856 Commits

Author SHA1 Message Date
PeaceMaker-best
36ce7590b7
fix(agents): isolate loop detection state by run (#5344)
* fix(agents): scope loop detection state per run

* fix(agents): harden loop scope fallback

* docs: move loop lifecycle detail out of inherited guidance

---------

Co-authored-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-11 13:45:52 +08:00
XIIRUAN
c65737025b
fix(mcp): enforce session pool capacity during promotion (#4962)
* fix(mcp): enforce session pool capacity during promotion

* test(mcp): cover concurrent session promotion

* docs(mcp): document promotion-time capacity check

* fix(mcp): align capacity eviction with owner promotion

* fix(mcp): detach promotion eviction teardown from new owner

* test(mcp): keep eviction teardown regression focused

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
Co-authored-by: XIIRUAN <253657638+XIIRUAN@users.noreply.github.com>
2026-09-10 21:21:18 +08:00
wutongyuonce
48a8978b7b
feat(scheduler): add interval schedule type (#5291)
* feat(scheduler): add interval schedule type

Allow scheduled tasks to fire every N seconds from last dispatch, not
only wall-clock cron or a single run_at. Cadence is UTC now+N with no
missed-beat catch-up, bounded by min_once_delay_seconds and 30 days.

* fix(scheduler): let interval tasks create, edit, and keep next run

Create/edit now keep every_seconds. Unchanged interval spec no longer
resets next_run_at, including timezone-only PATCH.

* fix(scheduler): keep non-minute intervals on edit

Stop rounding every_seconds to whole minutes in the form. Values that
are not whole minutes or hours now use a seconds unit so edit/duplicate
round-trips the stored cadence instead of rewriting it and resetting
next_run_at. Document that min_once_delay_seconds is also the interval
floor.

* fix(scheduler): clamp interval seconds to the default 60s floor

The new seconds unit allowed 1–59, which the API rejects under the
default min_once_delay_seconds. Clamp the form to >= 60 and show the
floor next to the preview. Also mention interval in the scheduler
field_doc, matching config.example.yaml.

* fix(scheduler): do not clamp interval amount while typing

Keystroke clamp made 90 become 9 -> 60, then 600, and backspace could
not leave 60. Keep the raw field text and apply the 60s floor on blur
and emit only.

* test(scheduler): cover interval input editing

* fix(frontend): preserve saved interval cadence until edited

* style(tests): format scheduled task router tests

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-10 16:46:01 +08:00
Jun
3a6e681dee
fix(view-image): read active sandbox images from sandbox (#5306)
* fix(view-image): read remote sandbox images from sandbox

* docs(tools): clarify view_image sandbox behavior

* fix(view-image): address sandbox lifecycle review

* fix(view-image): preserve image provenance across sandbox replacement

* fix(view-image): address provider recovery review

* fix(view-image): drain cancelled tool reads
2026-09-10 15:48:55 +08:00
kbsama
3e1349576e
fix(agents): filter assembly descriptor subagent policy by allowed_subagents (#5205) (#5262)
* fix(agents): filter assembly descriptor subagent policy by allowed_subagents (#5205)

* test(agents): ensure non-vacuous subagent catalog in assembly descriptor test

---------

Co-authored-by: 1747687484-collab <229902011+1747687484-collab@users.noreply.github.com>
2026-09-10 14:51:42 +08:00
tiammomo
0d4925305a
fix(infoquest): bound HTTP connect and read waits (#5315)
Apply an explicit 30-second connect/read inactivity timeout to InfoQuest reader, web-search and image-search calls.

Fixes #5314

Signed-off-by: tiammomo <26957354+tiammomo@users.noreply.github.com>
2026-09-09 16:31:41 +08:00
RongJie G
06c827903a
feat(persistence): add expand-phase thread incarnation storage (#5216)
* feat(persistence): expand thread incarnation storage

Add nullable thread and MCP task incarnation columns while preserving mixed-version writes. New thread records receive stable incarnation IDs, and new task rows copy the matching owned or shared thread incarnation without changing any read, claim, session, or deletion behavior.

* test(persistence): pin incarnation rollback compatibility

* test(api): pin internal thread response boundary

* fix(persistence): rebase incarnation rollout after projects

---------

Co-authored-by: CorgiBoyG <CorgiBoyG@users.noreply.github.com>
2026-09-09 15:52:09 +08:00
wutongyuonce
3c7d3303d3
feat(gateway): paginate thread run history (#5283)
* feat(gateway): paginate thread run history (#5282)

GET /api/threads/{thread_id}/runs stays a bare array of the newest 100
runs so LangGraph SDK clients keep working. Add GET /runs/page with a
(created_at, run_id) keyset cursor so callers can walk older history.

* fix(gateway): reject one-sided run history cursors

RunManager.list_by_thread now raises if only one of before_created_at
or before_run_id is set, matching the HTTP 422. Document the per-page
sort cost on the SQL keyset query, and add the missing CHANGELOG
[#5282] link definition.

* fix(gateway): round-trip run page cursors through query strings

Emit next_before_created_at with a Z suffix so '+' is not decoded as a
space. Accept that space, and Z, when parsing. Treat blank cursor
fields as absent and reject a non-ISO before_created_at in RunManager
so a harness caller cannot silently restart at the newest page.

* style(gateway): ruff-format run page cursor files

Collapse the one-sided cursor ValueError and the two before_created_at
asserts so ruff format --check passes at line-length 240.
2026-09-09 14:56:31 +08:00
Sami Belhareth
a3848ef155
fix: expose summary_text in embedded client values events (#5249)
* fix: expose context summary in embedded values events

* test: cover summary values in mode-tagged streams

---------

Co-authored-by: Sami Belhareth <6599699+belharethsami@users.noreply.github.com>
2026-09-09 10:17:11 +08:00
wutongyuonce
d8ed8160c9
fix(sandbox): stop list_dir from reporting failures as empty (#5264)
* fix(sandbox): stop list_dir from reporting failures as empty

Remote providers swallowed find/client errors as [] and 2>/dev/null
missing paths as empty stdout. ls_tool then told the agent the
directory was (empty). Raise OSError/FileNotFoundError instead so
the tool returns Error.

* fix(sandbox): list_dir raises on missing local paths and uses find -H

Empty stdout is not a missing path when find's start point is a
symlink (E2B /mnt/acp-workspace). Dereference only the start point
with find -H. LocalSandbox now raises FileNotFoundError for a
non-directory root, matching remote providers. AIO maps a missing
result.data to OSError rather than FileNotFoundError.

* fix(sandbox): group AIO list_dir find type predicates

Without parentheses, find PATH -maxdepth N -type f -o -type d applies
-type d without maxdepth and can drop files from the listing.

* fix(sandbox): distinguish list_dir command failure from missing path

Tenki, Boxlite, and OpenSandbox treated any empty find stdout as
FileNotFoundError, so a missing find binary (exit 127) or SDK error
looked like a missing directory. Raise OSError when find status is
outside (0, 1); keep FileNotFoundError for the find-ran-but-empty case.

* fix(sandbox): apply list_dir exit-status contract to AIO and E2B

Same gap as Tenki/Boxlite/OpenSandbox: empty find stdout with exit 127
was FileNotFoundError. Raise OSError when the status is outside (0, 1).

* fix(sandbox): classify list_dir by find status not head status

find | head under sh -lc reports head's exit code, so a missing find
binary (127) became FileNotFoundError. Record find's own status after
the bounded listing, treat SIGPIPE 141 as truncation success, and add
a shell-level regression test.

* test(auth): include projects permissions in /me contract pins

#5265 added projects:read/write/delete to the registered route set.
The /auth/me tests still pinned the pre-projects list, so CI failed
after merging main.

* fix(sandbox): do not treat missing list_dir marker as success

The generated script ended on `rm -f`, so process status was 0/1 even
when find's marker never landed. Both codes are in _FIND_OK, and the
parser fallback then classified an empty listing as FileNotFoundError —
the 127 misclassification this helper was meant to close.

Exit with find's status (126 if unknown). A missing marker is now
OSError unless the process status is already a non-OK failure.

* test(sandbox): emit list_dir status marker in provider fixtures

Parser now requires __DF_FIND_STATUS__ and refuses marker-less stdout.
Update AIO/Boxlite/E2B stubs and OpenSandbox/Tenki find fakes so listings
carry :0 and missing paths carry :1 with matching exit codes.

* style(sandbox): format list dir test fixture

* style(sandbox): format remote list dir helper

* docs(sandbox): keep guidance within the tested size budget

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-09 10:12:45 +08:00
Shxiao
fa89a12526
fix(sandbox): mask output tails into POSIX-style virtual paths (#5247)
* fix(sandbox): mask output tails into POSIX-style virtual paths

The output maskers slice the matched path tail from the original
output. With separator-agnostic matching, a Windows-spelled nested
tail kept its backslashes and was spliced into the POSIX-style virtual
path, so glob results and masked read output showed mixed paths like
/mnt/user-data/workspace/pkg\util.py or
/mnt/skills/integrations/lark-cli\lark-doc\SKILL.md. Virtual paths are
always POSIX-style, so normalize nested tails to forward slashes the
same way depth-1 tails already end up. Depth-1 tails and the callable
replacer (LocalSandbox._reverse_resolve_path) were unaffected.

Pin the nested-tail contract in test_sandbox_path_patterns; the
previously failing glob-tool and skills-masking regressions now pass
on Windows hosts.

* refactor(sandbox): share the mask tail-splicing rule; guard it on Linux CI

Review follow-up for #5247:

- hoist the tail-splicing rule (slice off the base, strip leading
  separators, normalize the rest to "/") into
  path_patterns.normalize_mask_tail and import it at both call sites,
  so the two maskers can only drift in their matching logic, not in
  the splice;
- add test_mask_local_paths_normalizes_windows_spelled_skill_tails,
  which spells the skills host root and the output with Windows-style
  strings so the nested tail keeps backslashes on every platform.
  Reverting the mask_local_paths_in_output-side normalization now goes
  red on Linux CI too, not only on Windows hosts.
2026-09-09 10:09:28 +08:00
Wenchao An
0b3dadbc9b
feat(subagents): add acceptance checks to durable batch items (#5289)
* feat(subagents): check and persist durable batch acceptance

Carry optional per-item criteria into native subagents, reuse the deterministic checker, and expose separate verdicts through item queries and exports. Preserve execution and retry semantics, renew leases during checks, and migrate existing batch rows with nullable acceptance fields.

* fix(subagents): align batch acceptance normalization and sandbox admission

* test(auth): include project permissions in the full-stack contract
2026-09-09 08:45:20 +08:00
tiammomo
dde131a808
fix(tavily): handle Extract responses without a title (#5280)
* fix(tavily): handle Extract responses without a title

Closes #5270

Signed-off-by: tiammomo <26957354+tiammomo@users.noreply.github.com>

* docs(tavily): keep extraction guidance within instruction budget

Keep the approved AGENTS file layout and inherited size limits.
Follow-up for #5280; refs #5270.

Signed-off-by: tiammomo <26957354+tiammomo@users.noreply.github.com>

---------

Signed-off-by: tiammomo <26957354+tiammomo@users.noreply.github.com>
2026-09-08 17:12:50 +08:00
tiammomo
05dc8f4123
fix(uploads): exclude fenced code from document outlines (#5281)
* fix(uploads): exclude fenced code from document outlines

Closes #5271

Signed-off-by: tiammomo <26957354+tiammomo@users.noreply.github.com>

* docs(uploads): keep outline guidance within instruction budget

Keep the AGENTS instruction chain within the upstream hard limit.
Follow-up for #5281; refs #5271.

Signed-off-by: tiammomo <26957354+tiammomo@users.noreply.github.com>

---------

Signed-off-by: tiammomo <26957354+tiammomo@users.noreply.github.com>
2026-09-08 17:06:28 +08:00
Zeren Wang
5951c89b5b
feat(projects): project workspaces with scoped chats and thread membership (#5265)
* feat(projects): project workspaces with scoped chats and thread membership

Backend:
- projects table model and migration; fail-closed ProjectRepository with
  ownership checks, CRUD/archive/restore/delete router, and atomic thread
  move between projects
- threads_meta.project_id column exposed as reserved deerflow_project_id
  metadata; project-aware thread create/search with pagination bounds and
  membership echoed in create responses
- first-run admission assigns the project only at genuine first run, seeded
  at write time and dropped when invalid; serialized against project
  deletion and thread assignment
- branch creation inherits the source thread's project membership (an
  archived/deleted project degrades the branch to unassigned instead of
  failing the request)

Frontend:
- projects data layer, thread move API, and sidebar projects section with
  flat/grouped modes, archived-project threads, and stable virtual-list
  offsets
- project detail page with project-scoped new chat
  (/workspace/chats/new?project=) and paginated thread list
- move-to-project thread menu, new-project dialog, archived-project gates
- project-scoped new chats pre-create the thread with membership before the
  first submit or /goal set, so runs never proceed outside the project
- goal-set preparation is fenced against conversation switches: a stale
  continuation is dropped instead of saving the goal or launching the
  abandoned submission on the newly opened conversation
- project thread lists join thread lifecycle invalidations (stop, pin) so
  an open project page never keeps stale titles, recency, or pagination

* fix(chats): keep archive undo toast when the sidebar row unmounts

The archive success toast was fired from per-mutate callbacks passed to
mutation.mutate. React Query drops those handlers when the observer
component unmounts before the mutation settles; archiving the open chat
removes its sidebar row mid-flight, so the undo toast never appeared and
the e2e archive-undo test timed out waiting for it.

Move the success/error handlers to the mutation level (useArchiveThread
options, same pattern as useMoveThreadToProject) where callbacks are
delivered even after the originating row unmounts.

* fix(projects): pin project thread listing contract and exclude archived chats

GET /api/projects/{id}/threads returned the thread store row verbatim
(list[dict], no response_model): user_id/assistant_id leaked, any future
ThreadMetaRow column would auto-leak, and the OpenAPI schema was empty.
Return a narrow ProjectThreadResponse (the exact fields ProjectThread
declares) with the same metadata secret redaction the surrounding thread
endpoints get from _MetadataRedactingResponse.

The listing also ran search() without the archived filter, so a retired
chat rendered as a normal row on the project page while the sidebar hid
it. Search archived=False to mirror the sidebar's archived:false lists;
restore stays on the global Archived tab.

Both regressions pinned by new router tests: wire-shape allowlist and
archived-member exclusion.

* docs(migrations): record the 0019/0020 chain against the bootstrap reservation

The tree now chains 0018 -> 0019_projects -> 0020_threads_meta_project_id,
so migrations/AGENTS.md was stale twice over: the revision index stopped at
0018 and the rolling-forward section still claimed the tree 'deliberately
remains at 0018'.

Document the new head and record the intentional numeric-prefix reuse of
0019: 0019_projects is in-chain while 0019_thread_incarnations stays the
reserved, allowlisted out-of-tree rollout id. The owning rollout revision
must re-parent onto this tree's head when it merges so alembic never sees
two heads off 0018; bootstrap.py now cross-references that note next to
_FORWARD_COMPATIBLE_REVISION.

* fix(chats): invalidate project thread lists on archive/restore

useArchiveThread refreshed the infinite sidebar cache, threads/search and
the per-thread metadata cache but not the project-scoped list
([...PROJECTS_QUERY_KEY, 'threads', id]) this PR adds — the one thread
mutation not wired to that key, after usePinThread, useRenameThread,
useDeleteThread, useMoveThreadToProject and invalidateStoppedThreadCaches.

An archive from a sidebar row while a project page is open therefore left
the archived chat rendered as a normal row until remount (and undo left it
missing). Invalidate the prefix in the mutation-level success handler.

Regression test asserts the project-list prefix is invalidated on success.

* fix(projects): fetch project discovery only in grouped sidebar mode

RecentChatList mounted two useProjects queries per sidebar render, but
knownProjectIds is consumed only by the grouped-mode exclusion filter; in
the default flat mode every page load paid two GET /api/projects?status=
round trips for data nothing read. Gate both queries on grouped mode —
GroupedProjectList fetches the same keys when the toggle is on and
TanStack dedupes the observers.

Also set retry: false on useProject: a deleted or foreign project 404s
deterministically, and the page renders a dedicated not-found state for
it, so the default 1s/2s/4s retry backoff kept deep links in 'loading'
for ~7s before that state appeared. Matches useThreadMetadata /
useThreadTokenUsage.

* fix(threads): fail closed on project-scoped create in memory mode

MemoryThreadMetaStore.create accepted project_id and silently ignored it,
making memory mode the one membership path that fails open: POST
/api/threads with a project id returned 200 and the run started
unassigned, violating the invariant that a run never proceeds outside the
selected project (the SQL store raises ProjectNotAssignableError inside
the insert transaction for the same request).

Raise ProjectNotAssignableError whenever project_id is present so the
router's existing 404 mapping applies, the frontend keeps the composer
text for a retry, and memory mode behaves exactly like SQL mode.
set_project already reports rejection; create now matches it.

Store-level test (raises, nothing persisted, project filter stays empty,
unscoped creates still work) plus a router-level test asserting the 404
and that no row is left behind.

* fix(projects): window the project page thread list

ProjectThreadsSection rendered every loaded page as a plain Link row, so a
long-lived project accumulated unbounded DOM on the page's scroll surface:
each load-more appended another 100 rows and every formatTimeAgo tick
re-rendered the whole list.

Reuse VirtualThreadList (now generic over any row shape with a
thread_id), pointing its scroll parent at this page's ScrollArea viewport
via the shared [data-slot="scroll-area-viewport"] selector used by
/workspace/chats; under the 60-row threshold it falls back to the plain
render, so small projects are unchanged.

* fix(projects): restore row dividers and pin them with a render test

The row class template literal concatenated transition-colors directly
with the conditional border-b token, so non-final rows rendered the
invalid class 'transition-colorsborder-b' and lost both the divider and
the transition. Compose the row classes with cn() and a boolean guard
instead.

The section moved out of page.tsx into a testable component so the row
markup finally has coverage: a DOM test asserts every row except the
final data row carries border-b (index-based, not last: — correct under
virtualization where the last mounted row is not the last data row), and
the untitled fallback plus load-more button render for a partial page.

* fix(projects): validate forward schemas and fence membership reads
2026-09-08 17:00:26 +08:00
Wenchao An
ca23703ef0
fix(subagents): preserve actionable acceptance gaps after compaction (#5287)
* fix: preserve actionable subagent acceptance gaps

Distinguish completed execution from acceptance in delegation guidance. Retain bounded unmet and unverified criteria after compaction and guide the lead to address remaining work within its budget.

* docs: keep acceptance guidance within instruction budget
2026-09-08 16:11:49 +08:00
Daoyuan Li
97c6883f42
fix(sandbox): use native AIO file append (#5278) 2026-09-08 16:05:01 +08:00
Sami Belhareth
f8f6cde23f
fix: preserve assistant/tool history in compaction summaries (#5248)
* fix: preserve bounded assistant and tool input during compaction

* fix: retain recent fallback summary input and clarify budget

* fix: preserve recent content in mixed-history summary fallback

* docs: trim middleware guidance to pass size check

---------

Co-authored-by: Sami Belhareth <6599699+belharethsami@users.noreply.github.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-08 16:00:45 +08:00
Shxiao
48bbea6df3
fix(workspace-changes): record symlink targets without the verbatim prefix (#5250)
* fix(workspace-changes): record symlink targets without the verbatim prefix

os.readlink on Windows reports absolute targets in extended-length
form (\?\C:\... or \?\UNC\server\share). The scanner stored that raw
spelling, so workspace-change events showed \?\-prefixed targets that
do not match ordinary Windows paths. Strip the prefix when recording;
POSIX readlink output is unchanged. Skills projection/review readlink
sites are untouched — they have no user-facing contract pinned on the
spelling.

* fix(workspace-changes): gate symlink target normalization to Windows

Review follow-up on #5250:

- Gate _normalize_symlink_target on os.name == "nt". readlink(2) on
  POSIX returns the literal string the link was created with, and
  backslash is a valid filename byte on Linux, so a target that starts
  with the extended-length prefix there must be recorded verbatim. The
  docstring's POSIX claim is now provably true.
- Commit the unit checks the PR body previously described as ad-hoc:
  drive and UNC prefix stripping, relative and plain POSIX targets,
  mid-string prefix left verbatim, and an off-Windows identity case, so
  the new branch has real coverage on every platform instead of relying
  on a Windows host with symlink privilege.

* test(workspace-changes): force Windows platform in prefix-strip unit tests

The os.name gate added in the previous commit makes
_normalize_symlink_target a verbatim identity off-Windows, so the two
prefix-strip assertions failed on the ubuntu-only unit CI. Force
os.name to "nt" via monkeypatch in both, mirroring the off-Windows
identity test, so every case pins exactly one platform's contract and
the suite is green on every host.

* fix(workspace-changes): strip only extended drive-letter prefixes

Review follow-up on #5250: the catch-all branch also stripped the
extended-length prefix from volume-GUID targets (\?\Volume{...}\...),
leaving a relative-looking path that loses the target's namespace.
Restrict the branch to extended drive-letter paths (letter, colon,
separator) and keep every other \?\ namespace form verbatim; add the
volume-GUID regression plus degenerate-prefix cases.
2026-09-08 14:51:57 +08:00
Yusuf Gürdoğan
23bd76046a
feat(community): add Sofya web search provider (#5239)
* feat(community): add Sofya web search provider

Add a community provider backed by Sofya (https://sofya.co). Its search
endpoint returns the content of the result pages, not only their snippets,
and its fetch endpoint returns a page as markdown. Both are plain JSON over
HTTP, so this needs no extra Python package (uses httpx, already a
dependency).

Changes:
- backend/packages/harness/deerflow/community/sofya/__init__.py
- backend/packages/harness/deerflow/community/sofya/tools.py
  Implements web_search_tool and web_fetch_tool using httpx.
  API key is read from the config.yaml `api_key` field or the SOFYA_API_KEY
  env var. Follows the same interface and output shape as the existing
  ddg_search and serper providers, including the max_results parameter with
  config override and the structured "No results found" error.
- backend/tests/test_sofya_tools.py
  Unit tests covering API key resolution, config overrides, result mapping,
  time range, HTTP errors, empty results, and fetch failures.
- config.example.yaml: add commented-out Sofya web_search and web_fetch
  examples alongside the other providers
- .env.example: add SOFYA_API_KEY placeholder
- backend/docs/CONFIGURATION.md: list Sofya under web_search, web_fetch and
  the environment variables

* fix(sofya): honor caller max_results, validate search_depth, join time_range contract test

- Caller-supplied max_results now wins; config is used only when the
  argument is omitted, matching GroundRoute.
- search_depth is clamped to basic/snippets; an unsupported value logs a
  warning and falls back to basic.
- Sofya added to the shared time_range schema contract test.

* fix(sofya): cap per-result content so a search stays inline

An unbounded search payload (up to 20 read pages) crossed the tool output
budget middleware's externalize_min_chars threshold, which replaces the
result list with a file reference. Cap each result's content at
contents_max_characters (default 2000, 0 disables), matching Exa's config
key. Five capped results stay under the 12000 char threshold.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016TZhyPNCX2GYyBPkvTgJV5

* fix(sofya): list Sofya in the recency contract, coerce non-string content

_clip subscripted its input, so a non-string content or description from
the API raised TypeError instead of degrading. Coerce to text first, the
way _sofya_post and _response_results guard the shapes around it. Also add
Sofya to the Web Search Recency section in backend/AGENTS.md.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016TZhyPNCX2GYyBPkvTgJV5

* fix(sofya): coerce web_fetch content, list sofya in the tools guide, add changelog

web_fetch sliced its content the same way web_search did before the last
push: a truthy non-string from the API passed the falsiness guard and then
raised TypeError. Reuse _clip, keeping the `or ""` so empty content still
reports "No content found".

Also add sofya to the community provider inventory in
packages/harness/deerflow/tools/AGENTS.md and an [Unreleased] changelog entry.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016TZhyPNCX2GYyBPkvTgJV5

* docs(zh): add the missing InfoQuest and Firecrawl web_fetch tabs

The ZH web_fetch tab list named five providers where EN names seven. Both
tabs mirror their EN counterparts, so the two locales list the same
web_fetch providers again.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016TZhyPNCX2GYyBPkvTgJV5

---------

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-08 10:50:03 +08:00
wutongyuonce
e5d23943ce
fix(sandbox): stop E2B append from overwriting on read failure (#5261)
* fix(sandbox): stop E2B append from overwriting on read failure

E2B has no native append, so write_file(append=True) read-modify-writes.
Treat only FileNotFoundException/FileNotFoundError as an empty file; any
other pre-read error must abort so a timeout cannot replace the original
contents with just the new fragment.

* fix(sandbox): distinguish E2B append pre-read refusal in logs

A non-not-found pre-read error now logs as a refused overwrite instead
of a write failure. Tests pin the successful read-modify-write path,
including a bytes pre-image, so dropping `existing` cannot go green.
2026-09-08 09:17:53 +08:00
Shxiao
cbd6621d52
fix(mcp): resolve drive-qualified paths in file reference rewriting (#5242)
* fix(mcp): resolve drive-qualified paths in file reference rewriting

urlparse reads a Windows drive prefix ("C:/...") as the URI scheme, so
_local_path_from_uri() returned None for every drive-qualified path and
MCP file references were never rewritten to /mnt/user-data/... virtual
paths on Windows hosts. file:// URIs were parsed with urlparse().path
alone, which also drops the drive qualifier.

- resolve file URIs through url2pathname so the /C:/... form keeps its
  drive, and treat single-letter schemes as bare drive paths;
- match drive-qualified absolute paths in the free-text reference regex;
- build test URIs with Path.as_uri() and anchor absolute-path fixtures
  at tmp_path so expectations are host-portable, and cover the
  drive-prefix scheme quirk explicitly.

* fix(mcp): decode file URIs once and guard Windows path rejection

Review follow-up on #5242:

- url2pathname already percent-decodes on both platforms, so the extra
  unquote() wrapper decoded references twice and broke filenames that
  contain a literal '%'. Pass parsed.path straight through.
- On Windows, url2pathname raises OSError for paths containing a raw
  '|' (e.g. file:///C:/tmp/a|b.png); catch it so one odd URI cannot
  abort the whole best-effort rewrite pass.
- The relative-reference regex alternative now accepts backslash
  separators, which is what Windows servers print for relative paths.
- Add Windows-only regressions driving the backslash free-text form
  and a file:///C:/ URI end to end, plus the OSError rejection.

* fix(mcp): resolve file://C:/… URIs with a drive-qualified authority

Review follow-up on #5242 (two-slash Windows drive form):

- Some Windows tools emit file://C:/… without the third slash, which
  puts the drive in the URI authority. Consult parsed.netloc: rebuild
  the /C:/… URL path for a drive-qualified authority, keep the current
  handling for empty and localhost authorities, and reject any other
  host instead of silently treating its path as local.
- Extend the free-text regex so the two-slash form matches as one token
  instead of the previous stray e://… mid-token match.
- Cover the two-slash form at the _local_path_from_uri unit, through
  _rewrite_local_paths_in_text, and add a portable case asserting that
  a remote-host file URI is ignored.

* fix(mcp): anchor the drive-qualified text alternative with a lookbehind

Review follow-up on #5242:

- [A-Za-z]:[\/] could steal a token at an earlier scan position:
  for file:/tmp/… (single-slash form per RFC 8089 / Java File.toURI())
  the match became e:/tmp/…, which resolves as a bare drive path and
  left the reference unrewritten where /tmp/… was rewritten before.
  Anchor the alternative with (?<![\w.-]) so word:/… shapes fall
  through to the earlier alternatives.
- Add the missing coverage for the relative alternative's backslash
  support (temp\page.yml through _rewrite_local_paths_in_text) and
  a portable regression pinning the file:/… tokenization.
2026-09-07 18:43:01 +08:00
PeaceMaker-best
e7c059d8d4
fix(agents): prioritize loop hard stops across tool batches (#5245)
* fix(agents): prioritize loop hard stops across tool batches

Scan an admitted multi-tool response completely before selecting a soft warning, so any configured hard limit can reject the whole batch. Preserve warning priority and sliding-window accounting.

Add counter-level plus sync and async compiled-agent regressions proving rejected tools are not executed.

Fixes bytedance/deer-flow#5243. AI-assisted implementation and tests.

* fix(agents): rearm loop warnings after cross-tool eviction

When another tool evicts an older tool below its frequency warning threshold, clear the older suppression mark so a later burst can warn again.

Add the cross-tool sliding-window regression from the final boundary review. AI-assisted implementation and tests.

* test(agents): cover override-aware loop warning rearm

Cache the default frequency thresholds for sliding-window eviction and verify that an evicted tool uses its configured override when warning eligibility is rearmed.

Document that simultaneous frequency warnings preserve legacy first-crossing selection while hard stops remain batch-severity-first.

Addresses review on #5245. AI-assisted implementation and tests.

---------

Co-authored-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-07 18:31:11 +08:00
RongJie G
99367100fb
fix(persistence): preserve rollback across the incarnation migration (#5219)
* fix(persistence): tolerate thread incarnation migration

* docs(persistence): pin forward revision contract

---------

Co-authored-by: CorgiBoyG <CorgiBoyG@users.noreply.github.com>
2026-09-07 15:27:00 +08:00
Jun
d1f1c49dcd
fix(workspace-changes): avoid draining metadata scans on cancellation (#5234)
* fix(workspace-changes): keep metadata cancellation responsive

* test(workspace-changes): cover metadata cancellation latency

* docs(workspace-changes): document cancellation ownership

* style(workspace-changes): format cancellation regressions

* docs(workspace-changes): remove unapproved nested guidance

* fix(workspace-changes): log only real cancellation drains

* style(workspace-changes): apply repository ruff format

* docs(harness): record workspace scan cancellation ownership

* docs: compact harness guidance below inherited size limit

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-07 15:18:58 +08:00
Wu Shuwen
364dad06aa
docs: update middleware contribution examples (#4945)
* docs: update middleware contribution examples

* docs: clarify middleware registration paths

* docs: clarify middleware injection scope

* docs: clarify middleware state updates

* docs: clarify middleware state updates

* docs: clarify middleware pipeline placement

* docs: complete middleware order guidance

* docs: align middleware guard conditions

* docs(middleware): name runtime sanitization order

* docs: pin middleware runtime order

* docs: clarify middleware assembly paths

* docs: clarify middleware anchor scope
2026-09-06 22:50:58 +08:00
早上肚子疼
383263bd34
fix(llm): release owned recovery probe on cancellation (#5197)
* fix(llm): release owned recovery probe on cancellation

* docs: keep middleware guidance within chain budget

---------

Co-authored-by: zaoshangduziteng <309590849+zaoshangduziteng@users.noreply.github.com>
2026-09-06 22:37:35 +08:00
Beautyl0ve
3bccd1474f
fix(client): scope embedded agent reuse by effective user (#5206)
Signed-off-by: Beautyl0ve <74452755+Beautyl0ve@users.noreply.github.com>
2026-09-06 22:33:12 +08:00
Ryker_Feng
98b8e4657e
feat(chats): add archive and restore (#5236)
* feat(chats): add archive and restore

* test(chats): observe archive search requests in pagination e2e

* docs(gateway): move thread lifecycle details out of inherited guidance

* docs(chats): add concise archive and restore RFC

* docs(chats): move archive RFC discussion to issue 5237
2026-09-06 22:30:26 +08:00
PeaceMaker-best
e3df6ea4a8
feat(channels): select custom agents per conversation (#5168)
* feat(channels): select custom agents per conversation

Signed-off-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>

* fix(channels): reserve agent slash command across clients

Signed-off-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>

* fix(tui): hide reserved slash commands from skills

Signed-off-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>

* fix(channels): preserve selected agent across clients

---------

Signed-off-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>
Co-authored-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>
2026-09-06 16:46:51 +08:00
Jun
d7afdbf9a3
fix(workspace-changes): drain snapshot scan before cancellation cleanup (#5232)
* fix(workspace-changes): drain cancelled snapshot scans

* test(workspace-changes): cover cancellation during snapshot scan

* fix(workspace-changes): consume drained scan outcome

* test(workspace-changes): keep scan cancellation regression focused

* test(workspace-changes): pin cleanup ownership under recancel
2026-09-06 16:39:52 +08:00
hataa
aec7d73890
feat(knowledge): add read-only LightRAG retrieval, fixes #5208 (#5209) 2026-09-06 10:21:58 +08:00
RongJie G
a4ff4b0b3b
fix(journal): dedup llm.ai.response persistence on re-fired on_llm_end (#5187)
* fix(journal): dedup llm.ai.response persistence on re-fired on_llm_end

LangChain may deliver on_llm_end more than once for the same run_id.
RunJournal already dedups token accounting and the run summary
(_record_message_summary) on that premise via _counted_message_llm_run_ids,
but the durable llm.ai.response self._put() call was left unguarded.

The event store is append-only and count_messages/list_messages read raw
rows without read-time dedup, so a replayed callback persists a second
llm.ai.response row for one logical response while the run's own
message_count counts it once. This inflates count_messages, duplicates a
message in list_messages pagination, and leaves the durable feed
inconsistent with the run summary.

Gate the persistence + summary block by the existing per-run_id guard so a
replayed callback is a no-op, keeping the durable message feed and the run
summary in agreement. Distinct run_ids are unaffected.

Adds regression tests: a re-fired callback for one run_id persists exactly
one row (red on main), and distinct run_ids each still persist a message.

* fix(journal): preserve canonical response on late usage

* fix(journal): preserve late usage while deduplicating responses

* fix(journal): keep first callback response canonical

* fix(journal): snapshot canonical response summaries

---------

Co-authored-by: CorgiBoyG <CorgiBoyG@users.noreply.github.com>
2026-09-06 10:16:17 +08:00
Hao Zhe
ec274bdedb
fix(memory): enforce backend read failure policy (#4726)
* fix(memory): enforce backend read failure policy

* fix(memory): harden failure policy handling

* fix(memory): narrow strict read handling

* fix(memory): keep timeout handling off saturated executor

* fix(memory): preserve legacy fail-closed timeouts
2026-09-06 09:01:33 +08:00
spud
2e85901876
fix(lark): enforce private ACLs on Windows credential tree (#5141)
* fix(lark): enforce private ACLs on Windows credential tree

On Windows, posix chmod(0o700/0o600) does not map to NTFS ACLs, so the
secret-bearing Lark CLI credential tree was not actually owner-restricted
and existing trees were not repaired.

Branch the permission application by platform:
- POSIX: directories 0o700, files 0o600 (behavior unchanged).
- Windows: disable inherited ACLs, grant the Gateway process user Full
  Control (resolved via its SID from whoami /user /fo csv /nh so it is
  locale-independent), and remove broad non-administrative grants
  (Everyone, Authenticated Users, Users). Fail closed on identity or
  icacls failures so a tree is never left accessible silently.

Existing-tree handling is covered by asserting every entry in the tree is
repaired, and the Windows command contract is covered by mocked tests run
in CI.

* fix(lark): harden Windows credential tree against TOCTOU and hard-link races

This replaces the path-based Windows hardening (lstat -> SetFileSecurityW(path) -> iterdir) with a handle-relative walker, so validation, the ACL update, and traversal are bound to the opened object rather than a re-resolved pathname.

Every credential object is opened no-follow; children are enumerated with GetFileInformationByHandleEx(FileFullDirectoryInfo) and opened/created relative to an already-open parent handle (NtOpenFile/NtCreateFile with OBJECT_ATTRIBUTES.RootDirectory), so a pathname swap cannot redirect the walk. Credential directories are opened exclusively (share=0): SetSecurityInfo therefore does not propagate the final owner-only OI|CI DACL into as-yet-unvalidated children, and the namespace is locked for the duration of the walk (concurrent child rename/replacement and hard-link insertion fail with sharing violations). Any file with nNumberOfLinks != 1 is rejected before its security descriptor is touched, so an NTFS hard link to an external file cannot change that file owner/DACL. POSIX keeps the lstat-before-descent walk.

Tests: native regressions for exclusive no-propagation, late hard-link insertion being blocked, mid-walk junction swap being blocked, static hard-link rejection, and both real NTFS junction rejections. Mock seams updated for the handle-relative API, and Windows portability fixes make the suite green on Windows except the known #5116 sandbox-runtime executable-bit failures.

* test(lark): keep the credential-tree symlink assertion portable

The credential-tree symlink rejection is a ValueError; POSIX reports a symlink while the Windows handle-relative walker reports a reparse point. Use a platform-dependent regex so the test passes on Linux/macOS and Windows.

* fix(lark): close remaining credential-tree hardening gaps

Review follow-up for the handle-relative credential-tree walker:
- Stage the transaction snapshot under the owner-only root, copying only config/ and data/.
- Serialize ensure() per-user across threads and processes with a dedicated lock.
- Make the walker iterative so deep trees cannot hit the recursion limit.
- Re-reject a symlinked POSIX root before mkdir; drop the over-strict ancestor-chain check.
- Soften the SetSecurityInfo failure claim; add regressions for each and carry os.SEEK_END in the os stub.

* fix(lark): anchor hardening lock under trusted base and keep POSIX untouched

Follow-up refinements to the credential-tree hardening:
- The per-user hardening lock file now lives directly under the trusted base_dir
  instead of the unverified per-user chain, so it is never written through an
  ancestor that has not yet passed reparse validation.
- ensure() takes the hardening lock only on the Windows branch; POSIX keeps the
  original contract, so no new lock-file side effect.
- Strengthen the ancestor-junction regression (lock not written to the external
  target) and fix two test docstrings to match the parent-first order and the
  no-prior-broadening failure claim.

* fix(lark): anchor credential-operation lock under trusted base on Windows

The per-user credential lock (_lark_credential_lock) created its advisory lock file
under the unverified per-user chain (users/<id>/integrations/.lark-cli.credentials.lock)
before ensure() validated the ancestor chain. On Windows it is now anchored directly
under the trusted paths.base_dir (mirroring the hardening lock), so a junction at
integrations can no longer cause the credential lock to be written into an external
target before reparse validation. POSIX keeps the original location unchanged.

Tests:
- Public-flow regression (start_lark_config -> credential lock -> ensure) uses an empty
  sentinel lock file to prove the old credential-lock path is never opened/written.
- CLI-write re-harden tests restore the POSIX outcome assertion (file tightened to 0600).
2026-09-06 08:50:05 +08:00
RongJie G
cd2633725b
fix(runtime): finish terminal signaling after hook cancellation (#5191)
* fix(runtime): finish terminal signaling after hook cancellation

* fix(runtime): shield task-stop observer fan-out

---------

Co-authored-by: CorgiBoyG <CorgiBoyG@users.noreply.github.com>
2026-09-06 08:39:26 +08:00
Coder-xiaosuo
27b2b67680
fix(models): restore usage_metadata in MindIE tool-mode simulated streaming (#5195)
In tool-enabled requests MindIEChatModel._astream falls back to awaiting the full _agenerate response and re-emitting it as simulated AIMessageChunks. The full response carries usage_metadata, but none of the simulated chunks copied it, so chunk aggregation (add_ai_message_chunks) produced a final message with usage_metadata=None. Token usage therefore vanished from token accounting, run stats, persistence and the UI for every tool-enabled streamed turn.

Mirror OpenAI's terminal-usage-frame convention: attach msg.usage_metadata to exactly the last simulated chunk (the trailing tool-call chunk when present, else the last text chunk / the single tool-only chunk) so the aggregated message carries it exactly once. add_usage() is per-chunk additive, so attaching usage to every chunk would multiply the totals.

Scope: MindIEChatModel only; other providers keep native streaming and ainvoke/non-tool astream were already correct.

Tests: regression guard asserting exactly one carrier chunk equals the last one and that merged usage equals the original across all three simulated-stream branches, plus chain-level tests driving the public astream() wrapper and asserting the persisted model_dump() shape.

Closes #5192
2026-09-05 14:10:18 +08:00
PeaceMaker-best
3c36217a51
feat(observability): persist deferred tool promotions (#5183)
* feat(observability): persist deferred tool promotions

Signed-off-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>

* fix(ci): trim agent guidance chain

Signed-off-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>

---------

Signed-off-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>
Co-authored-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>
2026-09-05 14:03:00 +08:00
Aari
0f7d8709d3
feat(sandbox): add controlled egress with approvals (#5152)
* feat(sandbox): add controlled egress approvals

* Apply batched suggestions from code review

* fix(sandbox): harden restricted network policy

* fix(sandbox): harden denied egress handling

* fix(sandbox): isolate network proxy sidecar

* chore: retry sandbox image smoke

* fix(sandbox): close remaining network policy gaps

* fix(sandbox): harden relay token rejection

* fix(sandbox): fence incompatible policy replacement

* fix(sandbox): replace containers across network modes

* fix(sandbox): close remaining lifecycle gaps

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-04 23:46:57 +08:00
Michael
eebe909ebd
fix(agents): make the injected current-date timezone configurable (#5154)
* fix(agents): make the injected current-date timezone configurable

## Why

The date reminder injected into the lead and subagent prompts (DynamicContextMiddleware / SubagentDateContextMiddleware) was formatted with the server's local wall clock. DeerFlow containers default to UTC, so a user in Asia/Shanghai chatting in the 00:00-08:00 window was told that 'today' is the previous day - the model then reasons, plans, and date-stamps against the wrong day.

## What changed

- _format_current_date() now reads the optional DEER_FLOW_DATE_TIMEZONE env var (IANA name, e.g. Asia/Shanghai) and renders the date in that zone.

- Unset = unchanged server-local behavior; invalid names log a warning and fall back to server-local.

- Documented the knob in config.example.yaml, the module docstring, and the DynamicContext entry in agents/middlewares/AGENTS.md.

## Surface area

- [x] Agents / LangGraph - prompt-layer date context only; message shape and midnight-update behavior unchanged

- [ ] Frontend UI / Backend API / Sandbox / Skills / Dependencies

- [x] Default behavior change (opt-in via env var - no behavior change unless set)

## Bug fix verification

- New tests: test_format_current_date_honors_configured_timezone (UTC 20:30 -> 2026-09-03 in Asia/Shanghai), test_format_current_date_defaults_to_server_local_without_env, test_format_current_date_invalid_timezone_falls_back.

- Existing mocked-datetime tests pass unchanged (no env -> datetime.now() path).

## Validation

- cd backend && python -m pytest tests/test_dynamic_context_middleware.py: 31 passed.

- blocking_io/test_dynamic_context_middleware.py: 2 pre-existing abefore_agent failures reproduce identically on clean main (blockbuster os.listdir detection on this host); the other 2 pass.

- ruff format + ruff check clean.

## AI assistance

**Tool(s) used:** Codex (coding agent)

**How you used it:** analysis, implementation, and regression tests produced with AI assistance; reviewed before commit.

- [ ] I've read and understand every line of this change and take responsibility for it — it's not unreviewed AI output.

* fix(agents): avoid passing tz to datetime.now when no timezone is configured

CI (backend-unit-tests shard 2) failed in test_tool_error_handling_middleware.py::test_subagent_chain_injects_date_without_memory_and_coalesces_for_strict_provider because its _FrozenDateTime.now() subclass override accepts no arguments, while _format_current_date() called datetime.now(None) even when DEER_FLOW_DATE_TIMEZONE was unset.

- _format_current_date() now calls datetime.now() with no arguments unless a timezone is actually configured, preserving the exact legacy call shape for every datetime-subclass test fake.

- The configured-zone path still calls datetime.now(tz) and converts via astimezone(tz).

- Updated the no-env unit test to assert datetime.now() is called without arguments.

Validation: python -m pytest tests/test_dynamic_context_middleware.py + the previously failing strict-provider test: 32 passed. ruff clean.

* fix(agents): declare the effective current-date timezone in the assembly descriptor

## Why

Maintainer review on the DEER_FLOW_DATE_TIMEZONE change (#5154): the knob is
prompt-affecting, yet both DynamicContextMiddleware and SubagentDateContextMiddleware
were invisible to the agent assembly descriptor - describe_middleware() fell back to
{"probed": true} for unset, UTC, and Asia/Shanghai alike, so deployments that inject
different dates shared one assembly fingerprint and release observers could not
distinguish or audit the behavior change.

## What changed

- Both middlewares now implement release_policy_parameters() -> dict[str, object],
  declaring {"current_date_timezone": <name>} as required by the module's middleware
  self-description contract.

- The declared value is the normalized effective zone: a configured, valid
  DEER_FLOW_DATE_TIMEZONE is reported by its IANA key (ZoneInfo.key); otherwise the
  server-local zone is resolved to its IANA key when the platform exposes one and to
  its tzname label otherwise (fixed-offset hosts), with "UTC" as the final fallback.

- Added both middlewares to _MIDDLEWARE_DECLARATIONS in
  backend/tests/test_middleware_release_policy.py so the existence check and the
  construct-and-canonical-hash check cover them.

## Verification

- New tests: test_date_middlewares_declare_configured_timezone (Asia/Shanghai),
  test_date_middlewares_declare_utc_timezone, plus resolved-server-local assertions
  for the unset and invalid-env paths; both middlewares agree in every case.

- cd backend && python -m pytest tests/test_dynamic_context_middleware.py
  tests/test_middleware_release_policy.py: 70 passed.

- Regression spot-check: tests/test_agent_assembly_descriptor.py,
  tests/test_tool_error_handling_middleware.py, tests/test_system_message_coalescing_middleware.py:
  102 passed.

- ruff check + ruff format clean.

## AI assistance

**Tool(s) used:** Codex (coding agent)

**How you used it:** analysis, implementation, and regression tests produced with AI assistance; reviewed before commit.

- [ ] I've read and understand every line of this change and take responsibility for it — it's not unreviewed AI output.

* fix(agents): stabilize the declared date timezone and simplify the formatting path

## Why

Follow-up review on #5154 (willem-bd). The release-policy declaration added in
884cec4b resolved the observability gap but pinned far less identity than its
docstrings claimed, and the formatting path carried a production no-op.

## What changed

- The declared label is now stable and unambiguous: a configured, valid
  DEER_FLOW_DATE_TIMEZONE is reported by its IANA key; without one, the
  server-local zone is resolved to a real IANA key from the TZ env var or the
  /etc/localtime symlink (Linux/macOS); when no key is recoverable (Windows,
  stripped containers) the declaration falls back to a stable
  `server-local(+-HH:MM)` sentinel carrying the current UTC offset. It never
  reports a bare abbreviation - datetime.now().astimezone() yields only a
  fixed-offset timezone whose tzname (e.g. CST, EST/EDT, CET/CEST) is
  ambiguous or DST-churns, which the assembly descriptor docstring says must
  not happen.

- Dropped the redundant astimezone(tz) in _format_current_date():
  datetime.now(tz) already returns the instant expressed in tz. The
  configured-zone test now fakes datetime.now(tz) semantics (the fixed instant
  converted into the requested zone) instead of relying on that conversion.

- Documented why the knob is an env var, not a config-schema field: it is read
  at runtime by both date-context middlewares so an operator can point a
  container at another zone without mounting a config.yaml (module docstring +
  config.example.yaml note).

- AGENTS.md: fixed the glued DynamicContext sentence (missing separator).

- Added tzdata>=2025.1 to the harness runtime dependencies (with uv.lock) so
  ZoneInfo works on stripped containers / Windows without an OS zone database.

## Verification

- New tests: test_server_local_timezone_name_reads_tz_env,
  test_effective_timezone_sentinel_uses_offset_when_local_zone_is_not_resolvable;
  reworked test_format_current_date_honors_configured_timezone to exercise the
  real datetime.now(tz) path.

- cd backend && python -m pytest tests/test_dynamic_context_middleware.py
  tests/test_middleware_release_policy.py tests/test_agent_assembly_descriptor.py
  tests/test_tool_error_handling_middleware.py: 140 passed.

- ruff check + ruff format clean.

## AI assistance

**Tool(s) used:** Codex (coding agent)

**How you used it:** analysis, implementation, and regression tests produced with AI assistance; reviewed before commit.

- [ ] I've read and understand every line of this change and take responsibility for it — it's not unreviewed AI output.

* fix(agents): offload subagent date injection off the event loop

## Why

Follow-up review on #5154 (willem-bd, P2): SubagentDateContextMiddleware.abefore_agent()
called _inject() directly, so enabling DEER_FLOW_DATE_TIMEZONE could synchronously
read the OS timezone database (or the tzdata wheel) on a cold cache - filesystem
work on the async subagent execution path whenever no assembly observer resolved the
zone first.

## What changed

- SubagentDateContextMiddleware.abefore_agent() now offloads the injection via
  asyncio.to_thread with the same bounded timeout DynamicContextMiddleware uses
  (issue #3402); on timeout it logs and skips the date update for that run instead
  of blocking the loop.

- Narrowed the exception handling in _date_timezone() and the TZ-env branch of
  _server_local_timezone_name() to configuration-shaped failures
  (ZoneInfoNotFoundError / ValueError / OSError). Previously a blanket
  `except Exception` also swallowed BlockingError raised by the blocking-I/O
  regression gate, mislabeling a loop-blocking call as an invalid timezone and
  silently degrading to server-local - which made the new regression anchor
  useless. Other exceptions now propagate.

## Verification

- New blocking-I/O regression anchor
  (backend/tests/blocking_io/test_subagent_date_context_middleware.py): drives a
  real create_agent graph under the strict Blockbuster gate with the knob enabled
  and asserts the date reminder is injected. Verified it fails (BlockingError) when
  the offload is reverted and passes with it in place.

- python -m pytest tests/blocking_io/test_subagent_date_context_middleware.py:
  1 passed. The two pre-existing os.listdir failures in
  tests/blocking_io/test_dynamic_context_middleware.py reproduce unchanged on this
  host (same as clean main).

- python -m pytest tests/test_dynamic_context_middleware.py
  tests/test_middleware_release_policy.py tests/test_tool_error_handling_middleware.py
  tests/test_agent_assembly_descriptor.py: 139 passed; the single
  ToolReceiptMiddleware-ordering failure reproduces with the change stashed
  (local extensions registry, unrelated to this PR).

- ruff check + ruff format clean.

## AI assistance

**Tool(s) used:** Codex (coding agent)

**How you used it:** analysis, implementation, and regression tests produced with AI assistance; reviewed before commit.

- [ ] I've read and understand every line of this change and take responsibility for it — it's not unreviewed AI output.

* fix(agents): read the direct /etc/localtime symlink target for the zone key

## Why

Follow-up review on #5154 (willem-bd, P2): on macOS, /etc/localtime commonly
points to /var/db/timezone/zoneinfo/<zone>, but Path.resolve() follows that
directory's own symlink and yields a versioned path such as
/private/var/db/timezone/tz/2026c.1.0/zoneinfo/Asia/Shanghai, which matched no
configured prefix. The server-local resolution then returned None and the
assembly descriptor fell back to a server-local(+HH:MM) sentinel even though
the IANA key was available - conflating zones that share an offset and making
DST-based fingerprints unstable.

## What changed

- _server_local_timezone_name() now reads the direct symlink target via
  os.readlink("/etc/localtime") instead of Path.resolve(), so macOS' unversioned
  zoneinfo path is seen as-is and its IANA key is preserved.
- The zone key is taken from whatever follows the last "/zoneinfo/" segment,
  which also handles Apple's canonical versioned path when a direct target
  already carries it, and relative targets are normalized against /etc.
- Removed the now-unused Path import and the fixed zoneinfo prefix tuple.

## Verification

- New tests: test_server_local_timezone_name_reads_direct_macos_symlink_target,
  test_server_local_timezone_name_reads_apple_versioned_symlink_target, and
  test_server_local_timezone_name_normalizes_relative_symlink_target.

- python -m pytest tests/test_dynamic_context_middleware.py
  tests/test_middleware_release_policy.py tests/test_agent_assembly_descriptor.py:
  105 passed (75 after re-running the first two on the merged main). The blocking
  subagent anchor still passes; the two pre-existing os.listdir blocking failures
  on this host are unchanged.

- ruff check + ruff format clean.

## AI assistance

**Tool(s) used:** Codex (coding agent)

**How you used it:** analysis, implementation, and regression tests produced with AI assistance; reviewed before commit.

- [ ] I've read and understand every line of this change and take responsibility for it — it's not unreviewed AI output.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-04 23:39:31 +08:00
Jun
e21245fd5b
fix(runtime): add waiter-safe keyed lock reclamation (#5176)
* fix(runtime): reclaim idle keyed locks safely

Replace the per-loop thread lock registries with a waiter-aware keyed lock table. Count holders and queued waiters before acquisition so idle entries can be reclaimed without allowing a late caller to bypass an existing waiter.

Add regression coverage for runtime call-site reclamation, goal/checkpoint domain independence, queued-waiter ordering, cancellation cleanup, high-cardinality key reclamation, and cross-event-loop isolation.

Fixes #5171

* style(runtime): format keyed lock helper
2026-09-04 20:20:28 +08:00
哈基米
dbe11dc798
fix(mcp): keep ToolRuntime injection for sync-wrapped MCP tools (#5164)
* fix(mcp): keep ToolRuntime injection for sync-wrapped MCP tools

make_sync_tool_wrapper attached an annotation-less wrapper to tool.func,
which made LangGraph's ToolNode stop detecting the coroutine's
"runtime" parameter (_get_all_injected_args falls back to func first
and its type hints are empty). Every MCP tool in a sync agent caller
then ran with runtime=None: resolve_runtime_user_id fell through to the
default user, and the background-submit wrapper lost run_id/tool_call_id
on the TaskSubmitRequest, so completion notifications launched under the
default lead agent instead of the thread's agent.

Wrap the generator and both sync_wrapper variants with functools.wraps
so get_type_hints still sees the original annotations.

Adds a regression test that drives a func-patched pooled MCP tool
through a real ToolNode and asserts the ToolRuntime is injected with
the thread's user context. It fails on main (runtime=None) and passes
with the fix.

* docs(mcp): record sync-wrapper annotation contract; extend regression coverage

Address review feedback on #5164:
- Expand the Notes block in make_sync_tool_wrapper to state the functools.wraps
  contract (copies __name__/__qualname__/__doc__/__annotations__/__dict__ and
  sets __wrapped__) and why that is what keeps get_type_hints resolving string
  annotations from  callers like
  mcp/tools.py and skill_manage_tool.py. Drop the no-op wraps on the inner
  run_coroutine so the wrap surface stays minimal.
- Rename the regression test to test_func_patched_mcp_tool_keeps_toolnode_runtime_injection.
- Add test_sync_wrapped_builtin_tools_still_resolve_runtime to pin that the
  built-in tools (which carry runtime as a pydantic schema field) keep resolving
  runtime after their func is wrapped by make_sync_tool_wrapper, so a future
  wrapper refactor cannot silently regress per-user resolution for them.
2026-09-04 19:34:15 +08:00
PeaceMaker-best
fb28ed0122
feat(subagents): enable historical upload discovery (#5170)
Signed-off-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>
Co-authored-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>
2026-09-04 16:11:34 +08:00
goloisme
683d146a30
fix(mcp): MCP cache re-initialization broken by cross-loop asyncio.Lock (#5062)
* Fixes #5060: P1 snapshot config before loading, P2 RLock for sync path

P1: Config changes during initialization can permanently cache stale tools.
    - Snapshot _config_path and _config_signature BEFORE await get_mcp_tools()
    - Compare AFTER get_mcp_tools() completes using _current_config_state()
    - If config changed during loading, discard stale result and retry
    - Prevents publishing old tools with new signature, which would make
      _is_cache_stale() permanently return False

P2: Module-level asyncio.Lock still fails across event loops after real contention.
    - _init_lock = threading.RLock() for sync path (reentrant, prevents races)
    - _async_init_lock = asyncio.Lock() for async init serialization
    - reset_mcp_tools_cache() now acquires _init_lock for serialization

Also fixes test P3: removed duplicated test bodies that leaked state between tests.

* fix(mcp): make cache initialization cross-loop safe

- Replace the module-level asyncio.Lock with thread-safe generation claiming
- Snapshot config state before/after MCP loading and discard stale results
- Keep reset state changes short and non-blocking for async endpoints
- Add regression coverage for contended cross-loop init, config rewrites during load, and reset while init is in flight

* fix: release MCP init claim on cancellation

Release the in-flight generation claim from a cancellation-safe finally block so cancelling the task that owns initialization does not strand future callers. Add regression coverage for cancelling the owner and then reinitializing successfully.

* fix(mcp): retire session pool before cache reset release

Prevent a concurrent MCP cache initializer from publishing tool wrappers
bound to the session-pool singleton that reset_mcp_tools_cache() is
already retiring. Add regression coverage for that interleaving.

* fix(mcp): retire session pool on stale cache invalidation

* fix(mcp): retire pool on init discard

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-04 11:30:36 +08:00
PeaceMaker-best
6022bdf5ae
perf(frontend): avoid redundant chat state snapshots (#5159)
* perf(frontend): avoid redundant chat state snapshots

Signed-off-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>

* fix(streaming): preserve incremental chat semantics

Signed-off-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>

---------

Signed-off-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>
Co-authored-by: PeaceMaker-best <221849497+PeaceMaker-best@users.noreply.github.com>
2026-09-04 08:20:12 +08:00
Jun
83cb6767b3
fix(sandbox): add FOWNER for AIO 1.11 startup (#5163)
* fix(sandbox): add FOWNER for AIO 1.11 startup

* test(sandbox): cover FOWNER startup capability

* docs(sandbox): document FOWNER capability

* test(sandbox): pin FOWNER regression smoke

* ci(sandbox): allow pinning FOWNER smoke image

* style(sandbox): format FOWNER smoke test

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-04 00:03:49 +08:00
luo jiyin
e5977320a0
feat(sandbox): surface structured mount upload result on E2B sandbox (#4884)
* 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.

* feat(e2b-sandbox): surface structured mount upload result on sandbox

Introduce MountUploadResult dataclass and attach it to
E2BSandbox.mount_upload_result after creation. This makes mount
truncation observable in code without re-parsing Gateway logs.

_apply_mounts() now returns MountUploadResult with truncated, reason,
and upload totals. _create_sandbox() captures the result, stores it on
the sandbox instance, and records it in a provider-level map so the
result survives warm-pool reclaim and reconnect.

MountUploadResult.truncated is True only when the upload pass was
stopped early by a resource limit (deadline, file count cap, or byte
budget). Individual mount failures (missing host path, SDK errors) are
logged but do NOT set truncated.

Tests cover: success totals, deadline truncation, file-count truncation,
byte-budget truncation, non-limit failure not reported as truncation,
missing host path not reported as truncation, create→sandbox wiring,
and create→release→warm-pool→acquire result preservation.

* fix(e2b-sandbox-provider): fix _mount_results lifecycle leak and review findings

- Add _forget_mount_result() helper and call it at all terminal sandbox
  paths: _reuse_in_process_sandbox dead-evict, _reclaim_warm_pool_sandbox
  reconnect/dead/bootstrap/ownership/shutdown failure branches,
  _forget_local_sandbox, _kill_and_close. Prevents unbounded dict growth
  over a long-running Gateway process.
- Make MountUploadResult @dataclass(frozen=True) to prevent silent mutation
  of the shared reference between provider map and sandbox attribute.
- Move _mount_results insert under self._lock in _create_sandbox to match
  the read discipline in _register_connected_sandbox.
- Guard _resolve_mount_upload_deadline against None (YAML explicit null)
  to avoid int(None) TypeError.
- Add 5 regression tests covering each bypass path and the frozen invariant.

* fix(e2b-sandbox-provider): add _forget_mount_result to _evict_oldest_warm branches

Add _forget_mount_result() calls to all four terminal exit paths in the
E2B _evict_oldest_warm override (reconnect failure, already-gone, kill
failure, kill success). The peer-owned path already cleans up via
_forget_local_sandbox. Add test_evict_oldest_warm_cleans_mount_result to
pin the kill-success branch.

* docs: reduce agent guidance size

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-03 19:53:59 +08:00
Michael
85ffb66d6e
fix(subagents): stamp UTC-aware datetimes on SubagentResult lifecycle (#5153)
## Why

DeerFlow declares one timestamp convention in deerflow/utils/time.py: every lifecycle timestamp is UTC (now_iso / datetime.now(UTC)). SubagentResult writers in subagents/executor.py still used naive datetime.now(), so on any non-UTC host the in-memory lifecycle metadata (started_at / completed_at) was local wall-clock time. The sibling durable-batch path (subagents/batch_service.py) already stamps datetime.now(UTC), so the same run model carried two different conventions depending on which path wrote it.

## What changed

- Added an executor-local _utcnow() helper that stamps datetime.now(UTC).

- SubagentResult.completed_at default in try_set_terminal(), result.started_at in _aexecute(), and the started_at default in _aexecute_admitted() now route through _utcnow().

- Explicit caller-supplied timestamps (completed_at=...) still pass through unchanged.

- Added regression tests asserting the default writers produce UTC-aware datetimes.

## Surface area

- [x] Backend runtime (deerflow.subagents.executor) - internal dataclass lifecycle metadata, no wire format change

- [ ] Frontend UI / Backend API / Sandbox / Skills / Dependencies / Default behavior change

## Bug fix verification

- New tests: tests/test_subagent_executor.py::test_timestamp_writers_stamp_utc_aware_datetimes and test_utcnow_helper_returns_utc_aware_datetime encode the convention.

- Updated BlockingDateTime.now() in the terminal-publication-order test to mirror datetime.now's optional tz argument.

## Validation

- cd backend && python -m pytest tests/test_subagent_executor.py: 136 passed; 2 pre-existing TestBashExecutionHarvest failures reproduce identically on clean main (Windows sandbox env), unrelated to this change.

- ruff format + ruff check clean on both changed files.

## AI assistance

**Tool(s) used:** Codex (coding agent)

**How you used it:** analysis of the timestamp conventions, implementation, and regression tests authored with AI assistance; change reviewed before commit.

- [ ] I've read and understand every line of this change and take responsibility for it — it's not unreviewed AI output.
2026-09-03 17:55:15 +08:00
Tu Naichao
ae82f426bf
fix(summarization): stop fraction triggers from crashing the agent build (#4901)
* fix(summarization): resolve fraction triggers from declared context_window, degrade instead of crashing the agent build

A fraction trigger/keep clause requires profile["max_input_tokens"], which any
third-party OpenAI-compatible model lacks, so SummarizationMiddleware
construction raised ValueError out of create_summarization_middleware and failed
the whole agent build (#3103).

- factory: translate a declared model context_window into the langchain
  profile (metadata-only, never reaches the provider payload); explicit
  caller/override profiles win
- summarization factory: drop unusable fraction trigger clauses (absolute
  clauses survive), fall a fraction keep back to the messages default, and
  disable compaction with an actionable warning only when no usable trigger
  clause remains — the agent build never dies from summarization config
- docs: config.example.yaml, ModelConfig.context_window, summarization.md

* refactor(summarization): share the default keep constant with the fraction fallback

The fraction-keep degradation fallback hardcoded ("messages", 20),
duplicating SummarizationConfig.keep's default_factory literal. Move the
value to a shared DEFAULT_KEEP constant so the two cannot drift apart.

* fix(summarization): keep trigger-null + fraction-keep constructing after degradation

A trigger of None with a fraction keep hit the all-clauses-dropped branch
(has_usable_trigger=False) and disabled compaction, and the accompanying
warning claimed configured triggers were all fraction-based when none were
configured. Only report nothing-usable when trigger clauses actually
existed; trigger:null keeps constructing the never-firing middleware with
the degraded keep, matching its behavior outside the degradation path.

* fix(summarization): address review — keep manual compaction, validate ContextSize, pin wiring

Review follow-ups on #4901:

- When every configured trigger is a dropped fraction clause, keep
  constructing the never-firing middleware (trigger=None) instead of
  returning None: manual /compact runs with force=True and never consults
  trigger clauses, so it must keep working for a profile-less model
  rather than reporting 'compaction is disabled'. The warning now says
  auto-compaction will not fire while manual compaction remains.
- ContextSize gains a config-load validator: fraction values must be in
  (0,1] (a percent-style 80 instead of 0.8 previously produced a threshold
  the context could never reach — a silently inert trigger), absolute
  values must be positive.
- New un-monkeypatched integration test pins the shipped wiring
  (context_window declared -> real factory attaches profile -> fraction
  clause survives -> middleware constructs), which the stubbed
  middleware-side tests and kwarg-capturing factory-side tests each
  stopped short of.
- Docs (summarization.md + config.example.yaml) clarify that the fraction
  resolves against the summary/anchor model's context_window
  (summarization.model_name when set, else the run model), including the
  mismatch caveat for a larger-window summary model.

* fix(summarization): reject non-finite ContextSize values at config load

YAML .nan / .inf pass pydantic's float parsing, and nan <= 0 is False,
so the positivity check alone let them through as dead thresholds
(count >= nan is always False) — the same silent-inert-trigger class the
range validator was added to close. Guard with math.isfinite first,
consistent with the existing non-finite guards on mem0 timeout_seconds
and poll_after_seconds.

* fix(summarization): merge context_window into inferred profile, require whole message counts

- construct the model first, then merge max_input_tokens into the
  provider-inferred langchain profile: passing profile= to the
  constructor replaced the whole inferred metadata (tool_calling,
  structured_output, io capabilities, output limits) with the single
  key. An explicitly configured profile is still never clobbered.
- reject non-integral ContextSize values for type=messages at config
  load: langchain slices the message list with them, so a float index
  raised TypeError mid-compaction.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-03 17:05:09 +08:00
Otavio Rodrigues Santana
27cb73659d
fix(auth): correct OAuth conflict error message + validate multi-worker Postgres claim with real concurrency benchmark (#5026)
* fix(auth): correct OAuth uniqueness error and index parity on Postgres

create_user() caught any IntegrityError on commit and always reported it
as a duplicate email. The email pre-check already rules out a real email
collision in the common case, so any IntegrityError reaching that handler
is actually idx_users_oauth_identity firing instead -- confirmed against
both backends: SQLite reports "UNIQUE constraint failed:
users.oauth_provider, users.oauth_id", Postgres reports a
UniqueViolationError naming the same index. The caller saw "Email already
registered" for an OAuth account conflict, which is wrong and would send
API consumers debugging the wrong field.

Distinguish the two cases via a substring check on the driver error text
(both backends name the oauth columns) and raise an accurate message for
each.

Also add postgresql_where to the same index, alongside the existing
sqlite_where. This is not a correctness fix -- verified empirically that
Postgres already enforces the same practical uniqueness without it
(NULL is never equal to NULL in either backends unique index, so real
duplicate (provider, id) pairs are already rejected and NULL/NULL rows
are already unconstrained). postgresql_where makes the index genuinely
partial on Postgres too, matching the stated intent in the surrounding
comment and keeping the index smaller as the common case (plain-password
accounts, both columns NULL) accumulates.

* test(bench): add multi-process SQLite vs Postgres concurrency benchmark

CONFIGURATION.md documents that multi-worker deployments must use Postgres
because "SQLite silently ignores row-level locks", but nothing in the repo
exercised that claim against real separate worker processes -- the existing
checkpoint benchmarks (scripts/benchmark/checkpoint/) measure single-process
read/write latency, and the existing Postgres tests
(test_pg_schema_integration.py, test_multi_worker_postgres_gate.py) cover
schema placement and config validation, not throughput or lock behavior
under concurrent load.

run_concurrency_bench.py spawns N real OS processes (subprocess.Popen, not
asyncio tasks or threads within one process) against the shared users
table, mixing reads (get_user_by_email) and writes (create_user) at a
configurable ratio, and reports throughput, error counts by exception
type, and p50/p95/p99/max latency per run.

Measured locally (2/4/8/16 workers, 100 ops/worker, 70/30 read/write):
SQLite completed all operations with zero errors at every worker count
(busy_timeout absorbs contention rather than raising), but total
throughput stayed flat around 28-34 ops/s regardless of worker count, and
p99 latency grew from ~400ms at 2 workers to ~5.9s at 16, with a 22s max.
Postgres throughput scaled with worker count (41 to 66 ops/s) and p99
stayed under 500ms at every worker count tested. Raw JSON output from
both runs is available on request; exact numbers will vary by machine and
are not asserted in the test suite.

test_bench_concurrency.py unit-tests the pure aggregation logic
(percentile math, error grouping, crashed-worker handling) the same way
test_bench_checkpoint_channels.py does for the existing benchmarks --
fast, no DB required, not the full multi-process sweep in CI.

* fix(auth): inspect the driver exception for OAuth conflict detection

str(exc) embeds the full failed INSERT statement, whose column list
always names oauth_provider/oauth_id, so a substring check on it
misclassified every commit-time IntegrityError on the users table as
an OAuth conflict (reproduced on SQLite: a duplicate primary key with
a different email raised "OAuth account already linked: None/None").

_is_oauth_identity_violation now inspects exc.orig instead: constraint_name
on Postgres, both violated column names present (not a bare "oauth"
substring) on SQLite.

Also ships the alembic revision idx_users_oauth_identity's postgresql_where
predicate needed: 0001_baseline created it as a full index on Postgres,
and ORM metadata changes only affect fresh create_all databases, never an
already-versioned deployment.

Addresses review feedback from willem-bd.

* fix(bench): run the concurrency benchmark in an isolated schema and derive paths from the checkout

--pg-url accepted an arbitrary database URL while the code pinned
postgres_schema="public" and unconditionally ran DELETE FROM users --
against any non-disposable database that permanently destroyed every
auth account. Each run now generates a unique throwaway schema
(bench_<uuid>), points both the seeder and every worker subprocess at
it via postgres_schema, and drops only that schema (DROP SCHEMA ...
CASCADE) once the full worker-count sweep finishes.

Also stopped hard-coding /opt/deer-flow/backend as the checkout path
and .venv/bin/python3 as the interpreter: BACKEND_DIR is now derived
from Path(__file__), and workers are spawned with sys.executable (the
orchestrator's own interpreter) instead, so the documented
uv run python scripts/benchmark/concurrency/run_concurrency_bench.py
command works from any checkout.

Addresses review feedback from willem-bd.

* fix: shorten oauth-index revision id, repin migration-head assertions, fix bench read/write mix

- 0017_users_oauth_identity_partial_pg (36 chars) exceeded
  alembic_version.version_num's VARCHAR(32) limit, which would fail
  stamping/upgrading on both fresh and existing Postgres deployments.
  Renamed to 0017_oauth_identity_pg_partial (30 chars).
- Repinned every test asserting 0016_subagent_batches as the migration
  head (test_persistence_bootstrap[.py|_concurrency.py|_regression.py],
  test_migration_0004/0007/0015) to the new 0017 revision id.
- worker.py's `(i % 100) < int(read_ratio * 100)` assumed n_ops >= 100;
  at the documented default (50 ops/worker, 0.7 read ratio) it produced
  either all-reads or all-writes, never the claimed mixed workload.
  Replaced with read_count()/is_read_op(), which distribute an exact
  round(n_ops * read_ratio) reads evenly across the sequence via modular
  spacing, and added test_bench_worker.py covering the default values
  plus small op counts.

* fix(bench): establish a real physical connection before timing ops

async with sf(): pass entered an empty AsyncSession without checking out
a physical connection -- SQLAlchemy stays lazy until the first statement
executes. That pushed connection-establishment cost onto each worker's
first timed operation instead of conn_time_s, and at 16 workers those 16
cold first-ops (1% of a 1600-op sample) could skew the reported p99.
Execute a real `SELECT 1` before starting the timer instead.

Verified with a real end-to-end run (uv sync + sqlite backend, 2
workers/10 ops, 0 errors) plus the full auth/bench/migration-bootstrap
suites (135 tests) and ruff check/format, all clean.

* fix(bench): synchronize workers before timing, fix percentile off-by-one

Two remaining measurement issues from review:

- run_workers() started the wall clock before spawning any worker, so
  throughput/wall_time absorbed N processes' staggered Python-startup and
  connection-establishment cost, and early workers could run ahead of ones
  still starting. Workers now print READY right before their timed loop
  and block on stdin for a GO signal; the orchestrator waits for every
  READY, then starts the timer and releases all workers together.

- summarize()'s pct() used int(len(latencies) * p) directly as a
  zero-based index -- a one-based-rank-as-index bug that put p95 and p99
  at the same slot (the max) for any 20-or-fewer-sample run, and for the
  documented 100-sample default. Now delegates to
  checkpoint_bench_common.percentile(), the already-correct nearest-rank
  implementation used elsewhere in the same benchmark family, instead of
  a second, broken one.

Verified: 14/14 unit tests pass (2 new pinned-value regression tests for
the percentile bug, using the reviewer's own 20-sample repro), ruff
clean, and a real 2/4-worker SQLite multi-process smoke run completes
with distinct p95/p99/max latencies and no hang.

* fix(bench): absolute SQLite bench path, surface crash diagnostics, exit nonzero on failure; share OAuth index constant + cover Postgres branch

Three more findings from review at 5fd25a7:

- seed_baseline() cleaned an absolute .deer-flow/bench_data path but
  handed DatabaseConfig a relative one, which resolves against the
  CALLER's CWD -- not BACKEND_DIR. Invoking the documented command from
  anywhere other than backend/ silently pointed the seeder and the
  (cwd=BACKEND_DIR) workers at two different directories: workers crashed
  with 'unable to open database file' while the run still printed a
  well-formed summary and exited 0. Both seed_baseline() and worker.py's
  make_session_factory() now use the same absolute path.

- Crashed workers' stderr was captured then discarded, and main() always
  exited 0 -- an all-crashed sweep was indistinguishable from a real
  (uneventful) measurement to anything checking the exit code or
  --out. run_workers() now prints each crash immediately and tags it with
  the real worker_id (previously always None); summarize() exposes
  crashed_worker_errors alongside the existing crashed_workers count;
  main() exits 1 via the new summary_indicates_failure() whenever any
  sweep crashed or fell short of expected_total_ops.

- idx_users_oauth_identity was hardcoded separately in the ORM Index and
  in _is_oauth_identity_violation's Postgres branch, with no test to
  catch drift, and that branch had zero non-skipped coverage (its only
  guard needs a live Postgres CI never configures). Exported
  OAUTH_IDENTITY_INDEX_NAME from user/model.py as the shared source of
  truth (migrations intentionally keep their own frozen literal, matching
  every other revision in that package) and added stub-exception unit
  tests pinning both the asyncpg constraint_name path and the sqlite
  message-substring path, positive and negative.

Verified: 107 passed locally (auth + bench-unit suites), ruff clean, and
two real reproductions -- invoking run_concurrency_bench.py from a
scratch directory outside backend/ (the reviewer's exact repro) now
completes 8/8 ops with crashed_workers: 0 instead of crashing, and the
new crashed_worker_errors/exit-code logic is exercised directly by the
new unit tests against the real summarize()/summary_indicates_failure().

* fix(auth): attribute create_user IntegrityErrors to the right constraint

Two coupled review findings on the classification helpers:

P3 (fall-through) -- after ruling out the OAuth-identity index, create_user
raised "Email already registered: {email}" for every remaining
IntegrityError, including the duplicate-primary-key case the new
regression test exercises, whose address is not registered. Added
_is_email_violation() so the email message is used only for an actual
users.email collision that raced past the pre-check; anything else (in
practice a duplicate id) now raises a neutral
"User already exists (constraint: <name>)".

P2 (unreachable asyncpg branch) -- exc.orig is not the asyncpg error.
SQLAlchemy's asyncpg dialect re-raises its own DBAPI IntegrityError
(pgcode/sqlstate only) 'from' the real asyncpg error, so constraint_name
lives on exc.orig.__cause__. getattr(exc.orig, "constraint_name", None)
was always None on Postgres; the helpers only worked there by accident,
matching asyncpg's DETAIL line in the message fallback. Added
_driver_constraint_name() which walks orig then orig.__cause__, and the
stub tests now model that real shape (orig wrapper + __cause__) instead of
a constraint_name that no driver puts on orig directly.

Tests: 76 passed. New coverage for the email-race path, both new helpers
on each backend, the neutral fallback message, and the cause-chain walk.

* fix(bench): match app SQLite PRAGMAs in workers; fail a sweep on any op error

Two review follow-ups:

- worker.py opened its SQLite engine with only connect_args timeout=30.
  synchronous and foreign_keys are per-connection PRAGMAs, so workers ran
  at SQLite's synchronous=FULL / foreign_keys=OFF while a real Gateway
  worker runs synchronous=NORMAL (persistence/engine.py::_enable_sqlite_wal)
  -- an extra fsync per commit on the measured 30%-write path, overstating
  SQLite's cost in the direction that flatters the "use Postgres"
  conclusion. Added a connect listener applying the same four PRAGMAs, with
  a test asserting synchronous/foreign_keys/journal_mode on a real worker
  connection.

- summary_indicates_failure() only looked at crashes and the completed vs
  expected op counts, so a sweep where every op completed but raised
  (e.g. writes hitting OperationalError) passed as a clean measurement:
  completed_ops == expected, 0 crashes. Added an "errors > 0" clause; the
  error breakdown stays in the JSON, only the exit code changes. Test added.

test_bench_concurrency.py + test_bench_worker.py green (20), plus a real
2-worker sqlite smoke run (6/6 ops, 0 errors, exit 0).

* fix(auth): match the real email index name; only claim "exists" for uniqueness

Review follow-ups on the classification helpers:

- email is mapped_column(unique=True, index=True), which SQLAlchemy and
  0001_baseline realise as a single UNIQUE INDEX (ix_users_email), not a
  named UNIQUE constraint. _is_email_violation compared the driver
  constraint name against "users_email_key", which Postgres never emits,
  so that arm was dead on Postgres (SQLite matched via the message). Fixed
  to ix_users_email.

- the residual IntegrityError fallback raised "User already exists" for
  every remaining IntegrityError -- a NOT NULL / CHECK / foreign-key
  violation is not a "user already exists" condition and is not part of
  create_user's ValueError contract. Added _is_uniqueness_violation
  (sqlstate 23505, or the SQLite "UNIQUE/PRIMARY KEY constraint failed"
  message); only that raises the "already exists" ValueError, everything
  else propagates unchanged.

- documented scripts/benchmark/concurrency/ in backend/AGENTS.md alongside
  the other benchmark family.

Tests: 78 auth + 20 bench-unit pass, ruff clean. New coverage for
_is_uniqueness_violation on both backends and for a non-uniqueness
IntegrityError propagating out of create_user.

* fix(bench): don't pre-close worker stdin (breaks communicate); require --pg-url for postgres

* fix(bench): ruff format; time throughput on the op phase, not teardown

- lint-backend: ruff format the files touched in this PR.
- Throughput window (P2): the orchestrator sampled its wall clock after
  every worker's communicate() returned, so it also covered each worker's
  engine.dispose(), result serialization and stdout transfer. Each worker
  now times just its operation phase (GO -> last op) and reports
  ops_elapsed_s; summarize() uses max(ops_elapsed_s) over the workers -- all
  released by the same GO -- as the throughput window (ops_window_s).
- Exercise migration 0018 (P2): test_user_oauth_partial_index.py goes
  through bootstrap create_all(), which builds the partial index from ORM
  metadata and never runs 0018.upgrade(). New Postgres-gated
  test_migration_0018_oauth_identity_pg_partial.py alembic-upgrades to 0017
  (full index), then 0018 (asserts the predicate appears), then downgrades
  (asserts the full index is restored) and re-upgrades.

* docs(middlewares): tighten SandboxAudit and Clarification entries in AGENTS.md

PR #5134 grew agents/middlewares/AGENTS.md ~1.8 KB, pushing the effective
AGENTS.md chain for that directory over the 96 KiB hard limit once this
branch also documents scripts/benchmark/concurrency/ in backend/AGENTS.md.
Condense the two longest middleware entries (SandboxAuditMiddleware,
ClarificationMiddleware) without dropping any identifier, example, issue
reference, ordering constraint, or documented gap; chain back to ~96.8 KiB.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-03 08:17:26 +08:00