7 Commits

Author SHA1 Message Date
rayhpeng
c38d291505 refactor(schedule): standardize the module on the hexagonal architecture
Replaces the pre-hexagonal scheduled-task implementation with a slice
built to the layering spec: a pure domain (two aggregates, two state
machines, the policy value object), output ports it declares itself,
SQL/launcher/thread adapters implementing them under `app/adapters/`,
and a composition root that is the one place any of them is
instantiated.

The old implementation mixed all of that into `app/scheduler/service.py`
and a router that reached straight into repositories, so the rules that
matter -- overlap policy, lease handling, which write owns which
timestamp -- were only reachable through a live database. They are now
unit-assertable on in-memory fakes, with the contract suite running each
port against both the fake and real sqlite, and the concurrency
invariants pinned by dedicated race tests.

Two bugs the old shape hid are fixed on the way: a completion hook that
replayed a stale snapshot and rolled back the launch write, and a
corrupt stored row surfacing to the client as a 4xx.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-07-31 11:16:46 +08:00
Ryker_Feng
fa496c0c8d
feat(browser): add agentic browser control (#4187)
* feat(browser): add agentic browser control

* fix(frontend): format browser view changes

* fix(browser): keep browser optional and isolate sidecar layout

* fix(browser): address PR review security and IME findings

- Nginx: add a browser-stream WebSocket location before the generic
  /api/threads regex so Live upgrades instead of downgrading to HTTP
  (both nginx.conf and nginx.local.conf).
- Ownership: require an existing owned thread for the WS stream and REST
  navigate, and tear down the browser session on thread deletion so a
  later caller cannot reuse a retained page/cookies by guessing the id.
- SSRF: enforce the URL policy at the browser request boundary via a
  context-level route guard covering redirects, popups, iframes, and
  subresources (skipped for CDP-attached Chrome).
- IME: skip key forwarding while a composition is active so confirming a
  CJK candidate with Enter no longer submits the remote page form.

Adds regression tests for the request guard, session teardown on delete,
and the composing-Enter key decision.

* fix(frontend): smooth streaming in long tool threads

* Revert "fix(frontend): smooth streaming in long tool threads"

This reverts commit f0462516eabe77f138d4027ea1c714fb226683cf.

* fix(browser): address review security and lifecycle findings

- Reject cross-origin WebSocket upgrades on the live browser stream
  (Origin allow-list reuse of CORS/same-origin helpers) to close a
  WS-CSRF hole, and fail closed when the ownership store is absent.
- Warn when a CDP-attached session runs with the SSRF request guard
  off, and drop the unreachable CDP screencast teardown dead code.
- Read browser session launch config from a single canonical source
  (browser_navigate) so it is deterministic regardless of call order.
- Bound per-thread Chromium accumulation with idle-timeout eviction
  and an LRU max-sessions cap.
- Reset the Live reconnect counter on a successful open so the stream
  can't permanently stall after the cumulative attempt cap.

* fix(frontend): reduce long tool thread render stalls

Reuse stable historical message groups during streaming, defer heavy Markdown and browser previews, and lazy-decode message images.

* fix(browser): keep live control responsive during continuous input

Why: Manual browser control felt laggy — a physical click ran the remote
Playwright click three times and each non-move input synchronously awaited a
JPEG screenshot, so events queued behind capture (queue wait up to ~237ms).
The first async attempt used a trailing-edge debounce, which froze the visible
page until a wheel/keyboard gesture stopped ("scroll finishes, then it jumps").

What:
- Frontend forwards one `click` per physical click instead of also emitting
  `down`/`up`, so the remote page is not clicked twice per gesture.
- Backend detaches live-frame capture from input dispatch: non-move actions
  start a rate-limited background refresh loop (leading frame + bounded cadence)
  that keeps emitting frames while input continues and never blocks dispatch.
- Add regression tests: input dispatch no longer awaits the screenshot, rapid
  inputs coalesce, and continuous input keeps refreshing before it stops.

Scenarios: Verified in the live Browser panel — a single click completes in
~57ms (was blocked behind a 171ms capture), and a 1.14s sustained wheel gesture
renders ~7 frames throughout the scroll instead of one frame after it ends.

* fix(browser): harden worker and session lifecycle

* fix(browser): address latest review feedback

* fix(frontend): preserve optimistic new-chat message

* test(e2e): preserve mocked message run ids

* fix(browser): address capability review feedback

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-21 11:46:33 +08:00
Ryker_Feng
01dc067997
feat: add composer input polishing (#3986)
* feat: add composer input polishing

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

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

* Merge main into feat/input-polish

* style(frontend): format input helper polish guard

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

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

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

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

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-08 17:10:27 +08:00
Xinmin Zeng
4fc08b4f15
feat: add scheduled tasks MVP (#3898)
* feat: add scheduled tasks MVP

* fix: harden scheduled task execution semantics

* feat(scheduled-tasks): preset-driven schedule form with timezone and live preview

Replace the raw cron input with a preset Select (hourly/daily/weekly/monthly/custom)
plus structured inputs (time picker, weekday toggles, day-of-month), datetime-local
for one-time tasks, a timezone selector defaulting to the browser timezone, and a
live human-readable preview. Reuses one ScheduledTaskScheduleInput for create and
edit; backend contract unchanged; zero new deps (pure Intl + DST-safe offset helpers).

* feat(scheduled-tasks): full-page i18n + recipe templates + E2E locale pin

Localize the rest of the scheduled-tasks page (filters, detail pane, actions,
edit form, run list, enum values) via t.scheduledTasks.* in en/zh. Add four
built-in recipe templates (GitHub Trending, news digest, issue triage, weekly
report) exposed as a chip row that pre-fills title + prompt + schedule. Pin
Playwright locale to en-US so E2E selectors stay stable against i18n. No backend
change, no new deps.

* fix(scheduled-tasks): idempotent 0003 migration, update head constants, future-date once test

Merge with main surfaced three CI failures:
- 0003_scheduled_tasks create_table collided with legacy test seeds that
  build from full metadata; guard with inspector.has_table so the revision
  no-ops when the table already exists (0004/0005 are already idempotent via
  _helpers.py).
- persistence bootstrap concurrency/regression tests pinned HEAD to main's
  0002_runs_token_usage; bump to the new head 0005_scheduled_task_thread_nullable.
- once-task router test used a fixed past run_at and tripped the
  must-be-in-the-future validation; use a future date.

* address review: ok-check, 502 for trigger failure, mock fields, migration filename, doc fences

- fetchThreadScheduledTasks now checks response.ok like the other fetchers.
- trigger endpoint returns 502 (not 409) when dispatch fails outright, so
  clients can distinguish a real conflict from a server-side failure.
- E2E mock normalizes scheduled-task objects with context_mode/last_thread_id
  and nullable thread_id, matching the backend contract the UI renders against.
- Rename 0002_scheduled_tasks.py -> 0003_scheduled_tasks.py to match its
  revision id (file was renamed in spirit already; filename now follows).
- CONFIGURATION.md: close the Tool Groups yaml fence and drop the stray fence
  after the Scheduler notes so the sections render correctly.

* fix(scheduled-tasks): harden lease, poller, config, and frontend UX after review

* fix(scheduled-tasks): harden run lifecycle, overlap skip, non_interactive gating, and DST conversion after review

- defer a once task's terminal status to the run-completion hook; the task
  stays running until the real outcome, and a startup sweep cancels once
  tasks orphaned by a crash (launch-time 'completed' could stick forever)
- record interrupted runs as a distinct 'interrupted' run status with a
  readable message; an interrupted once task ends 'cancelled', not 'failed'
- enforce overlap_policy=skip for fresh_thread_per_run via an active-run
  pre-check (same-thread ConflictError can never fire across fresh threads)
- protect terminal run statuses from the late launch-path 'running' write
- honor context.non_interactive only for internally-authenticated callers;
  arbitrary clients can no longer strip ask_clarification
- fix DST-stale timezone offset in zonedLocalToUtcIso by re-deriving the
  offset at the resolved instant (once tasks fired an hour late around
  spring-forward and the create->edit round-trip diverged)
- drop dead ScheduledTaskRunRepository.update_by_run_id; share one Gateway
  API error helper between channels and scheduled-tasks frontends

* fix(scheduled-tasks): close review round-3 gaps in guards, concurrency, and API ergonomics

- scrub internal-only context keys (non_interactive) from the assembled run
  config for non-internal callers: gating body.context alone left the same
  key smuggle-able through the free-form body.config copied verbatim by
  build_run_config
- guard update_after_launch with protect_terminal so the launch bookkeeping
  write cannot clobber a once task already finalized by a fast-failing run's
  completion hook (parent-row sibling of the run-row guard)
- reject a manual trigger while the task has an active run (409) instead of
  launching a duplicate concurrent run on fresh_thread_per_run
- re-arm a terminal once task to enabled when PATCH pushes run_at into the
  future; previously the endpoint returned 200 with a next_run_at that could
  never be claimed
- make max_concurrent_runs a real global cap: each poll claims only into the
  remaining budget of active (queued/running) scheduled runs
- paginate GET /scheduled-tasks/{id}/runs (limit<=200, offset) and push the
  thread filter of /threads/{id}/scheduled-tasks into SQL
- stamp context.user_id on scheduler-launched runs, matching IM channels, so
  user-scoped guardrail providers see the owning user

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-07-04 21:51:57 +08:00
rayhpeng
34e835bc33
feat(gateway): implement LangGraph Platform API in Gateway, replace langgraph-cli (#1403)
* feat(gateway): implement LangGraph Platform API in Gateway, replace langgraph-cli

Implement all core LangGraph Platform API endpoints in the Gateway,
allowing it to fully replace the langgraph-cli dev server for local
development. This eliminates a heavyweight dependency and simplifies
the development stack.

Changes:
- Add runs lifecycle endpoints (create, stream, wait, cancel, join)
- Add threads CRUD and search endpoints
- Add assistants compatibility endpoints (search, get, graph, schemas)
- Add StreamBridge (in-memory pub/sub for SSE) and async provider
- Add RunManager with atomic create_or_reject (eliminates TOCTOU race)
- Add worker with interrupt/rollback cancel actions and runtime context injection
- Route /api/langgraph/* to Gateway in nginx config
- Skip langgraph-cli startup by default (SKIP_LANGGRAPH_SERVER=0 to restore)
- Add unit tests for RunManager, SSE format, and StreamBridge

* fix: drain bridge queue on client disconnect to prevent backpressure

When on_disconnect=continue, keep consuming events from the bridge
without yielding, so the worker is not blocked by a full queue.
Only on_disconnect=cancel breaks out immediately.

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

* fix: remove pytest import

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

* fix: Fix default stream_mode to ["values", "messages-tuple"]

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

* fix: Remove unused if_exists field from ThreadCreateRequest

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

* fix: address review comments on gateway LangGraph API

- Mount runs.py router in app.py (missing include_router)
- Normalize interrupt_before/after "*" to node list before run_agent()
- Use entry.id for SSE event ID instead of counter
- Drain bridge queue on disconnect when on_disconnect=continue
- Reuse serialization helper in wait_run() for consistent wire format
- Reject unsupported multitask_strategy with 400
- Remove SKIP_LANGGRAPH_SERVER fallback, always use Gateway

* feat: extract app.state access into deps.py

Encapsulate read/write operations for singleton objects (RunManager,
StreamBridge, checkpointer) held in app.state into a shared utility,
reducing repeated access patterns across router modules.

* feat: extract deerflow.runtime.serialization module with tests

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* refactor: replace duplicated serialization with deerflow.runtime.serialization

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat: extract app/gateway/services.py with run lifecycle logic

Create a service layer that centralizes SSE formatting, input/config
normalization, and run lifecycle management. Router modules will delegate
to these functions instead of using private cross-imported helpers.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* refactor: wire routers to use services layer, remove cross-module private imports

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* style: apply ruff formatting to refactored files

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat(runtime): support LangGraph dev server and add compat route

- Enable official LangGraph dev server for local development workflow
- Decouple runtime components from agents package for better separation
- Provide gateway-backed fallback route when dev server is skipped
- Simplify lifecycle management using context manager in gateway

* feat(runtime): add Store providers with auto-backend selection

- Add async_provider.py and provider.py under deerflow/runtime/store/
- Support memory, sqlite, postgres backends matching checkpointer config
- Integrate into FastAPI lifespan via AsyncExitStack in deps.py
- Replace hardcoded InMemoryStore with config-driven factory

* refactor(gateway): migrate thread management from checkpointer to Store and resolve multiple endpoint failures

- Add Store-backed CRUD helpers (_store_get, _store_put, _store_upsert)
- Replace checkpoint-scanning search with two-phase strategy:
  phase 1 reads Store (O(threads)), phase 2 backfills from checkpointer
  for legacy/LangGraph Server threads with lazy migration
- Extend Store record schema with values field for title persistence
- Sync thread title from checkpoint to Store after run completion
- Fix /threads/{id}/runs/{run_id}/stream 405 by accepting both
  GET and POST methods; POST handles interrupt/rollback actions
- Fix /threads/{id}/state 500 by separating read_config and
  write_config, adding checkpoint_ns to configurable, and
  shallow-copying checkpoint/metadata before mutation
- Sync title to Store on state update for immediate search reflection
- Move _upsert_thread_in_store into services.py, remove duplicate logic
- Add _sync_thread_title_after_run: await run task, read final
  checkpoint title, write back to Store record
- Spawn title sync as background task from start_run when Store exists

* refactor(runtime): deduplicate store and checkpointer provider logic

Extract _ensure_sqlite_parent_dir() helper into checkpointer/provider.py
and use it in all three places that previously inlined the same mkdir logic.
Consolidate duplicate error constants in store/async_provider.py by importing
from store/provider.py instead of redefining them.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* refactor(runtime): move SQLite helpers to runtime/store, checkpointer imports from store

_resolve_sqlite_conn_str and _ensure_sqlite_parent_dir now live in
runtime/store/provider.py. agents/checkpointer/provider and
agents/checkpointer/async_provider import from there, reversing the
previous dependency direction (store → checkpointer becomes
checkpointer → store).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* refactor(runtime): extract SQLite helpers into runtime/store/_sqlite_utils.py

Move resolve_sqlite_conn_str and ensure_sqlite_parent_dir out of
checkpointer/provider.py into a dedicated _sqlite_utils module.
Functions are now public (no underscore prefix), making cross-module
imports semantically correct. All four provider files import from
the single shared location.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(gateway): use adelete_thread to fully remove thread checkpoints on delete

AsyncSqliteSaver has no adelete method — the previous hasattr check
always evaluated to False, silently leaving all checkpoint rows in the
database. Switch to adelete_thread(thread_id) which deletes every
checkpoint and pending-write row for the thread across all namespaces
(including sub-graph checkpoints).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(gateway): remove dead bridge_cm/ckpt_cm code and fix StrEnum lint

app.py had unreachable code after the async-with lifespan refactor:
bridge_cm and ckpt_cm were referenced but never defined (F821), and
the channel service startup/shutdown was outside the langgraph_runtime
block so it never ran. Move channel service lifecycle inside the
async-with block where it belongs.

Replace str+Enum inheritance in RunStatus and DisconnectMode with
StrEnum as suggested by UP042.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* style: format with ruff

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: JeffJiang <for-eleven@hotmail.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-03-30 16:02:23 +08:00
amdoi7.
8b0f3fe233
fix(threads): clean up local thread data after thread deletion (#1262)
* fix(threads): clean up local thread data after thread deletion

Delete DeerFlow-managed thread directories after the web UI removes a LangGraph thread.
This keeps local thread data in sync with conversation deletion and adds regression coverage for the cleanup flow.

* fix(threads): address thread cleanup review feedback

Encode thread cleanup URLs in the web client, keep cache updates explicit when no thread search data is cached, and return a generic 500 response from the cleanup endpoint while documenting the sanitized error behavior.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-03-24 00:36:08 +08:00
DanielWalnut
76803b826f
refactor: split backend into harness (deerflow.*) and app (app.*) (#1131)
* refactor: extract shared utils to break harness→app cross-layer imports

Move _validate_skill_frontmatter to src/skills/validation.py and
CONVERTIBLE_EXTENSIONS + convert_file_to_markdown to src/utils/file_conversion.py.
This eliminates the two reverse dependencies from client.py (harness layer)
into gateway/routers/ (app layer), preparing for the harness/app package split.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* refactor: split backend/src into harness (deerflow.*) and app (app.*)

Physically split the monolithic backend/src/ package into two layers:

- **Harness** (`packages/harness/deerflow/`): publishable agent framework
  package with import prefix `deerflow.*`. Contains agents, sandbox, tools,
  models, MCP, skills, config, and all core infrastructure.

- **App** (`app/`): unpublished application code with import prefix `app.*`.
  Contains gateway (FastAPI REST API) and channels (IM integrations).

Key changes:
- Move 13 harness modules to packages/harness/deerflow/ via git mv
- Move gateway + channels to app/ via git mv
- Rename all imports: src.* → deerflow.* (harness) / app.* (app layer)
- Set up uv workspace with deerflow-harness as workspace member
- Update langgraph.json, config.example.yaml, all scripts, Docker files
- Add build-system (hatchling) to harness pyproject.toml
- Add PYTHONPATH=. to gateway startup commands for app.* resolution
- Update ruff.toml with known-first-party for import sorting
- Update all documentation to reflect new directory structure

Boundary rule enforced: harness code never imports from app.
All 429 tests pass. Lint clean.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* chore: add harness→app boundary check test and update docs

Add test_harness_boundary.py that scans all Python files in
packages/harness/deerflow/ and fails if any `from app.*` or
`import app.*` statement is found. This enforces the architectural
rule that the harness layer never depends on the app layer.

Update CLAUDE.md to document the harness/app split architecture,
import conventions, and the boundary enforcement test.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* feat: add config versioning with auto-upgrade on startup

When config.example.yaml schema changes, developers' local config.yaml
files can silently become outdated. This adds a config_version field and
auto-upgrade mechanism so breaking changes (like src.* → deerflow.*
renames) are applied automatically before services start.

- Add config_version: 1 to config.example.yaml
- Add startup version check warning in AppConfig.from_file()
- Add scripts/config-upgrade.sh with migration registry for value replacements
- Add `make config-upgrade` target
- Auto-run config-upgrade in serve.sh and start-daemon.sh before starting services
- Add config error hints in service failure messages

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix comments

* fix: update src.* import in test_sandbox_tools_security to deerflow.*

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: handle empty config and search parent dirs for config.example.yaml

Address Copilot review comments on PR #1131:
- Guard against yaml.safe_load() returning None for empty config files
- Search parent directories for config.example.yaml instead of only
  looking next to config.yaml, fixing detection in common setups

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: correct skills root path depth and config_version type coercion

- loader.py: fix get_skills_root_path() to use 5 parent levels (was 3)
  after harness split, file lives at packages/harness/deerflow/skills/
  so parent×3 resolved to backend/packages/harness/ instead of backend/
- app_config.py: coerce config_version to int() before comparison in
  _check_config_version() to prevent TypeError when YAML stores value
  as string (e.g. config_version: "1")
- tests: add regression tests for both fixes

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix: update test imports from src.* to deerflow.*/app.* after harness refactor

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-14 22:55:52 +08:00