16 Commits

Author SHA1 Message Date
Totoro
fc4f719664
fix(goal): retain supplied evidence and retry one malformed evaluator verdict (#7345)
* fix(goal): use spare evidence budget for long user input

* fix(goal): retry one malformed evaluator verdict

---------

Co-authored-by: Totoro-qaq <279883115+Totoro-qaq@users.noreply.github.com>
2026-10-23 20:29:35 +08:00
Totoro
2f0cd407fc
fix(goal): base no-progress counting on successful operations (#7271)
* fix(goal): track successful operations for no-progress checks

* fix(goal): reject failed exits and narration-only progress

---------

Co-authored-by: Totoro-qaq <279883115+Totoro-qaq@users.noreply.github.com>
2026-10-23 00:14:32 +08:00
Totoro
059758f321
fix(runtime): stop Goal continuations after loop hard stops (#7167)
* fix(runtime): stop Goal continuations after loop hard stops

* chore: remove redundant SVG sources from Goal fix

* test(goal): remove PR-only screenshot generation

---------

Co-authored-by: Totoro-qaq <279883115+Totoro-qaq@users.noreply.github.com>
2026-10-20 16:55:13 +08:00
Totoro
0fe6e63a68
feat(goal): show why a chat goal stopped and when it was met, and redact the goal evaluator and continuation input (#6556)
* feat(goal): record the met goal and keep goal state on the history head

- Add a goal_outcome LastValue channel (GoalOutcomeState). Only the
  guarded clear of a satisfied ordinary goal writes it, in the same
  checkpoint as the clear; the reply anchor is the latest visible AI
  message with text, the reply the visible signature keys on. A goal
  stored without created_at still clears and gets a record.
- write_thread_goal removes the record on every other goal write and
  lists it in channel_versions, new_versions and metadata writes when
  it changes. Threads that never had a record keep their checkpoint
  shape. The sync-only SqliteSaver and CachedHistorySaver, which take
  the #6448 sync fallback, store and drop it the same way.
- goal_outcome is server-owned: POST /state and non-internal run input
  that carry it get 400. A POST /state goal write, or a goal in
  external run input, clears it.
- A branch head written onto its replay base resets the channels the
  head lacks, so a goal or record that write_thread_goal removed does
  not come back. Branching from the met turn keeps the record without
  the met goal.
- The POST /history head now carries an active goal and an achieved
  goal_outcome, also before any message exists, so the post-run
  history refetch keeps them. Older entries stay title/thread_data.
- contracts/thread_goal_contract.json pins the chat stand-down and
  check-failure codes, the record shape and status, the head keys and
  the host-written reasons.

* feat(frontend): show why a goal stopped and when it was met

- The goal bar derives its state from the active goal, the goal_outcome
  record and the messages: set, in progress, continuing, stopped (limit,
  auto-continue off, no progress, token budget, missing evidence, failed
  run, unknown code), waiting for you, waiting, couldn't check the goal,
  paused and goal met. An 8/8 stand-down now reads "Stopped" with the
  next step instead of "Continuing 8/8", and a count-0 stand-down no
  longer looks like a fresh goal.
- "Goal met" shows while its anchor reply is the latest visible message
  (a visible human message, or a visible AI message with text, moves the
  chat on), so a reload agrees with the live view. An active goal wins
  over the record, and this tab's /goal set or clear hides it.
- useActiveGoal drops the optimistic goal when the record of that same
  goal arrives, which fixes the bar that stayed after a goal met on the
  first run (the clear frame has no goal key), also for a goal stored
  without created_at. Server goal values pass through isGoalState; a
  /goal status read uses the backend's own active check, so the bar, the
  toast and the edit lock agree with the server.
- Row 2 gives the reason and what to do next; Details holds the full
  goal, the checker's own note (never host-written text, a check failure
  or a paused goal's older check), the assumption note and an unknown
  code, and starts collapsed in each new state. The bar is a labelled
  section with a live region that announces state changes only (another
  goal's same state counts) and re-reads its text after a language switch.
- The edit pencil on the latest turn is shown disabled with "Editing is
  off while a goal is set" instead of hidden; the message toolbar shows
  on focus-within, so keyboard users can reach it.
- A /goal set or clear rejected with 409 keeps the draft and says a run
  is still going; other failures keep the server's message and the draft.
  A /goal request replaced by a newer one leaves the composer alone, so
  a double submit no longer empties it before the second one fails.
- Copy lives in inputBox.goalBar (en-US, zh-CN); a contract test reads
  contracts/thread_goal_contract.json, and the raw-identifier guard now
  catches stand-down codes and goal field names.

* test(frontend): cover the goal bar on both chat pages

- tests/e2e/goal-status.spec.ts runs every case on the chat page and the
  agent chat page, since each wires the goal bar and the edit lock itself:
  a goal stopped at 8/8, one waiting for details and one waiting on an
  open question card show their reason and next step, also after a
  reload; the locked edit pencil gets keyboard focus, shows its toolbar
  and tooltip, does not open the editor, and hides while a file uploads;
  Goal met after one automatic follow-up (In progress, Continuing 1/8,
  then "Auto-continued once") survives a reload and hides after the next
  visible message; a goal met on the first run of a new chat replaces the
  set bar and frees the pencil, and a new /goal replaces Goal met while
  its own run goes on; a /goal set or clear refused with 409 keeps the
  draft for the retry and shows its own busy toast.
- The mock POST /history head carries only the contract's
  history_head_keys, with goal only while active and goal_outcome only
  when achieved; thread state and run values omit an unset goal instead
  of sending goal: null. PUT and DELETE /goal drop the met record,
  setGoalWritesBusy returns the Gateway's 409, and a repeat create of a
  requested thread id returns the thread as is, like the Gateway.
- The raw-identifier guard also catches checker blockers and the met
  record's field names.
- frontend/src/AGENTS.md: the GoalStatus sentence now names goal,
  goal_outcome and useActiveGoal, reworded in place.

* test(frontend): keep the draft through a failed upload and a busy /goal

#6412 fires onSent only once a send is dispatched, so a failed upload
keeps the text, files and stored draft. A /goal the Gateway refuses with
409 never reaches sendMessage, and the composer rejects it so PromptInput
keeps the text. Drive both through the real sendMessage in one composer:
a failed upload keeps "summarize it" stored, a busy /goal keeps its text
and stored draft with no run, and the retry saves the goal and starts
one run with the objective, not the "/goal" text. After that run the
composer is empty and no stored draft comes back.

* fix(frontend): drop the stop condition's closing period before the pause clause

A stored stop condition often ends with a period, so the schedule card
read "…remain)., pauses itself" (and "…。,满足后自动暂停" in Chinese).
Trim the condition's closing sentence punctuation before the clause that
follows it. The event line, where the condition ends the sentence, is
unchanged.

* fix(frontend): point "evidence missing" at the agent, not a user reply

"Evidence missing" asked the user to reply with what's left, which is
the push a goal is meant to save. It now asks the agent to show the
result or explain what's missing, and offers /goal clear only for a goal that
no longer applies: clearing drops the met record, so work that is right
would never show "Goal met".

zh-CN follows. Copy only: no key, state or mapping changes, and the
scheduled page's reason labels are untouched.

tests/unit/components/workspace/goal-status-next-steps.test.ts checks
the row in en-US and zh-CN, and that no stop row offers /goal clear
without that condition. goal-status.dom.test.tsx and
goal-stream.dom.test.tsx now expect the new copy.

* fix(frontend): say "Couldn't check the goal" once in the goal bar

After a goal check that could not run, the bar's second line borrowed
the scheduled page's whole reason, so it repeated the chip: "Couldn't
check the goal · Couldn't check the goal; the run itself may be fine.
It's checked again after your next message." Chinese had the same
repeat.

The line now gives only why the check failed ("The run itself may be
fine", "No final reply was saved" or "The chat changed during the
check"), then when it is checked again. The screen-reader announcement
follows. The chip and the scheduled page's reason labels are unchanged.

tests/unit/components/workspace/goal-status-unchecked.test.ts checks
every check-failure code in en-US and zh-CN: the label appears once,
and the line still says why the check failed.

* feat(goal): redact the evaluator input when pii_redaction is enabled

The goal evaluator calls its model directly, outside
PiiRedactionMiddleware, so it sent raw user lines, tool arguments, tool
results and Human Input Card answers even with pii_redaction enabled.

With pii_redaction enabled:
- the messages in the evidence window are redacted whole before the
  evidence caps can cut an identifier in two, as TitleMiddleware does.
  This reuses redact_queued_messages, which already covers content,
  call arguments and card answers. Earlier messages are left alone: the
  evaluator never sees them, and the pass is synchronous work on the
  event loop (0.84 s for an 800-message, 4 MB thread, 0.06 s for its
  window);
- the assembled input, the goal objective included, is redacted again.

A redaction error fails the check with evaluator_failed; raw text is
never sent instead. When redaction is off, the input is byte-identical.
Thread state keeps the raw text. README.md, config.example.yaml and the
middleware docstring list the evaluator with the other redacted inputs.

tests/test_goal_pii.py puts an address where the evidence caps cut a
tool argument, a tool result and a card answer, and checks the
objective, the unchanged input when redaction is off, that only the
evidence window reaches the redactor and gives the same evidence as
redacting the whole thread, that a redaction error stands down with
evaluator_failed before the model is called, and the worker path.

* fix(goal): redact the hidden continuation when pii_redaction is enabled

The hidden /goal continuation repeats the goal objective and the
evaluator's reason and evidence summary. PiiRedactionMiddleware skips
it, since it is a framework message and not a user message, so with
pii_redaction enabled each continuation turn sent them raw to the
agent's model, and the message stayed in the thread for later model
calls. The durable-context block and the evaluator input already redact
the objective.

With pii_redaction enabled, make_goal_continuation_message now redacts
the objective, the reason and the evidence summary with redact_text
before the message is built. The thread keeps the redacted message,
which the UI hides; the goal state keeps the raw objective.

The worker builds the message before it counts the continuation. A
redaction error fails the check the way an evaluator redaction error
does: run_failed with stand_down_reason evaluator_failed, the goal stays
active, nothing is sent and the continuation budget is not spent. Only
the exception type is stored. With redaction off, the message is
byte-identical.

README.md, config.example.yaml and the middleware docstring list the
continuation with the other redacted inputs.

tests/test_goal_continuation_pii.py checks the redacted objective,
reason and evidence summary against the tokens redact_text gives, the
unchanged message with redaction off or no config, the worker path
under the run config, and a redaction error.

* docs(changelog): link the goal outcome entries to #6556

Fill the four ([#PR]) placeholders in CHANGELOG.md and CHANGELOG_zh.md with this PR's number and add the matching link references.

* fix(frontend): keep an active goal stored without timestamps visible

POST /threads/{id}/state and run input can store an active goal without
created_at or updated_at. The backend still evaluates it and rejects an
edit with 409 (is_active_goal checks only status "active"), but
isGoalState required both timestamps, so history and live values
dropped it: both chat pages hid the goal bar and unlocked the last-turn
pencil, and only a /goal status read, which used a looser predicate,
brought them back.

isGoalState now accepts any record with a string objective and status
"active", and normalizeGoalStatusRead uses it, so thread values, live
updates and status reads share one rule. Malformed or inactive values
are still dropped.

Tests cover a sparse active goal from the history head and from a live
update before the post-run refetch (bar shown, hasGoal true), and a
malformed goal that stays hidden.

* test(goal): check the outcome write metadata the same way on every saver

PostgresSaver stores checkpoint metadata through
get_serializable_checkpoint_metadata, which drops "writes", so the
[postgres] case of test_goal_outcome_round_trips_through_the_sync_fallback
failed with KeyError: 'writes' when CI ran it against a live database.

The test now records the metadata write_thread_goal passes to put and
asserts the clear's and the next goal's "writes" there, for every saver.
The stored channel values are checked as before, and on sqlite and
cached-sqlite the stored "writes" must still equal what was passed.

* docs(agents): keep goal_outcome out of the agents guidance chain

The middlewares AGENTS.md chain is already over the 98,304-byte AG002
hard limit on main, and the PR-mode check fails any chain a PR touches,
so adding goal_outcome to the ThreadState field list in
deerflow/agents/AGENTS.md failed the agent-guidance job. goal_outcome
stays documented in runtime/AGENTS.md and backend/app/gateway/AGENTS.md,
which are outside that chain.

* refactor(goal): read the evaluator's evidence and redaction from one window

format_visible_conversation recomputed the window start that the redaction
pass takes from _evidence_window. Both now use _evidence_window, so a later
change to the cap or to what counts as visible moves both.

The window test now fills the window with tool-only replies and tool results.
Before, it caught a cap change in one copy but not a change to what counts
as visible.

---------

Co-authored-by: Totoro-qaq <279883115+Totoro-qaq@users.noreply.github.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-10-10 00:20:45 +08:00
Totoro
f75d89f39d
fix(goal): record a failed evaluator call as a stand-down (#6073)
* fix(goal): record a failed evaluator call as a stand-down

When the goal evaluator call raised (a provider error, or an answer that
was not valid JSON), _prepare_goal_continuation_input() logged a warning
and returned without writing anything. The goal stayed active with no
last_evaluation, or with an earlier run's verdict and run id, unlike the
other paths that stop the goal loop.

Record it like the no_durable_end_of_turn stand-down: blocker run_failed,
stand_down_reason evaluator_failed, the current run id, and a reason that
names only the exception type. Nothing is recorded if the run was aborted
meanwhile. A failure before the evaluator is called keeps its behavior and
now logs "Could not prepare goal evaluation".

* docs(gateway): fit the evaluator-failure note in the AGENTS.md budget

Main grew backend/app/gateway/AGENTS.md to 49,006 bytes, and the longer
note pushed the merged file past the 49,152-byte hard limit that
tests/test_agent_guidance_check.py enforces. Say it in one clause.

* docs(gateway): keep main's AGENTS.md line after the merge

The merge from main kept this branch's version of the goal paragraph,
which restored the Human Input Card wording #6068 replaced and put the
file at 49,194 bytes, over the 49,152-byte limit the agent-guidance
check enforces. Take main's line. It already says every non-satisfied
evaluation is persisted with last_evaluation, which this fix makes true
for a failed evaluator call.

---------

Co-authored-by: Totoro-qaq <279883115+Totoro-qaq@users.noreply.github.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-30 11:35:19 +08:00
Totoro
e6a3f83f2f
fix(goal): preserve active goals when artifact delivery fails (#5980)
* fix(goal): preserve active goals when artifact delivery fails

* chore(goal): explain completion guards and log skipped clears

* docs(goal): clarify required artifact delivery

---------

Co-authored-by: Totoro-qaq <279883115+Totoro-qaq@users.noreply.github.com>
2026-09-28 14:44:45 +08:00
alanhuangyoo
0f2195e994
fix(goal): wait for the user when a turn ends on an unanswered question (#5467)
* fix(goal): wait for the user when a turn ends on an unanswered question

ask_clarification and the sandbox network prompt put their question in a
ToolMessage and end the graph. The goal evaluator only reads human and AI text,
so it never saw the question, judged the goal not met, and the worker queued a
hidden continuation telling the agent to keep going while the card was still
open. The agent could then act on a guess before the user answered.

Stand the goal down with blocker needs_user_input, without calling the
evaluator, when the trailing tool results include a human input request.

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

* test(goal): cover resuming after answered clarification

---------

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-09-16 21:30:57 +08:00
alanhuangyoo
0a0d768107
fix(goal): stand the goal down once the run has hit its token budget (#5424)
* fix(goal): stand the goal down once the run has hit its token budget

Since #5410 goal continuations share the run's token budget, so a
continuation queued after the budget's hard stop only spends one more
model call before its tool calls are stripped. Pass the run's stop_reason
into the goal loop and stand the goal down with "token_capped" in that
case. The evaluator still runs first, so a goal the capped run satisfied
is cleared as before.

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

* docs(goal): list the token-budget stop among goal-loop preconditions

Also pin that a satisfied goal is cleared, not stood down, when the run
hit its token budget.

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

---------

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-14 15:46:12 +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
Nan Gao
7389331e65
feat(extensions): observe task lifecycle and system model calls (#4684)
* feat(extensions): observe task lifecycle and system model calls

PR 1 (#4636) gave extensions a middleware chain, and a middleware only sees
what passes through the agent graph. Two runtime surfaces stay invisible to
it: when a lead run or a subagent begins and ends, and the DeerFlow-owned
model calls made outside the graph. This slice adds both, with no new
Gateway surface -- routers, services, and the reference extension stay in
PR 3.

Contract (deerflow-extension-api 0.1.1)
---------------------------------------
Two contribution kinds join `middlewares` on the registry:
`task_lifecycle` (`on_task_start` / `on_task_stop`, receiving a `TaskInfo`
and a conservative `TaskOutcome` of completed / aborted / failed) and
`system_model_observer` (`on_system_model_call`, receiving a
`SystemOperationKind`, a `SystemModelRequest` snapshot, and a
`SystemModelResult` carrying either the response or the provider exception
plus a duration).

`SystemModelRequest.messages` normalizes to a tuple at construction. Goal
evaluation and memory extraction pass a message list while title generation
and summarization pass one prompt string, and a bare `str` already satisfies
`Sequence` -- without normalization an observer iterating `request.messages`
would silently walk characters. Copying also makes the frozen snapshot
immutable in fact rather than only by declaration, since observations may run
after the call site returns and keeps mutating its own list.

Registry marks and rollbacks become per-bucket and positional, so an
`install()` that fails after registering two different kinds cannot leave one
of them behind. `needs_task_store` now covers all three kinds: a deployment
that registers only lifecycle hooks still gets a task store.

Task lifecycle
--------------
The lead worker notifies start after the run has started and stop after
completion persistence and the completion hook, but before clearing the
finalizing barrier and publishing the stream end -- holding the barrier
across stop is what keeps a same-thread replacement run from overlapping this
task's lifecycle. Cancellation raised out of the stop notification is
deferred, not propagated in place, so a cancelled run still clears the
barrier and emits its end frame. A subagent with a parent `run_id` wraps its
execution in the same pair inside `finally`, reporting `parent_task_id` so a
delegation tree is reconstructable; a subagent without a `run_id` (embedded
client, standalone LangGraph Server) logs and skips rather than inventing a
parent. Contributors run in registration order inside one shared 3s budget
and every failure is logged and failed open.

System model calls
------------------
Four kinds cover the model calls the middleware chain cannot see: goal
evaluation, memory extraction, title generation, and summarization. Each site
reports both terminal paths without changing the provider exception the host
observes, short-circuits on `has_system_model_observers`, and passes the live
task store when the runtime has one (detached work gets an isolated store).
The sync summarization half stays unobserved on purpose -- it and its only
host caller are the sync side of an async-only runtime, so notifying there
would block a thread on a call site the host never reaches; the reason is
recorded at the call site.

The DeerMem backend must stay vendorable and cannot import the extension API,
so it reports through a new `MemoryCallbacks.on_memory_llm_result` host hook
that the DeerFlow-side callbacks translate into an observation.

Notification loop
-----------------
Extension resources must be touched on the loop that created them, but
subagents can execute on isolated loops and DeerMem runs on a worker thread.
The Gateway registers its serving loop before any runtime dependency starts
and resets it last through the exit stack, so every startup-failure and
cancellation path is covered. Awaited hooks raised on another loop are
dispatched across with `run_coroutine_threadsafe` and awaited under the same
budget; synchronous sites submit fire-and-forget work. Shutdown stops
accepting detached observations before the memory flush -- that flush runs on
a worker thread and can emit memory observations -- while keeping the loop
alive for awaited task hooks until run and subagent drain completes.

Tests
-----
`test_extension_task_lifecycle.py`, `test_extension_subagent_lifecycle.py`,
and `test_extension_system_model_calls.py` cover ordering, fail-open, budget
exhaustion, snapshot binding under a concurrent singleton replacement, the
loop-dispatch and shutdown-suspension paths, and both terminal paths at every
call site. `test_gateway_run_drain_shutdown.py` pins the stop-before-barrier
and drain ordering.

* fix(extensions): decide notification fail-open by origin, observe cancellation

`_notify_each` only guarded `Exception`, so a contributor letting a
`CancelledError` escape — an extension implementing an internal timeout with
cancellation, say — skipped its successors and reached the worker's
deferred-interrupt path, ending an otherwise successful run as cancelled.
Fail-open is about where a failure came from, not its base class: only a
genuine cancellation of the host task increments `Task.cancelling()`, so
propagate on that and contain everything else. `KeyboardInterrupt` /
`SystemExit` still propagate.

`observe_system_model_call` skipped observers on cancellation for the same
base-class reason, leaving goal / title / summarization silent on a terminal
path that is routine — interrupt/rollback admission and shutdown both cancel
the run task, with the provider tokens already spent. Awaiting observers there
is unreliable (a repeated cancel interrupts that await before any of them
runs), so report through the same non-blocking submission the synchronous
memory bridge uses, then propagate the cancellation untouched.

DeerMem keeps `BaseException` around its provider call, now with the reason
recorded: that path runs on a worker thread, where cancelling the awaiting
side never interrupts the running thread, so `CancelledError` cannot arrive
at all. Its host-hook wrapper narrows to `Exception` — only the hook's own
failures are non-fatal, and an observability path must not swallow a process
teardown signal.

* fix(extensions): warn on budget exhaustion, scope observer logs by task, propagate teardown

Review response on #4684:

- The memory observation bridge caught BaseException, which would swallow
  a teardown signal raised while dispatching; it now catches Exception,
  matching the boundary the DeerMem-side call site documents and tests.
- A notification-budget timeout raised mid-hook fell into the generic
  hook-failure path and logged an asyncio-internal traceback; it now logs
  a warning like the pre-hook budget skip, while a TimeoutError a
  contributor raises on its own stays classified as a hook failure.
- System model observer logs passed the operation kind as the task id,
  so log lines said "task goal/title/..."; they now carry the task
  scope id alongside the kind.
2026-08-11 16:33:22 +08:00
MiaoRuidx
8a78c264b7
fix(runtime): cancel runs across live gateway workers (#4500)
* docs(runtime): design cross-worker cancellation

* fix(runtime): cancel runs across gateway workers

* fix(runtime): harden cross-worker cancellation races

让取消请求与 owner 终态写入通过持久化 CAS 决定先后,保证首次取消 action 在不同 worker 路由下保持一致。\n\n将 heartbeat 收敛为续租后仅发送本地中止信号,并补齐完成竞态与路由重试的回归用例。

* docs(runtime): drop implementation plan from PR

移除仅用于实现过程的跨 worker 取消设计记录,保留 README 和 backend/AGENTS.md 中面向最终行为的文档。

* fix(runtime): preserve local cancel fallback

* test(runtime): adapt worker run manager fakes

* docs(runtime): fix run cancel migration registry

---------

Co-authored-by: MiaoRuidx <12540796+MiaoRuidx@users.noreply.github.com>
2026-07-28 21:45:20 +08:00
MiaoRuidx
735f67a5b2
fix: guard pending run startup cancellation (#4450)
* fix: guard pending run startup cancellation

* fix(run): address startup review feedback

* fix(run): narrow start_run store contract

---------

Co-authored-by: MiaoRuidx <12540796+MiaoRuidx@users.noreply.github.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-25 23:50:21 +08:00
Vanzeren
42baed8c8c
feat(checkpoint): dual-mode checkpoint storage with LangGraph DeltaChannel (#4292)
* feat(checkpoint): dual-mode checkpoint storage with LangGraph DeltaChannel

Add a restart-required database.checkpoint_channel_mode ("full" default,
"delta") that stores the messages channel via LangGraph 1.2 DeltaChannel,
cutting checkpoint storage from O(n^2) to O(n) for append-only history.
Existing full checkpoints seed delta state transparently; no data migration.

- config: mode schema + freeze-on-first-use with
  CheckpointModeReconfigurationError; mode marker persisted in checkpoint
  metadata; unsafe delta->full downgrade rejected fail-closed with
  CheckpointModeMismatchError (run-level error, failed state read)
- state: delta message state schema; CheckpointStateAccessor centralizes
  materialized reads for all consumers (threads API, branches,
  regeneration, compaction, state updates, memory, goal workers)
- runtime: raw writers (run durations, interrupted title, thread goal)
  parent their checkpoints to the checkpoint they derive from, preserving
  delta ancestry; rollback forks the pre-run lineage through a state
  mutation graph with Overwrite restores; InMemorySaver delta-history
  override delegates to the base walk (fixes dropped first write after
  migration, also present upstream)
- tests: conformance suite over {memory, sqlite, postgres} covering
  migration replay, stable message IDs, storage shape and writer
  preservation; conftest fixture isolates the frozen mode between tests;
  stale config fakes refreshed
- ci: backend unit tests gain a postgres service

* fix(checkpoint): close materialization gaps in goal flow, guard public factory

- Route goal-continuation message reads through CheckpointStateAccessor:
  raw channel_values reads see the delta sentinel in delta mode, which
  disabled goal continuation (stand_down=no_durable_end_of_turn) after
  durable assistant turns. Raw tuples remain for tuple-only metadata
  (checkpoint id, pending_writes).
- Reject checkpoint_channel_mode='delta' + checkpointer in
  create_deerflow_agent at construction: factory-built persisted graphs
  bypass mode-marker injection and the fail-closed gate, reproducing
  silent mixed-mode state loss. Delta without persistence stays allowed.
- Import the postgres saver lazily (pytest.importorskip in the fixture)
  so the documented default install collects the suite; add a CI job
  running pytest --collect-only on uv sync --group dev without extras.
- Fix test_checkpointer fallback test to patch get_app_config at its
  use site (provider module), making it deterministic when a local
  config.yaml selects a persistent backend.

* fix(gateway): preserve extension-owned channels in state mutations, bump config version

- build_state_mutation_graph / build_checkpoint_state_mutation_accessor
  accept an explicit state_schema; branch and POST /state now compile the
  mutation graph from the thread's effective schema
  (graph_state_schema on the assistant graph). The base-ThreadState
  fallback silently discarded channels contributed by custom
  AgentMiddleware.state_schema on branch (data loss) and returned a
  false-success 200 on POST /state.
- POST /state validates values keys against the mutation graph's
  channels and rejects unknown fields with 422 instead of ignoring
  them; reducer detection covers extension channels
  (BinaryOperatorAggregate or DeltaChannel) so Overwrite replace
  semantics work for middleware reducers in both modes.
- Endpoint regression: custom AgentMiddleware.state_schema value
  survives branch, updates through POST /state, and an unknown field
  receives 422.
- config_version 26 -> 27 for the new database.checkpoint_channel_mode
  (example, Helm chart values + README, support-bundle fixture), so
  existing installs get the outdated-config warning and
  make config-upgrade merges the field; covered by a test driving the
  real example file and the real config-upgrade script.

* fix(gateway): resolve assistant schema via one boundary, copy branch reducer values with Overwrite

GET /threads/{id}/state now resolves the thread's assistant_id through a
single reusable boundary (thread metadata -> assistant_id -> effective
graph), so channels contributed by a custom AgentMiddleware.state_schema
are materialized instead of dropped by the default lead schema. POST
/state uses the same boundary instead of resolving the schema ad hoc.

Branch writes wrap every copied reducer channel in Overwrite (derived
from the effective mutation graph: BinaryOperatorAggregate + DeltaChannel),
not just messages, so already-aggregated values are never re-merged.

Regression tests use a real AgentMiddleware.state_schema with a
non-identity reducer in both full and delta modes: GET /state returns the
extension value, POST /state replaces it, branch preserves it
byte-for-byte; the unknown-field 422 is a separate assertion.

* refactor(checkpoint): collapse read-path round-trips and ship dual-mode parity tests

Address review round 4 on PR #4292:

- Push ahistory/history limit through Pregel into checkpointer.alist
  (SQL LIMIT) instead of materializing all rows and breaking in Python
- Fold the read-side mode-compat gate onto the returned snapshot's
  metadata; only writes keep the pre-write tuple fetch (fail-closed)
- Cache factory-built accessor graphs per (assistant_id, mode) with
  factory-identity revalidation; state reads no longer build a lead
  agent per request
- get_thread: one snapshot fetch + one raw pending_writes fetch on the
  resolved checkpoint (post-checkpoint __error__ writes never surface
  in snapshot.tasks; verified empirically)
- DeerFlowClient.get_thread: single checkpointer.list walk collects
  pending_writes per checkpoint instead of N get_tuple calls
- InMemorySaver delta-history patch: stand-down when the upstream
  override disappears, try/except guard, validated-version warning,
  guard tests
- make_lead_agent mode precedence: first freeze is owned by app_config
  (client-supplied configurable key ignored); once frozen, injected
  key/app_config must match or fail closed
- Rollback: lock in non-message channel restoration via fork
  inheritance with a dedicated reducer-channel test
- Add tests/test_threads_checkpoint_mode.py and
  tests/test_gateway_checkpoint_mode.py referenced by AGENTS.md and
  the PR validation section: lifecycle parity (memory + sqlite),
  per-step blob-count storage guard, gateway endpoint parity

Counted-saver tests pin checkpoint round-trips for aget/ahistory so
these regressions cannot silently return.

* fix(checkpoint): precise mode-mismatch HTTP mapping, gate E2E, and accessor resilience

- threads router: map CheckpointModeMismatchError to 409 (with cause and
  thread id) and CheckpointModeReconfigurationError to 503 across all state
  endpoints instead of swallowing both into a generic 500
- gate coverage: seed a real delta checkpoint into AsyncSqliteSaver and
  assert aget/aupdate/ahistory fail closed; assert 409 at the HTTP boundary
  through the real route stack
- rollback: compile the restore mutation graph with the thread's effective
  state schema per the build_state_mutation_graph contract
- inheritance contract locks: rollback and manual compaction preserve
  middleware-contributed channels via checkpoint fork cloning
- services: revalidate the accessor-graph cache against app_config identity
  so config.yaml hot-reloads never serve a stale compiled graph
- services: degrade full-mode state reads to raw checkpointer reads when the
  agent factory is unavailable (delta gate still applies; delta mode has no
  fallback)
- deps: override websockets==16.0 (langgraph-sdk 0.4.2's <16 pin silently
  downgraded 16.0 -> 15.0.1; pin is not grounded in any API incompatibility)
  and bump the langchain lower bound to what the lockfile actually resolves

* fix(checkpoint): include anchor checkpoint in degraded history walk + cover get_thread

- _RawCheckpointReadAccessor.ahistory: alist(before=...) is exclusive while
  pregel's get_state_history treats config.checkpoint_id as the inclusive
  start; fetch the anchor explicitly so both read paths paginate identically
- extend the degraded-path gateway test: GET /thread returns raw values, and
  POST /history with before starts at the anchor checkpoint

* fix(gateway): preserve degraded checkpoint timestamps

* fix(gateway): harden degraded checkpoint access

* fix(gateway): resolve assistants for checkpoint reads

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-22 08:33:29 +08:00
Daoyuan Li
fa419b3e4c
fix(goal): stop continuation_count double-bump in thread_changed_before_continuation stand-down (#4199)
_prepare_goal_continuation_input calls the same _persist closure twice
with the identical next_count in one evaluation cycle: once to commit
the real continuation, and again to record a thread_changed_before_continuation
stand-down if a race is detected right after that commit. The second
call re-passed continuation_count=next_count, so #4088's defensive
max(continuation_count, current_count + 1) guard saw the first call's
own write as a "current_count" bump and added another +1 on top of it -
silently consuming 2 units of the continuation budget for a cycle that
delivered zero actual continuations. #4088's guard is correct for the
independent-concurrent-continuations race it targets; this is a
separate call site incorrectly re-triggering that same guard against
itself.

The second _persist call no longer passes continuation_count, matching
every other stand-down call site in this function - the count was
already correctly committed by the first call.

Adds a regression test mirroring the existing
thread_changed_after_evaluation race test's checkpointer-wrapper
technique, since this sibling branch had zero prior coverage.
2026-07-15 20:21:04 +08:00
黄云龙
224f8de2cf
fix(goal): prevent continuation_count regression from racing continuations (#4088)
* fix(goal): prevent continuation_count regression from racing continuations

* fix(goal): prevent continuation_count regression from racing continuations
2026-07-12 23:33:52 +08:00
DanielWalnut
25ea6970a6
feat(runtime): implement goal continuations (#3858)
* implement goal continuations

* fix(goal): address review findings for goal continuations

- goal: key the no-progress breaker on a signature of the latest visible
  assistant evidence instead of the evaluator's volatile free-text, so it
  actually fires on stalled turns; thread the signature through every
  worker persist / no-progress call site
- goal: align _stand_down_reason default caps with should_continue_goal
  (8 / 2) so the two gate functions agree on goals missing the fields
- runtime: offload the synchronous checkpointer fallback via
  asyncio.to_thread (goal.py + worker.py) to keep blocking IO off the loop
- frontend: i18n the GoalStatus "Goal" label (goalLabel in en/zh/types)
- frontend: extract pure composer helpers into input-box-helpers.ts with
  unit tests (parseGoalCommand, readGoalResponseError, skill suggestions)
- tests: cover the evidence-based no-progress and default-cap behavior
- docs: align backend/AGENTS.md goal paragraph with actual behavior
- e2e: prettier-format chat.spec.ts (fixes the lint-frontend CI failure)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* feat(frontend): hide goal continuation counter until the agent continues

The goal status bar rendered a raw "0/8" before any auto-continuation, which
read as a mysterious score. Now the counter is hidden until
continuation_count > 0, then shows "Continuing N/M" with a tooltip explaining
the auto-continuation cap.

- Extract getGoalContinuationDisplay into a pure helper (hides at 0) + unit tests
- Add goalContinuing / goalContinuationTooltip i18n keys (en/zh/types)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* fix(goal): address review findings for goal continuations

Frontend correctness
- Fix the optimistic /goal result permanently shadowing server goal state:
  the streamed continuation counter never surfaced for a goal set in-session.
  Extract a shared useActiveGoal hook (used by both chat pages) that reconciles
  the optimistic copy with server state via a goalReconciliationKey, de-duping
  the copy-pasted goal block across the two pages.
- Stop /goal status|clear failures from escaping handleSubmit as unhandled
  rejections (handleGoalCommand now returns success; the run only starts when a
  goal was actually saved).
- Use a function replacer for the goal-status toast so an objective containing
  $&/$1 isn't treated as a replacement pattern.

Backend cleanliness / correctness
- De-duplicate four byte-identical helpers (_call_checkpointer_method,
  _message_type, _additional_kwargs, _is_visible_message) by importing them
  from runtime.goal instead of re-defining them in the run worker.
- Remove the dead `checkpoint_tuple.tasks` durability guard (CheckpointTuple has
  no tasks field) and document that pending_writes is the durability signal.
- Decompose the 176-line _prepare_goal_continuation_input: extract
  _reread_goal_and_checkpoint and a _persist closure so the thread-unchanged
  guard and stand-down persistence aren't open-coded three times. Document the
  last-writer-wins write-window limitation as a follow-up.
- Add a shared parse_goal_command helper and use it from the TUI and IM-channel
  /goal handlers (one place for the status/clear/set semantics).

Tests
- Restore the 11 command-registry tests dropped by the previous goal change
  (filter_commands ranking/description, build_registry builtins/skills, resolve
  cases) alongside the new goal tests.
- Add coverage for the IM-channel _handle_goal_command, the TUI _handle_goal
  handler, parse_goal_command, and goalReconciliationKey.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* fix goal review feedback

* fix goal continuation checkpoint races

* prioritize goal commands while streaming

Route composer submits through a shared helper so /goal commands can be handled before the streaming stop shortcut, while ordinary streaming submits still stop the active run.

Testing: cd frontend && pnpm exec rstest run tests/unit/components/workspace/input-box-helpers.test.ts tests/unit/components/workspace/goal-status-helpers.test.ts; cd frontend && pnpm check

* preserve goal status during clarification

Keep omitted stream goal fields distinct from explicit null clears so clarification interrupts do not hide an active thread goal that is still present in the checkpoint.

Testing: pnpm exec rstest run tests/unit/components/workspace/use-active-goal.test.ts tests/unit/components/workspace/input-box-helpers.test.ts tests/unit/components/workspace/goal-status-helpers.test.ts; pnpm check; git diff --check

* style: format active goal hook

Run Prettier on use-active-goal.ts to satisfy the frontend lint workflow formatting gate.

Testing: pnpm format; pnpm exec rstest run tests/unit/components/workspace/use-active-goal.test.ts tests/unit/components/workspace/input-box-helpers.test.ts tests/unit/components/workspace/goal-status-helpers.test.ts; pnpm check; git diff --check

* fix goal review followups

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-03 08:49:33 +08:00