Skip to content

Add agent observability with Monocle - #1

Draft
imohammedansari wants to merge 113 commits into
mainfrom
monocle-instrumentation
Draft

Add agent observability with Monocle#1
imohammedansari wants to merge 113 commits into
mainfrom
monocle-instrumentation

Conversation

@imohammedansari

@imohammedansari imohammedansari commented Jul 7, 2026

Copy link
Copy Markdown
Owner

Summary

Adds Monocle observability to the agent. Monocle is an OpenTelemetry-based tracer for LLM applications. With it enabled, each run is recorded as a structured trace: the agent and graph invocations, tool calls, LLM inferences, token usage, and timings. The change is additive and does not alter application logic.

What this adds

Instrumentation is one setup call plus one dependency:

  • backend/pyproject.toml: adds monocle_apptrace.
  • backend/packages/harness/deerflow/agents/__init__.py: calls setup_monocle_telemetry(workflow_name="deer-flow", monocle_exporters_list="file") at startup.

That call auto-instruments the frameworks already in use (LangGraph and the LLM clients), so there is no per-tool or per-call wiring to maintain. Traces are written to .monocle/ by default.

What you get

Each run produces a trace of all the agents and tools that were triggered: which agents ran, which tools were called, and what LLM inferences happened. In effect, it's the path the agent took to answer a given question. This is useful for developers building the agent, since they can see how it actually behaved on a run. The same traces are also a good basis for a behavioral test suite, an integration test that asserts on that behavior, and I've opened a companion PR that shows how that works: behavioral test suite. You can open the trace files directly, view them in the Monocle VS Code extension, or send them to Okahu for analysis across many runs.


Example trace (Okahu VS Code Extension)

DeerFlow's agent driving the model, with its tools (web_search, web_fetch, task, write_file) captured as trace spans.

image

Vanzeren and others added 5 commits July 8, 2026 14:41
…nce#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
* feat: add composer input polishing

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

This reverts commit 5b6cecc, reversing
changes made to 45fbc57.

* 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>
…ance#3981)

* feat(frontend): render slash-skill activations as inline chips

Show an explicit `/skill` activation as a compact inline chip in both the
composer and the chat transcript instead of raw slash text.

- Composer: selecting a skill suggestion stores it as a removable chip
  aligned inline with the textarea; the leading `/skill ` prefix is
  reattached only at submit time, so the backend activation protocol is
  unchanged. Backspace on an empty input or the chip's close button clears
  it; history navigation is disabled while a chip is active.
- Transcript: human messages that begin with `/skill` render the skill as a
  read-only chip followed by the task text.
- Add a shared `core/skills/slash.ts` (`parseSlashSkillReference` +
  `resolveSlashSkillDisplay`) mirroring the backend `slash.py` gate, so the
  transcript only shows a chip when the skill actually exists and is enabled.
  This removes a duplicated regex/reserved-name list and keeps display
  semantics consistent with backend activation.

Add unit tests for the shared slash parser and extend the chat e2e to assert
the composer still submits `/skill <task>` after showing a chip.

* chore(frontend): format chat e2e test

* refactor(skills): address slash-skill chip review feedback

Follow-up to the inline slash-skill chip PR, resolving three second-order
review findings:

- Drive the reserved-command set and skill-name grammar from a shared
  contracts/slash_skill_contract.json instead of a hand-copied
  "keep in sync" pair. slash.ts and slash.py now reference the fixture, and
  contract tests on both sides fail CI if either drifts.
- Extract a shared SlashSkillChip so the composer and transcript chips stay
  in lockstep, and normalize the off-scale /8 and /12 opacity steps to the
  standard /10 and /20 tokens.
- Split HumanMessageText into a pure parse gate plus a slash-only subtree
  that owns the useSkills() lookup, so a skill-enabled toggle no longer
  re-renders every plain-text human turn.

Verified: frontend eslint + tsc clean, pnpm test 572 pass (incl. new
slash-contract test); backend slash contract + slash-skills tests 31 pass.

* style(tests): sort slash skill contract imports

* fix(composer): inline the slash-skill text so the chip aligns with input

Address the "composer body layout change" review on bytedance#3981 by rendering the
active skill as an inline chip in the same text flow as the prompt, rather
than a separate flex row that drifted the box model across states.

- Render the chip + prompt inside one leading-6 wrapper and edit the prompt
  through a `contentEditable` span, so the chip sits inline with the first
  line and long/multi-line input wraps naturally back to the container edge.
- Align the chip with `align-top`: its h-6 (24px) height matches the text
  line height, so chip and first-line centers coincide exactly (measured
  delta 0), fixing the chip being raised above the baseline.
- Restore the placeholder in chip mode via a `data-empty` CSS `::before`,
  which also gives the empty editable span width so it is no longer treated
  as hidden.
- Widen the IME helper to `HTMLElement` and route the span's keydown/paste
  through the shared skill-suggestion, prompt-history, backspace-to-clear,
  and IME-composition handlers so contentEditable behaves like the textarea.
- Extend chat.spec.ts to drive the inline skill editor instead of the
  textarea after a chip is shown.

* style(frontend): fix composer class order formatting

* fix(composer): break long unbroken input inside the slash-skill row

The inline slash-skill editor wrapped with `break-words`
(overflow-wrap: break-word), which only moves an over-long token to the
next line before breaking it. A long unbroken string therefore started
on the line below the chip, and when the string contained a break
opportunity such as a hyphen the browser wrapped there and pushed the
remaining run to the next line, leaving a wide gap on the right.

Switch to `break-all` (word-break: break-all) so the text fills each
line from the chip and packs tightly regardless of hyphens or CJK.
…ken_budget (bytedance#3875 Phase 2) (bytedance#3980)

Phase 2 of bytedance#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 (bytedance#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.
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.
@imohammedansari
imohammedansari force-pushed the monocle-instrumentation branch from e63b8b5 to ba5caeb Compare July 8, 2026 22:57
@imohammedansari imohammedansari changed the title Add Monocle observability (WIP) Add Monocle tracing Jul 8, 2026
DengY11 and others added 9 commits July 9, 2026 14:45
bytedance#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.
…ance#3987)

* feat(helm): add production-ready Helm chart for Kubernetes deployment

Adds deploy/helm/deer-flow, a native-Kubernetes translation of the
production docker-compose stack, plus CI to publish its images and chart.

* ci(release): gate releases on version-source consistency

Add a reusable verify-versions workflow invoked by both chart.yaml and
container.yaml on v* tags. It runs scripts/verify_versions.sh against the
tag and fails the release — skipping all image and chart publishing — when
Chart.yaml (version + appVersion), backend/pyproject.toml, or
frontend/package.json don't all match the tag.

Add scripts/verify_versions.sh (the check, also runnable locally) and
scripts/bump_version.sh (bumps all four sources in lockstep, then
self-verifies). Document the release flow in RELEASING.md and link it from
AGENTS.md.

* fix(deploy): address Helm chart review feedback (bytedance#3987)

Three review items from willem-bd:

1. nginx IPv6 listen strip never matched. The sed pattern required a `;`
   immediately after `2026`, but the rendered config emits
   `listen [::]:2026 default_server;` (space + `default_server` before the
   `;`), so the line was never deleted and nginx crash-looped on pods
   without IPv6 (`socket() :::2026 failed (97: Address family not
   supported)`). Drop the trailing `;` from the pattern so it matches.
   Same latent bug fixed in docker-compose-dev.yaml.

2. Passwords were spliced into DSNs verbatim, so a password containing
   URL-special chars (@ : / # ? % [ ] space) produced a malformed DSN and
   a confusing parse error. Add a `deer-flow.urlEscape` helper
   (replace-based: Sprig lacks urlqueryescape, and regexReplaceAllLiteral
   treats the replacement as a regex template so `[`/`]`/`?` break it) and
   apply it to the password in the postgres and redis DSNs. The raw
   `postgres-password` / `redis-password` keys stay unencoded - they back
   POSTGRES_PASSWORD / REDIS_PASSWORD, not a URL segment.

3. NODE_HOST defaulted to "gateway", which can never route: the gateway
   Service is ClusterIP:8001 and knows nothing of a sandbox NodePort, so a
   user who skips the caveat gets unreachable sandboxes with no error at
   install time. Default NODE_HOST to the provisioner pod's node IP via
   the downward API (status.hostIP) - a NodePort is exposed on every node,
   so <node-IP>:<NodePort> routes from the gateway on most clusters.
   `provisioner.nodeHost` remains an override for CNIs/policies that block
   pod->node-IP traffic. Updated NOTES.txt, values.yaml, and the chart
   README. (bytedance#3929 remains the long-term fix - ClusterIP + cluster-DNS URL
   removes NODE_HOST and the NodePort exposure entirely.)

Validated with helm lint, helm template (incl. a special-char password
rendering the encoded DSNs), and a sed pattern-match check.

* fix(deploy): address round-2 Helm chart review feedback (bytedance#3987)

Three "Medium" items from willem-bd:

1. No helm lint / helm template gate before publish. A template regression
   ships as an immutable OCI artifact (GHCR won't overwrite --version), so
   gate packaging on `helm lint` + `helm template --include-crds` in
   chart.yaml before `helm package`. (ct lint / helm-unittest deferred.)

2. Action pinning inconsistent + PR body overstates it. SHA-pin
   actions/checkout (v6.0.3, df4cb1c0) and actions/attest-build-provenance
   (v2.4.0, e8998f94) across the publishing workflows (chart.yaml,
   container.yaml, verify-versions.yml), matching the existing docker/*
   SHA-pin pattern. Resolves the checkout @v4/@v6 mismatch and makes the
   "SHA-pinned actions" claim accurate. Other pre-existing workflows left
   untouched (out of scope for this PR).

3. Provisioner RBAC broader than needed. Dropped the unused update/patch
   verbs and the pods/exec + events rules from the provisioner Role -
   audited against docker/provisioner/app.py, which only calls
   get/create/delete on pods and get/list/create/delete on services. Fixed
   NOTES.txt to accurately describe the grant instead of understating it as
   "create Pods and Services". The remaining scope concern - verbs apply to
   all Pods in the namespace, not just sandbox Pods - is still deferred
   (RBAC can't scope by label; needs a dedicated namespace or admission
   control), now noted in NOTES.txt and README.

Validated with helm lint + helm template (narrowed Role renders with
exactly get/list/watch/create/delete).

* feat(helm): enable sandbox+web tools out of the box

The chart's default config loaded zero agent tools (config.tools empty ->
"Total tools loaded: 0"), so a fresh install gave an agent that could do
nothing useful. Add tool_groups + tools to the default config block:

- web: web_search (ddg), web_fetch (jina), image_search - no API key
- file:read: ls, read_file, glob, grep
- file:write: write_file, str_replace
- bash

The file/bash tools run inside the AIO sandbox the chart already
configures; the web tools need outbound internet from the gateway pod
(swap backends or drop entries for air-gapped clusters - see
config.example.yaml).

Also bump config_version 15 -> 19 to match config.example.yaml (the chart
had drifted behind). NOTES.txt and the README example updated to match.

* ci(helm): add chart validation + config_version drift check on PR

Extend the chart workflow with a PR-triggered validate-chart job that runs
helm lint, helm template --include-crds, and a config_version drift check:
it parses config_version from both config.example.yaml and the chart's
values.yaml and fails the build (with a ::error:: naming the files to bump)
if the chart is behind the example. This catches the kind of drift this
PR is fixing - the chart sat at v15 while the example moved to v19 - before
it can merge again.

verify-versions and publish-chart stay tag-only; publish-chart now
needs: [verify-versions, validate-chart]. validate-chart runs on both
PRs and tag pushes: the tag arm is required because a job that `needs`
a skipped job is itself skipped under the default success() check, so
validate-chart must actually run on tag pushes or publish-chart would
never fire.

* Bump config version to 20
* feat: add MCP routing hints

* test: isolate mcp routing prompt config

* fix: address mcp routing review feedback
* fix: recover from empty tool call names

* test: harden empty tool call recovery

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
…edance#4015)

The tag-publish workflow (container.yaml) built backend/Dockerfile with no
build-args, so UV_EXTRAS was empty and the published *-backend image shipped
without the Postgres driver (only --extra redis). Multi-replica deployments
(K8s/Helm) that need shared Postgres persistence instead of file-based SQLite
could not use the release image without rebuilding it.

Pass UV_EXTRAS=postgres so the release image includes
deerflow-harness[postgres]. Additive only: single-replica sqlite/redis setups
keep working; the Postgres driver is added, mirroring how redis is already
always baked in.
…ce#4013)

Bumps [langsmith](https://github.com/langchain-ai/langsmith-sdk) from 0.8.0 to 0.8.18.
- [Release notes](https://github.com/langchain-ai/langsmith-sdk/releases)
- [Commits](langchain-ai/langsmith-sdk@v0.8.0...v0.8.18)

---
updated-dependencies:
- dependency-name: langsmith
  dependency-version: 0.8.18
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
…ce#4001)

* bench: add provider-agnostic sandbox benchmark with BoxLite warm pool results

- scripts/bench_sandbox_provider.py: CLI for measuring acquire/run/release
  across providers, scenarios, workloads, and concurrency levels
- scripts/summarize_bench.py: JSONL aggregation with p50/p95/p99 tables
- bench_results.jsonl: 110 turns across 7 scenarios on real BoxLite 0.9.7

Key findings:
  cold acquire:  ~860ms
  warm reclaim:   ~14ms  (60x speedup)
  release:         ~0ms
  warm_hit_rate:  95%   (warm_same_thread)

* perf(boxlite): skip health check for recently-released warm pool boxes

Boxes released within health_check_skip_seconds (default 5.0s)
are promoted directly without the ~14ms echo-ok round-trip.
A VM alive seconds ago is overwhelmingly likely to still be alive.

Add sandbox.health_check_skip_seconds config option.
Set to 0 to always health-check (old behaviour).

Benchmark (warm_same_thread, noop, 20 iters):
  acquire p50: 14.9ms → 0.0ms
  total p50:   29.9ms → 14.0ms

* chore: move benchmark scripts into backend/scripts/benchmark/

* fix: address BoxLite benchmark review findings

* fix(boxlite): only skip warm reclaim checks for released boxes

* fix(benchmark): keep BoxLite shim workaround off the event loop

* fix(boxlite): invalidate dead boxes from command path

* test(boxlite): cover skip window and invalidation edge cases

* fix(boxlite): treat sandbox-has-been-closed as terminal in _exec

* fix(boxlite): harden warm-pool reclaim and benchmark accounting

* fix(boxlite): validate warm-pool reclaims by default

* fix(config): expose boxlite health-check skip setting

* fix(boxlite): tighten failure classification and benchmark workaround

* Update config_version to 21 in values.yaml

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
…bytedance#4014)

Bumps [pydantic-settings](https://github.com/pydantic/pydantic-settings) from 2.14.0 to 2.14.2.
- [Release notes](https://github.com/pydantic/pydantic-settings/releases)
- [Commits](pydantic/pydantic-settings@v2.14.0...v2.14.2)

---
updated-dependencies:
- dependency-name: pydantic-settings
  dependency-version: 2.14.2
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
…ounts (bytedance#4016)

* feat(provisioner): add ClusterIP mode for sandbox services

* feat(provisioner): support optional skills pvc subpath
@imohammedansari imohammedansari changed the title Add Monocle tracing Add agent observability with Monocle Jul 9, 2026
imohammedansari and others added 13 commits July 9, 2026 15:29
…ill env (bytedance#4018)

* fix(sandbox): scrub MYSQL_PWD and REDISCLI_AUTH from the inherited skill env

env_policy blocks the MySQL and Redis connection strings (MYSQL_URL, REDIS_URL)
because they embed a password, but not the password variables the same clients
read directly: mysql/libmysqlclient takes MYSQL_PWD and redis-cli takes
REDISCLI_AUTH with no further configuration. Both names carry no
KEY/SECRET/TOKEN/PASSWORD/PASSWD substring, so they were inherited by every
skill subprocess -- the leak surface this module exists to close (bytedance#3861).

They need exact entries rather than a pattern: *PWD* would also strip PWD and
OLDPWD. REDIS_AUTH is included as the common non-canonical variant.

* Apply suggestions from code review

- Distinguish REDIS_AUTH (defensive, non-canonical) from MYSQL_PWD and
  REDISCLI_AUTH (documented no-flag credential sources) in the comment.
- Pin that request-scoped injection still overrides the host value for the
  newly blocked names, keeping required-secrets a working escape hatch.
* fix(gateway): live-tail malformed redis reconnect ids

* test: avoid redis live-tail heartbeat gaps

* fix: handle terminal malformed redis reconnect ids
…nce#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.
…ects max_chars (bytedance#4017)

* fix(agent): snap tool-output tail forward so fallback truncation respects max_chars

_snap_to_line_boundary() moves an offset backwards to the preceding newline.
That is correct for the head's end offset, but _build_fallback() also applied it
to the tail's start offset, where moving backwards lengthens the tail. On output
whose last newline sits in the second half (log lines followed by one long
unbroken line: minified JSON, base64 artifacts), the returned string exceeded
max_chars by up to 17x, defeating the guard that exists to stop a single large
tool result from blowing the model context.

Add _snap_start_to_line_boundary(), the forward-snapping mirror, and use it for
the tail offset. The existing head_end guard becomes redundant because a forward
snap can only move the tail start away from the head.

test_result_never_exceeds_max_chars already asserted this invariant but passed
newline-free content, so the snapping branch was never exercised.

* test(agent): pin the forward-snap direction of the fallback tail

The bound test only asserts that the result fits max_chars. Its content has
no newline inside the tail's snap window, so _snap_start_to_line_boundary
returns pos unchanged and the test stays green even with the snap removed.

Place a newline in the window so the snap has to fire: the tail must begin
after it, which the pre-fix backward snap does not do.
…rd previews (bytedance#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
`image_search` set both `image_url` and `thumbnail_url` to the DDGS result's
`thumbnail` field, so the tool never returned the full-resolution image even
though its docstring/usage_hint promise reference-quality images (and a result
with no `thumbnail` returned an empty `image_url`). DDGS `.images()` exposes the
full-res source under the separate `image` key — read that for `image_url`,
matching the serper/brave providers which keep image vs thumbnail distinct.

Adds a regression test.
…ure (bytedance#3875 Phase 3) (bytedance#4009)

Phase 3 of bytedance#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 bytedance#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
  (bytedance#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 (bytedance#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``
  (bytedance#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: bytedance#3875
…bytedance#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 bytedance#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>
…rom skill env (bytedance#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 bytedance#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.
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.
The apply-time staleness guardrail built ``candidate_ids`` with a direct
``f["id"]`` access over ``_select_stale_candidates`` output:

    candidate_ids = {f["id"] for f in _select_stale_candidates(current_memory, config)}

Every other fact access in ``updater.py`` uses ``f.get("id")``; this was the
lone direct-subscript outlier. An aged, non-protected fact that lacks an
``id`` key — common in legacy / hand-edited / migrated ``memory.json`` — is a
valid staleness candidate, so it reached ``f["id"]`` and raised
``KeyError: 'id'``, aborting the entire background memory-update cycle for
that user. The guardrail runs unconditionally (independent of the
``staleness_review_enabled`` flag), so any id-less aged fact triggers it as
soon as the LLM returns a non-empty ``staleFactsToRemove``.

Skip id-less candidates when building the intersection set. They can never
be targeted by the id-based removal set anyway, so behaviour is otherwise
unchanged.

Adds a regression test with an aged, id-less fact that raises KeyError
before the fix and applies cleanly after.
nankingjing and others added 26 commits July 12, 2026 23:00
…dance#4076)

search_memory_facts sorted matches by fact.get("confidence", 0), which
returns None for a fact whose confidence key is explicitly null, crashing
the sort comparison. Use _coerce_source_confidence so null/malformed
confidence values are normalized and clamped before ranking.
…is empty (bytedance#4079)

str_replace returned "OK" whenever the target file was empty, silently
reporting success even when the model asked to replace a non-empty string
that could not possibly be present. Only short-circuit to "OK" when old_str
is also empty; otherwise return the standard not-found error.
…tedance#4059)

LoopDetectionMiddleware._get_run_id used a truthiness check that
collapsed a present-but-None run_id to the same "default" key as a
totally absent one. SubagentExecutor sets context["run_id"] =
self.run_id unconditionally, so run_id is genuinely None for an
embedded/TUI-dispatched subagent, and later reads the stop reason back
with that same raw attribute via consume_stop_reason(self.run_id). The
write (keyed "default") and the read (keyed None) disagreed, so a
genuine loop-detection hard-stop's loop_capped reason was silently
dropped instead of reaching the lead.

Align _get_run_id with TokenBudgetMiddleware's key-presence-based
version, which does not have this bug: return the context value as-is
when the key is present (None included), and fall back to a
per-runtime-unique key only when the key is absent.
… key (bytedance#4075)

The parse gate required all of {user, history, newFacts, factsToRemove} to
be present before accepting the model's JSON. A well-formed update that
simply has no facts to remove (the common case) omits the empty
factsToRemove key and was silently rejected. Drop factsToRemove from the
required set so those updates parse and apply.
…ory updates (bytedance#4074)

* fix(memory): coerce null confidence when ranking stale facts

_build_staleness_section and the per-cycle removal cap in _apply_updates
used fact.get("confidence", 0.0/0), which only defaults when the key is
absent. A fact whose confidence is explicitly null (or otherwise malformed)
returned None, breaking the numeric sort/format. Use
_coerce_source_confidence, which normalizes null/malformed values and clamps
to [0, 1], so null-confidence facts no longer block staleness handling.

* ci: retrigger cancelled CI workflow

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
Automated dependency upgrade by OrbisAI Security
…tions (bytedance#4088)

* fix(goal): prevent continuation_count regression from racing continuations

* fix(goal): prevent continuation_count regression from racing continuations
…edance#4087)

* fix(skillscan): detect os.environ access via from-import pattern

* fix(skillscan): detect os.environ access via from-import pattern
… boundary (bytedance#4110)

replace_virtual_paths_in_command matches the virtual root with no
segment-boundary lookahead:

    re.compile(rf"{re.escape(VIRTUAL_PATH_PREFIX)}(/[^\s\"';&|<>()]*)?")

The trailing group needs a "/" to consume anything, so when the character after
/mnt/user-data is "-", ".", "_", a digit or a letter, the group matches empty
and the bare root still matches. The substitution then rewrites it to the
thread's host user-data directory and the rest of the sibling name rides along,
so a command naming a prefix sibling of the mount root is pointed at a real host
directory outside the mount contract:

    cat /mnt/user-data-backup/secret.txt  ->  cat <host>/user-data-backup/secret.txt

which reads the host file. This is the same defect as bytedance#4035 (reverse patterns)
and bytedance#4053 (masking patterns), mirrored into the virtual->host direction; it is
the last unguarded member of that family.

The boundary class mirrors LocalSandbox._content_pattern's rather than
_command_pattern's: a virtual root can legitimately be followed by ":"
(PATH-style concatenation) or ",", which the shell-oriented class rejects, so
narrowing to it would stop translating paths that translate today. "$" covers a
command ending exactly at the root.
…ows (bytedance#4058)

* fix(sandbox): use os.sep in reverse-resolve containment check on Windows

Path.resolve() always renders with the native separator (backslash on
Windows), but _reverse_resolve_path's containment check hardcoded a
"/" suffix when testing whether a resolved path is nested under a
mapping's local root. Only the exact-root case (no separator needed)
ever matched; every nested path fell through to the "no mapping
found" branch and returned the raw host path -- leaking the real
username and full directory tree into list_dir/glob/grep results and
bash output masking instead of the virtual /mnt/user-data/... path.

_is_read_only_path already does the equivalent check correctly via
os.sep, so this aligns _reverse_resolve_path with that pattern: the
containment check now compares with os.sep, and the extracted
relative portion is normalized to forward slashes before being
spliced into the (always POSIX-style) container path.

Also fixes a same-file cosmetic bug in list_dir's virtual
sub-directory overlay: it compared a bare child name (e.g.
"workspace") against a set of full container paths, so the
already-listed guard never matched and a mount whose subdirectory the
underlying scan already found (the common case for
/mnt/user-data/workspace, uploads, outputs) was appended a second
time.

Continues the same separator-bug class already fixed in this file by
bytedance#3869 (forward-direction command resolution) and bytedance#4035 (reverse
regex-boundary matching); neither touched this containment check.

* test(sandbox): add host-OS-independent regression test for the os.sep containment fix

_reverse_resolve_path's os.sep containment check (and the paired
lstrip(os.sep).replace(os.sep, "/") extraction) has no test that would
fail if reverted: backend CI runs only on ubuntu-latest, where
os.sep == "/" makes the pre-fix hardcoded "/" and the current os.sep
form observationally identical, so a plain POSIX-path test can't
discriminate between them.

Add a test that forces the Windows code path independent of host OS by
monkeypatching os.sep to "\" and stubbing both the module's Path name
and the sandbox's cached _resolved_local_paths to return
backslash-joined strings, mirroring what real WindowsPath.resolve()
produces -- without touching the filesystem or requiring an actual
Windows host. Verified this fails with the raw host path leaking
through when the os.sep fix is reverted to the hardcoded "/" form, and
passes with the fix in place.
…ed (bytedance#4056)

The GraphRecursionError except-block in SubagentExecutor._aexecute derives
usable_partial from the last AIMessage's raw non-empty text, without
checking _extract_llm_error_fallback (bytedance#4042) first. A handled provider
failure (LLMErrorHandlingMiddleware's deerflow_error_fallback marker)
always carries non-empty user-facing text, so when it lands on the same
turn that trips max_turns, it is indistinguishable from genuine partial
output and gets misclassified as a completed task instead of the failed
provider error it is.

Consult _extract_llm_error_fallback in this except-block too, same as the
normal-completion path above it, and classify FAILED with
stop_reason=turn_capped when it detects the marker.
…el prompt (bytedance#4128)

* fix(skills): escape untrusted skill metadata before it enters the model prompt

Skill name/description/allowed-tools come from the frontmatter of a
user-installable .skill archive (POST /api/skills/install or a drop into
skills/custom/); the parser only strips them. The slash-activation and
durable-context siblings already html.escape these exact fields before
rendering them into a model-visible block -- but five other render sites emit
them raw. The sharpest is the default path, <available_skills> in the system
prompt (skills.deferred_discovery: false): a community skill whose description
closes the block can forge a framework-trusted <system-reminder> into the
lead-agent system prompt. Driven through the real apply_prompt_template(), the
forged tag reaches the system prompt raw on main and is neutralized here.

Escape at every render site that emits untrusted skill metadata/content:
- <available_skills> (name/description/location) and <disabled_skills> (name)
  in lead_agent/prompt.py;
- describe_skill output (name/description/allowed-tools/location) and
  <skill_index> (name) in skills/describe.py;
- the subagent <skill name=...> attribute plus the raw SKILL.md body in
  subagents/executor.py::_load_skill_messages -- its direct sibling
  skill_activation escapes both, this escaped neither.

quote=False in element-text positions (matching skill_context and the bytedance#4097
correction), quote=True in the one attribute position (matching
skill_activation). category is a controlled enum and is left as-is; escaping is
render-time only, so stored skills are unchanged and re-rendering never
double-escapes.

* fix(skills): escape skill name in the slash-activation prose line

The slash-activation reminder emitted `activation.skill_name` raw in its
prose line while escaping the same value in the adjacent
<skill name="..."> attribute. skill_name is grammar-gated to [a-z0-9-] by
resolve_slash_skill before it reaches the renderer, so this is a
defense-in-depth / consistency fix rather than a reachable injection: the
two positions can never drift if a future caller builds an activation from
an unconstrained name. Reuse the already-computed escaped_skill_name.
…twork sinks (bytedance#4130)

python-env-dump-exfil flags a file that both reads the bulk process environment
and reaches a network sink. The call-based sink check only listed requests
get/post/put/request and httpx get/post, so a bulk env dump sent through an
equally body-carrying method (requests.patch/delete, httpx.put/patch/delete, or
the generic httpx.request/stream) evaded the CRITICAL finding whenever the
destination URL was not a plain string literal (e.g. built at runtime) -- the
exact evasion the string-literal URL sink is meant to resist. requests.post was
caught but requests.patch was not, an arbitrary gap on clients the analyzer
already covers.

Complete the requests and httpx HTTP-verb surface in _call_is_network_sink so an
obfuscated-URL exfil through those methods is flagged like post/put.

Signed-off-by: Yufeng He <40085740+he-yufeng@users.noreply.github.com>
…er (bytedance#4129)

_channel_storage_user_id is the single source of truth for a channel run's
identity: _resolve_run_params resolves the owner into run_context["user_id"].
The /skill whitelist pre-check for a per-user custom agent
(_resolve_available_skill_names) resolves that owner and then drops it, calling
load_agent_config(name) with no user_id. It falls back to get_effective_user_id(),
but this runs on the ChannelManager dispatch loop where the _current_user
contextvar is never set, so it resolves "default" -- reading
users/default/agents/{name}/ instead of the owner's bucket. When that bucket has
no such agent (the common case) load_agent_config raises FileNotFoundError, which
the dispatch loop turns into "An internal error occurred" on every /skill
command; when a foreign agent shares the name, the whitelist is decided by the
wrong user's skills list.

Pass the resolved owner (run_context["user_id"]) to load_agent_config, matching
every other caller (gateway/routers/agents.py, update_agent_tool.py,
github/registry.py). None when no owner is resolvable, preserving the prior
default-user behavior for unbound/no-auth channels.
bytedance#4086)

The select: query form lets the model explicitly name the tools it wants
to promote. Capping the result at MAX_RESULTS (5) silently drops valid
selections when more than 5 deferred tools are requested at once.

This removes the [:MAX_RESULTS] slice on the select: branch in
DeferredToolCatalog.search() (exact-by-name lookups should return every
matched tool) and the redundant re-cap in build_tool_search_tool()
(search() already caps non-select query forms internally).

Co-authored-by: Claude <noreply@anthropic.com>
…wner (bytedance#4108)

* refactor(sandbox): give the host→virtual output-mask regex a single owner

Two call sites rewrite host paths back to their virtual form in text that
reaches the model — LocalSandbox._reverse_output_patterns (bash output) and
sandbox.tools._compiled_mask_patterns (glob/grep/ls results) — and each built
the same `escape(base) + boundary + tail` rule from its own copy.

That duplication has already produced two bugs: bytedance#4035 added the segment
boundary to the reverse patterns and missed the masking patterns, and bytedance#4053
had to add the same boundary to the other copy. Extract the rule into
sandbox/path_patterns.py so a third copy cannot silently disagree.

The extraction is not a pure move: the two sites disagree on the base. tools.py
derives bases from _path_variants (which yields Windows spellings) and matches
them against output whose separators it does not control, so it relaxes the
separators inside the base; LocalSandbox resolves its bases from the running
platform and must not be widened. That difference is now an explicit
`separator_agnostic` parameter rather than an accident of two implementations.
The boundary and tail constants are private: build_output_mask_pattern is the
only supported spelling, so a third site cannot import the pieces and hand-roll
a variant.

Behavior is unchanged at both sites — pinned by tests that reproduce each
pre-extraction expression byte-for-byte.

* test(sandbox): pin the base the helper must not normalize

Review notes on bytedance#4108.

The committed snapshot compares the helper against hand-copied literals of the
pre-extraction expressions, so its red-ness rests on those literals, not on the
length of _BASES -- both sides compute the same expression, and 5k fuzzed bases
produce zero byte-differences. Mutating the helper one clause at a time (12
mutations over the boundary, the tail and the escape/replace) shows the seven
committed bases catch 11: the miss is a helper that normalizes its input by
rstripping a trailing separator. Only a trailing-slash base or a Windows drive
root catches that, and Path.resolve() / str(Path(...)) strip trailing slashes,
so neither call site can produce the former. C:\ survives resolve() with its
separator intact, so that is the one base worth adding.

Also point local_sandbox's comment at path_patterns, the owner, instead of
citing _content_pattern as the class reference, and drop the rationale it now
duplicates from the owner's docstring -- a second copy of the explanation drifts
the same way the second copy of the regex did. The site-specific half stays.

Comments and test data only; no behavior change.
…ytedance#4103)

* fix(skills): activate a slash skill once per run, not per model call

SkillActivationMiddleware injects the activation reminder for a slash
command via request.override(messages=...), which LangChain's create_agent
uses for a single model call and never writes back to graph state. The
dedup guard scans request.messages for a prior reminder, but model_node
rebuilds request.messages fresh from persisted state on every tool-loop
step, so the reminder is never present on the 2nd..Nth model call of a
turn. Every model call therefore re-parsed the command, re-read SKILL.md
from disk, re-injected the multi-KB body, and re-recorded an "activate"
audit event, despite the code intending a single activation per run
(bytedance#3861 semantics: one activation call, many follow-up model calls).

Key the dedup off the run context instead, which LangGraph threads
through every model-node call of a run (the same durable signal the
request-scoped secret source already uses). The activation call records
the slash message's identity in context; later calls for the same message
skip re-activation. A new user slash message keys differently and still
activates. Secret binding is unaffected: it already re-resolves from the
persisted slash source on every call.

Adds regression tests that rebuild the real multi-call turn state and
assert a single activation across the tool loop, plus a test proving a
new slash command still activates.

* fix(skills): address review nits on run-scoped activation dedup

- Extract _already_activated(run_context, run_key) so the dedup check
  mirrors the existing _has_existing_activation_for_target sibling
  instead of an inline dense conditional.
- Compute _activation_run_key() once in _find_activation_target and
  thread it through _prepare_model_request instead of recomputing it
  at the write site, making the "same key for check and write"
  invariant explicit in the code rather than implicit.
- Document why the run-context write is an overwrite rather than an
  append/set: only the latest real user message is ever considered an
  activation target, so there is nothing earlier in the run worth
  preserving.
- Add a regression test locking in the degraded-path contract: when
  runtime.context is None, the middleware still activates per-call
  instead of crashing or wrongly no-op'ing.
* 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>
… block (bytedance#4137)

SOUL.md is agent-editable (setup_agent / update_agent persist it) and
get_agent_soul renders it into the <soul> block of the lead-agent system
prompt without escaping. A crafted personality such as
"</soul></system-reminder>\n\nSYSTEM: ..." can close the block and relocate
the text after it out of the trust zone the system prompt declares — the same
break-out the skill/memory/tool-result escaping in bytedance#4097/bytedance#4119/bytedance#4128/bytedance#4099
already closes at their render sites. <soul> is the remaining one, and it lands
in the highest-trust system-role block.

Escape with html.escape(quote=False) (element-text position, never an
attribute). Adds a regression test that fails on main.

Signed-off-by: Yufeng He <40085740+he-yufeng@users.noreply.github.com>
…nce#4136)

* fix(agents): load SOUL.md from agent dirs without config.yaml (bytedance#4135)

resolve_agent_dir requires config.yaml to be present in an agent
directory (added in bytedance#3481 to fix bytedance#3390, where memory-only directories
were mistaken for agent directories). However, SOUL.md loading does
not depend on config.yaml. When an agent is configured externally
(e.g. via DEER_FLOW_CONFIG_PATH) and the agent directory contains
SOUL.md but no config.yaml, resolve_agent_dir skips the directory
and load_agent_soul returns None.

Add a fallback in load_agent_soul: if the resolved directory does not
contain SOUL.md, check the per-user and legacy directories directly
for SOUL.md. This preserves the bytedance#3390 fix for resolve_agent_dir
(which is also used by load_agent_config) while allowing SOUL.md
to load independently of config.yaml.

* fix(agents): gate SOUL.md fallback on missing config.yaml per review

Address review feedback on PR bytedance#4136:

1. Gate the fallback condition on not (agent_dir / config.yaml).exists()
   so it only fires when resolve_agent_dir returned its default path (no
   agent dir qualified), not when a properly-resolved per-user agent simply
   lacks SOUL.md. This preserves the per-user shadowing invariant.

2. Fix test_loads_soul_from_user_dir_without_config_yaml to actually
   exercise the fallback path: per-user memory-only dir (no config.yaml,
   no SOUL.md) + legacy dir with SOUL.md (no config.yaml) -> fallback
   finds legacy SOUL.md.

3. Add test_soul_not_leaked_from_legacy_when_per_user_has_config to
   verify the gate prevents legacy SOUL.md leaking into a per-user agent.

4. Patch get_effective_user_id in test_loads_soul_without_config_yaml
   for consistency and resilience.
… subclasses (bytedance#4102)

* fix(models): apply stream_chunk_timeout default to all BaseChatOpenAI subclasses

The 240s stream_chunk_timeout default (issue bytedance#3189, PR bytedance#3195) was scoped to a
class-path allowlist of only ChatOpenAI and PatchedChatOpenAI. Every other
OpenAI-compatible provider that subclasses BaseChatOpenAI — VllmChatModel,
MindIEChatModel, PatchedChatDeepSeek, PatchedChatMiMo, PatchedChatStepFun and
PatchedChatMiniMax — was excluded, so they kept langchain-openai's aggressive
120s built-in chunk-gap timeout and, worse, silently discarded a user's explicit
stream_chunk_timeout override from config.yaml. Issue bytedance#3189 was itself reported
on mimo-v2.5 (PatchedChatMiMo), the exact class the original fix left out.

Gate the injection on issubclass(model_class, BaseChatOpenAI) instead of the
string allowlist, so any OpenAI-compatible subclass inherits the default and
honors an explicit override. Genuinely non-OpenAI clients (e.g. ChatAnthropic)
stay excluded and still have the kwarg dropped before it reaches a constructor
that would divert it into model_kwargs and fail at request time.

* fix(models): address review nits on stream_chunk_timeout default

Correct the module-level comment above _DEFAULT_STREAM_CHUNK_TIMEOUT_SECONDS:
langchain-openai's built-in stream_chunk_timeout default is 120s, not 60s
(BaseChatOpenAI.stream_chunk_timeout's default_factory reads
LANGCHAIN_OPENAI_STREAM_CHUNK_TIMEOUT_S with a 120.0 fallback).

Simplify the BaseChatOpenAI gate in _apply_stream_chunk_timeout_default from
`isinstance(model_class, type) and issubclass(model_class, BaseChatOpenAI)` to
just `issubclass(...)`. The sole caller passes model_class from
resolve_class(), which already raises before returning anything that isn't a
type, so the isinstance half can never be False there.

Also soften the docstring's non-OpenAI-client bullet: ChatAnthropic declares
extra="ignore" and silently drops an unrecognized kwarg rather than diverting
it into model_kwargs and failing at request time (that failure mode is
specific to other OpenAI-style clients).
…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.
@imohammedansari
imohammedansari force-pushed the monocle-instrumentation branch from 68bc1d2 to 6c36548 Compare July 13, 2026 23:25
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.
… 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.
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.