82 Commits

Author SHA1 Message Date
Ryker_Feng
a028dfd5fb
feat(auth): add keep me signed in login option (#4255)
* feat(auth): add keep me signed in login option

* fix(auth): address remember-login review feedback
2026-07-18 22:17:15 +08:00
Ryker_Feng
f8bef42a04
fix(wechat): validate timing configuration (#4280) 2026-07-18 17:53:30 +08:00
Aari
a0e1d82ef4
fix(workspace-changes): offload blocking filesystem IO in text-cache lifecycle (#4268)
* fix(workspace-changes): offload blocking filesystem IO in text-cache lifecycle

capture_workspace_snapshot and record_workspace_changes offload their scans via
asyncio.to_thread, but ran the snapshot text cache's whole lifecycle on the event
loop: roots resolution (os.path.abspath), tempfile.mkdtemp, and shutil.rmtree on
both the capture-failure branch and record_workspace_changes' finally. That
finally runs on every agent run, including abort paths, so each run removed up to
max_files cached texts on the loop.

Offload the roots + mkdtemp prep through one _prepare_capture worker hop, and
route both rmtree call sites through _remove_text_cache_dir. Cleanup stays
best-effort: it swallows and logs, so a failing cleanup cannot replace the
exception or result already in flight. asyncio.shield is deliberately not used --
to_thread submits to the pool immediately, so cancelling the future does not stop
the running thread and the cache is still removed under single and repeated
cancellation. Externally observable behavior is unchanged.

Found via `make detect-blocking-io`: these were the last 2 HIGH findings in the
repo, which now reports none. The roots resolution is invisible to that scanner
(sync helper, cross-file call) but blocks the same async path, and the anchor
cannot reach the rmtree without it.

Add tests/blocking_io/test_workspace_changes_recorder.py, driving the
capture-failure branch and the record finally. Teeth verified per clause under
the strict Blockbuster gate: reverting each offload alone reddens its own call
(os.path.samestat for rmtree, os.path.abspath for roots/mkdtemp).

* fix(workspace-changes): make text-cache prepare handoff cancellation-safe

_prepare_capture creates the mkdtemp cache dir inside the to_thread worker, so a
run cancelled after mkdtemp but before the coroutine receives the path orphaned
the dir. Shield the prepare future and, on cancellation, reclaim its result to
remove the dir before re-raising. mkdtemp stays offloaded (the blocking-io gate
flags os.mkdir from deerflow code). Adds a deterministic cancellation regression.

* fix(workspace-changes): drain repeated cancellation in text-cache reclaim

The mkdtemp handoff guard reclaimed the shielded worker's result on the first
CancelledError, but the reclaim await was itself cancellable: a second cancel
landed there, slipped past `except Exception` (CancelledError is BaseException),
and skipped the reclaim while the shielded worker still finished — orphaning the
deerflow-workspace-changes-* dir. Repeated cancelled runs accumulate leaks.

Move reclaim+remove into a task the caller cannot abandon and drain repeated
cancellation until it completes, then restore the cancellation. A repeat cancel
interrupts the await, not the task, so the dir is never abandoned; the loop exits
only once cleanup has finished, leaving no pending task. Non-cancel paths are
unchanged.

Adds test_capture_workspace_snapshot_repeated_cancellation_leaks_no_text_cache
(double-cancel regression). make test-blocking-io: 43 passed.
2026-07-18 17:30:14 +08:00
Huixin615
c9b6131f8f
fix(skills): reload mounted skills without restarting Gateway (#4264)
* fix(skills): add admin-only reload endpoint

* fix(skills): preserve cache when reload fails
2026-07-17 23:22:16 +08:00
hataa
10890e10a8
feat(authz): propagate trusted authorization principal context (#4203) 2026-07-17 14:49:51 +08:00
Huixin615
f9340c1f08
test(mcp): cover passive skill tool visibility (#4247)
* test(mcp): cover passive skill tool visibility

* test(mcp): tighten deferred discovery coverage
2026-07-17 14:39:35 +08:00
Huixin615
65afc9b1d2
fix(skills): apply allowed-tools only to active skills (#4098)
* fix(skills): scope allowed-tools to active skills

* fix(skills): tolerate stale active skill paths

* chore: retrigger CI

* fix(skills): document policy activation limits

* perf(skills): reuse per-step tool policy decisions

* fix(skills): harden runtime tool policy contracts

* fix(skills): redact cached policy decisions

* fix(skills): make slash tool policy authoritative

* fix(skills): preserve policy-safe discovery tools

* test(skills): cover explicit task delegation policy
2026-07-16 14:12:02 +08:00
AochenShen99
94a34f382d
feat(context): record effective memory identity per run (#3556)
* feat(context): record effective memory identity per run

* fix(context): address memory identity review feedback

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-16 09:39:09 +08:00
Tianye Song
8da7cbf028
feat(memory): LLM-assigned per-fact expected_valid_days and staleFactsToExtend (#4143)
Re-ports this feature onto the pluggable-memory backend introduced in #4122
(the original #4143 was force-pushed clean by accident and auto-closed). The
#4122 refactor moved the staleness logic into the self-contained DeerMem
backend (backends/deermem/deermem/core/) and reverted it to the pre-feature
global-threshold version, so the per-fact lifetime work is re-applied here
against the new module layout + DI (MemoryUpdater is now (config, storage,
llm)-injected; config lives on DeerMemConfig, not host MemoryConfig).

**expected_valid_days (creation)**
The LLM assigns a per-fact review window when storing each new fact. The
prompt exposes five tiers (<=14 d transient -> >365 d very stable). The value
is capped at write time by staleness_age_days x staleness_max_lifetime_multiplier
(default 20.0 -> 1800 d ~= 5 years; range 1.0-100.0) so the model cannot set
an initial lifetime so long the fact is never re-evaluated. The default 20.0
makes the "> 365 d very stable" tier achievable out of the box (3.0 silently
clamped it to 270 d).

**staleFactsToExtend (review)**
During staleness review the LLM can emit extension entries for kept facts
whose window seems miscalibrated. new_evd = min(days_since_created +
extend_by_days, staleness_max_extension_days). Extensions use an absolute
ceiling (default 3650 d ~= 10 years; range 90-36500) rather than the creation
multiplier - they are deliberate review decisions that must be able to advance
the window beyond the initial cap, but the absolute bound prevents timedelta
overflow (a model-supplied extend_by_days of 10**9 previously crashed every
later candidate-selection pass with OverflowError) and LLM misfire.

**Invariant correctness**
- Read-time cap removed from _effective_fact_staleness_age; cap is write-time
  only so extensions actually advance the review window.
- proposed_remove_ids hoisted out of the removals sub-block and used to exclude
  from extension, so a cap-surviving proposed-removal fact is never extended.
- extend_by coerced to int before the > 0 guard (a fractional 0.9 would pass
  the float check then int() to 0, silently writing a zero-delta extension).
- days_since uses total_seconds() // 86400 (not .days truncation).
- staleness-section html.escape uses quote=False to match the prompt.py
  convention; only <, >, & break element-text structure.

**Tests**
test_memory_staleness_review.py was module-level skipped by #4122 ("full
unit-test migration is a follow-up"). This PR performs that migration: DI
construction via (DeerMemConfig, _FakeStorage), _build_staleness_section back
to the (candidates, config) signature, plus new coverage for per-fact
selection, EXTEND with the absolute cap, the overflow next-cycle regression,
the proposed-removal-not-extendable case, fractional extend_by skipping, and
the creation-time cap. 67 tests, all green.
2026-07-16 09:34:21 +08:00
Nan Gao
de55982c5a
fix(subagents): preserve parent checkpoint namespace (#4215)
* fix(subagents): preserve parent checkpoint namespace

* test(subagents): align stream isolation coverage
2026-07-16 07:03:08 +08:00
Daoyuan Li
45865e9f3f
fix(tracing): attach Langfuse trace metadata to the goal evaluator (#4202)
The goal evaluator (runtime/goal.py) runs from runtime/runs/worker.py after
the main graph run has already completed, so there is no graph root for it
to inherit tracing from. create_goal_evaluator_model was built with
attach_tracing=False, and evaluate_goal_completion invoked the model with a
bare config={"run_name": "goal_evaluator"} — no tracing callbacks, no
Langfuse session/user attribution. Every goal-evaluator LLM call went
untraced.

Same class of gap fixed by #2944 for the main agent graph and by #3902 for
memory_agent/suggest_agent: a standalone call site that invokes a model
directly instead of through a traced graph root must attach its own tracing
callbacks and inject Langfuse trace-attribute metadata itself.

- create_goal_evaluator_model: attach_tracing=False -> True, matching the
  other standalone non-graph callers (oneshot_llm.run_oneshot_llm,
  MemoryUpdater).
- evaluate_goal_completion: accept optional thread_id/user_id/
  deerflow_trace_id and inject Langfuse trace metadata onto the ainvoke
  config via the shared inject_langfuse_metadata() helper, mirroring
  oneshot_llm.py's pattern.
- worker.py: thread user_id (resolve_runtime_user_id(runtime)) and
  deerflow_trace_id through _prepare_goal_continuation_input into
  evaluate_goal_completion so the evaluator's trace groups under the
  triggering run's thread/session.

Updates the existing test that pinned attach_tracing=False as expected
behavior, and adds a regression test asserting the ainvoke config carries
Langfuse trace metadata when enabled.
2026-07-15 22:30:34 +08:00
Huixin615
3247f61750
fix(middleware): sanitize invalid tool call arguments (#4193)
* fix(middleware): sanitize invalid tool call arguments

* refactor(middleware): share tool argument parsing
2026-07-15 22:06:29 +08:00
Tu Naichao
959bf13406
fix(memory): flush memory queue on graceful shutdown to prevent loss (#4181)
* fix(memory): bounded shutdown flush via MemoryManager.shutdown_flush

Re-applies the memory-queue shutdown drain on top of the pluggable
MemoryManager abstraction (#4122): the old top-level MemoryUpdateQueue
singleton is gone, so the drain is now a backend contract instead of
host code reaching into the queue.

- MemoryManager ABC: shutdown_flush(timeout) -> bool. Every backend
  implements a bounded graceful-shutdown drain.
- DeerMem: queue.flush_sync (daemon-thread + Event.wait hard timeout
  for the uninterruptible sync LLM call; joins an in-flight worker
  first so contexts a debounce Timer already pulled out are not lost on
  exit; skips inter-item sleep on the drain path; per-item
  succeeded/failed count), exposed via shutdown_flush.
- noop: shutdown_flush is a clean no-op success.
- Gateway lifespan: call get_memory_manager().shutdown_flush(timeout)
  after channels/scheduler stop, via asyncio.to_thread, try/except
  bounded. No host-level pending/processing guard -- the backend
  short-circuits on an idle buffer, so the host cannot "forget" the
  in-flight case (structurally eliminates the guard race flagged on the
  prior revision).
- shutdown_flush_timeout_seconds added to the shared MemoryConfig
  (host-owned lifecycle budget, default 30, 1-300) + exposed on
  MemoryConfigResponse and the embedded client; config_version 25 -> 26.

Tests: queue flush_sync (7), lifespan drain incl. False-branch caplog
assertion + disabled gate (3), ABC contract noop/deermem (3).

* fix(chart): gateway grace period so memory drain is not SIGKILLed

K8s defaults terminationGracePeriodSeconds to 30s, shorter than the
Gateway's graceful-shutdown work (channel stop ~5s + memory queue drain
default 30s). Without an explicit grace period, K8s SIGKILLs the memory
drain mid-flight and silently re-introduces the loss shutdown_flush is
fixing (flagged on the prior revision).

- gateway pod: terminationGracePeriodSeconds (default 45, configurable).
- gateway container: preStop sleep (default 5, 0 disables) so the
  Service/ingress deregisters the pod before SIGTERM begins the drain.
- values.yaml + README: both configurable; README documents that the
  grace period must track memory.shutdown_flush_timeout_seconds.

* docs(memory): document shutdown_flush_timeout_seconds + lifespan drain

Add the host-shared field to the memory config list and Config Schema
summary in backend/AGENTS.md, noting the lifespan drain and the K8s
grace-period relationship.

* fix(chart): bump embedded config_version to 26

The chart's embedded `config:` block (values.yaml + README example) still
had config_version: 25 after commit f3ca8e9f raised config.example.yaml to
26, failing the validate-chart config_version drift check. Bump both to 26.
2026-07-15 20:25:41 +08:00
Daoyuan Li
cdefd4a8aa
fix(mcp): invalidate tools cache on config content + path, not just newer mtime (#4124)
* fix(mcp): invalidate tools cache on config content + path, not just newer mtime

The MCP tools cache invalidated only on a strict extensions-config mtime `>`
comparison and tracked no resolved config path, so `_is_cache_stale()` missed:

- content changes with an unchanged mtime (same-second edits; object-store /
  network mounts that do not bump mtime);
- content changes with a backward mtime (git checkout, cp -p / backup restore,
  tar / rsync preserving timestamps);
- a resolved-path switch to a different config file with mtime <= the recorded
  value (structurally invisible — no path was tracked at all).

On multi-worker (uvicorn/gunicorn) or stale-mtime deployments this leaves the
LangGraph-embedded runtime and every non-writer worker serving stale MCP tools
after `PUT /api/mcp/config`, breaking the module's documented promise that
changes made through the Gateway API are reflected in the embedded runtime.

Record the resolved config path and a `(mtime, size, sha256)` content signature
at initialization and invalidate when the path OR the signature differs (`!=`),
mirroring `config/app_config.py::get_app_config()` so the two runtime-editable
config files share one content-based staleness signal. The per-call stat was
already paid, and the small-file sha256 matches the cost app_config pays per
request. The "config missing / not yet initialized" no-op behavior and the
cache reset endpoint are preserved.

Adds backend/tests/test_mcp_cache.py covering all three failure modes plus
unchanged-file and forward-edit sanity cases. Also folds in an incidental
backend/AGENTS.md doc-sync: the restart-required field list was missing
`scheduler` and `run_ownership`, both present in
reload_boundary.py::STARTUP_ONLY_FIELDS.

* test(mcp): pin cache staleness contracts raised in review

Two review observations on the content-signature cache fix, both raised as
non-blocking design questions rather than bugs:

- Whether relying on mtime+size alone (skipping the sha256) could ever be
  "optimized" back in, reopening the narrow same-second / identical-length
  swap gap the signature was built to close.
- Whether the extensions config being deleted entirely after a successful
  init leaves the cache in a defined state, since current_signature flips
  to None and _is_cache_stale() returns False.

Neither is a behavior change: both were already the intended contract,
preserved verbatim from the pre-fix mtime-only code (which also returned
False once the file could no longer be stat-ed). Record the reasoning
inline and add regression tests that pin each contract so a future change
cannot alter either silently:

- test_same_mtime_same_size_swap_is_stale: a same-length server-name swap
  that leaves mtime AND size unchanged (the precise scenario from review,
  sharper than the existing same-mtime test, which also changes size) is
  still caught only because the sha256 is computed unconditionally.
- test_config_deleted_after_init_is_not_stale: deleting the config file
  after init keeps the cache serving its last-known-good MCP tools instead
  of invalidating into an unconfigured state.

Both new tests were confirmed to fail against a deliberately reintroduced
version of the regression they guard (hash short-circuit / removed
None-guard), then confirmed to pass against the real code.
2026-07-14 22:40:51 +08:00
AnoobFeng
446fa03801
fix(context): resolve context compress bug (#4065)
* fix(runtime): persist original human input outside model sanitization

* refactor(history): load thread messages by global event sequence

* fix(frontend): make summarization rescue a transient history bridge

* fix(frontend): old message not append tail

1. add identity anchor
2. add bridgeOrder

* fix(frontend): lint error fix

* fix: address review feedback and harden pagination coverage

- defer transient history ref writes until after render commit
- cover large middleware-only history scans
- verify infinite-query refetch recalculates page cursors
- document AI event types and anchor-weaving differences

* fix: harden message pagination and enrichment

- append unmatched live tails after canonical history
- warn and stop when pagination has_more lacks a cursor
- deep-copy restored UI messages to isolate model-facing content
- log invalid event sequence and non-advancing cursor errors
- pass user_id explicitly through event-store history queries
- cover middleware-only AI runs across memory, JSONL, and DB stores

* fix: address pagination review feedback

* fix(frontend): checkpoint has unknow redener content, optimize the anchor policy

* fix(frontend): unit test issue missed previously, remove the TanStack cache trimming

* fix(gateway): harden message history queries and provenance

- reject externally forged original_user_content metadata
- validate provenance metadata in upload and sanitization middleware
- make run lookups fail closed by default
- batch feedback queries by run ID
- align memory message filtering with persistent stores
2026-07-14 10:43:13 +08:00
Mohammed Ansari
4af6178358
feat(trace): add agent observability with Monocle (#4024)
* Add Monocle tracing

Enable Monocle (OpenTelemetry tracing for LLM apps) with one setup call plus the monocle_apptrace dependency. setup_monocle_telemetry auto-instruments the frameworks already in use and writes traces to .monocle/. Additive; no changes to application logic.

* Config-gate Monocle telemetry in the Gateway lifespan

Addresses review on #4024: moves setup_monocle_telemetry out of agents/__init__ import time into the Gateway lifespan, gated by MonocleTracingConfig (MONOCLE_TRACING env, default off). Warns on the Langfuse/global-OTel-provider conflict and relies on monocle_apptrace's own duplicate-setup guard and existing-provider attach. Pins monocle_apptrace>=0.8.8 (+ uv.lock), adds .monocle/ to .gitignore, adds tests (default-off / toggle-on / no import-time setup), and documents exporters, Okahu, and the VS Code viewer in README, config.example.yaml, and backend/AGENTS.md.

* Clarify Monocle/Langfuse single-provider guidance

Make the docstring, warning, and AGENTS.md consistent with the README: only one library can own the global OpenTelemetry provider; Monocle initializes at startup before Langfuse's per-run handler, so enabling both drops Langfuse's spans — enable one OTel tracer (LangSmith, a callback, coexists fine).

* Address review: optional extra, exporter validation, off-box warning, tests

Responds to the second review round.

- Make monocle_apptrace an optional extra (deerflow-harness[monocle], re-exposed
  as deer-flow[monocle]) following the boxlite/tui precedent, so a default
  install no longer pulls the OpenTelemetry stack. It stays pinned in the dev
  group for the tracing tests, and enabling MONOCLE_TRACING without the extra
  raises a clear install error.
- Warn loudly at startup whenever any exporter other than `file` is configured,
  since those move prompts, tool inputs/outputs, and completions beyond the
  local .monocle/ directory.
- Validate MONOCLE_EXPORTERS against the known exporter names and require
  OKAHU_API_KEY when okahu is selected, mirroring the Langfuse pattern.
  Validation runs from Monocle's own init (not validate_enabled) so a config
  typo can never fail agent runs; errors surface at Gateway startup instead.
- Grow the tests from 5 to 13: caplog coverage for the Langfuse-conflict and
  off-box warnings, exporter validation cases, a stronger import-time
  regression that asserts the global TracerProvider is not replaced, and a
  subprocess double-invoke test exercising the real check_duplicate_setup.
- Docs: config.example.yaml block retitled to a dedicated tracing header;
  README documents the [monocle] install and scopes tracing to Gateway runs.

* docs: align Monocle README section with the other tracing providers

Lead with what Monocle is and captures, drop the install step (the dev
group already ships monocle_apptrace via uv sync; unusual installs get
the RuntimeError), and point the missing-package error at the repo-native
command (uv sync --extra monocle / deerflow-harness[monocle]).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Address review: verified Langfuse coexistence, lifespan test, scope docs

Responds to the third review round.

The Langfuse conflict claim was wrong, verified empirically against langfuse
4.5.1 in both init orders: whichever library initializes second reuses the
existing global TracerProvider and attaches its own span processor, so neither
side loses spans. Dropped the warning and its tests, corrected the README,
AGENTS.md, and config.example.yaml statements, and pinned the verified behavior
with test_coexists_with_langfuse (real monocle + real langfuse in a subprocess,
no mocks). One honest caveat documented: both processors see all spans, so
Monocle's exporters also capture Langfuse's spans when both are enabled.

Also from the review:
- Document the Gateway-only scope in AGENTS.md: the lifespan is the sole call
  site, so the embedded DeerFlowClient and TUI are not instrumented; embedded
  users call setup_monocle_tracing_if_enabled() themselves.
- Add test_gateway_lifespan_initializes_monocle pinning the lifespan wiring.
- Comment why MonocleTracingConfig.is_configured is intentionally coarser than
  LangSmith/Langfuse (composite validation lives in validate() at startup).
- Note that monocle_exporters_list takes the comma-separated string as-is.
- Module-level importorskip("monocle_apptrace") so minimal installs collect
  the test module cleanly.

* docs: reword Monocle intro sentence

* fix(tests): run the import-time regression in a subprocess

test_no_import_time_setup deleted deerflow.agents* from sys.modules and
re-imported to force __init__ to re-execute. The re-import creates new module
objects, and restoring the old sys.modules entries afterwards leaves the parent
package's attribute bindings pointing at the new ones, so any later test that
resolves a deerflow.agents.* dotted path (monkeypatch.setattr in
test_summarization_middleware, test_thread_data_middleware, and others) failed
with "module 'deerflow.agents' has no attribute ...".

Run the check in a subprocess instead: the import is genuinely fresh, the
assertion is stronger (the provider must still be the SDK-less proxy, proving
nothing was installed at any point), and no module identity leaks into the
rest of the suite.

* Address review: console warning scope, embedded hint, honest naming, doc alignment

Responds to the post-approval review round:

- Scope the off-box exporter warning to the remote exporters (okahu, s3,
  blob, gcs): console writes to local stdout and no longer trips it.
  config.example.yaml's data-handling note now distinguishes file /
  console / remote likewise.
- Rename MonocleTracingConfig.is_configured to is_enabled so the boolean
  reads as what it checks; the exporter-dependent credential check stays
  in validate(), run at Gateway startup.
- Hint on the embedded path: build_tracing_callbacks() logs a debug line
  when MONOCLE_TRACING is set but setup never ran in this process, so
  embedded DeerFlowClient/TUI users are not left with silent no-op
  tracing. Backed by a process-global setup flag.
- Re-export setup_monocle_tracing_if_enabled from deerflow.tracing,
  matching the package convention.
- Note the deliberate fail-open-at-startup contrast with
  LangSmith/Langfuse in the lifespan, and the OTel SDK-internals
  dependency in the coexistence test.
- Test hygiene: clear MONOCLE_* env in the tracing config/factory
  fixtures; reset the setup flag in the monocle test fixture; reword the
  README Langfuse-spans claim as the shared-provider inference it is.
- Document that .monocle/ trace files are never rotated or cleaned up.

* fix(tests): pin the factory logger level in the embedded-hint tests

configure_logging() from earlier tests in the full suite pins an explicit
INFO level on the logger hierarchy, so a root-level caplog.at_level(DEBUG)
never sees the factory's debug hint. Scope caplog to
deerflow.tracing.factory so the test is independent of suite ordering.

* Address review: co-export disclosure, lifespan failure test, exporter parse dedup

- Off-box warning now notes that Langfuse's spans are exported too when
  both providers are enabled and share the global OTel provider; pinned
  both ways by tests.
- Pin the lifespan fail-open contract: a raising Monocle setup is logged
  and the Gateway keeps serving (pragma dropped now that the path is
  exercised). README notes a config error is reported at startup and
  tracing stays off until restart.
- Hoist exporter parsing into MonocleTracingConfig.exporter_list so
  validate() and the off-box warning cannot diverge, and note the
  upstream coupling on the exporter allow-list.
- Reduce config.example.yaml's Monocle block to a pointer; the capture,
  retention, and data-handling detail lives in README's Monocle section.

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-14 08:58:06 +08:00
heart-scalpel
b53c1ae0e0
fix(runs): cancel degrades to lease takeover for multi-worker (#4064)
* fix(runs): cancel degrades to lease takeover for multi-worker

Work item 4 of the multi-worker ownership epic
(https://github.com/bytedance/deer-flow/issues/3948).

Problem: POST /runs/{run_id}/cancel landing on a non-owning worker
returns 409 — the cancel button silently fails under GATEWAY_WORKERS>1
with no sticky routing. cancel() required the current worker to hold
the in-memory task/abort_event, which any non-owner pod cannot satisfy.

Changes:
- RunManager.cancel() returns CancelOutcome enum (cancelled /
  taken_over / lease_valid_elsewhere / not_active_locally /
  not_cancellable / unknown) instead of bool, so the router can map
  each outcome to the right HTTP response.
- New store primitive claim_for_takeover(): a single atomic
  conditional UPDATE that marks a run as error only when
  status IN (pending, running) AND (lease IS NULL OR
  lease < now - grace). Closes the stale-read / concurrent-heartbeat
  race — if the owner renews between our read and write, the UPDATE
  matches 0 rows and we surface lease_valid_elsewhere.
- HTTP cancel + stream-join endpoints route on CancelOutcome:
  cancelled -> 202 (or 204 with wait=true); taken_over -> 202
  immediately (no SSE streaming — the run is terminal on another
  worker, streaming would hang); lease_valid_elsewhere -> 409 +
  Retry-After header computed from lease_expires_at + grace_seconds.
- RunManager.grace_seconds exposed as a public property; the router
  no longer reaches into _run_ownership_config.
- _is_lease_expired extracted to a module-level function, shared by
  RunManager.cancel() and MemoryRunStore.claim_for_takeover().
- GATEWAY_WORKERS=1 + heartbeat_enabled=false is zero-regression:
  the non-local path short-circuits to not_active_locally, preserving
  the original 409 behaviour the existing tests pin.

Tests: 12 new (5 store primitive + 4 cancel-takeover unit + 3 HTTP
including a regression guard verifying POST /stream?action=interrupt
on a dead-owner run returns 202 instead of hanging on SSE).
244 directly-related tests pass; 36/36 blocking-IO gate pass.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(runs): guard update_status and self-terminate on takeover

Two defenses close a split-brain window where the original owner
could overwrite a peer's takeover status:

- update_status (SQL + memory store) now guards on
  status IN ('pending','running'). When takeover already set
  the row to 'error', the owner's final status write matches
  0 rows and is dropped.

- _persist_status: when update_status returns False, check
  whether the row exists before attempting recovery via put().
  If the row exists (takeover by another worker), skip recovery
  instead of blindly upserting over the takeover.

- Heartbeat _renew_leases: when update_lease returns False
  (row no longer pending/running or owner changed), cancel the
  local task so wasted CPU is bounded to the next heartbeat
  tick (~10s) instead of the full task lifetime.

Also fix three reviewer feedback items:

- Re-fetch the store row when cancel() returns
  lease_valid_elsewhere, so Retry-After uses the owner's
  freshly-renewed lease instead of a stale value from
  request start.

- Fallback 'unknown' in takeover error message when
  owner_worker_id is NULL (pre-ownership data).

- Remove dead else-10 branch from grace_seconds property
  (unreachable — all callers are downstream of the
  heartbeat_enabled guard).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* test(runs): pin split-brain defences from update_status guard + heartbeat

Three tests lock down the takeover authoritativeness so a
late-running owner cannot overwrite a peer's claim:

- update_status must reject writes when the store row is already
  terminal (taken over by another worker).
- _persist_status must skip row-recovery via put() when the row
  exists but has been taken over.
- Heartbeat _renew_leases must cancel the local task when
  update_lease returns False (row claimed by another worker).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(runs): precise outcome + log when local cancel loses to peer takeover

Two reviewer precision nits on the split-brain defence:

- _persist_status: branch the skip-reason log on existing["status"].
  error → WARNING "peer takeover" (anomalous); interrupted/success →
  INFO "local cancel/completion race" (expected when user hits stop
  as the run finishes). Stops noisy false-positive takeover warnings
  in operator logs.

- cancel() local path: when _persist_status returns False, re-check
  the store. If a peer's claim_for_takeover flipped the row to error
  between our in-memory cancel and the guarded update_status, surface
  taken_over instead of cancelled so the client sees a status
  consistent with the store.

Test: test_cancel_returns_taken_over_when_peer_claims_during_local_cancel
pins the race outcome.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(runs): widen update_status guard, de-duplicate lease helpers, add coverage

Round 3 of reviewer feedback:

- Widen update_status guard to status IN ('pending','running','interrupted').
  The original guard blocked interrupted→error (the rollback finalize path),
  losing the "Rolled back by user" message. interrupted is now permitted
  while error/success stay locked — takeover protection unchanged.

- claim_for_takeover False now re-reads the store row to distinguish causes:
  owner renewed lease → lease_valid_elsewhere; row went terminal →
  not_cancellable; another worker already took it over → taken_over.

- Extract _raise_lease_valid_elsewhere() helper to de-duplicate the
  409+Retry-After block shared across cancel_run and stream_existing_run.

- Extract _lease_expired_or_null() in persistence/run/sql.py to
  de-duplicate the lease-expiry SQL WHERE clause shared by
  claim_for_takeover and list_inflight_with_expired_lease.

- 11 new tests: 5 SQL-layer claim_for_takeover (expired/valid/NULL/
  terminal/nonexistent), 3 _compute_retry_after unit (NULL/unparseable/
  normal), 2 claim re-read precision (terminal/takeover), 1 stream
  endpoint 409+Retry-After.

Not addressed (non-blocking, reviewer agreed):
- The 2–3 store.gets in the takeover cold path: optimizing the API to
  accept a pre-fetched record would couple the router to the manager
  more tightly than justified by the perf gain.
- The lease-expiry inline loop in MemoryRunStore.list_inflight_with_-
  expired_lease pre-computes cutoff once for all rows; switching to the
  shared _is_lease_expired helper would recompute datetime.now() per row
  with no real benefit.

260 related tests pass; 36/36 blocking-IO gate pass; ruff clean.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(runs): de-duplicate lease-expiry helper, restore defensive fallback

Address final round of review feedback:

- Extract is_lease_expired to deerflow.utils.time (no _ prefix, public
  utility). Manager and MemoryRunStore now import from the same place
  instead of the store reaching backward into the manager for a private
  function.

- Restore defensive else-10 fallback in grace_seconds property (removed
  in an earlier round). The guard is unreachable for current callers but
  protects future ones from AttributeError.

- Comment the transient in-memory interrupted vs store error state when
  a local cancel is superseded by a peer takeover.

- Comment the max(1, ...) floor in _compute_retry_after — the floor is
  a lower bound, not a poll interval; clients should apply jitter.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
Co-authored-by: rayhpeng <rayhpeng@gmail.com>
2026-07-14 07:37:59 +08:00
DanielWalnut
4e209827f3
feat(agent): Add subagent total delegation cap (#4115)
* fix subagent total delegation cap

* fix embedded subagent run cap context

* fix subagent cap config consistency

* fix resumed subagent run cap boundary

* fix legacy resume subagent boundary

* address subagent cap review feedback

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-13 19:26:07 +08:00
黄云龙
f85ee590e1
docs(backend): add IM channel connections and GitHub agents architecture diagrams (#4112)
Adds two focused architecture docs and references from backend/AGENTS.md:
- backend/docs/IM_CHANNEL_CONNECTIONS.md — sequence + graph diagrams for user-owned
  IM channel connections: bind-code flow (/connect/<start), single-active-owner
  transfer, provider message routing, owner-scoped file storage.
- backend/docs/GITHUB_AGENTS.md — sequence + graph diagrams for GitHub event-driven
  agents: webhook fan-out, preferred_thread_id = UUID5, GH token lifecycle, race recovery.

Co-authored-by: Claude <noreply@anthropic.com>
2026-07-12 11:42:55 +08:00
Daoyuan Li
5edc7a889e
fix(security): neutralize prompt-injection tags in web_capture results (#4099)
The remote-content allowlist in ToolResultSanitizationMiddleware
(`_REMOTE_CONTENT_TOOL_NAMES`) covered web_fetch / web_search /
image_search but not web_capture, which was added later. The Browserless
web_capture tool embeds the target site's `X-Response-Status` reason
phrase — free-form text controlled by whatever server is being captured
(RFC 7230 §3.1.2) — into its result message via `_target_status_warning`.
A malicious page could therefore forge a `<system-reminder>` block (or a
`--- END USER INPUT ---` boundary marker) through web_capture that would
be escaped for web_fetch, letting attacker-influenced remote content reach
the model as authoritative framework context.

Add "web_capture" to the allowlist so its result is structurally
neutralized for parity with the other remote-content tools. This extends
the same defense introduced in #4002 to the one built-in remote-content
tool it did not yet cover.

Add regression tests that build the web_capture result the way
community/browserless/tools.py does (real `_target_status_warning` +
`BrowserlessScreenshotResult`) and assert the forged tags/boundary markers
are escaped, while a benign status warning is preserved unchanged.
2026-07-12 11:24:24 +08:00
Ryker_Feng
41658c5ff4
feat(skills): add skill review quality gate (#4037)
* feat(skills): add skill review quality gate

* fix(skills): skip review eval fixtures in CI

* fix(skills): ignore review eval fixtures in bundled scans

* fix(skill-review): harden review gate boundaries

* fix(skills): address skill review gate feedback
2026-07-11 15:58:07 +08:00
Huixin615
6389fc03fd
fix: ensure visible response after tool runs (#4033)
* fix: ensure visible response after tool runs

* fix: clean up terminal response recovery state

* fix: bound terminal recovery state
2026-07-11 15:53:14 +08:00
Nan Gao
aafd5077b2
feat(subagents): show effective model and token usage on task cards (#4049)
* feat(subagents): show runtime metadata on task cards

* fix(subagents): stop task-card render loop and dedupe model fetches

Address code review on the runtime-metadata cards:

- P1 render loop: the terminal ToolMessage is re-parsed on every
  MessageList render and always carries modelName/usage, so the
  presence-based setTasks condition fired a fresh state object each
  render -> "Maximum update depth exceeded". computeNextSubtask now
  returns a value-compared `changed` flag and a pure subtaskNotification()
  routes terminal transitions through the deferred after-render path
  while skipping no-op re-parses.

- Per-card useModels refetch: add staleTime: Infinity to the ["models"]
  query so every subtask card shares one /api/models fetch instead of
  refetching on each mount.

* make format

* refactor(subagents): dedupe token-usage validators + tidy event narrowing

Address PR review follow-ups:

- DRY: extract one shared token-usage validator per side. Backend
  status_contract.normalize_token_usage() now backs both the terminal
  ToolMessage metadata and the subagent.step/.end run events
  (step_events.py), and frontend messages/usage.normalizeTokenUsage()
  backs both the live task_running event (lifecycle.ts) and the terminal
  ToolMessage metadata (subtask-result.ts). Prevents the input/output/
  total_tokens validation from drifting across the four former copies.

- Nit: onCustomEvent narrows event.type once instead of re-checking the
  object shape per branch; the redundant task_started early-return
  (already validated by taskEventToSubtaskUpdate) is dropped.
2026-07-11 15:41:57 +08:00
Vanzeren
c2002d9fac
feat(memory): add memory tool sets (#4023)
* feat: add memory-as-tool mode alongside existing middleware mode

- Add memory.mode config field (middleware|tool, default middleware)
- Add search_memory_facts() for case-insensitive fact lookup
- Add 4 memory tools: memory_search, memory_add, memory_update, memory_delete
- Wire mode gating in factory.py and lead_agent/agent.py
- 256 memory tests passing, zero regressions

* fix: harden tool-mode memory scoping and docs

* fix: address memory tool mode review feedback

* fix(memory): address tool mode review feedback

* fix: update config_version to 22 in values.yaml
2026-07-11 15:28:16 +08:00
Nan Gao
bbb3deb231
fix(subagents): classify LLM error fallbacks as failed (#4042)
* fix(subagents): classify LLM error fallbacks as failed (#4041)

* fix(subagents): address #4042 review on LLM error fallback

- clarify _extract_llm_error_fallback docstring: tail-only scan is safe
  because subagents append their own terminal message, so the last
  AIMessage is never a stale parent-history marker (cross-ref worker.py)
- compute final_result and pop stop_reason only on the COMPLETED branch
  so the guard stop-reason pop no longer fires on the discarded FAILED path
- note the error_detail/"LLM request failed" fallbacks are defensive;
  the middleware always populates a non-empty content
- add regression test locking the stale parent-history marker invariant

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-11 09:25:15 +08:00
Nan Gao
8fbf101de3
fix(subagents): inject durable context before compaction (#4040)
* fix(subagents): inject durable context before compaction

* fix(subagents): coalesce system messages after durable-context injection

Address #4040 review:
- append SystemMessageCoalescingMiddleware innermost on the subagent chain
  so the SystemMessage(authority) DurableContextMiddleware injects is merged
  into one leading system_message; otherwise the durable fix trades #4039's
  assistant-first 400 for a duplicate-system 400 on strict backends
- add a two-system regression guard driving the real builder output through
  a strict model; assert exactly one leading SystemMessage
- assert single-leading-system in the compaction integration test too
- update the middleware count/last-element assertion (coalescer is now
  unconditionally last, removing the summarization-dependence ambiguity)
- compare _skills_root against posixpath.normpath(container_path)
- document the coalescer on the subagent chain in backend/AGENTS.md
2026-07-11 08:29:42 +08:00
Daoyuan Li
d300e3597f
Correct memory-config documentation to match the code (#3995)
Two memory-config docs disagreed with the actual defaults/behavior in
`config/memory_config.py` and `agents/memory/storage.py`:

- backend/AGENTS.md: `staleness_age_days` was documented as "default: 180;
  range: 1-3650" but the field is `default=90, ge=30, le=365`;
  `staleness_max_removals_per_cycle` was documented as "default: 5; range:
  1-20" but the field is `default=10, ge=1, le=50`.

- config.example.yaml: the `storage_path` comment said "Path relative to
  backend directory", but a relative `storage_path` resolves against the data
  `base_dir` (`get_paths().base_dir / p`), not the backend working directory,
  and an absolute path is what opts out of per-user isolation (matching the
  field's own description in `memory_config.py`).

Doc-only change; no behavior change.
2026-07-10 14:32:51 +08:00
Aari
04a85b307a
fix(sandbox): scrub abbreviated *_PASS vars and Postgres PGPASSFILE from skill env (#4026)
* fix(sandbox): scrub abbreviated *_PASS vars and Postgres PGPASSFILE from skill env

env_policy blocks the full PASSWORD/PASSWD spellings but not the ubiquitous
abbreviated _PASS form (DB_PASS, SMTP_PASS, MYSQL_PASS, ...), whose value is the
plaintext password itself, so every skill subprocess inherited it. Postgres's
file-based credential sources PGPASSFILE (.pgpass locator) and PGSERVICEFILE
(pg_service.conf, may carry a password) were likewise missed -- the psql analog
of the MYSQL_PWD/REDISCLI_AUTH no-flag sources #4018 added.

Collapse *PASSWORD*/*PASSWD* into a single *PASS* pattern (which subsumes both,
covers the abbreviated family, and catches PGPASSFILE) and add PGSERVICEFILE to
the exact-name denylist. *PASS* deliberately does not touch PWD/OLDPWD, which
carry no PASS substring. Capability-handle vars (KUBECONFIG, DOCKER_CONFIG,
GIT_ASKPASS, ...) are a broader, non-value-bearing class and are left out of
this fix.

test_secret_like_names_are_blocked already pins the contract; the new names are
added to its parametrize list (red before, green after) and the benign-names
test guards against over-scrubbing PWD/OLDPWD.

* test(sandbox): pin the *_ASKPASS over-scrub that *PASS* introduces

*PASS* also matches the credential-helper vars GIT_ASKPASS, SSH_ASKPASS and
SUDO_ASKPASS, which main inherits. Each names a program whose purpose is to hand
the caller a credential, so inheriting the pointer is the same leak class as
inheriting the value -- a skill can simply invoke it. Scrubbing them is intended;
pin all three in test_secret_like_names_are_blocked (red on main) so the
behaviour is a decision rather than a side effect of the pattern's shape.

test_benign_names_are_allowed could not have caught this: none of its 14 names
carries a PASS substring, so it passes identically before and after the
broadening and asserts nothing about it. Record that in its docstring -- the
absence of a benign PASS-bearing name is a decision, and PWD/OLDPWD are the
boundary the list does pin.

Also note the incidental COMPASS_*/BYPASS_* over-scrub in the module comment
(over-scrubbing is this module's fail-safe direction; required-secrets is the
escape hatch), and list PGPASSFILE alongside PGSERVICEFILE in AGENTS.md.
2026-07-10 14:05:47 +08:00
Tianye Song
9097642658
feat(memory): add memory consolidation to synthesize fragmented facts (#3996)
* feat(memory): add memory consolidation to synthesize fragmented facts

When a fact category accumulates many individual entries, the LLM
reviews them during the normal memory-update call (same invocation,
no extra API cost) and decides whether groups of related facts can be
synthesized into a single richer fact. This completes the memory
lifecycle: extraction → guaranteed injection → staleness review →
consolidation.

- Select fragmented categories by min-facts threshold, surface the most
  fragmented groups first; prompt-layer caps aligned with apply-layer
  guardrails so the LLM never sees groups it cannot act on
- Cap consolidated confidence at source maximum to prevent inflation;
  reject results below fact_confidence_threshold
- Double-consume protection prevents a fact from being merged into
  multiple consolidation targets
- Feature-gated at both prompt and apply time with per-cycle safety caps
- Add 26 tests covering candidate selection, normalization, apply
  guardrails, and prompt integration

* fix(memory): address consolidation correctness issues from PR review

Six fixes based on maintainer review of #3996:

1. Deduplicate sourceIds in normalization — ["f1","f1"] previously
   bypassed the ≥2-distinct-sources check; dict.fromkeys collapses it
   to ["f1"] which is correctly rejected.

2. Run consolidation after max_facts trim — previously, sources were
   deleted then the merged fact could be evicted by the trim, leaving
   no record of either. Moving consolidation last ensures source facts
   exist in the post-trim index before removal.

3. Fix count= attribute in consolidation prompt — advertised the full
   category size but listed only max_sources IDs; now uses
   min(len(group), max_sources) to match what the LLM can act on.

4. Exempt staleness_protected_categories from consolidation candidates
   — mirrors the existing staleness-review contract so correction facts
   are never surfaced for merging.

5. Strip and default category in consolidation normalization — "  " or
   " preference " are now normalised, matching _normalize_memory_update_fact.

6. Propagate sourceError from source facts into consolidated fact —
   correction context is no longer silently lost on merge.

* fix(memory): add apply-time guardrails and tests for consolidation

P1: mirror the staleness-pass defense-in-depth pattern — build
allowed_source_ids from _select_consolidation_candidates at apply time
so a protected-category or below-threshold fact proposed by the LLM is
rejected regardless of model behavior.

P2a: test that LLM-returned confidence is capped at max source confidence
and that a capped result below fact_confidence_threshold is rejected.

P2b: test that factsToConsolidate with consolidation_enabled=False is a
no-op at apply time (35 tests, all pass).

* fix(memory): address three correctness issues from second review round

1. Default consolidation_enabled=False — consolidation is lossy (source
   content is permanently replaced, only consolidatedFrom IDs preserved);
   new lossy features default to off. config.example.yaml updated to match.

2. Unify confidence coercion between prompt and apply — _build_consolidation_section
   now calls _coerce_source_confidence(fact) instead of an inline 0.0-default
   coercion, so a null-confidence fact renders with 0.50 in the LLM prompt and
   is capped at 0.50 at apply time (same value, same function).

3. Preserve staleness clock on merge — consolidated fact now carries the
   newest source's createdAt (not now) so aged information does not gain a
   fresh staleness-review window just by being consolidated; consolidatedAt
   is added as an explicit audit field.

Three regression tests added (default=false, null-confidence consistency,
createdAt policy); all guardrail tests now set consolidation_enabled=True
explicitly so they test the guardrail, not the feature flag. 38 tests pass.

* fix(memory): harden createdAt comparison and confidence handling

1. createdAt max via _parse_fact_datetime — replaces string max() which
   crashes on non-string createdAt (numeric unix timestamps) and sorts
   Z/+00:00 mixed formats incorrectly. Mirrors how staleness computes age.

2. Remove dead min(..., 1.0) — _coerce_source_confidence already clamps
   each source confidence to [0, 1], so max(source_confidences) ≤ 1.0
   by contract; the outer min could never bind.

3. Clamp raw_llm_conf to [0, 1] before applying the source cap — out-of-
   range values like 1.5 are safe today (pinned by the cap) but defensively
   clamped first so the invariant holds even if the cap is ever loosened.

4. Doc: expand the apply-time guardrails comment to call out the protected-
   category exclusion via allowed_source_ids — this is the central safety
   property ("explicit user feedback is never silently merged away").

5. Test: add test_confidence_fallback_to_max_source_when_llm_omits_field
   covering the else-branch (LLM omits confidence → uses max_source_conf).

6. Fix lint: reorder imports in test file (stdlib before third-party).

39 tests, all pass.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-10 11:31:08 +08:00
hataa
266883b3dd
fix(subagents): inherit summarization middleware and harden step capture (#3875 Phase 3) (#4009)
Phase 3 of #3875 — subagents previously inherited none of the lead's
context-compaction, so a deep-research subagent (max_turns up to 150)
could accumulate >1M cumulative input before max_turns/timeout/token_budget
engaged, even after Phase 2's budget capped the pathological tail.

- Gate the subagent runtime chain on the SAME ``app_config.summarization.enabled``
  switch the lead reads (per maintainer guidance in #3875), via the shared
  ``create_summarization_middleware`` factory. One config covers both chains;
  no separate ``subagents.summarization`` field. No-op when summarization is
  off (factory returns None).
- ``skip_memory_flush=True`` on the subagent path: the factory otherwise
  attaches ``memory_flush_hook`` (when memory.enabled), which flushes
  pre-compaction messages into durable memory keyed by thread_id. Subagents
  share the parent's thread_id, so without skipping the hook a subagent's
  internal turns would pollute the PARENT thread's durable memory
  (#3875 Phase 3 review point).
- Harden ``capture_new_step_messages`` to tolerate history contraction:
  summarization rewrites the messages channel via
  ``RemoveMessage(id=REMOVE_ALL_MESSAGES)``, shrinking len(messages) below
  the step-capture cursor. Without a reset, every step appended after the
  compaction point was dropped until length overtook the stale cursor (#3845
  interaction, maintainer validation point (a)). Cursor now resets to the
  new tail; id/content dedup prevents re-emitting pre-compaction steps.
- Couple the DEFAULT token-budget ceiling to ``summarization.enabled``
  (#3875 Phase 3 review point): 1M when compaction is on, 2M when off
  (preserves Phase 2's deliberate headroom for summarization-off
  deep-research runs that can exceed 1M). A user-set budget (global or
  per-agent) always wins regardless of the switch. Flagged tunable.

The summarization middleware does not implement ``consume_stop_reason``, so
the Phase 2 guard-cap stop-reason channel is unaffected.

Refs: https://github.com/bytedance/deer-flow/issues/3875
2026-07-10 11:17:35 +08:00
Zhengcy05
b06372b812
feat(backend): queue rapid same-thread messages and preserve topic card previews (#3988)
* feat(backend): queue rapid same-thread messages and preserve topic card previews

* fix: checkstyle

* refactor(channels): make feishu serialization policy-driven and fix queue cleanup
2026-07-10 11:01:39 +08:00
Ryker_Feng
ebc09ce130
feat(mcp): auto-promote deferred MCP tools from routing hints (#4019)
* feat(mcp): auto-promote deferred MCP tools from routing hints

When tool_search.enabled=true defers MCP tool schemas, PR1 routing hints
still require the model to spend a tool_search discovery round trip before
it can call the tool the routing metadata already points at. This adds a
McpRoutingMiddleware that matches the latest user message against PR1
routing keywords and promotes the matching deferred schemas before the
model call, removing that round trip.

Design (soft routing, opt-in, additive):
- Matches only the latest real HumanMessage (shared is_real_user_message
  helper, reused by SkillActivationMiddleware so the two cannot drift);
  case-insensitive substring match, no tokenizer dependency.
- Ordering: priority desc, then tool name asc; capped by the new global
  tool_search.auto_promote_top_k (default 3, clamped 1..5). Does not add or
  consume a per-tool auto_promote_top_k (PR1 schema unchanged); a per-tool
  value is ignored with a DEBUG note.
- Returns a plain {"promoted": ...} state update (not a Command) and relies
  on ThreadState.merge_promoted for union/dedupe, so auto-promote and a
  model-triggered tool_search converge on the same catalog hash.
- Installed before DeferredToolFilterMiddleware on every deferred-tool path
  (lead agent, subagent, embedded client, webhook via shared builders);
  a construction-time assert rejects the reversed order. catalog_hash is
  None / no routing index is a complete no-op, so bootstrap and ACP skip it.
- Privacy: never executes tools, never promotes policy-filtered tools, adds
  no routing keywords or matched tool names to trace metadata or INFO/WARN
  logs.

No behavior change when tool_search.enabled=false.

Tests: index construction, matching semantics, middleware state updates,
same-cycle deferred-filter interaction, lead/subagent/embedded-client
builder wiring + order invariant, config clamping, config.example.yaml
parseability, and privacy assertions.

* refactor(mcp): address auto-promote review nits

- executor: access app_config.tool_search.auto_promote_top_k directly to match
  the lead-agent and embedded-client paths (drop the over-defensive getattr that
  masked missing config); update the subagent test mock to carry tool_search.
- tool_search / mcp_routing_middleware: cross-reference the duplicated routing
  priority/keyword normalization between the builder and the middleware's
  defensive _normalize_index so they cannot silently drift.
- MCP_SERVER.md: document that auto-promote keyword matching is a case-insensitive
  substring test (not word-boundary), advising distinctive keywords.
2026-07-10 07:54:36 +08:00
Huixin615
66c0c641bf
fix(gateway): live-tail malformed redis reconnect ids (#4012)
* fix(gateway): live-tail malformed redis reconnect ids

* test: avoid redis live-tail heartbeat gaps

* fix: handle terminal malformed redis reconnect ids
2026-07-10 07:44:45 +08:00
Huixin615
c30c8ef759
fix: recover from empty tool call names (#4008)
* fix: recover from empty tool call names

* test: harden empty tool call recovery

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-09 16:40:10 +08:00
Ryker_Feng
5ba25b06ec
feat(mcp): add MCP routing hints (#4004)
* feat: add MCP routing hints

* test: isolate mcp routing prompt config

* fix: address mcp routing review feedback
2026-07-09 16:26:31 +08:00
Yi Deng
b36d7194d9
fix(security): neutralize prompt-injection tags in remote tool results (#4002)
* fix(security): neutralize prompt-injection tags in remote tool results

User input is already neutralized for framework/injection tags, but tool
results are not. Remote content fetched by web_fetch/web_search is equally
untrusted and can carry a forged <system-reminder> block that reaches the
model verbatim as authoritative context.

Extract a shared neutralize_untrusted_tags() primitive from
InputSanitizationMiddleware and apply it to remote-content tool results
(web_fetch/web_search/image_search) via a new ToolResultSanitizationMiddleware.
Local tool output (bash/read_file) is left untouched so legitimate code/file
content is never mangled.

* test: update subagent middleware count for tool-result sanitizer

The new ToolResultSanitizationMiddleware adds one entry to the shared runtime
chain (11 -> 12). Update the subagent count assertion, use a lazy import for
neutralize_untrusted_tags so the module loads even when tests stub the
input-sanitization module, and document the new middleware in AGENTS.md.

* fix(security): address review — sanitize bare str list items; document MCP scope

- Neutralize bare str elements inside a ToolMessage content list (previously
  only {type:text} dict blocks were rewritten), matching the str-in-list shape
  ToolOutputBudgetMiddleware._message_text already anticipates.
- Document the name-based allowlist limitation: MCP remote-content tools
  registered under arbitrary names (e.g. fetch_url) are not covered; a name
  heuristic is avoided to prevent mangling local tool output, with metadata
  tagging tracked as a follow-up. Add a regression test pinning this boundary.
2026-07-09 14:45:25 +08:00
hataa
c9fb9768d4
fix(subagents): unify guardrail caps on additive stop_reason + add token_budget (#3875 Phase 2) (#3980)
Phase 2 of #3875. Two guardrail axes can end a subagent run early — the turn
budget (GraphRecursionError) and the token budget (TokenBudgetMiddleware) —
and both now surface *why* through one additive `subagent_stop_reason` field
instead of a status enum.

This completes and course-corrects Phase 1 (#3949), which shipped the
turn-budget cap as a `max_turns_reached` status enum. The agreed Phase 2
design replaces that enum with an optional `stop_reason` field
(token_capped | turn_capped | loop_capped): a new enum value would break v1
consumers, while an additive field is ignored by older frontends and ledger
readers. `max_turns_reached` and SubagentStatus.MAX_TURNS_REACHED are removed.

- subagents.token_budget config (default enabled, 2,000,000 tokens, warn 0.7)
  with per-agent override; TokenBudgetMiddleware is now attached in
  build_subagent_runtime_middlewares so the cost-ceiling backstop engages for
  every subagent. The hard-stop does not raise — it strips tool_calls and
  lets the run finish with a final answer, recording the cap on a per-run
  consume_stop_reason() accessor.
- executor.py: on normal completion it reads consume_stop_reason() and stamps
  completed + token_capped when the budget fired; on GraphRecursionError it
  recovers the last AIMessage partial (completed + turn_capped) or, if nothing
  usable survived, failed + turn_capped. SubagentResult gains stop_reason.
- status_contract.py / contracts/subagent_status_contract.json (v2) /
  frontend subtask-result.ts: additive subagent_stop_reason field, pinned by
  test_status_values_match_contract / test_stop_reason_values_match_contract.
- task_tool.py + delegation_ledger.py: drop the max_turns_reached paths; the
  ledger captures stop_reason and renders model-facing "capped" guidance so
  the lead reuses a capped completion knowingly.

The 2,000,000-token default is deliberately loose (tighten to taste) — it
would have roughly halved the reported 4.4M burn while leaving legitimate
deep-research runs (max_turns=150) room. Subagent summarization is a follow-up.
2026-07-08 22:26:06 +08:00
Ryker_Feng
01dc067997
feat: add composer input polishing (#3986)
* feat: add composer input polishing

* Revert "Merge branch 'main' into feat/input-polish"

This reverts commit 5b6ceccf0db3092bc62fde3b05e7816829601756, reversing
changes made to 45fbc57fef5fa5fd878cf0176c37f3e3bc7ebef6.

* Merge main into feat/input-polish

* style(frontend): format input helper polish guard

* fix(input-polish): address composer polish review findings

Frontend
- Add a cancel affordance to the in-flight polish status pill that calls
  abortInputPolishRequest(), so a slow/hung provider no longer hard-locks the
  composer for up to stream_chunk_timeout with a page reload (and draft loss)
  as the only escape.
- Reset promptHistoryIndexRef/promptHistoryDraftRef when a rewrite is applied
  (and on undo), so a stale history-browse index can no longer let the next
  ArrowDown silently overwrite the polished draft.
- Disable polishing while an open human-input card is present, matching the
  frontend/AGENTS.md rule that composer entry points defer to the card so
  card-reply metadata is preserved.
- canPolishInput now reuses parseGoalCommand/parseCompactCommand instead of a
  third hardcoded reserved-command regex, and drops the phantom /help entry
  (no /help parser exists in the composer), so future builtins only need to be
  taught to the existing parsers.

Backend
- Extract the non-graph one-shot LLM path (build model + inject Langfuse
  metadata + system/user invoke + text extract) into
  deerflow.utils.oneshot_llm.run_oneshot_llm, shared by the input-polish and
  suggestions routers so tracing-metadata and invocation shape cannot drift
  between the two copies.
- strip_think_blocks gains truncate_unclosed (default True, preserving the
  suggestions/goal JSON-prep behavior); input polish passes False so a draft
  that legitimately contains a literal <think> substring is no longer
  truncated into a partial rewrite or a spurious 503.
- Validate the empty-check and max_chars boundary against the same stripped
  view of the draft that is sent to the model, so the user-facing length
  boundary and the model input can no longer disagree.

Tests / docs
- Backend: literal-<think> preservation, whitespace-only rejection, and
  normalized-length/model-input agreement cases; suggestions tests repoint the
  create_chat_model patch to the shared helper module.
- Frontend: helper unit tests updated for the /help/reserved-command change; a
  new Playwright case covers cancelling an in-flight polish request.
- backend/AGENTS.md documents the shared one-shot helper and the polish
  normalization/think-tag behavior.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-08 17:10:27 +08:00
Vanzeren
e3137b13cf
fix(provisioner): gate legacy skills mount by user visibility (#3985)
* fix(provisioner): gate legacy skills mount by user visibility

* fix(test): aio sandbox provider

* fix: use shared legacy skill visibility helper for sandbox mounts
2026-07-08 14:41:16 +08:00
AochenShen99
658c39ccf7
feat(skills): Add native SkillScan phase 1 for skills (#3033)
* Add phase 1 skill static scanning

* Rework SkillScan phase 1 as native scanner

* refactor(skillscan): align phase 1 with trimmed RFC contract

- SecurityFinding: 7 fields (rule_id, severity, file, line, message,
  remediation, evidence); category/analyzer derive from the rule_id
  prefix, confidence/column/fingerprint/metadata removed
- scan_archive_preflight()/scan_skill_dir() are pure functions: no
  ScanContext, no policy schema; CRITICAL-blocks is a code constant and
  skill_scan.enabled is applied by enforce_static_scan()/callers
- secret-* evidence is redacted before findings leave the scanner
- de-dup keys on (rule_id, file, line) so repeated occurrences keep
  distinct locations for agent self-correction
- cloud-metadata detection consolidated into network-cloud-metadata
- nested zip members get a one-level stdlib magic-byte peek; an
  executable member escalates package-nested-archive to CRITICAL
- install metadata sidecar removed (Phase 7 decides if it is needed)
- rule specs moved next to their analyzers; skillscan/rules/ removed
- tests updated + new anchors: redaction, dedup lines, nested-zip
  escalation, single cloud-metadata rule, bundled-skill zero-CRITICAL

* fix(skillscan): tighten reverse-shell/secret/archive scan rules from review

Address PR #3033 review feedback on the native SkillScan analyzers:

- Reverse-shell false positives: split shell detection by signal strength
  (/dev/tcp/, nc -e stay CRITICAL; bash -i, mkfifo -> new HIGH
  shell-reverse-shell-heuristic, warn->LLM). The Python check is now
  AST-anchored on real socket.socket/os.dup2/subprocess call sites instead
  of raw-text substring matching, so prose/docstrings no longer hard-block.
- Secret evidence: _redact_secret_evidence returns [redacted] with no secret
  bytes (was value[:6], which leaked 2 real token bytes past the prefix).
- Archive DoS: cap outer archive member count (_MAX_ARCHIVE_MEMBERS=4096);
  scan_archive_preflight early-aborts with a package-too-many-members CRITICAL
  finding (routes through the existing blocked->400 fail-closed path).
- shell-destructive-command: broaden the rm -rf matcher to sensitive system
  roots (/home, /usr, /*, --no-preserve-root /) while leaving safe subpaths
  unflagged.
- Dead code: collapse _decode_text_for_analysis to a single decode path and
  drop the unused _TEXT_SUFFIXES set and _has_text_shebang helper.
- local_skill_storage: document why the host_path branch keeps app_config
  possibly-None (lazy kill-switch resolution; avoids eager get_app_config in
  config-free environments such as CI).

Tests: new negative/positive coverage in test_skillscan_native.py. Full
backend suite 6616 passed, 26 skipped.
2026-07-07 21:44:28 +08:00
Ryker_Feng
26d7a5970d
feat: add manual context compaction (#3969)
* feat: add manual context compaction

* fix: harden manual context compaction
2026-07-07 19:55:33 +08:00
AnoobFeng
8fbcdf821b
Fix/card tool message bug (#3976)
* fix(runtime): add final reconciliation for missed tool messages

* fix(gateway): persist hidden human input card responses

Persist allowlisted hidden human_input_response messages in RunJournal so
Human Input Cards can recover answered state from run_events after checkpoint
compaction. Keep generic internal hidden messages filtered and add regression
coverage for ask_clarification responses.
2026-07-07 14:39:04 +08:00
AnoobFeng
47b0f604f4
feat(frontend):enhance the ask_clarification interaction with visualized card (#3956)
* feat(frontend): add structured human input cards for ask_clarification

Implement a reusable Human Input Card flow for ask_clarification while keeping
the existing text fallback for older clients and IM channels.

Backend:
- Add structured ToolMessage.artifact.human_input payloads for clarification requests.
- Preserve ToolMessage.content as the readable Markdown/text fallback.
- Normalize clarification options from native lists, JSON strings, plain strings,
  mixed scalar values, None, and missing options.
- Derive input_mode as choice_with_other when options exist, otherwise free_text.
- Keep disable_clarification non-interactive behavior as a plain ToolMessage with
  no human_input artifact.
- Cover artifact persistence and Gateway message metadata preservation in tests.

Frontend:
- Add human input protocol types, runtime guards, extractors, response builders,
  and thread-state helpers.
- Add reusable HumanInputCard with option buttons, free-text input, pending,
  read-only, disabled, and answered states.
- Render structured clarification cards from artifact.human_input, with Markdown
  fallback for malformed or legacy tool messages.
- Preserve line breaks in structured question/context/option text.
- Hide submitted clarification bridge messages from the chat UI via
  additional_kwargs.hide_from_ui.
- Send structured human_input_response metadata through the fourth sendMessage
  options argument, preserving run context in the third argument.
- Wire submissions for normal chats, custom agent chats, agent bootstrap chats,
  and sidecar chats.
- Derive answered state from raw thread.messages so hidden replies still update
  the original card.
- Clear pending state when the hidden reply arrives, dispatch is dropped, or a
  later async stream failure appears on thread.error.

* perf(frontend): optimize HumanInputCard UI interactions

- Support Enter key to submit text input (Shift+Enter for newline)
- Render question and context fields as Markdown instead of plain text
- Replace deprecated FormEventHandler type with structural typing

* test(frontend): add unit test cover optimize HumanInputCard UI interactions

* feat(frontend): disabled chatbox when has new human-input-card

* fix(style): lint error fix

* fix: sanitize hidden human input replies

- Preserve IME composition safety for human input card Enter submits
- Treat hidden human input responses as genuine user messages for sanitization
- Keep hidden card replies in memory filtering while excluding malformed/internal hidden messages
- Add regression coverage for card IME handling and hidden reply sanitization

* fix: tighten human input response validation

- Reject empty hidden human input response values
- Remove invalid list ARIA role from human input card options
- Add backend coverage for empty response payloads

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-06 22:34:41 +08:00
He Wang
fd41fdb065
feat(middleware): add structured tool result meta and tool-progress state machine (#3601)
* feat(middleware): add structured tool result meta and tool-progress state machine

feat:
- Add tool_result_meta.py: ToolResultMeta dataclass (status/error_type/retryable/
  recoverable_by_model/recommended_next_action/source) + normalize_tool_result and
  stamp_exception_meta utilities; classifies every ToolMessage regardless of path
- Add ToolProgressMiddleware: per-(thread_id, tool_name) state machine ACTIVE →
  WARNED (hint injected as HumanMessage) → BLOCKED (call short-circuited); Jaccard
  near-duplicate detection for repeated successful results; auth/config/internal
  errors bypass WARNED and go directly to BLOCKED; LRU-bounded thread state store
- Add ToolProgressConfig: all thresholds configurable (stagnation_threshold,
  warn_escalation_count, jaccard_similarity_threshold, exempt_tools, etc.);
  disabled by default (enabled: false)
- Wire ToolProgressMiddleware as outer wrapper around ToolErrorHandlingMiddleware
  in _build_runtime_middlewares so it receives results already carrying
  deerflow_tool_meta

fix:
- ToolErrorHandlingMiddleware now calls stamp_exception_meta on exception path and
  normalize_tool_result on success path so every ToolMessage carries deerflow_tool_meta

test:
- Add test_tool_result_meta.py: 26 cases covering all classification paths,
  stamp_exception_meta, and normalize_tool_result Command passthrough
- Add test_tool_progress_middleware.py: 27 cases including full async paths,
  Jaccard duplicate detection, LRU eviction, hint injection, and malformed meta
  passthrough
- Extend test_tool_error_handling_middleware.py: middleware ordering invariant and
  meta stamping on exception

docs:
- Add tool_progress section to config.example.yaml with all fields and descriptions
- Update CLAUDE.md middleware chain documentation (entries 8-9)

Co-Authored-By: Claude Sonnet 4 <noreply@anthropic.com>

* fix(middleware): recoverable errors stay WARNED; fix auth keyword shadowing

fix:
- WARNED is terminal for recoverable_by_model=True errors (no_results, not_found,
  permission); hint re-injected on each problem call instead of escalating to
  BLOCKED, so the model can retry with different parameters (e.g. fresh query,
  new URL) without being hard-blocked by a prior stagnation count.
  Non-recoverable (rate_limited, transient) still escalate WARNED → BLOCKED
  after warn_escalation_count more problems; auth/config/internal remain
  immediately BLOCKED.
- Remove bare "api key" keyword from auth classification rule so "no api key
  configured" correctly classifies as config (not auth), producing the accurate
  block-reason text for the model.

docs:
- CLAUDE.md: document all three ToolProgressMiddleware transition paths
- config.example.yaml: update inline state-machine comment to match new paths

test:
- test_recoverable_errors_stay_warned_indefinitely: WARNED never escalates for
  recoverable errors regardless of how many problem calls accumulate
- test_recoverable_error_re_injects_hint_past_escalation: hints continue past
  the escalation zone for recoverable errors
- test_no_api_key_is_config_not_auth: regression guard for keyword shadowing fix

Co-Authored-By: Claude Sonnet 4 <noreply@anthropic.com>

* fix(tool_result_meta): add JSON error extraction and fix source classification

fix:
- Fix non-standard error path: source was "exception" but should be "tool_return"
- Add _extract_json_error_text to isolate JSON error fields from noisy JSON bodies
  (e.g. Brave Search {"error": "...", "query": "..."} — query keywords no longer
  pollute error classification)
- Add success-path JSON extraction to catch tools that return HTTP 200 with a JSON
  error body (status="success" but {"error": "API key not configured"})
- Add _SEMANTIC_ZERO_ERROR_STRINGS frozenset to suppress false positives from tools
  that use {"error": "none"} / {"error": "null"} / {"error": "ok"} as success signals
- Document that stamp_exception_meta always overwrites existing TOOL_META_KEY
  (exception-derived classification is authoritative over tool return-time stamps)

test:
- Add parametrized regression tests for all semantic-zero error strings
- Add tests for non-standard error path source field
- Add tests for JSON error extraction (nonstd, success-path, numeric, falsy values)
- Correct test comment for test_no_api_key_is_config_not_auth

Co-Authored-By: Claude Sonnet 4 <noreply@anthropic.com>

* fix(tool_progress_middleware): fix 6 bugs, add terminal guard and structured logging

fix:
- H1: fix exempt_tools empty-set silently ignored — use `is not None` instead of
  truthiness check so ToolProgressConfig(exempt_tools=set()) correctly disables all
  exemptions
- Fix _get_block_reason creating phantom LRU entries via _get_state (write path);
  now uses dict.get + explicit move_to_end on read path only
- Fix _pending memory leak: LRU eviction of _phase_states now synchronously removes
  all (evicted_thread, *) keys from _pending
- Fix _assess_and_transition missing terminal guard for blocked state — a recoverable
  error result could silently demote blocked → warned in concurrent-race scenarios;
  early return preserves terminal semantics
- Fix recent_word_sets window: stored [-5:] but is_near_duplicate only compared [-3:];
  align to [-3:] and change type list→tuple (prevents accidental in-place mutation
  across dataclasses.replace shallow copies)
- Fix _format_hint missing "success" key and "continue" action: Jaccard near-duplicate
  results produced the generic fallback instead of a specific actionable message

feat:
- Add structured state-transition logging (ACTIVE/WARNED/BLOCKED transitions, blocked
  intercepts, hint injection debug log)

test:
- Add regression tests for all 6 bug fixes (H1, phantom LRU, pending leak, terminal
  guard, window alignment, format_hint near-dup)
- Add Jaccard near-threshold boundary test (7/9 vs 8/9 Jaccard)
- Add production min_words=10 skip test for short content
- Add exempt_tools empty-set and None round-trip tests
- Add _augment_request deduplication test
- Add before_agent current-run preservation test
- Add structured logging tests (WARNED/BLOCKED/ACTIVE/intercepted/debug)

Co-Authored-By: Claude Sonnet 4 <noreply@anthropic.com>

* chore(config): remove unused backward-compat fields from ToolProgressConfig

Remove max_calls_per_intent and window_size fields that were marked
"Retained for backward compatibility; not used by the current state machine"
when the state machine was introduced.  Pydantic v2 ignores unknown fields
by default, so existing config.yaml files with these keys remain valid.

Co-Authored-By: Claude Sonnet 4 <noreply@anthropic.com>

* fix(tool_progress): address PR review and multi-agent review findings

fix:
- Remove <80-char length gate for partial_success; only _PARTIAL_MARKERS now
- Add word-boundary regex for numeric HTTP codes (401/403/404/500) to avoid
  false positives like "500ms" or "4010 rows" triggering hard-block
- Add "task" to default exempt_tools (delegation primitive, not a search tool)
- Remove move_to_end() from _get_block_reason read path; blocked threads were
  permanently warm in LRU, starving active threads of eviction slots
- Add _reset_blocked_states in before_agent: scope BLOCKED and WARNED states
  to a single run; clear recent_word_sets so stale Jaccard windows don't cause
  false near-duplicate detections in the next run
- Compute word_set() lazily (only for success results); cap content at 8192
  chars to bound memory and CPU cost on large tool results
- Remove unused retryable field from ToolResultMeta (no consumer existed)
- Add isinstance-based ordering guard and warning log for missing meta
- Fix JSON-without-error-key fallback: use _UNKNOWN_ERROR instead of
  classifying incidental field values (e.g. {"user_id": 401} → auth → stop)
- Fix _extract_json_error_text: use json.dumps for dict/list error fields
  instead of str() which produced Python repr matching config rules spuriously
- Add "no results found"/"no content found"/"no images found" to _PARTIAL_MARKERS
  so success responses with empty results trigger stagnation detection
- Fix immediate-block path to increment consecutive_problems (was left at 0)
- Fix _queue_assessment: skip phantom _pending entries for evicted threads
- Bump config_version 13→16 (upstream added 14/15; tool_progress is additive)

test:
- Update test_short_content_is_partial → test_short_terse_success_is_not_partial
- Add parametrized test_numeric_keyword_word_boundary (8 positive + negative cases)
- Add test_before_agent_resets_blocked_states_for_new_run (strengthened assertions)
- Add test_before_agent_resets_warned_states_for_new_run
- Add test_missing_meta_on_non_exempt_tool_emits_warning
- Add test_middleware_ordering_guard_raises_when_progress_is_inner
- Add test_auth_error_immediately_blocked asserts consecutive_problems == 1
- Add tests for JSON-without-error-key, dict error field, no-results partial_success

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

* fix(tool_progress): address second PR review — perf, architecture doc, concurrency note

fix:
- Extract content.lower() once before _PARTIAL_MARKERS check in normalize_tool_message;
  previously computed up to 7× per call inside the generator (once per marker)

docs:
- Add division-of-labor paragraph to ToolProgressMiddleware module docstring explaining
  coexistence with LoopDetectionMiddleware: result-quality guard (per-tool BLOCK) vs
  call-pattern guard (whole-turn hard-stop); no shared state, no double-stop risk
- Add threading.Lock comment explaining why asyncio.Lock is not used (short critical
  sections, must also protect sync wrap_tool_call path from subagent executor threads)
- Update backend/CLAUDE.md entry 8 with division-of-labor summary; fix entry 9
  (remove stale retryable field reference, add missing recoverable_by_model/source)

test:
- Add test_tool_progress_and_loop_detection_coexist_without_interfering: drives both
  middlewares to WARNED state simultaneously, verifies independent state, independent
  hint queues, and no cross-contamination; uses snapshot copy for final assertion

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

* fix(tool_progress): reset all tool states at run boundary; fix semantic-zero test validity

fix:
- _reset_run_states (formerly _reset_blocked_states) drops the phase filter and
  resets all tracked (thread, tool) pairs unconditionally at before_agent; ACTIVE
  tools with sub-threshold consecutive_problems or cached recent_word_sets no longer
  bleed into the next run, preventing spurious WARNED transitions on clean R2 calls
- test_normalize_json_semantic_zero_error_string_not_treated_as_error: replace
  {error_value!r} f-string (produces invalid JSON with single quotes) with
  json.dumps so _extract_json_error_text actually parses the payload and the
  _SEMANTIC_ZERO_ERROR_STRINGS guard is exercised, not bypassed at json.loads

test:
- add test_before_agent_resets_active_state_consecutive_problems_and_word_sets to
  lock the ACTIVE-phase run-boundary reset: drives tool to active/cp=1/ws≠() in R1,
  asserts both fields are zero/empty after before_agent fires for R2

* docs(tool_progress): document intentional per-run reset vs LoopDetection thread-scoped retention

Addresses reviewer observation in PR #3601 that _reset_run_states diverges
from LoopDetectionMiddleware's cross-run scoping policy without explanation.

Expands the _reset_run_states docstring to record the intentional design
choice: ToolProgressMiddleware resets per-run because result-quality errors
(rate_limited, transient) are time-bound and may resolve between turns —
retaining stale counters would risk false-positive BLOCKED calls.
LoopDetectionMiddleware retains history across runs because call-pattern
loops are time-invariant. The divergence is by design, not oversight.

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

* fix(middleware): restore ReadBeforeWriteMiddleware as outermost write gate

A merge conflict resolution had accidentally placed ReadBeforeWriteMiddleware
after ToolErrorHandlingMiddleware (inner), reversing the original intent from
b81334cc where it was the outermost write gate before ToolErrorHandling.

fix:
- Restore ReadBeforeWriteMiddleware to outer position: ReadBeforeWrite →
  ToolProgress → ToolErrorHandling. Blocked writes now return immediately
  without consuming a ToolProgress slot.
- Add normalize_tool_result call on blocked ToolMessages so they carry
  deerflow_tool_meta (recoverable_by_model=True) even though they bypass
  ToolErrorHandlingMiddleware.

test:
- Add test_blocked_write_has_deerflow_tool_meta (sync + async) to lock the
  normalize_tool_result behavior on blocked writes.
- Fix chain order assertions in TestChainWiring and
  test_build_lead_runtime_middlewares_chain_order_matches_agents_md.

docs:
- Renumber AGENTS.md items: 10→ReadBeforeWrite, 11→ToolProgress,
  12→ToolErrorHandling; update descriptions to reflect outermost-gate design.
- Fix stale cross-reference: LoopDetectionMiddleware (item 23) → (item 25).

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

---------

Co-authored-by: Claude Sonnet 4 <noreply@anthropic.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-06 20:57:41 +08:00
Tianye Song
28f2b07b79
feat(memory): add staleness review to prune silently-outdated facts (#3860)
* feat(memory): add staleness review to prune silently-outdated facts

Facts created long ago may become outdated without any future conversation
explicitly contradicting them ("Silent Staleness").  This adds a staleness
review mechanism that surfaces aged facts to the LLM during the normal
memory-update call so it can semantically judge whether each is still valid.

- New MemoryConfig fields: staleness_review_enabled, staleness_age_days,
  staleness_min_candidates, staleness_max_removals_per_cycle,
  staleness_protected_categories
- New STALENESS_REVIEW_PROMPT section injected into MEMORY_UPDATE_PROMPT
  when enough stale candidates exist
- New staleFactsToRemove output field in the LLM response schema
- Safety cap limits max removals per cycle, keeping lowest-confidence
  entries when the LLM returns more than the cap
- Correction facts (category=correction) are protected by default
- Observability via structured logging of each removal with reason
- 32 unit tests covering parsing, selection, triggers, formatting,
  normalization, safety cap, and integration

* fix(memory): add deterministic guardrail for staleness removals

_apply_updates previously removed any fact id the LLM returned in
staleFactsToRemove without verifying it was in the actual staleness
candidate set.  An LLM slip could silently delete protected-category
facts (e.g. correction) or fresh facts, defeating the stated guarantee.

Now intersect stale_ids_to_remove with _select_stale_candidates before
the safety cap, making the protection independent of both model behavior
and the staleness_review_enabled flag.

Add three regression tests:
- test_protected_category_fact_refused_at_apply
- test_non_aged_fact_refused_at_apply
- test_guardrail_runs_when_staleness_review_disabled

* docs(memory): sync AGENTS.md staleness config + simplify datetime parsing

Address reviewer feedback from PR #3860:
- Add staleness workflow step and 5 new config fields to backend/AGENTS.md
- Simplify _parse_fact_datetime: drop manual Z→+00:00 replace, Python 3.12+ fromisoformat handles Z natively

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-06 15:09:56 +08:00
Huixin615
eb5eb9c574
fix(docker): keep config mounts stable across host saves (#3954)
* fix(docker): keep mutable config mounts stable

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
2026-07-06 08:00:49 +08:00
hataa
0664ea2243
fix(subagents): surface turn-budget cap as MAX_TURNS_REACHED with partial result (#3875 Phase 2) (#3949)
* fix(subagents): surface turn-budget cap as MAX_TURNS_REACHED with partial result (#3875)

Phase 2 of #3875. When a subagent exhausts its turn budget
(recursion_limit == max_turns), LangGraph raises
GraphRecursionError from agent.astream. The generic
except Exception in _aexecute misclassified it as FAILED and
discarded the partial work already streamed into final_state, so the
lead could not tell 'broken subagent' from 'out of budget' and got an
empty failure.

Catch GraphRecursionError specifically (before the generic handler)
and set a distinct SubagentStatus.MAX_TURNS_REACHED terminal status,
recovering the partial result from the last streamed chunk via a shared
_extract_final_result helper (refactored out of the normal-completion
path so both paths render content identically).

Extend the cross-language status contract so the new value travels on
additional_kwargs.subagent_status: a capped run is result-bearing, so
make_subagent_additional_kwargs / read_subagent_result_metadata
carry subagent_result_brief + subagent_result_sha256 (the
recovered work, like completed) AND the cap notice on subagent_error
-- the one status that carries both. task_tool.py returns it via the
shared _task_result_command; the delegation ledger prefers the
partial result_brief and renders model-facing guidance (reuse / retry
tighter / raise max_turns). Frontend collapses max_turns_reached to the
failed pill with the cap notice on error.

No agent-loop, runner, or persistence behavior touched; default
max_turns is unchanged.

* refactor(subagents): consolidate content-stringify onto shared helper

Address review feedback on #3949 (willem-bd, copilot-pull-request-reviewer):

- executor.py: drop the private `_stringify_message_content` — a third
  near-duplicate of `utils/messages.py::message_content_to_text`.
  `_extract_final_result` now delegates to that canonical helper; the
  "No response generated" sentinel is pushed down to the consumer (the
  shared helper returns "" for no-text, matching every other call site).
- task_tool.py: align the live `task_failed` event's error string with
  the canonical "Reached max_turns=N" used by the logger, the structured
  `error=`, and the executor (was "Reached max turns (N)").

Behavior for real AIMessage content is unchanged; only atypical edge inputs
(consecutive bare-string list items; empty content) now match the canonical
helper that every other call site already uses.

`extract_response_text` is intentionally left as-is: it filters by OpenAI
content-block `type`, a different shape with many callers and its own tests.

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

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-07-06 07:55:32 +08:00
Ryker_Feng
186c6ea463
feat: add branching support for assistant turns (#3950)
* feat: add assistant turn branching

* fix(threads): skip workspace clone when branching from historical turn

Workspace files are not checkpointed, so cloning them onto a branch
rooted at an older assistant turn leaked files created in a later
timeline. Restrict the best-effort workspace copy to branches taken from
the latest turn; historical-turn branches now report
workspace_clone_mode="skipped_historical_turn" and keep only the
restored message history.

* style(frontend): fix prettier formatting in e2e mock-api

Collapse the branch-title normalization chain onto a single line to
satisfy the frontend lint (prettier --check) CI gate.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-06 07:40:41 +08:00
Vanzeren
67c8ade375
feat(sandbox): warm pool for boxlite (#3951)
* feat: add boxlite SDK as harness dependency

* test: add fake SimpleBox fixtures for BoxLite warm pool tests

* feat: add deterministic sandbox_id and warm pool fields to BoxliteProvider

* feat: pass deterministic sandbox_id to SimpleBox name

* feat: warm pool lifecycle — park on release, reclaim on acquire

- release(): parks VMs in _warm_pool with timestamp instead of closing
- _reclaim_warm_pool(): health checks warm boxes via echo ok
- acquire(): tries warm pool reclaim before creating new boxes
- Deterministic sandbox_id ensures thread isolation

* feat(boxlite): idle reaper, replica enforcement, warm-pool shutdown/reset

- Task 6: idle reaper daemon thread destroys expired warm-pool boxes
- Task 7: replica enforcement evicts oldest warm-pool box when at capacity
- Task 8: shutdown() stops idle checker first, destroys all boxes (active+warm);
  reset() clears warm pool

Tests: 17 passed (4 new: idle reaper, replica enforcement, shutdown, reset)

* fix(boxlite): harden warm pool lifecycle races

* docs(boxlite): document warm pool configuration

* fix(sandbox): log warning when evicting oldest warm box is failed

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* fix(boxlite): stop provider lifecycle on reset

* fix(boxlite): make runtime an optional dependency

* test(boxlite): remove unused warm pool lookup

* docs(boxlite): clarify optional runtime support

* refactor: extract shared WarmPoolLifecycleMixin for sandbox warm-pool lifecycle

Introduce deerflow.community.warm_pool_lifecycle.WarmPoolLifecycleMixin
owning idle-checker loop, warm-pool expiry, oldest-warm eviction,
replica counting, and soft-cap logging. Move AioSandboxProvider and
BoxliteProvider onto the mixin; keep AIO active-idle cleanup local and
delegate only warm-pool expiry to the shared helper.

BoxliteProvider also gains:
- Prefixed box names (deer-flow-boxlite-*) for startup orphan reconciliation
- _reconcile_orphans() adopting surviving boxes from a prior process
- Pinned timeout forwarding: command timeout now bounds both BoxLite
  SDK exec(timeout=...) and the loop bridge .result(timeout)
- reset() reworked as lightweight registry clear (boxes -> warm pool,
  no close, no idle-reaper stop, no loop close) so reset_sandbox_provider()
  config switches are safe; shutdown() remains the teardown path

Backward-compatible: AIO DEFAULT_IDLE_TIMEOUT/DEFAULT_REPLICAS/
IDLE_CHECK_INTERVAL stay importable; Boxlite IDLE_CHECK_INTERVAL
stays monkeypatchable.

---------

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
2026-07-06 07:21:12 +08:00
Ryker_Feng
00161811bd
feat: add workspace change review for agent runs (#3945)
* feat: add workspace change review

* chore: format workspace change files

* fix: optimize workspace change summaries

* style: refine workspace change badge scale

* fix: restore workspace change user context import

* fix(frontend): gate workspace change badge to assistant messages

Only pass run_id to assistant MessageListItems so the workspace-change
badge can never render under a user's prompt, which carries the same
run_id. Assert single badge render in the E2E flow.

* fix(workspace-changes): address review feedback on diff parsing and badge

- Restrict unified-diff header detection to "+++ "/"--- " (trailing space)
  in both backend _count_diff_lines and frontend getWorkspaceChangeLineClass
  so content lines beginning with +++/--- are counted/styled correctly
- Gate WorkspaceChangeBadge to ai messages so tool messages folded into an
  assistant group don't render a duplicate badge
- Add regression tests for both diff-classification fixes
- Apply prettier formatting to workspace-changes files flagged by CI

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-05 15:38:01 +08:00