login-throttle check, one transaction per failure

Two non-blocking performance suggestions from the #6501 review.

Single session per check. The router probed the row with store.get()
and then called store.check(), which re-read it: a recorded IP cost two
connection-pool checkouts and two SELECTs per request on the
unauthenticated login path, letting a lockout flood compete with
legitimate traffic for Postgres connections. LoginThrottleStore.check
now takes the policy as an async callable (LoginThrottlePolicy) and
resolves it lazily inside the store: the probe, the policy resolution
and the compare-and-set loop share one session, a clean IP returns 0.0
without ever calling the policy (the config.yaml read is still skipped
for the common case), and a recorded IP resolves it exactly once, also
across compare-and-set retries. The decision is made on a snapshot read
after the resolution: the policy read is a yield point, and a decision
that needs no write has no compare-and-set to catch a row a peer changed
meanwhile — so one session, but still a read after the yield. The
memory store takes the same signature and re-reads its record after the
await for the same reason. The router passes its asyncio.to_thread
policy read as the callable and drops the separate probe; get stays on
the protocol for tests and anchors. No short-TTL verdict cache: it would
mask a successful login's reset for the TTL window, and the single
session already halves the hot path.

Sweep in the upsert's transaction, plus an index. record_failure ran the
housekeeping DELETE in its own transaction and the upsert in a second
one, two commits (two WAL flushes on PostgreSQL) per failed login; the
sweep now rides in the upsert's transaction with one commit, the keep
exclusion already protecting the row being recorded. The new
ix_login_throttle_updated_at (ORM __table_args__ and the unreleased
0035 migration, created after the table and dropped before it, each
guarded separately so a table left by an interrupted attempt still gets
its index) serves the sweep's stale-counter predicate; the served-lock
predicate scans a table the sweep itself keeps small.

Tests (red first on a137fbc47): a clean IP never resolves the policy and
a recorded IP resolves it exactly once (both stores), the SQL store opens
exactly one session per check and commits once per record_failure
(counting wrappers), the migration test asserts the index after upgrade,
after completing a partial upgrade that lacked it, and gone after
downgrade while compare_metadata stays empty; the router-level
"mutated during policy resolution" tests now inject their mutation
through the policy callable.

* docs(changelog): note config_version 57 in the login throttle entry
2026-10-08 22:35:19 +08:00
NanPan
62c54238d2
fix(channels): fence restart during service shutdown (#6503)
* fix(channels): fence restart during service shutdown

* test(channels): fence restart during service stop

* test(channels): exercise restart after shutdown channel snapshot

* docs(channels): document service shutdown publication fence

* fix(channels): keep agent guidance within CI hard budget

* fix(channels): fence publication after shutdown completes

* test(channels): cover resume after completed service shutdown

* test(channels): mark direct-start fixtures as active services

* test(channels): mark direct-start fixtures as active services

* style(channels): format shutdown regression test

* fix(channels): drain channel startup completing after service stop

* test(channels): ensure late channel startup is drained after stop

* style(tests): format channel shutdown regression

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-08 22:29:49 +08:00
Nan Gao
4bab280250
fix(skills): share skill cache invalidation across Gateway replicas (#6495)
* fix(skills): share skill cache invalidation across Gateway replicas

SkillStorage.load_skills() rescans disk and re-reads extensions_config.json
on every call, but the prompt layer in deerflow/agents/lead_agent/prompt.py
caches the enabled-skills list, the per-(app_config, user_id) entries and
the rendered <skill_system> section per process, and every skill mutation
in routers/skills.py only refreshed the process that handled it. With
several uvicorn workers or several Pods sharing one home volume, a skill
installed, edited, deleted, rolled back or toggled through replica A kept
being offered as the old skill set by replica B until B restarted, and
POST /api/skills/reload had to be sent to every Pod separately.

Reuse the MCP cache-reset mechanism. A new generic helper,
deerflow.config.shared_reset_marker, owns a hidden JSON marker beside the
resolved extensions config (.<config name>.<suffix>.json): publish()
replaces it atomically with a random generation under
extensions_config_write_lock + extensions_config_file_lock, chaining
previous_generation and an optional user_id; SharedResetMarkerTracker
polls it at most once per second (monotonic clock, never blocking behind a
concurrent poller), adopts the current state silently on its first poll,
and classifies a change as user-scoped only when exactly one publication
carrying that user happened since the last poll. deerflow/mcp/cache.py now
builds its .<config>.mcp-cache-reset.json marker through the same helper
with no behavior change.

prompt.py publishes .<config>.skills-cache-reset.json via
publish_skills_cache_reset(user_id=...) and checks the marker on every
cache lookup (global cache, per-config cache, prompt-section LRU, user
scoped entries), calling _invalidate_enabled_skills_cache() or
invalidate_user_skill_cache(). The publishing process remembers its own
generation so it does not retire the caches it just rebuilt. Every
mutation tail in routers/skills.py (install/upload, edit, delete,
rollback, enable/disable, reload) refreshes locally and then publishes the
marker off the event loop; /skills/reload answers scope=shared_config,
or scope=process when no extensions config path resolves, and a marker
publication failure is a 500 so a 200 never means only one process was
refreshed.

Docs: README, backend/docs/API.md, skills/config/mcp/gateway AGENTS.md,
and frontend skills.mdx (en/zh; also fixes the reference to a
non-existent skills/loader.py) describe the shared invalidation and drop
the per-Pod guidance. CHANGELOG entry under Unreleased / Fixed.

* docs(changelog): link the skills cache reset entry to #6495

* fix(skills): drain the reload tail and keep marker failures out of 404

Two review follow-ups on the shared skills cache reset (#6495).

POST /skills/reload awaited the local refresh and the marker publication
unshielded. CancelledError is a BaseException, so a caller that
disconnected between the two slipped past the `except Exception -> 500`
mapping, surfaced no error, and left every peer replica serving the old
skill set -- the one outcome the operator hook for external mount writes
exists to prevent. The refresh and the publication now run as one
`await_drained(_drain_skill_mutation("reload", ...))` tail, the same
discipline the install/edit/delete/rollback/toggle tails already use; the
exception -> 500 mapping and the scope response are unchanged.

Publication errors could surface as 404. resolve_shared_config_path()
only swallows the resolution-time FileNotFoundError; a config directory
that vanishes between resolution and the lock file / atomic replace still
raised FileNotFoundError from the marker write, and the install, edit,
delete and rollback handlers mapped that to HTTP 404 with the raw OS
error text for a skill that had in fact been applied. publish_skills_cache_reset()
now re-raises OSError (and a misconfigured project root's ValueError) as
SkillCacheResetPublishError, a RuntimeError that no handler maps to
404/400, so every handler reports it through its generic 500 branch; the
message names only the exception type, never a server path. The install
handler gains an explicit clause that pins that contract beside its 404
mapping.

Tests: cancelling reload after the refresh still publishes the marker;
a FileNotFoundError from the marker write yields 500 (not 404) for
install, edit, delete and rollback, 500 for the public toggle and the
generic reload error; the wrapper type is not an OSError.
2026-10-08 19:43:04 +08:00
Xuehao Xu
b5af0b0e84
fix(projects): support Windows extended-length document paths (#6467)
* fix(projects): support Windows extended-length document paths

* fix(paths): preserve Windows device and extended namespaces
2026-10-08 10:21:18 +08:00
TINGyu123644
b33e82e392
fix(tests): skip MAX_PATH-exceeding blocking-io anchors on Windows (#6361)
* test(skills): skip MAX_PATH-exceeding anchors on Windows (ref #6353)

* test(skills): skip MAX_PATH-exceeding anchors on Windows (ref #6353)

* test(skills): skip MAX_PATH-exceeding anchors on Windows (ref #6353)

* style(tests): fix import order in project blocking-io tests

* fix(tests): narrow Windows MAX_PATH skip to only the two failing attach anchors

Per review: module-level skip also skipped ingestion/thread-files
anchors that are not MAX_PATH-bound. Now only the two attach staging
anchors skip on Windows.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-06 17:15:06 +08:00
XuRuuuy
a9c8f79dfe
fix(gateway): resolve the agent factory off the event loop (#6206)
* fix(gateway): resolve the agent factory off the event loop

start_run() called resolve_agent_factory() inline, which lazily imports
the full lead-agent assembly stack (middlewares, authz, MCP, jsonschema;
measured at ~8s cold on Windows, multi-second on slower filesystems).
start_run is the single choke point every run-creation path flows
through, so the first run after Gateway startup blocked the event loop
for the whole import, stalling every other request, stream and channel
on the same loop - the loop-stall family issue #5172 fixed for agent
construction itself (the checkpoint-state path already resolves through
the assembly pool).

Resolve the factory via asyncio.to_thread: the first call pays one
worker-thread hop for the import, later runs hit the cached module.
Regression test pins the contract with a probe module whose module-level
__getattr__ records the thread that performed the from-import.

* fix(gateway): isolate factory resolution in the assembly pool

Move import regressions into the strict blocking-I/O suite and cover default-executor isolation, request context, and failure-before-admission ordering.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-06 07:52:47 +08:00
Hyeonsang Cho
b9ee8af328
fix(skills): keep custom-skill edit and storage lookups off the event loop (#6332)
* fix(skills): keep custom-skill edit checks off the event loop

update_custom_skill built the user-scoped storage, ran the editability
probes, validated the frontmatter through a temporary directory and read
the content being replaced on the Gateway loop; only the write and history
append had been offloaded. Run the pre-scan checks in one worker and the
replaced-content read in another, matching rollback_custom_skill, and build
delete_custom_skill's storage off the loop as well.

* fix(skills): build skill storage off the loop in install and skill_manage

The same sweep that moved the custom-skill edit checks off the loop finds
two more storage lookups on it: the archive-install helper behind both
install routes, and the agent's skill_manage tool, whose lookup resolves
and stats config.yaml on every call. Offload both, and pin that the
caller's user context still reaches the storage lookup now that the edit
route resolves it inside a worker.

* docs(changelog): reference #6332 for the skill storage off-loop fix

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-06 07:20:04 +08:00
Hyeonsang Cho
c2f31e440e
fix(knowledge): load the catalog's agent config off the event loop (#6313)
* fix(knowledge): load the catalog's agent config off the event loop

Both retrieval-catalog handlers called load_agent_config() directly from
async code. The agent store is synchronous: file IO on the file backend,
a sync SQLAlchemy round trip on the db backend, so a slow disk or
database stalled every other Gateway request. Offload the load with
asyncio.to_thread, matching agents.py, scheduled_tasks.py and the
run-admission path in services.py.

The strict Blockbuster anchors drive both handlers end to end against
real file and SQLite agent stores, plus the unknown-agent 404 path.

* docs(changelog): reference #6313 for the knowledge catalog fix

* Added the Chinese changelog entry back

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-05 22:17:09 +08:00
siye566
d8ca2c9358
test(community): make URL offload regressions DNS-independent (#6314)
* test(community): make URL offload regressions DNS-independent

* test(community): reject unsupported DNS fixture families

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-05 21:53:55 +08:00
Hyeonsang Cho
0223d949bf
fix(threads): remove a deleted thread's files off the event loop (#6319)
* fix(threads): remove a deleted thread's files off the event loop

DELETE /api/threads/{id} called shutil.rmtree over the thread directory
directly on the event loop, so deleting a thread with a large workspace
stalled every other Gateway request and live SSE stream until the whole
tree was gone. Branch copying in the same router already offloads its
filesystem work through run_file_io; deletion did not.

The removal now runs on the file-IO pool. It is wrapped in await_drained
rather than bare-awaited: cancelling the await abandons the worker, not
the removal, so the durable delete reservation would otherwise release
while files are still being deleted, and a newly admitted run could
write into a directory that is about to disappear.

* docs(changelog): reference #6319 in the thread delete off-loop entry

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-05 21:27:46 +08:00
Hyeonsang Cho
52046aa82e
fix(projects): convert shelf documents outside the SQLite write lock (#6305)
* fix(projects): convert shelf documents outside the SQLite write lock

Lazy conversion ran pymupdf/markitdown inside the BEGIN IMMEDIATE
transaction that serializes the derived/converted.md publish against
trash and purge. On SQLite that lock is database-wide, so every unrelated
writer (run status, thread metadata, the scheduler) waited for the whole
conversion and failed with "database is locked" past busy_timeout (30s).

Conversion now writes into .staging/ outside any transaction. The
document row lock is taken only to revalidate the live row and atomically
rename the output into place (publish_under_live_lock, renamed from
convert_under_live_lock); a row trashed or purged meanwhile discards the
staged output, so nothing is published after purge. A read-only probe
skips converting rows that are already gone, a failed conversion is
still revalidated so a purged row reports content_missing, and the
conversion is drained on cancellation so its staging file is always
removed.

* docs(changelog): reference #6305 in the shelf conversion lock entry

* fix(projects): share one conversion across concurrent first reads

A first-read conversion holds a bounded file-IO pool thread for its
whole duration. With the conversion moved out of the row lock,
concurrent first reads of one document each converted on their own
thread, so a burst of reads could starve unrelated offloaded file work.

Route the conversion through a single-flight keyed by (user, document,
project): the first reader leads and the rest wait on its result
without holding a pool thread. The map holds concurrent.futures.Future
values under a threading.Lock because the read tool also runs on the
isolated subagent loop. Followers wait through asyncio.shield, so a
cancelled follower cannot cancel the shared future, and a leader that
is cancelled or raises hands the work to a follower instead of failing
it.
2026-10-05 13:34:19 +08:00
xiaodu55
a0b7679edf
test(channels): skip the POSIX-bound mode assertions on Windows hosts (#6257)
The channel runtime config store's atomic 0o600-temp + replace + chmod
cannot land a POSIX mode on Windows, where chmod is a no-op
approximation. Skip the two POSIX-bound tests and guard the trailing
mode assertion of the chmod-failure test, keeping its platform-
independent log-behavior coverage everywhere.

Fixes #6256

Co-authored-by: xiaodu55 <xiaodu55@users.noreply.github.com>
2026-10-04 10:22:20 +08:00
Guo-Yixin
68014de157
fix(artifacts): invalidate digests after external file replacement (#6195)
* fix(artifacts): invalidate digests after external file replacement

* docs(gateway): keep artifact guidance within the module budget

* fix(artifacts): validate oversized ranges by file identity

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-03 16:23:07 +08:00
Xuehao Xu
9b17bef630
feat(channel): add QQ WebSocket channel (#6081)
* feat: add QQ WebSocket channel

* fix: address QQ channel review feedback

* docs: trim inherited agent guidance below CI limit

* fix: align QQ gateway and passive reply limits with protocol

* docs: keep merged channel guidance within CI budget
2026-10-03 14:32:44 +08:00
xiaodu55
6176b057a2
fix(mcp): drain the config read-modify-write across cancellation (#6210)
* fix(mcp): drain the config read-modify-write across cancellation

Route the five MCP config endpoints through the canonical
run_drained_write helper and fold the tools-cache reset into the drained
unit, so a cancelled caller cannot detach from the worker holding the
extensions-config locks or skip the cache invalidation behind a settled
write. Caller-facing HTTPException contracts re-raise unlogged.

Fixes #6209

* fix(mcp): type the drain helper against the worker signature and unlist drain adopters

- _run_drained_mcp_apply now mirrors the canonical helper's [**P, T]
  Callable[P, T] typing so each call site's argument list is checked;
- AGENTS.md stops enumerating the adopted routers, so the line stops
  needing an edit on every new adopter.

---------

Co-authored-by: xiaodu55 <xiaodu55@users.noreply.github.com>
2026-10-03 14:12:02 +08:00
Hyeonsang Cho
bb4f7ac5e2
fix(browser): pin browser connections to the SSRF-vetted addresses (#6201)
* fix(browser): pin browser connections to the SSRF-vetted addresses

The navigate screen and the per-request guard resolve a hostname to vet
it, but Chromium resolved the name again to open the connection. A
rebinding DNS server could answer both checks with a public address and
the connection with a private or cloud-metadata one, and the browser
followed it.

Launch each private browser through a per-session loopback SOCKS5 proxy.
Over SOCKS5 Chromium sends the hostname itself, so the proxy resolves it
exactly once through the session's egress resolver and connects only to
the addresses that resolver vetted. resolve_browser_egress applies the
same allow_private_addresses policy as validate_browser_url, on top of a
new url_safety.resolve_public_addresses helper that
validate_public_http_url now shares. Loopback is proxied explicitly with
bypass "<-loopback>". The tools, navigate_and_capture and the Live
WebSocket all pass the resolver, because a thread's first caller fixes
its launch options.

CDP-attached Chrome is unchanged. Delegated fetch services (crawl4ai,
Browserless, fastcrw) still resolve on their own side, which the Gateway
cannot pin.

* docs(changelog): reference #6201 in the browser egress pinning entry

* fix(browser): bound egress proxy faults and close, and record the WebRTC gap

Review follow-ups for the pinned browser egress proxy:

- A resolver exception other than ValueError escaped the connection
  handler as an unretrieved task error. Log it with its traceback and
  reply SOCKS5 general failure (0x01), so a resolver fault stays
  distinguishable from a policy refusal (0x02).
- Bound the resolve with its own timeout. The handshake timeout did not
  cover it, so a wedged getaddrinfo held the half-open tunnel until
  Chromium gave up. A timeout replies host unreachable.
- Bound close(): Server.wait_closed() also waits for a connection whose
  handler registered after the writer sweep, which could stall session
  close and eviction for the 15 s handshake. A handler that starts after
  close now drops its connection without opening a tunnel.
- Docs said a launched browser connects "solely" through the proxy.
  WebRTC UDP does not traverse a SOCKS proxy, so AGENTS.md, README (en/zh)
  and both changelogs now scope the guarantee to TCP and name the gap.
2026-10-03 10:05:47 +08:00
Linyao Du
616c6e2e36
fix(uploads): reject Windows staging aliases before batch ingestion (#6149)
* fix(uploads): reject Windows staging aliases before batch ingestion

* fix(uploads): cover shelf names and case-insensitive staging aliases

* test(uploads): isolate legacy alias filesystem cases
2026-10-02 22:50:30 +08:00
Hyeonsang Cho
457aa3a492
fix(community): resolve SSRF-guarded hostnames off the event loop (#6140)
* test(blocking-io): catch socket.getaddrinfo on the event loop

Blockbuster wraps socket.socket methods but not the module-level
resolver, so a synchronous hostname lookup on the loop passes the strict
gate. The SSRF guard in deerflow.community.url_safety resolves with
socket.getaddrinfo from async web tools, and the anchors added next stay
green against that unfixed code without this rule.

Add socket.getaddrinfo to _PROJECT_BLOCKING_RULES, scoped to app.* and
deerflow.* callers. loop.getaddrinfo and asyncio.to_thread resolve in a
worker thread and are not flagged. The full make test-blocking-io suite
stays green with the rule active (187 passed).

* fix(community): resolve SSRF-guarded hostnames off the event loop

validate_public_http_url resolves hostnames with blocking
socket.getaddrinfo. The crawl4ai and Browserless web_fetch, web_capture,
browser_navigate, the Gateway browser navigate route, and the Live
stream's navigate input and seed all called it directly from async code,
so a slow DNS answer for a model- or user-chosen URL stalled the Gateway
event loop for the whole lookup.

Run the guard through asyncio.to_thread at each of those call sites, the
same way personal_network already offloads it. The screening result is
unchanged. fastcrw's web_fetch is a sync tool and personal MCP validation
already runs in a worker, so neither needed a change.

* docs(changelog): reference #6140 in the SSRF guard event-loop entry

* fix(browser): run the Playwright request guard off the shared browser loop

BrowserSession._install_request_guard screens every redirect hop, iframe
and subresource by calling the SSRF guard inside the async route
callback. The guard resolves hostnames with blocking socket.getaddrinfo,
and that callback runs on the process-wide Playwright loop, which also
pumps Live frames and input for every browser session, so one slow
lookup stalled all of them.

Run the guard through asyncio.to_thread there as well, and pin it with a
strict-gate anchor that drives the real route handler. Also note in the
url_safety docstring that the screen is check-time only: a caller that
re-resolves at connect time is not pinned to the vetted IPs.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-02 22:33:48 +08:00
Zeren Wang
d3e8e78f3f
feat(authz): middleware-declared tool path Layer 1 now covers tools declared by middlewares (#6105)
* feat(authz): extension tool authorization PR2 — middleware-declared tool path

Layer 1 now covers tools declared by middlewares, which LangChain merges
into the bound tool set after the host's explicit-list filter:

- new agents/middlewares/tool_declarations.py: record the ordinary pass's
  verdict, collect declarations from the built stack, decide only the
  delta seeded by the first pass (a name denied for this build stays
  denied), narrow the stack build-locally on independent state-preserving
  copies (direct __dict__ write, refused up front for tools data
  descriptors, never mutating caller-owned instances), and verify the
  exact bound stack after the final normalization copy.
- IsolatedMiddleware ships a state-preserving __copy__ so narrowing
  survives full/delta normalization and copies of copies.
- TodoMiddleware degrades when write_todos is denied: no system-prompt
  injection, no completion/context-loss reminders, no jump_to.
- Layer 2 forwards host-resolved tool provenance into AuthzRequest.context
  and binds the infrastructure exemption to the concrete host-created
  tool object instead of a name set (tool=None goes to the provider).
- Wired into all four assembly paths (lead x2, native subagent with the
  decision offloaded via asyncio.to_thread, DeerFlowClient).

Tests: new test_middleware_declared_tools.py (35) and
test_layer2_tool_provenance.py (7); blocking-IO anchor pinning the
subagent offload (teeth verified red->green); placement-guarantee and
enforcement suites extended; executor test doubles converted for the
async _create_agent. Behavior change called out in CHANGELOG: with
authorization enabled and a tools policy that excludes write_todos,
plan-mode builds no longer bind it (built-in RBAC default unchanged).

* fix(authz): close residual gaps from review — narrow non-collectable declarations, dedupe candidates, warn on skipped pass

- apply_declared_tool_view now removes non-BaseTool declarations from the
  bound view when authorization is enabled (they would otherwise bind via
  LangChain's create_tool auto-conversion with no provider decision);
  verify_declared_tool_view fails loudly if one survives normalization
- decide_declared_tools dedupes never-submitted names so the provider sees
  each candidate once
- subagent executor logs a warning when the provider is set but the seeded
  Layer-1 state is missing, instead of skipping the declaration pass silently
- docs: middleware-declared tools must be BaseTool instances with usable names

* fix(authz): fail loudly on non-list/tuple middleware tools declarations

_iter_declared warned and returned () for a 'tools' attribute that is not
a list/tuple, but LangChain's factory iterates the attribute as-is — so a
set/generator/dict_values declaration bound with no Layer-1 decision.
Raise DeclaredToolViewError instead, matching the module's fail-loud
standard for every other un-narrowable shape. Disabled path remains a
strict no-op. Docs updated to match.
2026-10-01 18:26:58 +08:00
xiaodu55
5b0ef628e2
fix(skills): drain custom-skill mutation tails across cancellation (#6078)
* fix(skills): drain custom-skill mutation tails across cancellation

* fix(skills): log drained skill mutation failures and drain state/install tails

Address review feedback on #6078: record cancelled-then-failed mutation
tails inside the drained unit (exception type only, per the managed-models
precedent), and extend the drained tail to the remaining write-to-cache
shapes in update_skill and the skill install path.

* test(skills): pin the lock contract under the drained cancellation timing

The cancelled update_skill caller now drains its mutation tail, so
CancelledError surfaces only after the tail settles. Start the MCP
writer without awaiting the cancelled task first, assert the section
stays owned while the drained tail is in flight, then await both and
assert the final order.

---------

Co-authored-by: xiaodu55 <xiaodu55@users.noreply.github.com>
2026-10-01 10:38:35 +08:00
SuperSgdk
f74a290c42
fix(uploads): reject reserved staging filenames before batch ingestion (#6122)
* fix(uploads): reject filenames reserved for temporary staging

Guard thread and shelf upload names, validate SDK batches before copying, and preserve legacy shelf downloads. Add regression coverage and document the reserved staging namespace.

* fix(uploads): report reserved names before HTTP batch ingestion

Preflight reserved staging basenames before thread storage or sandbox setup. Return HTTP 400 with a rename hint; add HTTP and strict blocking-I/O regressions and update upload documentation.

* fix(uploads): reject Windows-style staging basenames on POSIX

Normalize backslashes before the HTTP reserved-name preflight. Add POSIX basename regressions for single and mixed batches and strict blocking-I/O coverage. Clarify the preflight scope and upload documentation.

Follow-up to the review of PR #6122; AI-assisted with OpenAI Codex.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-01 10:22:38 +08:00
Hyeonsang Cho
fe22e3899a
fix(channels): keep blocking SDK teardown off the event loop in stop() (#6134)
* fix(channels): keep blocking SDK teardown off the event loop in stop()

SlackChannel.stop() called SocketModeClient.close() inline. close() joins
the SDK's message-processor thread (~0.7s every call, measured) and waits
for in-flight listeners, whose blocking Web API calls can run up to the
WebClient timeout, so every run, stream and channel on the Gateway stalled
during shutdown and POST /api/channels/{name}/restart.

Feishu and DingTalk had the same shape: they joined their SDK threads
inline with a 5s timeout, and since those threads only return on a fatal
error, the join normally froze the loop for the full 5s.

The teardown now runs through asyncio.to_thread. Slack detaches the client
first so a still-queued connect skips it, and shields and tracks the close
task so a cancelled stop() leaves it running and a retried stop() awaits
the same close instead of closing twice.

tests/blocking_io/test_channel_stop_offloop.py anchors all three stop()
paths to the strict Blockbuster gate, driving a real slack-sdk client.

* docs(changelog): reference #6134

* fix(channels): join the Discord client thread off the event loop in stop()

DiscordChannel.stop() still joined its client thread inline with a 10s
timeout. The thread usually exits right after the cross-loop client close,
but a timed-out close or a slow _run_client() drain keeps it alive for the
whole timeout, stalling the shared Gateway loop the same way the Slack,
Feishu and DingTalk teardown did. Run the join through asyncio.to_thread so
stop() matches the channels/AGENTS.md teardown rule, and add Discord to the
strict Blockbuster anchor.
2026-10-01 10:00:53 +08:00
ZJPex
1129ee4e8a
feat: add bounded JSON syntax acceptance criteria (#5947)
* feat: add bounded JSON syntax acceptance criteria

* fix(subagents): authorize bounded local JSON acceptance reads

* docs: keep JSON acceptance guidance within chain limit

* docs: use English for JSON acceptance comments and guidance

* fix(subagents): keep unauthorized JSON probes unverified
2026-09-28 15:13:34 +08:00
Hyeonsang Cho
b72753c226
fix(gateway): load skills off the event loop in the listing and detail routes (#5945)
* fix(gateway): load skills off the event loop in the listing and detail routes

GET /api/skills, GET /api/skills/custom and GET /api/skills/{name} called
load_skills() inline. Resolving the caller's storage builds absolute
paths, and load_skills walks every public and custom skill directory and
parses each SKILL.md, so the work grows with the number of installed
skills. #5747 moved the same call off the loop for get_custom_skill and
documented why; these three routes were missed, and the strict
Blockbuster gate raises BlockingError on each of them.

Offload the load through one shared _load_user_skills helper (also used
by update_skill's reload), and add a gate module covering the three
routes including get_skill's 404 branch.

* docs(changelog): reference #5945 in the skills listing blocking I/O entries
2026-09-28 09:18:29 +08:00
Hyeonsang Cho
5b8b69bd45
fix(gateway): keep /api/user-profile filesystem work off the event loop (#5935)
* fix(gateway): keep /api/user-profile filesystem work off the event loop

GET and PUT /api/user-profile resolved the per-user USER.md path (which
builds absolute paths on every call), stat'ed, read, created the user
bucket and wrote the file inline on the event loop, while every other
handler in the custom-agent router offloads that work with
asyncio.to_thread. The strict Blockbuster gate raises BlockingError on
both; in production a slow disk stalls every other request on the worker.

Offload the whole resolve-stat-read and resolve-mkdir-write sequences,
capturing the effective user id on the loop first like the sibling
handlers. The blocking-IO gate test for this router now covers both
profile routes (missing profile, write, read back).

* docs(changelog): reference #5935 in the user-profile blocking I/O entries
2026-09-27 15:06:49 +08:00
李靖
10bd065615
feat(agents): persist tool artifacts as resolvable handles (#4676) (#4929)
* feat(agents): persist tool artifacts as resolvable handles (#4676)

MCP and sandbox tools return file paths, URLs, and task ids that are
lost when context compaction summarizes the conversation. This adds a
per-thread artifact handle registry so the model can reference
artifacts by short deterministic handles (art_xxxxxxxx) that survive
compaction and resolve to real references at the tool-call boundary.

- ThreadState.tool_artifacts: reducer channel capped at 100 entries,
  same-handle latest-wins, survives summarization compaction
- artifact_registry: deterministic handle derivation from
  (thread_id, tool_call_id, call_index); extraction precedence
  structured_content -> file/image blocks -> conservative text scan;
  HTML-escaped model-context rendering with char budget
- ArtifactCaptureMiddleware: before_model hook captures lightweight
  metadata (never content) and tracks handle consumption
- ArtifactResolutionMiddleware: rewrites handles in tool-call args to
  real references before execution; unknown handles untouched
- DurableContextMiddleware: projects the registry into the hidden
  durable-context data block ([available]/[consumed] status)
- config: new tool_artifacts section (all switches default on)
- frontend: artifact badges on tool-call steps keyed by tool_call_id

Fixes #4676

* fix(agents): harden artifact registry after review (#4676)

Review findings on #4929:

- capture/consumption updates emitted in the same before_model call are
  now concatenated instead of dict-merged; dict-merging clobbered the
  shared tool_artifacts key and permanently dropped fresh captures
- handles embed a per-result ordinal so multiple references inside one
  tool result never collide (two paths in one text block previously
  collapsed into one handle)
- structured_content extraction pulls concrete refs from known keys
  (file/path/url/task_id/..., string or list-of-string values) instead
  of storing a truncated JSON preview, falls back to an untruncated
  whole-object data entry, and no longer skips file/image content blocks
- plain-string tool results (e.g. bash/write_file output) are scanned
  for sandbox paths / remote URLs too, gated by detect_refs_in_text
- wire max_entries through configure_tool_artifact_max_entries at
  assembly (clamped 10..1000) and gate detect_refs_in_text scans
- resolution requires both enabled and resolve_handles_in_args,
  matching its docs
- add real ToolCallRequest.override coverage and the spec 14.4
  integration cycle (capture -> inject -> resolve -> consumption)

* fix(agents): address second-round artifact registry review (#4676)

Follow-up findings on #4929:

- drop generic `output`/`outputs` from structured ref keys: prose under
  those keys no longer becomes a bogus file entry (falls back to the
  whole-object data entry; path-shaped refs are still caught by the
  free-text scan)
- strip closing quotes, brackets, and backticks from detected refs so
  markdown- and JSON-wrapped paths resolve to clean real references
- remove the process-wide cap setter: the reducer enforces only an
  absolute ceiling (1000) and ArtifactCaptureMiddleware applies the
  configured max_entries per agent when emitting updates, so agents
  with different configs in one process never share or flap a cap
- skip extraction for tool messages whose tool_call_id already has
  registry entries and memoize known-empty results (bounded FIFO), so
  steady-state capture cost drops to the new message tail instead of a
  full-history rescan per model call
- correct the inverted ordering claim: capture is position-independent
  in the wrap chain because it is a before_model hook reading state
  messages; fixed the assembly comment, AGENTS.md item 15, and the
  ordering test docstring

CI parity verified locally: ruff check + format --check, full offline
suite, blocking-io suite, collect-only, uv lock --check,
check_agent_guidance, frontend format/lint/typecheck/build/tests.

* fix(agents): sliding-window cap and URI gates for artifact registry (#4676)

Third-round review findings on #4929:

- max_entries is now a sliding retention window: fresh captures are
  always registered, and when the projection exceeds the configured
  cap the middleware appends a trailing {"op": "trim_to", "keep": N}
  directive that the reducer applies by evicting the oldest entries.
  The previous remaining-budget emission froze the registry at the cap,
  permanently dropping post-compaction artifacts — the exact failure
  mode #4676 targets — and silently disabled the round-2 rescan
  optimizations at the point threads grew longest
- _track_consumption memoizes settled tool-call args in a bounded FIFO
  alongside the existing empty-result memo, so historical AIMessage
  args are not regex-rescanned every model call
- file/image content-block URLs must be http(s) or path-shaped;
  data:/blob: URIs (MCP embedded resources carrying base64 payloads)
  can no longer enter thread state, tool args, or crowd out the render
  budget; protocol-relative //host forms are rejected as well
- structured-content ref values go through the same URI-shape gate as
  content blocks, closing the embedded-payload hole via known keys such
  as url/urls
- tool_artifacts.enabled now gates the whole middleware including
  consumption tracking via an early return in before_model

Docs updated to describe the sliding window, URI gates, enabled scope,
and both bounded memos.

* fix(agents): final evictions and pending-aware consumption for artifact registry (#4676)

Fourth-round review findings on #4929:

- the sliding window interacted with the seen_call_ids skip to
  resurrect evicted entries every round: once an entry was trimmed, its
  tool_call_id left the seen set while its ToolMessage stayed in
  context, so the next model call re-extracted it, re-registered it as
  newest, and evicted something else — a never-converging rotation.
  The empty-result memo is now a unified _processed_results memo that
  records every extraction regardless of outcome, making evictions
  final; steady state over a saturated thread is quiescent (pinned by
  a multi-round test asserting no updates and zero extractions)
- the consumption scan built its handle map from pre-capture state, so
  a call referencing a handle captured in the same before_model call
  missed, got settled as quiet, and its consumption mark was lost
  forever. _track_consumption now receives the pending capture entries
  and resolves against state + pending; a call settles as quiet only
  after every referenced handle resolved, so transient misses retry
  next round instead of permanently suppressing the mark

AGENTS.md entry 15 updated to describe both memos and the
eviction-is-final semantics.

* fix(artifacts): address occurrence identity, PII and URL review findings

* fix(artifacts): enforce resolved policy checks and bounded registry handling

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-27 11:09:41 +08:00
Bxl
41e8e75f56
fix: balance temporary sandbox leases for uploads (#3261)
* fix: balance temporary sandbox leases for uploads

* fix: address sandbox upload review feedback

---------

Co-authored-by: Bxl <188532127+BXL1015@users.noreply.github.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-26 16:22:20 +08:00
yc2bgr8
cdb5028d88
feat(community): offload image search to a thread via asyncio.to_thread (#5788)
* feat(community): offload image search to a thread via asyncio.to_thread

Make image_search_tool async and run the blocking ddgs call in a worker
thread with asyncio.to_thread, continuing the TODO.md planned feature
('Replace sync requests with httpx.AsyncClient in community tools').

The ddgs SDK exposes no async API, so instead of swapping the HTTP
client the blocking DDGS.images() call is offloaded to a thread — the
same pattern the infoquest/jina_ai tools use for readability
extraction. Callers see no change in behavior.

Tests invoke the async tool via ainvoke under @pytest.mark.anyio.

* fix(image-search): offload config lookup with DDGS search

* test(image-search): pin DDGS search off the event loop

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-26 15:21:47 +08:00
haochen
fc9fb2dea2
test(lark): make blocking I/O CLI fixture work on Windows (#5826)
* test(lark): make blocking I/O CLI fixture work on Windows

* docs(tests): document portable Lark CLI fixtures

---------

Co-authored-by: Zhangchenhao-111 <285911435+Zhangchenhao-111@users.noreply.github.com>
2026-09-26 08:17:28 +08:00
yang rui
c814943215
feat(extensions): grant bounded host model invocation (#5796)
* feat(extensions): grant bounded host model invocation

* fix(extensions): retain model budgets and isolate schema validation

* fix(extensions): normalize provider-origin model cancellation

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-25 15:24:09 +08:00
Zeren Wang
82671596f3
feat(authz): add plugin resource targets, provenance, action and management enforcement (#5842)
* feat(authz): add plugin resource targets, provenance, action and management enforcement

PR1 of the extension-tool-authorization series
(docs/plans/2026-09-24-extension-tool-authorization-spec.md): plugin
authorization plumbing, no new author-facing declaration.

- `authz/plugin_targets.py` is the single encoder/validator for composite
  targets (`namespace/part`), with one validating composer behind three
  kind-checked constructors; invalid input raises instead of degrading.
- `authz/plugin_authz.py` is the harness decision layer (`plugin_action`,
  `plugin_management`, plus the batch filters the page slice will consume):
  disabled is a no-op, an explicit deny raises, and provider errors follow
  `fail_closed` like the sandbox gate.
- `POST /api/plugins/{ns}/actions/{name}` decides `plugin_action:invoke`
  after the action resolves and before the body is streamed.
- `deerflow_extension_api.auth` publishes `require_plugin_management` /
  `arequire_plugin_management` with two `app.state` resolver keys; the
  Gateway installs both. Contract version 0.2.3 -> 0.2.4.
- `tools/tool_provenance.py` records host-written plugin provenance for
  display (assembly descriptor, Layer-2 context later); no decision reads a
  label.
- Plugin providers use a `(config signature, loop key)` cache so a
  loop-affine provider is never handed to another loop or to a sync caller.
- RBAC gains `plugin_actions` / `plugin_management` aliases;
  `config_version` 47 -> 48 across the three mirrors.

Tests: new plugin target/provenance/action/management suites plus a
blocking-IO anchor whose offloads were reverted to prove red->green.

* fix(authz): decide plugin resources from the request's config snapshot

Review round 1 on PR #5842 (willem-bd).

P1 — the decision layer no longer reloads the configuration. The six
`authz/plugin_authz.py` functions take a required `app_config` snapshot (the
same request-scoped config the Gateway used to resolve the provider), and
`resolve_/aresolve_plugin_authorization` return it as a third element, so
`enabled`/`fail_closed` can never come from a second read that drifted from
the one that produced the provider. A snapshot the caller could not read at
all is *unavailable*, not disabled: it fails closed as
`authz.config_unavailable`. The Gateway's `_plugin_app_config` now separates
an absent `config.yaml` (no gate, today's behavior) from a config that exists
but cannot be read or validated (deny) instead of swallowing both through
`safe_app_config`.

P2 — `_validated_decision` requires `type(decision.allow) is bool` on both
the sync `authorize` and async `aauthorize` paths, so a provider returning
`AuthzDecision(allow="false")` is a malformed verdict that follows
`fail_closed` instead of being read as an allow.

Both fixes are covered by regression tests that were verified red against the
pre-fix behavior (P1: 200 vs 403 and resolver True vs False; P2: 12 cases
across fail_closed/fail_open and sync/async), plus tests pinning that an
absent config and `authorization.enabled: false` keep today's behavior.

* fix(authz): treat a request-time config absence as unavailable

Review round 2 on PR #5842 (willem-bd).

P1 — `_plugin_app_config[_async]` no longer maps a missing `config.yaml` to
`None` ("no gate"). A Gateway cannot have started without a readable config
(`app/gateway/app.py` reads it through this same accessor in `lifespan`), so
absence *during a request* means the configuration this process was running on
became unavailable — a hot reload, an atomic replace, a ConfigMap remount. It is
unavailable, not disabled: the error propagates,
`resolve_/aresolve_plugin_authorization` raise
`_PluginAuthorizationUnavailable(fail_closed=True)`, the action dispatcher
returns 403 and the management resolvers answer `False`. The dead
`(None, None, None)` allow path is gone, the resolvers return a non-optional
`AppConfig` as their third element, and callers key "authorization disabled" on
`provider is None` alone. This matches the rule the decision layer already
documented (`authz.config_unavailable`) and the public docs.

P2 — `_deny_reason_code` is total: a `reasons` that is not iterable degrades the
code to `authz.denied` instead of raising `TypeError` outside the guarded
provider path, which turned a denial into an unhandled error. It is deliberately
not folded into `_validated_decision`: `allow` was a real `bool`, so the verdict
is a valid denial, and treating it as malformed would flip it to an allow under
`fail_closed: false`.

Both fixes are covered by regression tests verified red against the pre-fix
behavior (P1: resolver True vs False, async `PermissionError` not raised, route
200 vs 403; P2: `TypeError: 'NoneType' object is not iterable` at
`plugin_authz.py:113`). The action-route tests in
`tests/test_plugin_contributions.py` now install a readable
`authorization.enabled: false` config instead of relying on a config-less
process, and `docs/full-stack-plugins.md` plus the PR1 decision log record the
new rule.

* fix(authz): apply the running policy when the plugin config is unreadable

Follow-up to f03d2ea9 (review round 2 on PR #5842, willem-bd).

The first attempt read the P1 finding as "absence is never disabled" and failed
every config read closed unconditionally. That is too broad for this repo: a
config-less host is deliberately treated as having no policy to apply
(`_get_route_authorization_config` falls back to a disabled config,
`sandbox_authz.safe_app_config` documents the same no-op for "CI runners and
direct-call tests"), and the rule turned the config-less e2e plugin host
(`extension_test_fixtures.bookmark_plugin_gateway`) into a 403 — the three
`bookmark-plugin.spec.ts` cases lost the save action. Reproduced locally:
`POST /api/plugins/community.bookmarks/actions/save` against that fixture host
returned 403 before, 200 after this change.

The rule is now "has this process loaded a configuration?", not "was the last
read successful?":

- No loaded config (`peek_loaded_app_config()`, new read-only accessor on
  `deerflow.config.app_config`) and no `config.yaml`: no policy to apply, so the
  gate stays a no-op — unchanged for CI runners, direct-call tests and hosts
  that mount only the plugins router.
- A loaded config whose file disappears or cannot be read: *unavailable*, never
  *disabled*. The resolvers raise `_PluginAuthorizationUnavailable` carrying the
  failure flag of the configuration this process runs on (authorization
  disabled there -> no gate; enabled -> that policy's `fail_closed`, `True` by
  default), so an enabled Gateway answers 403/False in the window instead of
  letting protected plugin actions and management routes through.
- A config file that exists but cannot be read or validated right now: fail
  closed when nothing is loaded (round 1's rule), otherwise the loaded policy
  decides.

`peek_loaded_app_config()` is preferred over a Gateway-side startup snapshot: it
reflects the last successfully loaded config, so a hot-reloaded policy is what
applies during the window, and there is no lifecycle hook to keep in sync.

Evidence: the three no-config/lost-config branches in
`tests/test_plugin_management_guard.py` and
`tests/test_plugin_action_authorization.py`, round 1's unreadable-config tests
unchanged, `test_peek_loaded_app_config_survives_a_missing_file` in
`tests/test_app_config_reload.py`, and the fixture-host probe above. Docs
(`docs/full-stack-plugins.md`, `reference.mdx` en/zh) and the PR1 decision log
state the final rule; the log records the superseded variant.

* fix(authz): keep a denial whose reasons raise while being read

* fix(authz): intersect plugin batch filters with the candidates

The plugin_page/plugin_management batch helpers returned the provider's
`filter_resources` answer verbatim, so a custom provider could hand the
projections a target that was never asked about ("*", another namespace,
a phantom page). Every other filter call site re-projects from its own
candidate list; do the same here, state the intersection on the provider
contract, and pin it with a regression test that fails on the old
pass-through.

* docs(plugins): map a management denial to 403 in the route example

The contributed-route example called `arequire_plugin_management` and let
the documented `PermissionError` escape. The Gateway installs no
`PermissionError` handler, so a route copied from the example answered 500
on a normal policy denial instead of 403. Both example routes now translate
the denial, and the surrounding bullets say why the translation is the
route's job.

* docs(extensions): point the 0.2.4 contract row at the PR that ships it

Every other row in the version-history table links the pull request that
shipped the version; 0.2.4 linked the authorization tracking issue instead.
Both the English and Chinese tables now link this PR.
2026-09-25 14:46:12 +08:00
yetuge
4a92cb579a
fix(uploads): keep document-conversion stat and write-back off the event loop (#5830)
* fix(uploads): keep document-conversion stat and write-back off the event loop

convert_file_to_markdown offloads the conversion itself for files above
1 MB (documented in its docstring), but the two bookend filesystem calls
still ran on the event loop: the size stat before the threshold check and
the write of the converted markdown afterwards — the latter a potentially
multi-megabyte write in the per-upload ingestion path. Route both through
run_file_io (the dedicated file IO pool that also keeps the caller's
context), matching the off-the-loop fixes already applied to the sibling
upload/document paths.

Add a tests/blocking_io anchor: with the converter patched to a 2 MB
payload it fails on the previous head (Blockbuster catches the blocking
os.stat first; the broad except swallows it into a None return) and
passes with this change.

* fix(uploads): address review — drain conversion write-back, make run_file_io re-entrant

Review follow-up on the off-loop conversion stat/write PR:

1. The write-back now goes through await_drained(): a plain run_file_io
   await cancels immediately while the worker keeps writing, so the
   ingestion scope could remove its private directory over an in-flight
   write and leave a large hidden partial file. The drain delivers the
   cancellation only after the worker settled, and the handler removes
   the partial output before re-raising.

2. run_file_io is now re-entrant: a nested offload issued from code
   already running inside a file-io worker (project-document conversion
   runs asyncio.run(convert_file_to_markdown(...)) inside a run_file_io
   worker) executes inline instead of submitting to the same bounded
   executor, which deadlocked with a single configured worker.

Both fixes carry deterministic regressions: the cancellation test pins
the drain ordering (cancel issued before the worker is released) and the
partial-file cleanup; the re-entrancy test pins inline execution by
thread identity. Both fail on the previous head. Full blocking_io +
project-document + conversion suites show an identical failure set to
the previous head (pre-existing Windows platform failures only).

* fix(uploads): keep cancellation authoritative when conversion cleanup fails

If the post-cancellation unlink of the staging output raised, the new
exception escaped the CancelledError handler, was swallowed by the
broad except as an ordinary conversion failure (None return), and left
both the caller's cancellation and the partial file behind. Catch and
log cleanup failures inside the handler and always re-raise the
captured cancellation; a second cancellation still passes through
untouched (CancelledError is not an Exception).

Red/green: tests/blocking_io/test_file_conversion_offloop.py gains a
regression where unlink fails while the write-back is in flight — on
the reviewed head the task settled on None (DID NOT RAISE); with the
change the CancelledError propagates and the failure is logged.

Signed-off-by: yetuge <2219677952@qq.com>

---------

Signed-off-by: yetuge <2219677952@qq.com>
2026-09-25 14:22:34 +08:00
Zeren Wang
577c39643b
feat(guardrails): add TypeSafe (Jev) pre-execution tool risk gate (#5712)
* feat(guardrails): add TypeSafe (Jev) pre-execution tool risk gate

Adds TypeSafeGuardrailProvider, a network guardrail provider that asks one
`noul` question per probed tool call and denies calls whose Jev risk
probability reaches `threshold`. It reuses the existing GuardrailProvider
slot: no middleware, config-schema or dependency changes.

Semantics that are load-bearing:

- state is strict JSON (no `default=`, `allow_nan=False`, string keys only);
  unserializable arguments, lone surrogates among them, and argument text
  above `max_state_chars` are denied locally with zero network requests,
  never truncated and sent.
- the async path cancels in-flight requests through `asyncio.timeout`; the
  sync path checks the deadline after the response headers arrive, around
  the body read and before accepting the result, and drops late results.
  No total return-time bound is promised on the sync path.
- clients are created per evaluation inside a context manager, and the
  injected `transport_factory` is called once per network-needing
  evaluation: httpx closes an injected transport with its client, so a
  shared instance would be dead on the second call.
- denial reason messages carry probability, threshold, served model version
  and state digest, so the threshold comparison can be replayed from the run
  journal; local denials record no probability or model version, and allow
  decisions stay unpersisted (the audit path is unchanged).
- provider errors carry no response body or arguments: malformed responses
  report the field and the offending type only, so a response echoing tool
  arguments cannot reach middleware logs or the evaluation report.

The online evaluation harness (`backend/scripts/eval_typesafe_risk_gate.py`
plus its labeled case set) is the threshold/tools evidence that must precede
enabling interception. It reports four mutually exclusive populations
(uncached network, cache hits, unprobed tools, local refusals), separates
model classification from local refusals and fail-closed errors, measures
latency from the caller entering `aevaluate` through cleanup, discloses
censored samples, probes DNS/TCP/TLS separately, and flags unprobed tools as
a coverage gap rather than a pass. Real responses are never written to disk.
Cache-pass samples are classified from `decision.metadata['cached']` and
counted once, warming calls are retained as an auxiliary group with their
failures named in the report and JSON, and an optional connection-probe
diagnostic can never discard completed evaluation results.

Tests: the provider suite over MockTransport plus the middleware
integration, a blocking-IO anchor that drives `aevaluate` against a real
loopback HTTP server with a meta-check proving the sync path on the loop
trips the gate, and harness cases covering the reporting defects. Every fix
above was verified to fail its new tests when reverted.

Docs: GUARDRAILS.md gains Option 4 (privacy, local-refusal trade-off,
deadline semantics, audit boundary, coverage/bypass risk, Allowlist->RBAC
migration, lone-surrogate local refusals and the no-response-body property
of error messages) and config.example.yaml gains a smoke-scope example.

Config: the new example block bumps `config_version` 46 -> 47, with the
Helm chart's embedded version and README example kept in step as
`scripts/check_config_version.sh` (chart.yaml CI) requires.

* feat(guardrails): whitelist tool calls inside the TypeSafe risk gate

Static allow rules now live in the provider instead of waiting on a composite
provider. `whitelist` mirrors `AllowlistProvider.allowed_tools`: omitted means
"not enforced", `[]` refuses every tool, and a list refuses every tool outside
it locally (`typesafe.tool_not_whitelisted`) before state construction, caching
and networking, independently of `fail_closed`. Whitelisted tools are still
probed and still denied when their risk probability reaches `threshold`, and
the whitelist is checked before the probe scope so an unlisted tool cannot
inherit an allow from being unprobed.

Deny rules stay with `authorization.*`. The policy version moves to 1.1.0, the
evaluation script reports whitelist refusals as their own population, and
`GUARDRAILS.md` / `config.example.yaml` document the allow-half migration.

* fix(guardrails): address TypeSafe risk gate review findings

- Status errors report only the numeric status. The HTTP status line is
  server-controlled like the body, and this message reaches middleware logs
  and the evaluation report, so a hostile endpoint could echo the state (raw
  tool arguments) through it.
- Expired cache entries are removed with `pop(key, None)`. Sync evaluation
  runs on executor threads when a turn produces parallel tool calls, so a
  second caller can remove the same expired entry; a bare `del` raised
  KeyError, which the middleware reports as a provider error and, under
  fail_closed, turns into a spurious denial.
- The evaluation harness states its acceptance gates inline (no missed
  dangerous call, system false-block <= 5%, uncached network p95 <= 1s)
  instead of citing a design spec that is not in the repository, and reports
  the whitelist-refusal population alongside the other four.
- `--tools` / `--whitelist` strip whitespace and drop empty entries, so
  `--tools "bash, write_file"` no longer probes only bash while treating
  `" write_file"` as an unknown tool name.
- The case set's `padding` note says top-level argument fields only, matching
  what the runner implements.

Each fix was verified by running its new test against the pre-fix code.

* refactor(guardrails): name the TypeSafe permission list allowed_tools

Align the key with `AllowlistProvider.allowed_tools` so an allowlist migration
copies it verbatim instead of translating `allowed_tools` into `whitelist`.
The companion names follow: reason code `typesafe.tool_not_allowed`, metadata
`tool_not_allowed`, harness population `not_allowed`, and the `--allowed-tools`
flag.

Semantics are unchanged: omitted = not enforced, `[]` = refuse every tool,
tools outside the list are refused locally before any state, request or cache
entry, and listed tools still face the risk gate.

* fix(guardrails): record only a bounded served model token; fail the eval exit code

Two findings from the re-review at d3f0b072.

`model` is response content, and `_model_decision` interpolated it verbatim into
the reason message -- which reaches the denied ToolMessage, the run journal,
middleware logs and the evaluation report on disk, and which the cache retains
for replay. A malformed or hostile endpoint can put an echoed tool argument,
injected text or a multi-megabyte string there. The token is now recorded as
itself only when it matches a conservative shape; anything else is recorded as
`unrecorded:sha256:<digest>`, which keeps the verdict and a stable provenance
record without echoing the value. Rejecting the response instead would turn an
odd version string into a fail-closed denial of every call the endpoint answers.
The digest path encodes with `surrogatepass` so an escaped lone surrogate -- a
value `json.loads` happily produces -- cannot raise where this must not fail.

`scripts/eval_typesafe_risk_gate.py` returned 0 even when a gate failed, so an
operator scripting `... && enable` got a green light on a failing evaluation.
`main()` now returns 1 when any gate in `report["score"]["gates"]` fails, after
the JSON report is written, and prints the failed gate names.

Tests: `test_an_unrecordable_served_model_is_digested_instead_of_echoed` (an
echoed argument, a space, a lone surrogate and an oversized value, plus the
cached replay) and `test_main_exit_code_carries_the_gate_verdict` (both
directions). Both fail against the pre-fix source.

docs/GUARDRAILS.md audit boundary updated to match.

113 passed: tests/test_typesafe_guardrail_provider.py,
tests/test_typesafe_risk_eval_script.py,
tests/blocking_io/test_typesafe_guardrail_provider.py.

* fix(evals): fail the risk-gate run when a labeled population is uncovered

Review finding on dcd38cc3. The new exit code made `_score`'s vacuous passes
load-bearing: unprobed calls are excluded from the score, so `risky_misses_zero`
is true over an empty risky population. `--tools read_file` excludes all 18
risky cases in the bundled set, so the run printed every gate as PASS and exited
0 after evaluating no risky operation at all.

`_score` now gates coverage itself: `risky_coverage_present` and
`safe_coverage_present` fail when the probe scope leaves that labeled population
with nothing evaluated, so a scope that cannot substantiate the verdict no longer
reports one. The safe side had the same vacuity -- `system_false_block_within_target`
passes trivially with zero safe cases.

Verified end to end against a loopback mock endpoint with the bundled case set:
`--tools read_file` exits 1 with `GATE risky_coverage_present: FAIL` while the
other four gates still PASS, where dcd38cc3 exits 0 on the same command.

Tests: `test_main_fails_when_the_tool_scope_leaves_no_risky_case` and
`test_main_fails_when_no_safe_case_is_in_scope` (both fail against dcd38cc3),
`test_bundled_case_set_keeps_both_labels_the_coverage_gates_require`, and the
exit-code test now runs with both populations present.

116 passed: tests/test_typesafe_guardrail_provider.py,
tests/test_typesafe_risk_eval_script.py,
tests/blocking_io/test_typesafe_guardrail_provider.py.
2026-09-24 18:20:31 +08:00
lihongyuan99
54c65d8ef6
fix(sandbox): resolve the async acquire lock path off the event loop (#5760)
* fix(sandbox): resolve the async acquire lock path off the event loop

_discover_or_create_with_lock_async offloads every step of the acquire —
ensure_thread_dirs, the lock file, cache re-checks, backend discovery and
registration — except the one line that builds the lock path itself, which
resolves through Paths.base_dir and therefore runs a syscall on the loop.

The sibling anchor documented that as "a pre-existing blocking call in this
coroutine" and stubbed the path layer to get past it. With the resolution in
a worker thread the stub is no longer needed, so this removes it and pins the
behaviour with an anchor of its own.

* test(sandbox): word the offload anchor against the state after the stub removal

* test(sandbox): pin that the gate still catches an inline thread_dir call

The lock-path anchor only asserts execution reached the lock file, so it would
stay green if the gate stopped instrumenting the syscalls behind Path.resolve()
and the inline call were restored. Add a meta-check next to the store probe's:
call thread_dir() directly on the event loop under the same isolation and
assert BlockingError.
2026-09-24 15:19:50 +08:00
lihongyuan99
c10068fd27
fix(channels): resolve the Buzz seen-event store path off the loop (#5759)
_start_channel built the default seen-event store path inline, and
Paths.base_dir resolves through realpath. Channel startup reaches that
wiring from POST /api/channels/{name}/restart, so every restart ran a
filesystem syscall on the Gateway event loop; the rest of the same
function already keeps its disk IO in a worker thread.

The existing wiring test stubs get_paths with a plain-string base_dir,
so it cannot see the syscall. The new anchor keeps the real Paths object
and isolates it with DEER_FLOW_HOME instead.
2026-09-23 23:24:51 +08:00
xiaodu55
736b5a4216
fix(gateway): keep custom-skill rollback filesystem IO off the event loop (#5751)
* fix(gateway): keep custom-skill rollback filesystem IO off the event loop

Closes #5747. Three blocking sites remained on the Gateway event loop in
the rollback route and its shared response reader, all offloaded through
asyncio.to_thread following the #5729 pattern:

- storage.validate_skill_markdown_content() creates a temp dir and writes
  SKILL.md into it (site 1)
- the post-scan read of the file being replaced (site 2, named by #5729's
  test docstring)
- _read_custom_skill_response(): load_skills() walks every skill directory
  and read_custom_skill() opens SKILL.md — O(installed skills) loop time
  paid per accepted rollback and per GET /skills/custom/{name} (site 3)

A blocking_io regression drives the full accepted-rollback path (past the
security scan) under the strict gate; the two pre-existing cases only
covered the pre-scan branches.

* fix(gateway): keep the skill element type in the response-parts closure

Review nit on #5751: tuple[object, ...] erased the element type for the
_skill_to_response call; Skill is already imported in this module.
2026-09-23 15:38:40 +08:00
lihongyuan99
fff7aa6a18
fix(skills): rollback reads its history file off the event loop (#5729)
* fix(skills): rollback reads its history off the event loop

rollback_custom_skill constructed the user-scoped storage, probed whether the
skill exists and parsed custom/.history/<name>.jsonl inline, while the sibling
get_custom_skill_history two lines above already offloads exactly those three
steps and documents them as "blocking filesystem IO that must stay off the
event loop". The history file grows one entry per edit carrying full previous
and new content, so a rollback request parsed the whole edit history on the
Gateway loop; the strict Blockbuster gate catches the construction as a blocking
os.getcwd() through SkillsConfig.get_skills_path() -> project_root().

Offload the three steps through the same worker-thread closure and anchor both
pre-scan branches under tests/blocking_io/.

* test(skills): address rollback anchor review feedback

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-22 21:50:59 +08:00