782 Commits

Author SHA1 Message Date
Daoyuan Li
df57f8e269
fix(lark): preserve app secrets during credential switches (#4820) 2026-09-01 15:37:19 +08:00
betterkite
b552b5015c
fix(messages): drop legacy <uploaded_files> tag handling (#4826)
* fix(messages): drop legacy <uploaded_files> tag handling (#4212)

PR #4174 unified upload-context injection on <current_uploads> (IM and web
both flow through UploadsMiddleware), and #4632 documented the current
path. This removes the remaining backward-compat parsing of the
pre-#4174 <uploaded_files> tag, the final cleanup item tracked by the
issue:

- deermem: only <current_uploads> is stripped from human turns before
  memory persistence, and the upload-sentence scrubber drops the legacy
  tag alternative.
- mem0: the mirrored message filter recognises only <current_uploads>.
- InputSanitizationMiddleware: remove the legacy tag from the blocked-tag
  denylist (it existed only because deermem parsed the old tag).
- frontend: stripUploadedFilesTag / stripInternalMarkers /
  parseUploadedFiles and the message-list fallback parse only
  <current_uploads>; demo thread fixtures are migrated to the current tag.

Scope decision: a <uploaded_files> block in pre-#4174 history is now
treated as ordinary user content (pinned by tests in both layers) instead
of being silently dropped or stripped.

* style: apply prettier formatting to stripUploadedFilesTag

* fix(uploads): keep legacy <uploaded_files> stripping for display/export only

Addresses review feedback on #4826: removing the legacy tag from the
frontend display layer made pre-#4174 threads render raw <uploaded_files>
XML (with server-side upload paths) in chat, copy data, and JSON exports.

The backend cleanup stands — memory pipelines and the sanitization denylist
treat only <current_uploads> as an internal marker. The frontend keeps the
legacy spelling in its display/export-only utilities
(stripUploadedFilesTag / INTERNAL_MARKER_TAGS / parseUploadedFiles and the
message-list fallback) so old history renders cleanly without leaking
internal paths, while the memory/sanitization scope-decision tests remain
unchanged.

Frontend tests now pin both spellings: <current_uploads> and legacy
<uploaded_files> are stripped from copy data, markdown leak-stripping, and
JSON exports.

* docs(ui): record accepted display-spoof tradeoff for legacy upload tag

Review note (willem-bd): since <uploaded_files> is off the sanitization
denylist, a live user can type the legacy spelling and fabricate file
chips / hide their own message text in display. Display-only and
self-inflicted with no backend semantics, so it is accepted for now;
documented at both the message-list fallback and stripUploadedFilesTag.
Age-gating the legacy spelling remains a possible follow-up.

---------

Co-authored-by: betterkite <313258397+betterkite@users.noreply.github.com>
2026-09-01 15:26:33 +08:00
Aari
cdc886ae85
fix(sandbox): make tool descriptions optional (#4878)
* fix(sandbox): make tool descriptions optional

* fix(sandbox): address optional description review

* test(sandbox): pin optional description contracts
2026-09-01 14:15:26 +08:00
Janlay
45adb8fbb5
perf(runtime): bound gateway memory after terminal runs (#5112)
* fix(runtime): clean up terminal run records

* perf(sandbox): bound local path caches

* perf(runtime): release terminal run cycles

* fix(runtime): address terminal cleanup review

* fix(runtime): clean up after end publish failure

* fix(runtime): guard terminal cleanup from cancellation

* fix(runtime): discard fenced journal buffers

* fix(runtime): harden abort and teardown paths
2026-09-01 10:56:43 +08:00
Yufeng He
a4f6665ef4
fix(security): sanitize MCP-sourced tool results through the same trust boundary (#4839)
* fix(security): sanitize MCP-sourced tool results through the same trust boundary

Signed-off-by: Yufeng He <40085740+he-yufeng@users.noreply.github.com>

* fix(security): sync the trust-boundary docs with tag coverage and pin the untagged branch

Signed-off-by: Yufeng He <40085740+he-yufeng@users.noreply.github.com>

---------

Signed-off-by: Yufeng He <40085740+he-yufeng@users.noreply.github.com>
2026-09-01 09:49:32 +08:00
hataa
17cac3420a
fix(subagents): clean up background task entry on unexpected poller exit (#5069)
* fix(subagents): clean up background task entry on unexpected poller exit

* fix(subagents): pin deferred cleanup to the persistent subagent loop

The non-terminal fallback scheduled the deferred registry cleanup with
asyncio.create_task on the poller's own loop. Under synchronous tool
invocation the sync wrapper runs the tool coroutine through
asyncio.run(), which cancels caller-loop tasks at teardown, so the
cleanup died before executing and the _background_tasks entry leaked —
the same lifecycle leak the terminal path already fixed.

Schedule the deferred cleaner on the process-owned persistent subagent
loop instead, via the new public executor helper
run_on_isolated_subagent_loop (asyncio.run_coroutine_threadsafe). The
cleaner only touches thread-safe registry helpers, so it is
loop-agnostic. A caller-loop fallback remains for the unreachable case
where the persistent loop cannot be obtained, so scheduling never
raises out of an unwind path that is already handling an error. The
polling-timeout return path, which shares the scheduler, is fixed the
same way.

Tests no longer stub the scheduler: the non-terminal fallback test
drives the real scheduling wrapper on an equivalent long-lived loop and
asserts cleanup runs after asyncio.run() tears the caller loop down,
and run_on_isolated_subagent_loop itself is covered against the real
persistent loop with the caller loop closed underneath.

* fix(subagents): harden interrupted finalization against failing status path

Three edge cases from review on the unexpected-exit unwind:

1. Finalization no longer depends on the failing status accessor.
   _peek_subagent_result distinguishes a gone entry from an unreadable
   one instead of letting the accessor's exception abort the unwind;
   _finalize_interrupted_subagent never raises (so the original poller
   exception is preserved) and attaches the deferred cleaner, whose
   last resort force-removes a persistently unreadable entry via the
   new executor force_cleanup_background_task.

2. The generic-error unwind waits only a short grace period
   (_UNEXPECTED_EXIT_GRACE_SECONDS) instead of the full execution
   timeout before re-raising; the remaining lifecycle stays with the
   deferred cleaner on the persistent subagent loop.

3. The deferred cleaner reports the subagent's final usage (deltas
   since the unwind snapshot included, via final=True bypassing
   usage_reported; the journal dedupes by source_run_id) before
   removing the terminal entry. The report is transferred in a plain
   worker thread so the RunJournal's loop-bound progress flush is
   skipped rather than scheduled on a foreign loop.

* fix(subagents): pin deferred final usage delivery to the parent run loop

_report_deferred_final_usage ran record_external_llm_usage_records in a
to_thread worker, making it the first cross-thread RunJournal writer: the
unlocked accumulators can lose token updates and _tokens_by_model mutations
race get_completion_data() iteration on the parent loop. Capture the parent
loop at unwind time (it is alive in every path that continues the run) and
deliver the final report onto it with call_soon_threadsafe, serialized with
all other journal access; when that loop is already closed (asyncio.run
teardown) the report is dropped on purpose — the run has persisted and
nothing reads the counters back.

The live-loop test exercises the real recorder path (journal captures the
running loop of every call) instead of stubbing _report_subagent_usage, so a
cross-thread report would surface as a wrong-loop entry. Also gates the two
teardown tests on the caller loop actually closing (the deferred cleaner
could otherwise legitimately deliver while that loop is still winding down),
and adds a task_tool-level regression test for execute_async submit failure
leaving no registry residue (rolled back inside execute_async since #5086).

* docs(subagents): document the reverse loop boundary; observability + test fixes

Extend subagents/AGENTS.md's Isolated-loop callback boundary with the
reverse-direction contract from #5069: deferred registry cleanup is pinned
to the persistent subagent loop via run_on_isolated_subagent_loop, and the
final usage report is handed back onto the parent run's loop captured at
unwind time — never invoked from the persistent loop or a worker thread,
which would silently reintroduce the journal accumulator/iteration race.

Dropping the final report (closed parent loop) is the one path where a
subagent's tail usage goes permanently unaccounted, so both drop branches
now log at info with the execution id and the unaccounted record count.

Restore the retention assert in test_deferred_cleanup_task_retained_and_
survives_gc: the bounded wait observes the production done-callback discard,
the assert (not a manual discard) is what fails if that callback is
deleted.

* fix(subagents): honour grace-wait cancellation and shrink deferred-cleaner captures

Two review follow-ups on the unwind:

- The shared unwind absorbs CancelledError (never-raise contract), so a
  graph-node cancellation landing inside the generic-error grace wait was
  swallowed and the node ended as a failed tool call instead of an
  interrupted run. The generic branch now re-checks task.cancelling() after
  the unwind and re-raises CancelledError; the absorb site documents why the
  cancellation path needs it and where the discrimination lives.

- The deferred cleaner captured the whole run runtime, pinning the parent
  run's journal and event store for up to a full poll budget (~31 min) via
  the strongly-held task handle — worst on the polling-timeout path, where a
  stuck subagent pinned its run's journal for a second full timeout after
  the tool returned. The recorder is now resolved on the unwind path and is
  the only capture (plus ids and the report loop); a None recorder skips
  reporting entirely.

Both behaviours are regression-tested (red on the previous head, green
after): a cancellation parked inside the grace wait surfaces as
CancelledError, and the runtime is collectable while the cleaner still
polls. The closed-loop drop test now uses a real recorder via
runtime.callbacks so the drop it pins is loop-based, not recorder-absence.
2026-08-31 23:38:12 +08:00
Terminator666666
c17aa8b98f
fix(mcp): reject credentials that cannot travel as HTTP header values (#5066)
* fix(mcp): reject credentials that cannot travel as HTTP header values

A request-scoped secret or user_auth credential with a trailing newline
(the usual result of reading a token from a file, or a CRLF env-file),
CR/LF, surrounding whitespace, or characters outside Latin-1 sailed
through the credential interceptors into the HTTP client, where httpx/h11
reject it with an exception that echoes the full value:

    LocalProtocolError: Illegal header value b'Bearer sk-...\n'

ToolErrorHandlingMiddleware copies that message into a model-visible
ToolMessage, so the secret landed in the prompt, the checkpoint, and
traces - everywhere headers_from_context promises it never goes.

Add illegal_header_value_reason to mcp/headers.py, mirroring the
transport's own rules (Latin-1 encodable; h11's field_vchar is [^\x00\s]
with SP/HTAB legal only between visible characters), and fail closed in
both interceptors before the value can reach the client. The denial names
only the secret key (plus the reason) and never repeats the value.

Illegal values are denied regardless of on_missing: the key is present,
so a passthrough fallback would silently run the call under the shared
discovery credential - the exact authority confusion the deny default
exists to prevent.

Values the transport accepts are not rejected: embedded SP/HTAB
('Bearer <token>'), Latin-1 high bytes, and DEL all still pass, pinned
by tests against h11's observed behaviour.

* fix(mcp): tighten header value validation to httpx's ASCII boundary

The validator mirrored h11's Latin-1 boundary, but the transport rejects
more than h11 does: build_server_params hands dict[str, str] headers
through the MCP SDK's create_mcp_http_client into httpx.AsyncClient, and
httpx (pinned 0.28.1) encodes str header values as ASCII - so a Latin-1
high byte like 'Bearer caf\xe9' passed validation here only to raise
UnicodeEncodeError inside httpx before h11 ever ran, with the exception
message repeating the offending value.

Validate str values against ASCII instead, flip the tests that pinned
Latin-1 high bytes as transportable, and pin the boundary against the
real client: create_mcp_http_client must reject what the validator
flags and construct cleanly for what it accepts (embedded SP/HTAB and
DEL still pass).

Addresses review feedback on the ASCII vs Latin-1 boundary.

* fix(mcp): validate OAuth and static header values at the same boundary

The validator added for headers_from_context and user_auth left two paths
uncovered. A token endpoint returning an access_token or token_type with a
newline reached httpx/h11, which raise with the full token in the message, and
ToolErrorHandlingMiddleware copies that message into a model-visible
ToolMessage -- the leak this PR set out to close. The operator's static headers
had the same hole.

OAuthTokenManager.get_authorization_header now renders the Authorization value
through one checked helper, so the tool interceptor, the initial discovery
headers and the durable task path are all covered by a single guard. The
rendered value is what gets checked rather than the two fields separately,
because that is what the transport sees: an access_token with leading
whitespace is legal once it follows "Bearer ".

build_server_params applies the same check to statically configured headers.
build_servers_config already isolates a per-server failure, so a bad value
drops that one server and logs the reason instead of the value.

* docs(mcp): correct which transport echoes the full header value

The rationale claimed httpx and h11 both render the full value into their
exception message. Only h11 does, on the line break and surrounding whitespace
cases. httpx's ASCII failure is a UnicodeEncodeError naming the offending
character and its position, not the credential, so at most one character
escapes there; refusing the value up front buys an actionable error rather than
an encode failure raised from inside the client.

Corrected in headers.py and in every copy of the claim: context_headers.py,
user_scoped_auth.py, oauth.py, client.py, mcp/AGENTS.md, docs/MCP_SERVER.md,
the frontend mcp.mdx, and the test comments carrying the same wording. No
behavior change.

---------

Co-authored-by: Terminator666666 <Terminator666666@users.noreply.github.com>
2026-08-31 15:07:30 +08:00
Aari
317577e285
fix: enforce custom agent skill allowlists in sandboxes (#5077)
* fix: enforce agent skill allowlists in sandboxes

* fix: guard E2B skill projection resets

* fix: preserve agent skill isolation across delegation

* fix: close sandbox skill isolation bypasses

* fix(sandbox): close skill isolation review gaps

* fix(sandbox): harden skill isolation lifecycle
2026-08-31 14:35:08 +08:00
Ryker_Feng
8c8c5ac246
feat(search): add native recency filters (#5099)
* feat(search): add native recency filters

* fix(search): enforce recency across backends

* docs(search): record recency provider contract
2026-08-30 21:25:05 +08:00
Yuzhong Zhang
8eda71fd97
fix(agents): normalize Command-wrapped tool results (#4977)
* fix(agents): normalize Command-wrapped tool results

Command-wrapped ToolMessages skipped result metadata and progress
tracking, so error receipts could be recorded as success.

* fix(agents): stamp error meta from subagent_status failures

Delegated task Commands leave ToolMessage.status at success and do not
use an Error: content prefix, so normalize_tool_message was labeling
failed/cancelled/timed_out results as success. Honor structured
subagent_status before content heuristics and cover the four statuses.

* style: ruff-format tool_result_meta tests

---------

Co-authored-by: Yuzhong Zhang <BetterAndBetterII@users.noreply.github.com>
2026-08-30 15:37:38 +08:00
PeaceMaker-best
137a3cb60d
fix(authz): recheck policy before sandbox reuse (#5006)
* fix(authz): recheck policy before sandbox reuse

* fix(authz): avoid duplicate async sandbox checks

* fix(authz): scope sandbox decision across middleware

* fix(authz): construct async providers on the event loop

* test(authz): avoid cold imports under Blockbuster

---------

Co-authored-by: 嗜鵼 <hy2010hy2010@qq.com>
Co-authored-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-08-30 15:29:51 +08:00
Wu Shuwen
a4e2a2b934
fix(sandbox): bound Windows command execution (#4946)
* fix(sandbox): bound Windows command execution

* fix(sandbox): preserve Windows output encoding

* fix(sandbox): honor Python UTF-8 mode

* fix(sandbox): normalize captured command newlines

* fix(sandbox): scope newline normalization to Windows
2026-08-30 15:06:55 +08:00
Zeren Wang
22b0456e45
feat(harness): subagent report contract and delegation acceptance criteria (#5090)
* feat(harness): subagent report contract and delegation acceptance criteria (RFC #4651 PR3)

Layer 1 receipt verification is inert unless subagents actually cite their
execution record. This lands the prompt layer that closes the adoption gap:

- New subagents/report_contract.py owns the model-facing contract text,
  derived from the single-owner citation format (format_citation /
  receipt_id) so prompts can never drift from the verifier. The executor
  injects <report_contract> into every subagent system prompt — built-in
  and custom alike — requiring [rN tool_name] citations for action claims,
  verifiable handles (absolute path, URL, ID, HTTP status) for
  deliverables, and explicit failure reporting; the citation clause
  follows verification.receipts_enabled.
- The task tool gains an optional keyword-only acceptance_criteria
  parameter, handed to the SubagentExecutor constructor and rendered into
  the subagent's SystemMessage (stripped, capped 20 items x 500 chars) —
  deliberately never the task HumanMessage, which InputSanitizationMiddleware
  classes as genuine user input and would HTML-escape into untrusted-input
  framing. The docstring frames subagent results as self-reports, states
  the citation cross-check's evidence boundary (resolved = the call
  happened, not that the claim is correct), and documents when to attach
  criteria with the canonical leaf forms. Deterministic leaf checking
  remains a separate layer.
- The lead delegation workflow now instructs reading the ledger citation
  line as execution evidence only and spot-checking verifiable handles
  before synthesizing.
- report_contract / acceptance_criteria are registered as blocked
  framework-authority tags in input sanitization so untrusted input
  cannot forge the verification contract.

* fix(harness): neutralize acceptance criteria before system-channel injection

render_acceptance_criteria_section interpolated lead-model-supplied acceptance_criteria verbatim into the subagent SystemMessage after only stripping/capping. A criterion such as '</acceptance_criteria><system>...</system>' could close the wrapper and open a framework authority tag, bypassing InputSanitizationMiddleware.

Route each criterion through neutralize_untrusted_tags (the shared prompt-injection primitive) so blocked authority tags are HTML-escaped before interpolation. Add regression tests at the renderer and the executor _build_initial_state path.

* fix(harness): keep model-supplied criteria off the system channel

- Move acceptance_criteria values into the task HumanMessage — the
  untrusted channel InputSanitizationMiddleware escapes and
  boundary-frames. The subagent SystemMessage now carries only a
  framework-owned <acceptance_criteria> pointer note (no criterion
  text), so natural-language injection inside a criterion keeps
  task-data priority and cannot override framework instructions
  (PR #5090 review, willem-bd P1).
- Condition the lead delegation workflow's citation verification
  guidance on verification.receipts_enabled and qualify the task
  tool's result-reading text with the enabled state, so a
  receipts-disabled configuration no longer tells the lead to
  require citation evidence that cannot exist (P2).

* fix(harness): drop execution-record promise from report contract when receipts are disabled

The <report_contract> opening was emitted unconditionally, so a
verification.receipts_enabled=false subagent was told its report would
be cross-checked against an execution record that cannot exist in that
mode (terminal_receipts() returns None; no verdict, no ledger citation
line). The opening now follows receipts_enabled: enabled keeps the
cross-check language, disabled describes the handle-only review mode
(PR #5090 review, willem-bd P2).

* docs: record the prompt-layer trust-boundary self-check

Generalizes the PR #5090 review outcome: before adding prompt text, ask
of every data source in it what trust level it has and which channel it
should ride — model/user-influenceable values ride the untrusted
sanitized data channel, never framework-owned system text. Added to the
PR template (Agents/LangGraph surface) and agents/AGENTS.md.
2026-08-30 11:39:25 +08:00
hataa
567a06783c
fix(mcp): tear down the in-flight owner when get_session is cancelled mid-eviction (#5008)
* fix(mcp): keep session owner teardown safe across cancellation paths

* fix(mcp): gate pooled-session publication on the commit inside the owner task

The owner resolved `ready` as soon as initialize() finished, but the
session only became pool property when the creator promoted it into
_entries in Phase 4. A concurrent get_session() could join the in-flight
creation and receive that session from Phase 2b while the creator was
still parked in the Phase-2 eviction teardown; cancelling the creator
then ran the Phase-2 unwind, which unconditionally shut the owner down —
closing the session underneath the joiner (#5008 review).

Move the commit into the owner task: initialize() success now pops the
in-flight record, registers the session in _entries, and resolves ready
with the session in one atomic critical section, so 'ready resolved with
a result' is exactly 'session registered and pool-owned'. Joiners can
therefore only ever receive a committed session, and both creator unwind
paths (Phase 2 and Phase 3) skip teardown when the creation already
committed, leaving the pooled session to LRU eviction / close_*. When the
record was removed before the commit (close_* or creator unwind), the
owner aborts and ready carries the same cancellation the old Phase-4
not-still-ours path raised, so joiners fail with the creation's outcome
instead of hanging or holding an unmanaged session.

test_cancelled_creator_does_not_close_session_held_by_joiner reproduces
the review's scenario deterministically (MAX_SESSIONS=1, hung LRU victim,
gated initialize, second caller receives the session, creator cancelled):
red on the previous commit, green now.
test_joiner_follows_creation_outcome_when_creator_is_cancelled pins the
joiner outcome-gating semantics as a drift guard.
2026-08-30 11:36:26 +08:00
luo jiyin
0dd233afc4
feat(sandbox): make E2B mount upload deadline configurable (#4876)
* feat(e2b-sandbox): make mount upload deadline configurable

Replace the hardcoded 120-second mount upload deadline with a
configurable `mount_upload_deadline_seconds` key read from
SandboxConfig (extra=allow). The value is validated: zero and
negative inputs are clamped to 1 second. Omitting the key
preserves the existing 120-second default.

This addresses the follow-up from PR #4842 review: operators
with large mounts or slow networks can now size the deadline to
their deployment without changing code.

* fix(e2b-sandbox): address review feedback on configurable deadline

- Remove import-time default capture from _mount_deadline_reason()
  and _MountUploadBudget.deadline_seconds to prevent silent drift.
- Add warning log when mount_upload_deadline_seconds is clamped to 1
  (was silent before).
- Update AGENTS.md E2B Mount Uploads section: deadline is now
  configurable, not fixed 120.
- Add mount_upload_deadline_seconds to YAML examples in provider
  docstring and __init__.py.
- Add config-path test that exercises SandboxConfig -> _load_config ->
  _apply_mounts end-to-end.

* fix(e2b-sandbox-provider): handle non-numeric mount_upload_deadline_seconds

Guard _resolve_mount_upload_deadline against None, non-numeric strings,
and other invalid values. None returns the default; non-numeric strings
like '120s' or 'abc' log a warning and fall back to the 120-second
default instead of crashing provider init with TypeError/ValueError.

Extend the parametrized clamp test with None, suffix, and alpha cases,
and add a warning assertion. Update CONFIGURATION.md with the new
mount_upload_deadline_seconds key and its behavior.

* fix(sandbox): handle infinite mount deadline
2026-08-30 11:31:53 +08:00
Wuong
e12925458a
feat(streaming): make heartbeat interval configurable (#5017)
Co-authored-by: Wuong <26929475+Wuong@users.noreply.github.com>
2026-08-30 10:46:01 +08:00
hataa
2f8d1cfc21
fix(subagents): harden background-task registry and capacity snapshot edge cases (#5086)
* fix(subagents): harden background-task registry and capacity snapshot edge cases

- execute_async drops the just-registered background entry when submitting
  to the isolated loop fails. The caller sees the exception and never
  polls, and cleanup_background_task refuses non-terminal entries, so the
  entry would otherwise stay as a PENDING zombie forever.
- SubagentExecutionCapacity.snapshot derives queued from len(_waiters)
  instead of iterating it. snapshot is read from non-loop threads (e.g.
  configure_subagent_execution_capacity) while the loop thread mutates the
  deque, so iteration can raise 'deque mutated during iteration'. The raw
  length may count a waiter that just timed out but has not removed itself
  yet, which only makes the busy-check more conservative.

* fix(subagents): close failure-path gaps around background submit

Address both review findings on the background submission lifecycle:

- execute_async() copies the isolated-loop context before registering
  the _background_tasks entry, so a context-copy failure (callback-
  manager copy or loop-bound handler filtering) can no longer strand a
  permanent PENDING entry the caller will never poll.
- _submit_to_isolated_loop_in_context() resolves the loop before
  calling the coroutine factory. As direct run_coroutine_threadsafe
  arguments the coroutine was created first, so a loop-startup failure
  stranded a never-awaited coroutine (RuntimeWarning + retained
  captures until collection). Both call sites share the fix.

New tests verified red on the previous implementation, green after:
- context-copy failure leaves no registry residue
- the real submit helper (only the loop getter patched) never invokes
  the coroutine factory when loop startup fails

* fix(subagents): close the coroutine when scheduling rejects it

run_coroutine_threadsafe can itself raise once the coroutine exists (e.g.
the loop closes between the lookup and the internal call_soon_threadsafe).
Wrap the call, close the rejected coroutine, and re-raise; a focused test
patches only run_coroutine_threadsafe and asserts the created coroutine
reaches CORO_CLOSED.
2026-08-30 10:43:58 +08:00
Aniket Wagh
8a830f6354
fix(deps): depend on renamed tenki package instead of tenki-sandbox (#5087)
* fix(deps): depend on renamed tenki package instead of tenki-sandbox

tenki-sandbox has been removed from PyPI and republished as tenki. Its old wheel URL still resolves, so existing lockfiles keep installing and the breakage is invisible to anyone with a warm lock; any fresh resolution fails with 'tenki-sandbox was not found in the package registry'.

tenki 1.0.2 still ships the tenki_sandbox module, so the imports in community/tenki/provider.py and sandbox.py are unchanged.

Fixes #5081

* fix(tenki): point install guidance at the renamed distribution

The rename to `tenki` left the user-facing remediation still naming the
removed package. `_import_client` raised "pip install tenki-sandbox" on the
missing-extra path — the exact instruction this change proves now 404s on
PyPI, handed to the user at the exact moment they need it to work.

Update that message and the remaining `tenki-sandbox` references in the
provider, sandbox adapter, README, sandbox AGENTS.md and the test docstring.
The imported module stays `tenki_sandbox`, so the distribution and module
names now differ; each mention says so rather than just swapping the string.

No behavior change beyond the error text.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(tenki): migrate the provider to the 1.x workspace-only API

Renaming the dependency was not enough. tenki 1.0.2 keeps the tenki_sandbox
module name but not its contract: Client.create dropped project_id and has no
**kwargs to absorb it, and IdentityWorkspace no longer carries `projects`
(the attribute is gone from the package entirely). Both configuration paths
therefore failed before a sandbox could be created — explicit project scope
raised TypeError, and automatic scope raised AttributeError walking
workspace.projects.

Scope is now the workspace alone. _resolve_scope returns a single workspace id,
auto-selecting when the account has exactly one, and project_id is gone from
create_kwargs and from the documented config surface.

A stale project_id in config.yaml warns rather than fails. SandboxConfig is
extra="allow", so simply not reading the key would leave it scoping nothing
with no signal; it also used to short-circuit the identity lookup, so operators
with more than one workspace need to know they must now set workspace_id.

The suite passed against the broken provider because the fake client took
**kwargs and swallowed the project_id the real SDK rejects. The double now
mirrors 1.0.2 — keyword-only, no **kwargs — so an unexpected argument is a
TypeError in tests exactly as it is against the SDK. Reintroducing the old
create call fails 20 tests; before this change it failed none.

Verified against the exact locked wheels: every other kwarg the provider
passes (name, workspace_id, sticky, wait, max_duration, image, cpu_cores,
memory_mb, env) and every SDK surface it touches (who_am_i, Identity.workspaces,
wait_ready, exec, close, the fs API, the four terminal exception classes) is
unchanged in 1.0.2.

Reported by willem-bd in review.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* docs(config): drop sandbox.project_id from the Tenki example

The canonical example still documented project_id as a supported optional key
after the provider stopped honouring it, so an operator following it could set
the key, get no scope from it, and hit a workspace-resolution failure with
nothing in the example to explain why.

Replaced with a migration note rather than a silent deletion: someone upgrading
already has the key in their config.yaml and needs to know it is inert now and
that workspace_id is what scopes a sandbox on Tenki 1.x.

---------

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
Co-authored-by: Aniket Wagh <aniketwaghh@users.noreply.github.com>
2026-08-30 10:37:58 +08:00
Zeren Wang
bb75f8d736
feat(sandbox): share sandbox identity derivation and acquire serialization (#4741) (#5089)
* feat(sandbox): share sandbox identity derivation and acquire serialization (#4741)

Remote providers (AIO, E2B, BoxLite, Tenki, OpenSandbox) each inlined the
same sha256(user:thread)[:16] sandbox-id expression and kept per-scope lock
dicts that grew unboundedly until shutdown. This extracts both mechanisms
into shared components without changing provider lifecycle, ids, capacity
semantics, or public tool behavior:

- sandbox/identity.py: keyword-only derive_sandbox_scope_token (byte-pinned
  compatibility contract) + is_sandbox_scope_token; per-provider golden
  vectors pin current behavior including BoxLite's raw-None quirk and each
  provider's private user_id resolution.
- sandbox/acquire_serialization.py: AcquireSerializer — per-key lock table
  with holder/waiter refcount reclamation, bounded dedicated executor
  (async waits off both the event loop and the default executor),
  worker-owned cancellation cleanup (no event-loop callback dependency), idempotent close().
- Each provider adopts both components; AIO/E2B key by (user_id, thread_id)
  with acquire and (E2B) release serialized; BoxLite/Tenki/OpenSandbox key
  by derived sandbox id and offload the whole sync acquire to the
  serializer's executor so a cancelled awaiter cannot overlap a retried
  same-scope body (leaked-remote-VM regression caught in review).
- thread_id=None acquires stay unserialized; provider shutdown()/reset()
  close the serializer; E2B capacity/ledger/reconciliation and AIO
  ownership/flock machinery untouched.
- blocking-IO anchor proves contended OpenSandbox acquire_async stays off
  the event loop (teeth verified red/green); AGENTS.md documents the
  shared components.

* refactor(sandbox): address review on acquire serialization (#5089)

- Replace unreachable checkin branch with an assertion: run() returns
  False only after abandon(), which the except handler always re-raises;
  the old _checkin would have double-decremented the refcount.
- Document the task.cancelling() == 0 assumption in hold_async.
- Drop unused thread_id/user_id kwargs from BoxLite and Tenki
  _acquire_scope_locked (OpenSandbox still forwards them).

* fix(sandbox): preserve request ContextVars in acquire executor bridge (#5089)

loop.run_in_executor() does not copy contextvars, unlike the inherited
SandboxProvider.acquire_async() which used asyncio.to_thread(). The
BoxLite/OpenSandbox/Tenki acquire_async bridges introduced in this PR
therefore dropped the request trace id (logged as trace_id=-).

Add AcquireSerializer.run_on_executor(), which copies the calling
context and runs the callable through ctx.run, and route all three
providers through it. Add regression tests binding request_trace_context
and verifying the worker thread observes it.
2026-08-30 10:30:34 +08:00
Sunshine
bf740ffa90
feat(auth): add personal access tokens for programmatic API access (#5041)
* feat(auth): add personal access tokens for programmatic API access (#4849)

Backend-first implementation of the PAT contract from #4849: show-once
dfp_ tokens bound to their owning user (AUTH_SOURCE_PAT,
is_internal=false), digest-only storage (migration 0017), strict
credential precedence (invalid Bearer is a 401, never cookie fallback),
CSRF double-submit skipped only for Bearer requests while
auth-endpoint origin checks still run, scopes intersecting the authz
route permissions, session-auth-only PAT management and password
changes, and throttled best-effort last_used_at stamps.

* fix(auth): harden PAT scope boundary and schema parity from adversarial review

Independent review of the initial draft found: (1) scopes only constrained
the threads/runs permission axis while admin routes treated a PAT as its
(possibly admin) owner — is_admin_user now rejects PAT callers outright
since no scope grants admin capability; (2) the model declared a column
UNIQUE constraint while migration 0017 created a named unique index, so
downgrade failed on create_all-bootstrapped DBs — both now use the named
unique index; (3) auth-disabled mode is an operator override and now stays
ahead of the Bearer check so a stray Authorization header cannot 401 an
E2E sandbox; plus wiring the previously-unused constants, bounding the
last_used_at stamp cache, and four new tests (middleware-level expiry,
expires_in_days, admin-capability rejection with session control, and the
auth-disabled precedence).

* docs(api): document personal access tokens for programmatic API access

* fix(auth): close PAT security boundaries from review (default-deny routes, extension admin suppression)

P1-1: scope intersection only constrains @require_permission routes, so
undecorated mutation routes (DELETE /api/memory, POST /api/agents, Lark
credential switching, channel config) accepted a PAT holding a single read
scope. AuthMiddleware now enforces a default-deny route policy in
auth/pat.py: PAT requests are admitted only to the thread/run lifecycle
routes the v1 scopes govern; everything else answers 403 regardless of
scopes. Session-cookie callers are unaffected.

P1-2: the extension principal resolver projected is_admin/roles from the
raw system_role, so an admin-owned PAT passed
deerflow_extension_api.require_admin on contributed routes despite the
documented no-admin guarantee. The projection is now PAT-aware and
suppresses every admin signal for PAT callers, mirroring
deps.is_admin_user.

Both fixes carry regression tests (route outside policy 403 + session
control; production resolver admin suppression), and API.md documents the
default-deny boundary.

* fix(auth): enforce PAT scopes on stateless run entry and harden decorator

Follow-up hardening from an independent audit of the P1 fixes:

- POST /api/runs/stream and /api/runs/wait were the only allowlisted run
  entrypoints without @require_permission, so a threads:read-only PAT
  could still start runs (same bug class as P1-1, now closed): both now
  carry @require_permission("runs", "create"). POST /api/threads and
  POST /api/threads/search gain threads:write / threads:read for the
  same reason. Authorization-disabled deployments see no change (the
  permission set resolves to all permissions).
- require_permission now binds the wrapped signature to locate a
  positionally-passed request before injecting the test stub, fixing
  'got multiple values for argument' on direct positional unit-test
  calls.
- API.md: the intro PAT example used GET /api/models, which the new
  default-deny policy 403s — replaced with GET /api/threads; the
  default-deny route list now spells out method sets.

Regression test: threads:read-only PAT is 403 on the decorated stateless
entry while a runs:create PAT passes.

* fix(auth): address review P2s (empty Authorization header, PAT name trimming, API example)

- CSRFMiddleware treats an explicitly empty Authorization header as
  present (is None), so an invalid credential always reaches
  AuthMiddleware's uniform 401 instead of a CSRF 403 that varies by
  method/CSRF state. Regression: empty-header request dies at auth.
- PATCreateRequest strips the name and rejects whitespace-only values
  before token generation; created names are stored trimmed.
- API.md intro PAT example now uses the implemented
  POST /api/threads/search endpoint (GET /api/threads does not exist).
- AGENTS.md trimmed back under the guidance soft budget after the
  upstream merge.

* fix(auth): tighten PAT route policy to implemented methods only

The allowlist admitted GET /api/threads, a method no router implements.
Pre-authorizing a dead method weakens the default-deny boundary: a
future GET collection route added without a permission decorator would
become PAT-reachable without an explicit policy change. Restrict the
rule to POST, fix the stale GET description in API.md's PAT
constraints, and document the default-deny boundary accurately in the
gateway AGENTS.md guidance (only the threads/runs allowlist is
PAT-reachable; every other authenticated route 403s PAT callers).

Audited every remaining rule against the mounted routers: all other
method+path entries map to real routes. Regression:
test_pat_policy_does_not_pre_authorize_unimplemented_methods.

* test(auth): guarantee the negative digest test mutates the token

token[:-1] + "X" is identical to the original whenever the generated
token already ends in X (1/62), making the negative digest assertion
fail intermittently. Choose the replacement character based on the
existing tail so the mutated token always differs.

* fix(auth): require runs:cancel for cancel-then-stream requests

stream_existing_run is gated at runs:read so action-less stream joins
work with read-only credentials, but its ?action=interrupt|rollback
branch cancels the run — a separate permission. A runs:read-only PAT
passed both the PAT route policy and the route decorator and could
interrupt or roll back an active run, bypassing the runs:cancel scope.

Decorators cannot express query-parameter-conditional permissions, so
the check lives in require_cancel_permission_when_action(), applied at
the top of the handler. Regression drives the real helper through the
production middleware: runs:read-only PAT + action is 403, the same
token joins action-less, runs:read+cancel passes, session control
unaffected.

* docs(changelog): add the PAT feature entry

* docs(readme): add personal access tokens section

Repo documentation-update policy requires user-facing features to
update README.md in the same changeset; the PAT feature previously
touched only backend/docs/API.md and the gateway AGENTS.md.

* fix(auth): require runs:cancel for mutating multitask strategies

All five run-creation entrypoints were gated only by runs:create, but
RunCreateRequest.multitask_strategy accepts interrupt/rollback and
start_run forwards it to create_or_reject, which terminates an
already-active run. A runs:create-only PAT could therefore kill an
existing run through a create request, bypassing runs:cancel.

Decorators cannot express body-parameter-conditional permissions, and
per-route checks leave the same hole for the next entrypoint, so the
gate lives in start_run itself — the single choke point every
run-creation path (HTTP routes and internal launchers) flows through.
Regenerate launches pass multitask_strategy="reject" and are
unaffected; requests without a stamped auth context (internal/test
compositions) skip the gate.

The check is the shared authz.require_cancel_permission_if primitive;
require_cancel_permission_when_action now delegates to it, so every
request dimension that carries cancel capability (query action, body
strategy) flows through one gate.

Regression drives the real middleware stack: runs:create-only PAT +
interrupt/rollback is 403 with the exact detail, reject (explicit and
default) stays available, runs:create+cancel passes, session control
unaffected; a source anchor pins the gate inside start_run.

* fix(runs): keep observer joins from applying creator cancel-on-disconnect

sse_consumer's finally block applied the record's on_disconnect=cancel
policy on ANY consumer's disconnect. The join surfaces (GET /join and
the action-less GET/POST stream join) feed it the existing RunRecord,
so anyone with thread read access — including a runs:read-only PAT —
could cancel a locally-owned running run simply by closing the SSE
connection, without runs:cancel. The policy expresses the creator's
intent for their own connection; an observer's disconnect must never
be read as that intent.

sse_consumer gains apply_on_disconnect (default True). The two join
surfaces pass False; the creating endpoints (thread-scoped and
stateless create-and-stream) keep the creator semantics unchanged.
wait_for_run_completion needs no change: its callers are creator-side
or post-explicit-cancel paths only.

Regression exercises a real generator close — the same machinery
Starlette drives on client disconnect — against the production
sse_consumer: creator stream disconnect cancels, observer join
disconnect does not; a wiring anchor pins both join call sites and the
creator defaults. API.md documents the cancel-capability constraint
(this fix plus the action/strategy gates) in PAT Constraints.

* test(auth): pin the multitask gate behaviorally; state wait invariant

Independent adversarial review of the round-5 fixes found the P1-a
regression only mirror-pinned: the source anchor could be satisfied by
a comment, and deleting the gate from start_run would not fail the
suite. This drives the production start_run directly — a create-only
auth context gets 403 with the exact detail for interrupt, and a
reject request with no cancel permission at all proceeds past the gate
(never a permission 403).

Also documents wait_for_run_completion's creator-side invariant
(every caller is the creating endpoint or post-explicit-cancel) so a
future observer wiring thinks twice before reusing it — the one-caller-
away variant of the observer-disconnect P1.

* docs(changelog): correct the PAT entry's digest and route-policy description

The entry said HMAC digests (the implementation stores SHA-256 digests,
as documented in API.md and pinned by the repository tests) and claimed
the route policy admits 'implemented stateless endpoints' (it admits
the thread/run lifecycle routes, narrowing further by scopes). Also
notes the cancel-capability gate now covering action and multitask
strategies.

* fix(auth): enumerate the PAT runs route policy per implemented subroute

The runs subtree rule was a GET|POST /runs(/.*)? wildcard — it
pre-authorized every current and future subroute under /runs, including
methods the router never implemented (e.g. GET /runs/stream), which is
the same latent default-deny weakening the threads collection rule was
tightened for: a future route added under /runs would become
PAT-reachable without an explicit policy change.

The wildcard is replaced with six segment-precise rules covering exactly
the 14 implemented method+path combinations; the {run_id} slot
necessarily matches any single segment, so the POST-only collection
names (stream, wait, regenerate, edit-regenerate) are excluded from the
GET run-id rule via negative lookahead — no dead method stays
pre-authorized. Behavior for implemented routes is unchanged.

test_pat_runs_policy_admits_exactly_the_mounted_routes derives the
expected set from the mounted thread_runs router instead of a
hand-maintained list: every implemented GET/POST route under /runs must
be admitted, routes in this router outside the subtree stay denied, and
representative unimplemented neighbors are denied — so adding a route
under /runs now fails CI until it is explicitly allowlisted, and a
removed route leaves a dead rule visible. API.md's PAT constraints list
the enumerated routes and drops a feedback mention that belonged to the
stateless /api/runs axis.

* docs(migration): add the 0017 renumbering coordination note to 0017

The PR's migration-coordination comment states each migration file
carries the note; the file did not. Adds it: numbering was generated
against main head 0016 alongside #5078 and #4843; whoever merges first
keeps the slot, the others renumber on rebase (revision/down_revision
plus the bootstrap head assertions).

* fix(auth): pad base62 tokens to a fixed 43-char width

int.from_bytes discards leading zero bytes, so the unpadded encoder
returned a variable-length body — empty for all-zero input, and shorter
than 40 characters for any draw below 62**39 (~1 in 14.5M), leaving
test_generate_pat_token_format probabilistically flaky and the token
body without stable width (review round 6, P3).

_base62 now left-pads with "0" to _base62_width(len(data)) — the exact
integer digit count (62^43 > 2^256 > 62^42, so 43 for 32 bytes). The
format test asserts the exact fixed width instead of a probabilistic
floor, and a new unit test pins the all-zero, leading-zero-byte, and
max-value edges deterministically.
2026-08-29 23:50:45 +08:00
Nefelibata
c6f6a01f56
fix(runtime): prevent IndexError in MemoryStreamBridge._make_gap on empty events buffer (#5047)
* fix(runtime): prevent IndexError in MemoryStreamBridge._make_gap on empty events buffer

* fix(runtime): handle empty stream replay gap bounds across backend and frontend

- Clamp MemoryStreamBridge queue_maxsize at 1 and validate StreamBridgeConfig.queue_maxsize >= 1
- Update StreamGap docstring to clarify None retained bounds
- Allow StreamReplayGapData and parseStreamReplayGap in frontend to accept string | null bounds, safely resuming when bounds are null
- Add backend and frontend regression unit tests for queue clamping and null bounds replay gap

* docs(stream-bridge): bump config_version and document empty buffer replay gap behavior

* docs: document nullable gap bounds and sync helm config_version to 37
2026-08-29 17:21:29 +08:00
Zeren Wang
3b592c2053
feat(harness): subagent receipt citation verification (#5076)
* feat(harness): subagent receipt citation verification

- add receipt citation verification core
- harvest subagent tool receipts at terminal status
- transport subagent receipts and citation verdict via status contract
- verify subagent report citations at task write-back
- render citation verdicts in the delegation ledger

* fix(gateway): strip forged receipt verdicts from the delegations channel

normalize_input() and the checkpoint-state mutation sanitizer only
stripped server-owned metadata from message-shaped values, so an
external caller could submit a delegation entry carrying a forged
receipt_verdict that render_delegation_ledger would present as
runtime-owned execution evidence. Strip receipt_verdict from
caller-supplied delegation entries on both the run-creation and
thread-state mutation paths, with regression coverage for each.

* fix(harness): close silent-pass gaps in the zero-citation heuristic

The action-claim detector missed the most common completion verbs
(fixed/added/tested/changed/...) and had no CJK coverage at all, so
reports like 'I fixed the bug and added tests.' or '我已经创建了文件并运行了测试。'
were treated as claim-free: citation_resolved=True with no ledger
warning. Broaden the verb lists and add a language-independent safety
net: when the run harvested receipts and a nontrivial (>=240 char)
report cites none of them, flag it UNVERIFIED. Short claim-free
confirmations remain a vacuous pass.
2026-08-29 16:56:56 +08:00
ChaseMoon
9c1dd11160
fix(mcp): preserve pooled stdio sessions after task timeouts (#5027) 2026-08-28 10:37:01 +08:00
Serply
4dbfe37ff3
feat(community): add Serply web search tool (#5023)
Add deerflow.community.serply.tools:web_search_tool, a Google SERP
provider for the web_search slot that also covers Google News and Google
Scholar through an optional `vertical` config option. Reads the key from
api_key in config.yaml or SERPLY_API_KEY, clamps max_results to Serply's
1-100 range, and returns the same structured JSON errors as the Serper
and Brave tools.

Register the provider in config.example.yaml, scripts/doctor.py,
scripts/wizard/providers.py, .env.example, backend/docs/CONFIGURATION.md,
the en/zh tools.mdx provider tabs, and tools/AGENTS.md. Tests mock httpx.
2026-08-28 10:30:30 +08:00
Terminator666666
e09b2d48df
fix(uploads): keep deduplicated filenames within the 255-byte limit (#5059)
normalize_filename accepts names up to 255 UTF-8 bytes, but
claim_unique_filename appended _N to the stem without re-checking the
budget. A duplicate at maximum length therefore produced a 257-byte
name, and the write path (open_upload_file_no_symlink ->
normalize_filename) rejected it with ValueError. In the Gateway upload
route that error falls into the generic handler: the whole request
fails with a 500 and files already written in the same batch are rolled
back — including unrelated ones. The same helper backs the Feishu and
DingTalk channel downloads and client-side attachment staging.

Truncate the stem on a UTF-8 code-point boundary when appending the
dedupe tag would exceed 255 bytes, so the result always round-trips
through normalize_filename. Names short enough to fit keep the exact
dedupe shape they had before.

Tests: red on main, green here —
- unit: max-length dedupe stays within the limit and round-trips;
  repeated collisions stay unique; multibyte stems truncate on a
  code-point boundary; short names keep the historical _N shape
- router: a batch with a max-length duplicate now succeeds and keeps
  every file instead of failing with a 500

Co-authored-by: Terminator666666 <Terminator666666@users.noreply.github.com>
2026-08-28 09:16:51 +08:00
georgelichen
24001e80b7
fix(skills): safely tokenize portable allowed-tools patterns (#4984)
* fix(skills): accept portable frontmatter forms

* fix(skills): normalize portable tool names

* Safely preserve parenthesized portable skill tool patterns

Portable Agent Skills declarations such as Bash(tvly *) contain spaces inside a command pattern. Keep those patterns as single literal entries while preserving exact names from the existing YAML-list form, so skill loading no longer fragments valid metadata or rewrites mixed-case MCP tools.

Constraint: DeerFlow's current skill policy matches exact tool names and does not inspect Bash arguments
Constraint: Agent Skills scalar syntax uses whitespace-separated entries with parenthesized command patterns
Rejected: raw.split() | fragments Bash(tvly *) into unrelated tool names
Rejected: normalize YAML-list entries | breaks case-sensitive MCP/runtime tool names
Rejected: map Bash(...) to bash | broadens command-scoped declarations into unrestricted shell access
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Keep Bash(...) entries literal and inactive until DeerFlow has an explicit command-pattern authorization model
Tested: 175 focused parser, validation, installer, review, loader, and tool-policy tests; Ruff check and format; compileall; git diff --check
Not-tested: Full backend suite stopped at pre-existing Windows mode assertion test_runtime_config_store_file_is_owner_only
Related: #4912

* Preserve exact custom tool names in portable skill parsing

Portable scalar frontmatter needs alias normalization for known DeerFlow-compatible names, but generic case conversion corrupts MCP and custom tool identifiers. The tokenizer also treated quoted or escaped parentheses as structural delimiters, rejecting valid command patterns. Preserve unknown names and parse quoted or escaped patterns without broadening Bash(...) into bash.

Constraint: Runtime skill policy uses exact tool-name matching
Constraint: Parenthesized patterns remain literal because argument-level authorization is not implemented
Rejected: Generic CamelCase-to-snake_case for every scalar | rewrites custom/MCP names
Rejected: Map Bash(...) to bash | broadens command-scoped declarations into unrestricted shell access
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Add an explicit alias before supporting another portable tool name; keep command-pattern authorization separate
Tested: 225 skills tests passed, 1 skipped; Ruff check; Ruff format --check; compileall; git diff --check
Not-tested: Full backend suite remains affected by unrelated Windows permissions/path and missing Lark CLI tests
Related: #4984; #4912

* Preserve case-sensitive exact tool authorities

Case-folding a scalar declaration before alias lookup can turn literal write into write_file, substituting a different runtime authority. Keep exact portable spellings as aliases and preserve lowercase, custom, and MCP names; strengthen activation coverage for spaced Bash patterns and command fragments.

Constraint: Runtime skill policy uses exact tool-name matching
Constraint: Bash(...) remains literal and inactive because command-pattern authorization is not implemented
Rejected: Case-insensitive alias lookup | maps lowercase runtime tools onto built-in authorities
Rejected: Broaden the parser into command-pattern authorization | outside this PR's scope
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Add aliases only for documented portable spellings; preserve all other scalar names verbatim
Tested: 226 skills tests passed, 1 skipped; Ruff check; Ruff format --check; compileall; git diff --check
Not-tested: Full backend suite remains affected by unrelated Windows permissions/path and missing Lark CLI tests; GitNexus index refresh remains stale
Related: #4984; #5016297602

* Support portable Glob and Grep skill aliases

Portable Agent Skills commonly declare Glob and Grep, but DeerFlow exposes the runtime tools as glob and grep. Add explicit exact-spelling aliases and activation coverage so imported skills retain search-tool access without broad normalization.

Constraint: Runtime skill policy uses exact tool-name matching
Constraint: Alias conversion is limited to documented portable spellings
Rejected: Case-fold all scalar names | can substitute custom or MCP authorities
Rejected: Map arbitrary names by convention | breaks exact runtime compatibility
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Keep the alias table explicit and preserve unknown scalar names verbatim
Tested: 228 skills tests passed, 1 skipped; Ruff check; Ruff format --check; compileall; git diff --check
Not-tested: Full backend suite has unrelated environment failures on Windows; GitNexus index reports stale line mappings
Related: #4984; #5026257899

---------

Co-authored-by: kriptoburak <kriptoburak@users.noreply.github.com>
2026-08-28 08:58:59 +08:00
陈志谦
9e2c1be697
fix(sandbox): harden local Docker sandbox containers and port binding (#4986)
* fix(sandbox): harden local Docker sandbox containers and port binding

Root causes (security audit SBX-1/SBX-2) in the local container backend:
- _resolve_docker_bind_host published sandbox ports on 0.0.0.0 whenever
  DEER_FLOW_SANDBOX_HOST was non-loopback (docker-compose defaults to
  host.docker.internal), exposing the unauthenticated /v1/shell/* exec
  API on every host interface.
- _start_container ran every sandbox with seccomp=unconfined and no
  capability, privilege-escalation, or resource limits, so untrusted
  model-authored code could exhaust the host, escalate privileges, and
  reach internal networks / cloud metadata endpoints directly.

Hardening changes and defaults:
- Port binding: non-loopback sandbox hosts now bind the Docker default
  bridge gateway instead of 0.0.0.0, discovered dynamically via
  `docker network inspect bridge` with a static 172.17.0.1 fallback.
  host.docker.internal resolves to that gateway through host-gateway,
  so DooD gateways and the Docker host still reach the sandbox while
  external interfaces no longer see the port.
  DEER_FLOW_SANDBOX_BIND_HOST=0.0.0.0 restores the legacy broad bind.
- seccomp=unconfined is no longer unconditional: sandboxes run with
  Docker's default seccomp profile; opt back in with
  DEER_FLOW_SANDBOX_SECCOMP_UNCONFINED=1, only when the sandbox image
  is verified to require syscalls the default profile blocks.
- Add --cap-drop=ALL and --security-opt no-new-privileges (Docker only;
  the Apple Container CLI does not support these flags).
- Bounded resources with env overrides: --memory 2g
  (DEER_FLOW_SANDBOX_MEMORY), --cpus 2 (DEER_FLOW_SANDBOX_CPUS),
  --pids-limit 512 (DEER_FLOW_SANDBOX_PIDS_LIMIT); each also accepts
  "0"/"none" to disable the limit.
- No --user is forced by default (the default AIO sandbox image's user
  is upstream-controlled and unverified), but
  DEER_FLOW_SANDBOX_CONTAINER_USER passes one through for deployments
  that know their image.
- DEER_FLOW_SANDBOX_NETWORK passes --network so sandboxes can be
  attached to a dedicated egress-controlled network; default networking
  is unchanged.

backend/docs/CONFIGURATION.md documents the new bind behavior and every
override; tests cover each default and escape hatch.

* fix(sandbox): follow host-gateway mapping for binds; keep image-required seccomp default

Review follow-ups on the hardening change:

- Bind: resolve the sandbox host itself and bind that address, instead of
  assuming the default bridge IPv4. host.docker.internal follows the
  daemon host-gateway-ip mapping (customizable, possibly IPv6), so the
  resolved address is exactly where the gateway connects — the published
  port and advertised URL always match. IPv6 is bracketed for docker -p,
  zone ids stripped, wildcard resolutions ignored; unresolved hosts fall
  back to the bridge gateway with a warning pointing at
  DEER_FLOW_SANDBOX_BIND_HOST.
- seccomp: the shipped AIO image needs seccomp=unconfined for its
  Chromium browser (upstream quick-start always passes it; the upstream
  FAQ documents the browser failing under Docker default profile), so
  that option returns as the default. Tightening stays possible via
  DEER_FLOW_SANDBOX_SECCOMP_PROFILE=<path to a restricted,
  Chromium-compatible profile> or DEER_FLOW_SANDBOX_SECCOMP_UNCONFINED=0
  for images verified to work with Docker's default profile.
- cap-drop/no-new-privileges and the resource limits are unchanged.
- Tests updated for both behaviors; 37 pass.

* fix(sandbox): bracket bare IPv6 bind overrides; state seccomp default accurately

DEER_FLOW_SANDBOX_BIND_HOST was returned verbatim, so a bare IPv6 literal
like fd00::1 produced an invalid publish spec (fd00::1:port:8080); Docker
requires the bracketed form. Normalize raw and already-bracketed IPv6
literals (IPv4/hostnames untouched), with resolver-level and argv-level
tests covering the explicit IPv6 override.

The CONFIGURATION.md overview claimed Docker's default seccomp profile
stays active, contradicting the seccomp=unconfined default the table (and
the code) actually ship for the Chromium-based image; spell out the relaxed
default and where to change it.

* style(sandbox): apply ruff format to local_backend

* fix(sandbox): reject host networking, force builtin seccomp opt-out, resolve hostname binds

Review follow-up on #4986 (willem-bd):

- P1: DEER_FLOW_SANDBOX_NETWORK=host (and container:<name>) now raise a
  RuntimeError at start instead of silently voiding the hardened port
  bind — Docker discards -p/--publish in host mode and shares the
  network namespace for container:<name>, which would re-expose the
  unauthenticated exec API on the host's interfaces. Two regression
  tests cover both rejections.
- P2: the seccomp opt-out now passes seccomp=builtin explicitly instead
  of omitting the option, so a daemon configured with an unconfined or
  custom default cannot weaken the documented opt-out; the test asserts
  the flag.
- P2: hostname values in DEER_FLOW_SANDBOX_BIND_HOST resolve to an
  address before use (Docker publish specs require an IP literal as the
  host part, so host.docker.internal previously produced an invalid
  spec that prevented every sandbox from starting); unresolvable names
  raise a clear configuration error. Tests cover resolution and
  rejection; CONFIGURATION.md updated for all three behaviors.

43/43 pass in tests/test_aio_sandbox_local_backend.py; ruff check +
format clean.

* fix(sandbox): reject DEER_FLOW_SANDBOX_NETWORK=none (loopback-only, breaks published API port)

* fix(sandbox): validate the effective Docker network target; normalize IPv6 sandbox hosts once

name=host / name=none dodge raw-string checks but attach like the bare
words; strip name= prefixes and validate the effective target (network IDs
keep passing). Bracketed IPv6 sandbox hosts now resolve for the bind and
bare IPv6 hosts produce bracketed URL authorities — both input forms give
identical bind and URL addresses.

* fix(sandbox): parse the full Docker network long syntax before validating

Docker accepts comma-separated key=value fields in any order (name=, gw-priority=,
alias=, ...); a name=host field hides the host network behind surrounding fields.
Parse the CSV and validate the parsed name= target (last occurrence wins, fields
lowercased, mirroring opts/network.go); no-name values fall through like Docker's
own rejection.

* fix(sandbox): keep CHOWN/SETUID/SETGID through cap-drop=ALL for the default image

The shipped image's entrypoint starts as root, creates the gem user,
chowns /opt/jupyter and drops to that user via su; without those three
capabilities the set -e script dies before the readiness endpoint exists.
no-new-privileges stays (it blocks gaining privileges via exec, not using
the added caps). Adds a docker-gated real-image startup smoke test.

* fix(sandbox): let pre-initialized non-root images drop the startup capabilities

The CHOWN/SETUID/SETGID re-add only exists for the shipped image's root
entrypoint handoff. A custom image that never runs as root gets an explicit
opt-out (DEER_FLOW_SANDBOX_IMAGE_STARTUP_CAPS=0) so those capabilities are
not left available to sandboxed code (chown on bind mounts, UID/GID
impersonation).

* test(sandbox): gate the real-image smoke test behind the live marker

The default offline suite (make test = -m 'not live') must not depend on a
third-party registry: mark the smoke test live, probe the daemon inside the
test body (never at collection time), and allow pinning the image reference
via DEER_FLOW_SANDBOX_SMOKE_IMAGE for a dedicated integration job.

* test/docs: isolate DEER_FLOW_SANDBOX_IMAGE_STARTUP_CAPS in tests; add table row; split custom-image guidance

_clear_hardening_env now clears the new knob so a developer shell or .env
preset cannot flip the default-path tests. CONFIGURATION.md gains the table
row, and the custom-image guidance becomes its own paragraph with the
no-new-privileges scope stated correctly (it does not mitigate the retained
CAP_SETUID/SETGID risk).

* test(sandbox): make the live smoke test diagnosable

300s readiness budget (cold pull + cold start must not be conflated with
broken capabilities) and dump the container's last 40 log lines on failure
so the next live run tells us whether the capability set is incomplete
(chown/useradd/su errors) or the services are merely slow.

* test(ci): align the smoke test with the 60s provider deadline; add a dedicated live smoke workflow

Single-source the readiness deadline as SANDBOX_LOCAL_PROVIDER_READY_TIMEOUT
(used by both provider paths and the smoke test) so the validation cannot
drift from the production contract again. New sandbox-image-smoke.yml runs
the live test on a dedicated job, with the image reference pinnable via the
SANDBOX_SMOKE_IMAGE repository variable (digest resolved and recorded in the
job summary when falling back to :latest).

* test(sandbox): pull the failing program's own logs on smoke failure

supervisord only surfaces exit codes in docker logs; nginx's stderr lands in
files inside the container. Dump supervisor program logs, nginx -t, and the
nginx error log on failure so the next run names the exact broken line.

* ci(sandbox): export an immutable repo@digest reference for the smoke run

docker pull once on the runner platform, resolve RepoDigests[0], and pass
that immutable reference to the test via GITHUB_ENV — the recorded and
executed images can no longer diverge when the tag moves, and platform
selection is left to the daemon instead of jq over the manifest index.

* fix(sandbox): add DAC_OVERRIDE — the root nginx master writes gem-owned logs

The image's root nginx master opens /var/log/nginx/{access,error}.log,
which belong to the gem user, for the container's lifetime; without
CAP_DAC_OVERRIDE it dies with 'open() failed (13: Permission denied)' on
every start (FATAL under supervisord) and readiness never arrives. Four
capabilities now: CHOWN/SETUID/SETGID for the entrypoint handoff plus this
runtime log-write need.
2026-08-27 22:53:47 +08:00
yong
846c716523
feat(search): add Tencent Cloud WSA provider (#5057)
* feat(search): add Tencent Cloud WSA provider

* docs: restore README to upstream

* docs: remove README changes from WSA provider PR

* fix(doctor): validate Tencent WSA API key
2026-08-27 18:12:05 +08:00
青榆牧
a94b2d8897
feat(mcp): map request-scoped secrets to MCP HTTP/SSE headers (#5010)
* feat(mcp): map request-scoped secrets to HTTP/SSE headers

`user_auth` binds a credential to a configured DeerFlow user, so a caller
that picks the credential per request — a multi-tenant gateway, a per-run
API key, one shared MCP server fronting several environments — had to
register one MCP server entry per credential.

Add a declarative `mcpServers.<server>.headers_from_context` block mapping
HTTP header names to keys of the run request's `config.context.secrets`
carrier. A new built-in interceptor resolves the mapping on every tool call
and rewrites those headers, mirroring `user_scoped_auth`. The config file
stores names only, never a credential, so the Gateway returns the block
unmasked.

Registered after OAuth and `user_auth` in the interceptor chain: the later
interceptor runs closer to the transport, and the value chosen for this one
request is the most specific, so it wins. Fail-closed by default — a mapped
key missing from the request raises a `ToolException` naming only that key,
because falling back to the server's discovery credential would send one
tenant's call under another tenant's authority. `on_missing: "passthrough"`
opts out.

Durable background tasks are excluded: `McpTaskToolCaller` drives status and
cancel polls after the Agent run ends, where no run context exists, so the
fail-closed interceptor would deny every poll. Those calls keep using
server-level credentials, and a server declaring both `headers_from_context`
and `task_toolsets` now logs a warning.

Also corrects the custom-interceptor example in docs/MCP_SERVER.md (and the
matching claim in skills/AGENTS.md), which read request secrets from
`langgraph.config.get_config()["context"]`. That key is `None` inside a tool
call — the run context rides the LangGraph runtime, not the RunnableConfig
propagated to child runnables — so interceptors written from that example
never saw a value. The example now reads `request.runtime`, and
tests/test_mcp_context_headers.py pins LangGraph's runtime-injection rule by
driving a real langchain-mcp-adapters tool through a real graph with the
ambient-runtime fallback disabled.

Closes #5005

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

* fix(mcp): resolve credential headers case-insensitively, carry them on durable submit

Review follow-ups on `headers_from_context`.

HTTP field names are case-insensitive, but every dict on the path to the wire
is not: `build_server_params` copies the operator's static `headers` spelling
verbatim, and langchain-mcp-adapters merges interceptor overrides into the
connection with a plain `{**connection_headers, **override_headers}` splat. A
static `authorization` and an injected `Authorization` therefore both reached
httpx as separate field lines, and a server reading the field with a
single-value accessor got the static discovery credential — inverting the
documented `headers` < `oauth` < `user_auth` < `headers_from_context`
precedence and running a per-request call under the shared credential.

Normalizing inside the interceptor cannot fix that on its own: the adapter
builds the request with `headers=None`, so an interceptor never sees the
connection's static headers and cannot displace them however it spells its own
key. A new `mcp/headers.py::apply_header_overrides` therefore drops any key
differing only in case and emits the spelling the connection already uses.
Applied to `headers_from_context`, `user_auth`, the OAuth interceptor, the
OAuth discovery-header write, and the durable-task connection merge, which all
carried the same collision. `headers_from_context.headers` now also rejects one
header mapped under two spellings at config load, in both the harness model and
the Gateway mirror.

Durable submit now carries the mapped headers, as docs/MCP_SERVER.md already
promised. `McpTaskToolCaller` disabled the interceptor for the whole caller, but
that caller serves submit as well as the polls, and submit is awaited inline
inside the Agent's tool call — where the run's LangGraph runtime is still the
ambient contextvar, so no secret has to be threaded through `TaskSubmitRequest`
or reach durable storage. The caller builds one chain and keeps a second view of
it without the context-headers interceptor; `call_tool` takes
`request_scoped_headers`, set only by `OrdinaryMcpTaskDriver.submit`. Status and
cancel keep server-level credentials, so background polls still cannot fail
closed, and the startup warning now describes the half it actually covers.

`_merge_preserving_secrets` restores masked extras inside `headers_from_context`
instead of writing the `***` sentinel back over the stored value, matching the
treatment `user_auth` extras and server-level extras already get; extras a PUT
omits carry over as well, while the declared mapping still replaces verbatim so
a round trip can remove an entry. `extra="allow"` plus name-based sensitivity
detection means the usual casualty is a name-valued key such as `tokenHeader`,
not only a credential.

The existing override test seeded the static header onto `request.headers`,
which production never does, so it modelled a merge that really happens one
layer down; the new tests drive a real adapter tool through a real connection
and assert on the headers the session is opened with, and the durable-submit
test runs through a real tool node with no runtime patching.

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

* fix(mcp): reject case-insensitive duplicate static header names

* fix(mcp): preserve omitted headers_from_context fields on partial updates

---------

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-08-27 10:42:42 +08:00
Hyeonsang Cho
cb24bc2699
perf(middleware): stop checkpointing view_image base64 payloads (#5014)
ViewImageMiddleware injected the viewed-image message from before_model and
removed it again from after_model. before_model, model, and after_model are
separate graph nodes, so every view_image turn cost two extra nodes and two
state writes, and up to 20MB of base64 sat in two checkpoints for the duration
of the model call. A run interrupted in that window (user cancel, restart)
stranded the payload in history for good.

Inject from wrap_model_call instead, so the message lives only in
ModelRequest.messages and is never returned as a state update:

- before_model/after_model (and the async pair) are replaced by
  wrap_model_call/awrap_model_call; _remove_image_context_messages and its
  RemoveMessage bookkeeping go with them. The async hook keeps the existing
  asyncio.to_thread offload for the file read and base64 encode.
- _should_inject_image_message gates on request.messages rather than state, so
  the decision is made against what the model will actually see.
- _inject sweeps this middleware's own message out of the request before
  rebuilding it. Dropping after_model also drops the cleanup it did on every
  call, so without the sweep a payload stranded by an older interrupted run
  would ride along in every later request for the life of the thread. Matching
  requires both the reserved id prefix and the server-owned marker, and Gateway
  strips that marker from client input, so a user message is never dropped.

Chain position is unchanged, and wrap_model_call nests first-registered
outermost, so TokenBudgetMiddleware still sees the image message and enforces
the input budget against it.

Checkpoint rows that already hold a stranded payload keep it on disk. It is
inert -- never sent to a provider, and strip_data_url_image_blocks keeps it off
the wire -- and reclaiming it would mean keeping the node this change removes.

tests/test_view_image_middleware.py is rewritten around the new hook (43
tests): sync/async at unit and graph level, the stranded sweep, and the
client-message protection. Docs: middleware chain entry 23, Vision Support, the
middleware-execution-flow hook matrix and diagrams, and the
strip_data_url_image_blocks docstring.
2026-08-27 09:12:37 +08:00
green3sf
788a890bd0
fix(tui): preserve transcript scroll position (#4975)
* fix(tui): preserve transcript scroll position

* test(tui): cover output during queued paging
2026-08-25 20:15:08 +08:00
ChaseMoon
287f890c66
fix(mcp): reconnect ordinary stdio tools after disconnect (#5018) 2026-08-25 20:10:58 +08:00
wutongyuonce
013dca6352
fix(skills): refresh user storage after config reload (#4972)
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-08-25 19:46:04 +08:00
zhangwei139623
431892e16a
feat(knowledge): add read-only RAGFlow retrieval (#4955)
* feat(knowledge): add read-only RAGFlow retrieval

* test(knowledge): cover RAGFlow retrieval contracts

* docs(knowledge): document retrieval-only RAGFlow setup

* refactor(knowledge): move RAGFlow settings to tool config

* fix(ragflow): bind retrieval to configured datasets

* docs(ragflow): record validated response versions

* fix(ragflow): bind retrieval by dataset id

* fix(ragflow): search all datasets by default

* fix(ragflow): retrieve mixed embeddings by group

* docs(ragflow): keep feature details out of agent guides

* docs(ragflow): remove agent guide changes

* docs(ragflow): remove root readme changes

* fix(ragflow): handle unresolved and empty datasets

* fix(ragflow): harden dataset scope and errors
2026-08-25 16:57:55 +08:00
georgelichen
1c219b6864
fix(sandbox): scope MSYS path conversion exclusions (#5003)
* Preserve Windows CLI compatibility for local sandbox commands

MSYS path conversion must remain disabled for DeerFlow virtual paths, but applying a blanket environment override to every POSIX command breaks host-native CLI shims on Windows. Limit MSYS argument-conversion exclusions to safe non-root virtual path prefixes, omit values that would broaden the exclusion pattern, and document the contract.

Constraint: Preserve the virtual-path protection introduced by #2765/#2766
Rejected: Disable MSYS conversion for every command | breaks Windows CLI shims
Rejected: Toggle blanket conversion only for commands containing virtual paths | host CLIs can receive virtual-path arguments and still need normal conversion for their own paths
Confidence: high
Scope-risk: moderate
Reversibility: clean
Directive: Keep regression coverage for virtual-path arguments, root mounts, and host-native CLI launchers
Tested: test_local_sandbox_encoding.py (12 passed); related sandbox suite (197 passed, 8 skipped, 7 failures matching origin/main); ruff check; ruff format --check; git diff --check; direct LocalSandbox CLI and virtual-path smoke tests
Not-tested: Full offline suite completion; stopped at 6% after unrelated Windows and optional-runtime failures
Related: #2765
Related: #2766

* Keep MSYS regression tests portable across CI operating systems

The Windows-shell environment tests patched os.name to nt while mounting Windows-specific paths. On Linux and macOS, pathlib then attempted to construct WindowsPath during command resolution or output masking, so the backend merge gate failed before exercising the environment contract. Stub the exclusion boundary in execute-command tests and retain mapping-specific filtering coverage in the helper test.

Constraint: Backend unit tests run on Linux, while the behavior under test is Windows-only
Rejected: Skip the tests outside Windows | would remove CI coverage of the environment contract
Rejected: Patch pathlib internals | couples tests to implementation details and hides the platform boundary
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Keep OS-specific subprocess assertions independent from host-path resolution
Tested: test_local_sandbox_encoding.py (12 passed); ruff check; ruff format --check; git diff --check
Not-tested: Linux runner execution locally because Docker Desktop is unavailable and WSL cannot access this linked worktree
Related: #5003
Related: https://github.com/bytedance/deer-flow/pullrequestreview-5013380238
2026-08-25 15:20:31 +08:00
Xinmin Zeng
943d148e5e
feat(threads): distinguish branched conversations (#4983)
* feat(threads): number branched conversation titles

* feat(frontend): show branch lineage in recent chats

* fix(threads): allocate unique branch suffixes

* fix(threads): preserve suffix and filter semantics
2026-08-25 08:29:18 +08:00
Beautyl0ve
e8410cebfc
fix(gateway): preserve exact history attribution beyond event page limits (#4953)
* fix(gateway): preserve exact history run attribution

* fix(gateway): make history migration authoritative

* docs(runtime): keep history contract within guidance budget

* fix(runtime): fence final run duration write
2026-08-25 08:22:57 +08:00
Aari
ff0a6768c2
feat(subagents): add unified capacity and durable batch execution (#4998)
* feat(subagents): add capacity controls and durable batches

* fix(helm): sync subagent config schema version

* fix(subagents): preserve batch history without worker

* fix(subagents): support explicit factory runtimes

* fix: address durable batch review findings
2026-08-25 07:49:38 +08:00
georgelichen
641a4147e7
fix(skills): parse Responses API content blocks in moderation scanner (#4936)
* Fix skill moderation parsing for Responses API content blocks

Normalize LangChain Responses API text blocks before parsing the security moderation decision, while preserving the existing fail-closed behavior for unavailable or invalid moderation results. Add regression coverage for mixed content blocks and document the compatibility boundary.

Constraint: Responses API AIMessage content is list-shaped while Chat Completions content is string-shaped
Rejected: Disable security scanning | would weaken the skill write safety boundary
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Keep moderation parsing provider-format tolerant without including reasoning or tool blocks in the decision payload
Tested: 27 security scanner tests; ruff check; ruff format check
Not-tested: Live moderation request against the configured external endpoint

* Reuse shared LLM response text normalization

Route skill moderation responses through the existing provider-format normalizer so only text and output_text blocks participate in JSON parsing. Strengthen regression coverage with reasoning and tool blocks that contain misleading text fields.\n\nConstraint: Responses API content is shared across multiple harness consumers\nRejected: Keep a private normalizer | duplicated provider-shape policy diverges and can reintroduce reasoning-block contamination\nConfidence: high\nScope-risk: narrow\nReversibility: clean\nDirective: Extend the shared normalizer when a new provider content shape is verified; do not add divergent local parsers\nTested: 118 related backend tests; regression test red against the previous parser; Ruff check and format check\nNot-tested: Live GitHub CLA status refresh

* Restore trusted external skill package loading

Skill discovery follows one-level package-directory symlinks, but activation path validation rejected the resolved external path. Restore that compatibility for configured custom-skill category roots while keeping file-level symlinks and deeper escapes blocked. Add regression coverage for local and user-scoped storage plus slash activation, and document the boundary.

Constraint: Existing skill discovery follows directory symlinks and operator-managed external packages must remain loadable

Rejected: Allow arbitrary resolved paths | would weaken the skill path trust boundary

Confidence: high

Scope-risk: moderate

Directive: Keep the final SKILL.md file symlink-free and preserve one-level category-root validation

Tested: 79 targeted skill storage, loader, slash activation, and user-scoped tests passed; Ruff check and format check passed; GitNexus staged change detection reported low risk

Not-tested: Real symlink activation on this Windows host lacks SeCreateSymbolicLinkPrivilege and is skipped

Related: Skill projection copies sources into sandbox-visible views

* Exercise real filesystem symlink boundaries in skill storage tests

Replace global Path.resolve/is_symlink mocks with real directory and file symlinks, preserving the Windows privilege skip. Add regression coverage for deeper custom-root escapes and symlinks under non-custom categories so the one-level allowance remains explicit.

Constraint: Symlink creation requires SeCreateSymbolicLinkPrivilege on some Windows runners
Rejected: Keep global path-method mocks | they validate the mock behavior rather than filesystem semantics
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Keep security-boundary tests on real filesystem primitives; skip only when the runner lacks symlink privilege
Tested: 76 targeted loader/storage/slash tests; Ruff check; Ruff format check
Not-tested: Windows symlink-enabled execution on this host
Related: #4936

* Pin the actual nested symlink escape boundary

Place the second symlink below a real custom package directory so the test reaches the one-level relative-parent guard instead of returning early on a non-symlink parent. Keep the public-category rejection coverage unchanged.

Constraint: The security boundary depends on both symlink depth and category root
Rejected: Link the outer package directory directly | the parent is not a symlink at validation time, so the depth guard is never evaluated
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Keep this regression tied to the exact relative_parent.parts depth check
Tested: Targeted storage, loader, and slash suites; GitNexus staged detection
Not-tested: Symlink-enabled execution on this Windows host
Related: #4936

* Make the nested symlink regression reach the depth guard

The test now validates the SKILL.md directly through the nested symlink, so the symlink is the immediate parent and the relative-parent depth check is executed.

Constraint: Windows test execution may skip when symlink privilege is unavailable
Rejected: Keep the extra nested path segment | it bypasses the symlink-depth guard through an early return
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Mutation tests must fail when the depth restriction is removed
Tested: Targeted test (skipped on this Windows host without symlink privilege); Ruff check and format check
Not-tested: Real symlink execution on Windows; Linux CI will exercise the case
Related: #4936

* Keep sandbox projections fresh for linked external skill packages

The storage layer intentionally accepts one-level custom package-directory symlinks, but projection freshness previously hashed only the link inode. Follow the permitted target tree during custom and legacy source-signature scans so edits to SKILL.md, scripts, references, or assets trigger a rebuild before sandbox use.

Constraint: Preserve the existing one-level custom/legacy symlink boundary and do not follow public, integration, nested, or file symlinks

Rejected: Invalidate projections only from /api/skills/reload | sandbox acquisition must also detect edits made directly in external targets

Confidence: high

Scope-risk: narrow

Reversibility: clean

Directive: Keep target-tree traversal limited to the storage paths that explicitly permit external package-directory links

Tested: 77 projection, user-scoped storage, and lifecycle tests passed; Ruff check and format check passed; git diff --check passed; GitNexus staged detection reported low risk

Not-tested: Real external symlink execution on this Windows host without SeCreateSymbolicLinkPrivilege; existing tests skip that platform limitation
2026-08-24 21:27:43 +08:00
hataa
cc6a2657e7
feat(authz): enforce sandbox:execute authorization at sandbox acquisition (#4063 Phase 3) (#4911)
Sandbox is an execution environment, not a named resource: multiple tools
(bash, read_file, write_file, glob, grep, ...) depend on it, all funneled
through ensure_sandbox_initialized / ensure_sandbox_initialized_async. Gate
the single acquisition entry point (single source of truth) instead of
maintaining a sandbox-tool-name set in middleware:

- authorize_sandbox_execution helper (authz/sandbox_authz.py) checks
  authorize("sandbox", "execute", target="*") — a binary judgment
  (can this role use the sandbox at all); RBAC allow:"*"/true permits,
  allow:[]/false denies.
- lazy path: ensure_sandbox_initialized (+ async) calls the gate before
  provider.acquire.
- eager path: SandboxMiddleware.before_agent / abefore_agent call the gate
  before _acquire_sandbox.
- deny raises SandboxAuthorizationError (SandboxError subclass) which
  propagates through tool execution as a friendly ToolMessage (RFC §9:
  'not a crash').
- authorization.enabled: false is a no-op everywhere; provider errors
  follow fail_closed (deny) / fail_open (allow).

12 tests in tests/test_sandbox_authorization.py cover disabled/allow/deny/
deny-via-bool/no-policy-unrestricted/provider-error-fail-closed/open/
internal-caller + ensure_sandbox_initialized deny (never acquires) and
allow (acquires) integration paths.
2026-08-24 16:32:06 +08:00
ChaseMoon
cff8b74ec3
fix(harness): offload ACP workspace creation from event loop (#4965)
* fix(harness): offload ACP workspace creation from event loop

* fix(harness): complete ACP event-loop offload
2026-08-24 16:21:01 +08:00
Aari
645ca08f16
fix(scheduler): enqueue busy scheduled task runs (#4918)
* fix(frontend): clarify reuse-thread scheduling behavior

* fix(scheduler): enqueue overlapping scheduled runs

* fix(scheduler): preserve queue lease fencing

* fix(scheduler): close queue concurrency races

* fix(scheduler): harden queue timeout bookkeeping

* fix(scheduler): preserve manual failure schedule

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-08-24 15:38:32 +08:00
Tsai Yuan
336cd3acc4
fix(sandbox): reject non-finite ownership timings (#4960) 2026-08-24 15:27:33 +08:00
Aari
1aa813ddb3
feat: add managed subagents and delegation scopes (#4887)
* feat: manage and scope subagents

* fix: address subagent review feedback

* fix: address managed subagent review feedback

* fix: harden subagent settings semantics

* fix: harden managed subagent cache invalidation

* fix: reuse assembled lead agent inputs

* fix: migrate managed subagent definitions

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-08-24 11:04:23 +08:00
simon
ea9b70148e
fix(clarification): drop sibling tool calls before interrupt (#4908)
* fix(clarification): drop sibling tool calls before interrupt

- Rewrite the AIMessage in ClarificationMiddleware.after_model so a
  parallel bash/write_file cannot run before the user answers
- langchain return_direct only inspects the last ToolMessage; siblings
  both execute and can keep the agent loop alive
- Skip the rewrite when disable_clarification is set
- Prompt and tool docs: do not call other tools in the same turn

Fixes #4906

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(clarification): enhance sibling tool call handling in ClarificationMiddleware

- Update ClarificationMiddleware to ensure sibling tool calls are dropped when `ask_clarification` is invoked, preventing unintended execution before user input.
- Modify documentation to clarify that the `return_direct` router now inspects all client-side tool calls of the last AIMessage, ensuring proper routing behavior.
- Introduce a new integration test to validate that sibling tools do not execute when `ask_clarification` is present in the same turn.

This change addresses potential issues with tool execution order and improves the overall reliability of the middleware.

Fixes #4906

* fix(clarification): enhance tool call filtering in ClarificationMiddleware

- Update _filter_content_tool_use to handle Gemini-style function_call blocks by matching on name when no id is present, ensuring proper filtering of tool calls.
- Modify ClarificationMiddleware to maintain sibling tool call integrity by dropping unnecessary blocks, improving the clarity of the AIMessage content.
- Add a new test to validate the correct stripping of idless function call content blocks, ensuring that sibling tool calls do not execute prematurely.

This change improves the robustness of the middleware and addresses potential execution order issues.

Fixes #4906

* fix(clarification): drop siblings when ask_clarification is malformed

LangChain parks invalid args on invalid_tool_calls independently, so a
valid sibling would otherwise still execute before the user answers.

Co-authored-by: Cursor <cursoragent@cursor.com>

---------

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-08-24 07:37:35 +08:00
Aleksandr Sapronov
613b90b0e6
feat(scheduler): make scheduled-run recursion_limit configurable (#4848)
Adds scheduler.recursion_limit to config.yaml (default 1000, clamped by
max_recursion_limit) so scheduled background runs can use a different
recursion limit than the web UI. The value is read at dispatch time, so
a YAML edit applies to the next scheduled run without a Gateway restart.

Also logs a warning when the resolver falls back to the default or
clamps the configured value.
2026-08-24 07:09:08 +08:00
muguo
917fe595fc
feat(sandbox): add OpenSandbox provider (#4877) 2026-08-23 15:46:10 +08:00
Zeren Wang
4e35f0d1d4
feat(harness): deterministic tool receipts with model-visible ledger (RFC #4651, layer 1) (#4659)
* feat(harness): add deterministic tool receipts with model-visible ledger

Stamp an immutable per-call fact record (tool name, status, args/output
hashes, byte count, timestamp) onto every tool result via a new
ToolReceiptMiddleware, and inject the derived receipt ledger (r1..rN)
into the model context so subagent reports can cite executed actions.

- tool_receipt.py: receipt core (make/extract/render), newest-first
  budget eviction, ids derived from the append-only message stream
- ToolReceiptMiddleware: stamps ToolMessages directly or inside
  Command-wrapped results; hidden ledger injection mirrors
  DurableContextMiddleware; sits between ToolProgress and
  ToolErrorHandling with a build-time ordering guard
- config: new verification section (receipts on, judge off), config
  version 32 -> 33 with example/helm/docs updates

* feat(harness): split receipt rendering from stamping; address PR review

Review fixes (PR #4659):
- output_sha256 now uses sort_keys=True for structured content, matching
  the order-invariant args fingerprint
- stamping failures log at warning (silent ledger gaps would corrupt
  citations); tool execution remains never blocked
- _insert_after_leading_system_messages extracted to shared public
  message_utils.insert_after_leading_system_messages; both middlewares
  depend on it instead of a private cross-module helper
- code comments in English

RFC #4651 revision-2 alignment:
- receipts_render_mode config ('always' | 'delegation_only'): subagent
  chains always render the ledger (citations are produced there); the
  lead chain renders only while processing subagent results, removing
  the always-on token tax from ordinary turns
- receipts gain bounded args_preview/output_preview (<=200 chars, tail
  for output) so later typed claim bindings (tests_passed) can anchor
  to a specific recorded execution

* docs(harness): state receipt freshness caveat and vocabulary layering in module docstring

* merge: upstream/main — resolve AGENTS.md split, bump config_version to 34, drop unused receipt previews

- backend/AGENTS.md: take upstream's slimmed root guidance (#4799); move the
  ToolReceiptMiddleware chain entry into agents/middlewares/AGENTS.md and the
  verification.* hot-reload mention into config/AGENTS.md
- config.example.yaml + helm values/README: config_version 33 -> 34 so existing
  v33 configs get the outdated-config prompt (review: willem-bd)
- tool_receipt.py: drop args_preview/output_preview — no Layer 1 consumer reads
  them; re-add with the Layer 2 claim-binding consumer (review: willem-bd)

* docs(harness): cover receipt id renumbering after compaction in module docstring

Positional display ids are stable only while history is append-only;
compaction drops ToolMessages and the survivors renumber, so Layer 2
citation verification must resolve [rN] against the ledger as of the
citing turn (review: willem-bd, doc-only).

* chore(config): bump config_version to 35

main reached 34 via #4780 without the verification section; publishing
the new schema at the same number would silently skip the outdated-config
prompt for configs synced from main in that window (review: willem-bd).

* fix(skills): restore errno import dropped upstream in #4830

upstream/main adf6c422 uses errno.ENOTDIR in the drift guard but removed
the import, so the PR merge ref fails lint-backend (F821).

* fix(harness): harden tool receipts against forgery and turn-scope delegation_only

Address willem-bd's pre-merge review on #4659:

1. Untrusted receipt metadata: the gateway now strips the server-owned
   deerflow_tool_receipt key from external input messages; stamping always
   overwrites any tool-supplied value instead of preserving it; and
   extract_tool_receipts validates persisted receipt shapes (required typed
   fields, unknown keys ignored) so malformed entries are skipped instead of
   crashing render or passing as runtime-stamped evidence.

2. delegation_only no longer sticks on: _should_render now scopes the
   subagent_status scan to the current turn (messages after the latest
   genuine user message), so an old completed delegation stops rendering the
   ledger on later ordinary turns. The genuine-user predicate moves to
   message_utils.is_genuine_user_message, shared with input sanitization.

* fix(harness): stamp receipts outside short-circuiting tool middlewares

Address willem-bd's review on #4659: ToolReceiptMiddleware was registered
inside Guardrail/SandboxAudit/ReadBeforeWrite/ToolProgress, each of which
can return a ToolMessage without invoking its handler — blocked calls
(e.g. a read-before-write-denied write_file) never got a receipt, silently
gapping the ledger on a default-enabled path. SandboxAudit additionally
rebuilds medium-risk results, dropping an inner stamp.

ToolReceiptMiddleware is now the outermost wrap_tool_call layer in the
runtime tail. Normal results still carry deerflow_tool_meta (stamped by
ToolErrorHandling on the inner return path); short-circuit messages
self-stamp meta or fall back to message.status. The new invariant is
declared as ordering constraints in deerflow.extensions.ordering, with
composed-chain regression tests for a blocked write and a warn-rebuilt
bash result.
2026-08-23 15:43:37 +08:00
AoHanBei
308948aa05
fix(mcp): compensate cancelled task submissions (#4933)
* fix(mcp): compensate cancelled task submissions

* fix(mcp): shield submission compensation

* docs(mcp): preserve notification lifecycle contract

* fix(mcp): bound submission compensation wait

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-08-23 15:30:21 +08:00
ajayr
7e95bef2e7
feat(mcp): per-user credential injection for shared MCP servers (#4868)
* feat(mcp): per-user credential injection for shared MCP servers

A single HTTP/SSE MCP server entry can now serve several users, each
authenticated to the remote service with their own credential. A server
opts in with a user_auth block mapping user ids to credential header
values ($ENV_VAR references supported):

  "user_auth": {
    "header": "Authorization",
    "users": { "<user-id>": "$SERVICE_TOKEN_ALICE" }
  }

The built-in user-scoped auth interceptor resolves the authenticated
runtime user on every tool call (request runtime -> ambient LangGraph
runtime -> auth config -> request-scoped user ContextVar) and rewrites
the configured header via request.override(), the same per-call
mechanism as the OAuth interceptor. It registers after OAuth in the
shared assembly so its per-user value wins the header when a server
declares both. The entry's static headers are used only for startup
tool discovery.

Fail-closed by default: an unmapped user - including the anonymous
default-user fallback - or a credential whose env reference resolved
empty gets an actionable ToolException instead of another user's
credential; on_missing: "passthrough" opts out per server. Combined
with the existing per-(user, thread) MCP session scoping this gives
credential isolation on shared servers.

Gateway API: user_auth.users values are masked in GET responses, and
PUT round-trips preserve stored credentials for masked values (same
contract as env/headers/oauth secrets); a masked value for a user id
not already stored is rejected.

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

* fix(mcp): address review — preserve stored user_auth sub-fields on partial PUT, warn-and-skip stdio, allow extras

Review findings from #4868:

1. A partial user_auth payload (e.g. {"enabled": false}) merged to
   users={} and default on_missing, irreversibly wiping stored
   credentials on PUT. The merge is now sub-field-aware via
   model_fields_set — omitted sub-fields carry the stored values, an
   explicitly sent users map still replaces (so full-round-trip removal
   works), masked values still swap back for stored credentials.

2. user_auth on a stdio server was a silent no-op: rewritten headers go
   to call meta, never a transport header, while deny errors still fired.
   The interceptor builder now warns and skips non-sse/http servers,
   matching the tool_call_timeout transport-mismatch convention.

3. McpUserScopedAuthConfigResponse now allows extra keys like the
   harness-side model, and extras survive masking and merge, matching
   the server-level model_extra handling.

Adds four regression tests (partial-PUT preservation, explicit-map
replacement, extras round-trip, stdio warn-and-skip).

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

* fix(mcp): reject blank user_auth.header at the gateway

A blank header passed the gateway response model, was persisted, then
failed the harness-side ExtensionsConfig validator on reload — the PUT
returned 500 after the write and every later config load/startup failed
until the file was hand-edited. Mirror the harness non-blank validator
on McpUserScopedAuthConfigResponse so the PUT fails with 422 before
anything is written.

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

* style: ruff format extensions_config.py

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

* fix(mcp): harden the trust chain and masking around user-scoped credential selection

Address review round 4:
- Scrub client-supplied user_id from run context/configurable for
  external callers in inject_authenticated_user_context, before every
  early return, and restamp only from request.state.user. Now that
  user_id selects which user's credential user-scoped MCP auth injects,
  a forged value must not survive any future path that skips the
  restamp. Internal callers (IM channels, scheduler) keep supplying
  end-user identity as before (PR #3294 contract). Regression tests pin
  both the scrub and that a forged body.context.user_id can never
  resolve as another user through merge + inject ordering.
- Include the caller's own resolved user id in the fail-closed deny
  message so operators can copy the exact users key (it differs by
  deployment path), and document the key formats in the mcp.mdx doc.
- Mask sensitive extra keys inside user_auth on GET like server-level
  extras, and swap masked sentinels back for stored values on PUT via
  _merge_extra_value_preserving_masked.
- Extract the interceptor wrap loop into compose_tool_interceptors and
  pin the security property functionally: an OAuth interceptor that
  actually sets Authorization loses the final header to the per-user
  credential through the same composition the session-pool path uses.

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

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-08-23 15:16:04 +08:00