14 Commits

Author SHA1 Message Date
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
green3sf
788a890bd0
fix(tui): preserve transcript scroll position (#4975)
* fix(tui): preserve transcript scroll position

* test(tui): cover output during queued paging
2026-08-25 20:15:08 +08:00
Nan Gao
c542185a7f
feat(extensions): add gateway contribution points and packaged extension management (#4780)
* feat(extensions): add gateway services and routers

* feat(extensions): add standalone reference extension

* fix(extensions): harden contributed gateway routes

* docs(extensions): document gateway contribution points

* feat(extensions): add operator CLI for packaged extension management

Add `deerflow extensions install/list/enable/disable/remove` plus the root
`make extension-*` wrappers, backed by an `ExtensionManager` that owns one
transaction over backend/pyproject.toml, backend/uv.lock, the managed source
snapshot, the uv environment, and the `plugins:` block in config.yaml.

Install accepts a package requirement, a public HTTPS Git URL, or a local
directory. Local directories are copied to backend/extensions/sources/ as
deployable snapshots rather than editable installs, and the root .dockerignore
re-includes that tree so snapshots reach the backend builder. Remote sources are
HTTPS-only; SSH Git, file:// and local wheels are rejected because the stock
Docker builder cannot reproduce them.

Because environment configuration can still resolve a plain package name to a
local wheel (a UV_FIND_LINKS wheelhouse, say), every uv add/remove is followed
by an audit of the new lock: any local reference the stock image build cannot
reproduce rolls back the whole transaction. A config carrying duplicate
top-level `plugins:` keys is rejected outright rather than managed against one
block while the Gateway reads another.

Dependency synchronization now has one lock authority. The `extensions`
dependency group joins [tool.uv].default-groups, every startup path syncs the
same lock with --locked and launches with --no-sync, and the Docker images move
to uv 0.11.1 for the --no-workspace boundary the manager needs.

Loader gains `enabled`, `name` and `package` fields so a disabled extension is
skipped before resolution and import.

Co-authored-by: Codex <codex@openai.com>

* fix(extensions): stop the managed plugins rewrite from destroying config

Two data-safety defects in the managed `plugins:` block writer.

The "next top-level key" boundary was a regex matching only
`[A-Za-z_][A-Za-z0-9_-]*` or a quoted key. `AppConfig` is `extra="allow"`, so a
config may legally carry any top-level key, and a key the pattern cannot
recognize did not fail loudly — it read as "no next section", and the rewrite
replaced that neighbour and its entire subtree with the managed block. `my.key`,
`2fa`, `$schema`, `my key` and non-ASCII keys were all silently deleted by a
plain `extension-enable`/`disable`. Both boundaries now come from the YAML
parser's node marks, so key shape is irrelevant.

The file-final branch never consulted the trailing-comment scan the has-next-key
branch used, so any comment below the block was dropped. Since the manager
appends `plugins:` at end of file, that is the steady-state shape for most
installs: an operator note below the block was destroyed on the next toggle.

Separately, every managed install wrote `required: true` while the loader
defaults to false. That turned any later load failure — broken wheel, missing
native library, deleted snapshot — into a Gateway startup abort recoverable only
with shell access. New records are now written `required: false`, with an
explicit `install --required` opt-in; adopting an existing hand-written record
still preserves the operator's own choice.

* fix(extensions): harden the manager transaction and correct its docs

Follow-up hardening on the extension package manager.

Security posture, which the docs already claimed:
- Scrub `UV_PYTHON`, `UV_INSECURE_HOST`, `UV_CONSTRAINT` and
  `UV_NO_BUILD_ISOLATION` from the controlled uv environment. `UV_PYTHON` swaps
  the interpreter that the entry-point probe then imports and calls, and every
  later `uv run --no-sync` startup uses; `UV_INSECURE_HOST` removes the TLS
  validation the HTTPS-only source rule depends on. Neither is an index, proxy,
  cache or credential-provider setting, so neither was covered by the carve-out.
- Recognize run-together and all-caps secret query parameters (`accesstoken`,
  `ACCESSTOKEN`, `key`, `pw`, `sas`, `code`). The camel-case splitter only fires
  on case transitions, so only the separated spellings were caught. Short
  generic words stay boundary-anchored, so `?keyword=` remains installable.
- Validate the config before running any uv command. `uv add`/`uv sync` execute
  the package's build backend, so a config the manager could never write to must
  fail before that code runs rather than afterwards through rollback.

Transaction integrity:
- Run the second dependency-file restore from a `finally`. The recovery sync
  runs without `--locked` when the checkout had no lock, so uv writes one while
  resolving; if that sync then failed, the restore was skipped and the operator
  kept a lock file they never had. A failing recovery sync now also reports the
  original failure instead of replacing it.
- Skip the recovery sync on cancellation. Answering Ctrl-C with a full
  dependency resolve invites a second interrupt that escapes the handler and
  strands the checkout mid-transaction; the declarations are already restored
  and the next locked startup sync reconciles the environment.
- Retry a non-blocking lock on Windows instead of using `msvcrt.LK_LOCK`, which
  gives up after ~10s — far shorter than a real `uv add` plus `uv sync`, so
  contention surfaced as `Permission denied` rather than serializing.
- Locate the entry-point probe's JSON payload instead of parsing stdout's first
  line, so a `sitecustomize`/`.pth` banner cannot roll back a good install.
- Warn when the lock records a loopback source. `127.0.0.1` inside the image
  builder is a different machine, but unlike an environment-driven wheelhouse
  resolution this is a source the operator typed deliberately, so it is reported
  rather than rolled back. Private-network indexes are untouched: a builder on
  that network can reach them.

Docs: the blanket claim that failed operations restore the config file was
wrong — the conflict branches deliberately preserve a concurrent external edit
and leave `remove` deactivated. Document that, the `required: false` default,
the config preflight, the interrupt behaviour, and where the plugins-block
boundaries come from.

* test(gateway): pin the request-path projection agreement

`get_request_route_path()` imports the private
`starlette._utils.get_route_path` so the auth and CSRF predicates classify
the exact string Starlette's router matches on. Its requirement is not
"strip root_path correctly" but "return what the dispatcher is matching",
so delegating to the router's own implementation keeps the two in lockstep
by construction. Keep the private import rather than vendoring a copy: an
import that disappears fails loudly at startup, while a stale copy diverges
silently at a security boundary.

Cover the property directly instead of the mechanism, so the tests survive
a future reimplementation:

- projection edge cases, including the segment-boundary guard that keeps
  root_path="/api" from slicing "/apifoo/models" into a string the router
  would never match
- agreement with the router under nested mounts
- the two bypasses these predicates exist to prevent: a protected route
  mounted under the "/health" public prefix must still 401, and a POST
  mounted under "/api/webhooks" must still require a CSRF token

Both are verified to fail when the projection is reverted to
`request.url.path` (9/13 red) and when a plausible vendored copy omits the
boundary guard (the 2 boundary cases red).

Declare starlette as a bounded direct dependency so a bump — which is
security-relevant here — shows up in review rather than arriving silently
through FastAPI.

* ci: pin uv to the version production ships

ExtensionManager is not a consumer of uv the build tool -- it is a program
whose whole job is driving `uv` as a subprocess, depending on its CLI
behavior (`--no-workspace`, `--no-sync`, what `uv add` writes into
`[dependency-groups] extensions`) and on the `uv.lock` serialization format.
uv is closer to a runtime dependency with a contract than to incidental
tooling.

backend/Dockerfile pins that binary to 0.11.1, but all eight
astral-sh/setup-uv steps installed whatever was latest at run time, so CI
exercised the manager against a uv that is not the uv production runs. The
sharpest failure that allows: a newer uv bumps uv.lock's `revision`, CI
stays green because the same uv reads back what it wrote, and the pinned uv
in the production image cannot read the committed lock. `uv lock --check`
is version-sensitive for the same reason -- it verifies the lock is what
*this* uv would produce, and two versions can emit equivalent but
non-identical output.

Pin every step to 0.11.1 and lift the one lingering setup-uv@v3 to v7 so
the steps share input and caching behavior.

Pinning alone drifts apart again on the next bump, so add a constraint test
in the style of test_compose_default_bind_host.py: the Dockerfile's
UV_IMAGE tag is the single source of truth, and both compose defaults plus
every setup-uv step must match it. Verified to fail when a pin drifts, when
a step omits `version`, and -- the real scenario -- when the Dockerfile is
bumped alone, which lights up the workflows and both compose files at once.

* fix(gateway): state the extension route auth limit and abort a failed dev sync

Two scoped review follow-ups.

README: contributed routers cannot enter the host's reserved public prefixes,
which makes every extension endpoint session-authenticated -- there is no way
to expose an unauthenticated route. The rejection rule was documented but its
consequence was not, so inbound provider webhooks and public status endpoints
read as merely undocumented rather than out of scope for this release.

docker/dev-entrypoint.sh: the self-heal retry reuses `--locked`, so it repairs
a corrupt .venv but never a lock that disagrees with pyproject.toml. `set -e`
already stopped the script there -- uvicorn was not being started against a
stale environment -- but it exited on a bare uv exit code with no indication of
what to do. Abort explicitly with the cause and the fix.

Tests slice the sync block out of the real script and run it against a stub uv,
so they exercise the shipped code rather than a copy of it (/app/backend only
exists inside the container). They cover the success path, the retry that
recovers, the abort, and the guidance. Verified against the pre-fix script:
only the guidance case goes red, confirming the abort itself was already
correct.

* fix(extensions): point Git SSH shorthand at the HTTPS correction

Git's SCP-like shorthand carries no URL scheme, so `git+git@host:org/repo.git`
reached the scheme rules looking like a bare path and was rejected with
"local path references are not deployable; pass a local directory so DeerFlow
can snapshot it". The operator asked for a remote source, so that guidance
points at the wrong fix. Detect the shorthand ahead of the scheme rules and
report the public-HTTPS correction instead.

The bare `git@host:org/repo.git` spelling took a different wrong turn: packaging
parses it as a direct reference named `git`, leaving `host:org/repo.git`, whose
`host` reads as a URL scheme and produced the generic HTTPS message. Both
spellings now share one message, as does the PEP 508 named form.

* docs: keep the root extension summary within its new budget

#4799 split the depth out of the module guides and added a size gate; the root
file's job is now orientation, and this branch had pushed it 192 bytes past the
soft limit. The manager transaction, source rules, and lock discipline are
already stated in full in the extensions guide, so the root keeps the one-line
orientation and points there instead of restating them.

---------

Co-authored-by: Codex <codex@openai.com>
2026-08-13 23:55:30 +08:00
Ryker_Feng
ccff5f5ce7
docs: govern agent guidance size (#4799)
* docs: govern agent guidance size

* refactor: split agent guidance by code scope

* Clarify virtual path handling in AGENTS.md

Updated the translation section to clarify the role of `LocalSandboxProvider` and the handling of virtual paths in the tool layer.

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-08-13 21:49:04 +08:00
Felix Wang
61c153ff09
feat(tui): add transparent terminal background (#4631)
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-08-05 08:15:28 +08:00
Xinmin Zeng
11bb8ddcd9
fix(cli): allow overriding agent recursion limit (#4615) 2026-08-04 08:33:10 +08:00
Vanzeren
095092418c
fix(gateway):unify thread id validation (#4589)
* fix(gateway): unify thread ID validation at the API boundary

Thread ID entry points accepted arbitrary strings while downstream
consumers (filesystem paths, Kubernetes Provisioner, JSONL event store)
each enforced different character restrictions, so invalid IDs were
persisted first and only failed later during sandbox/workspace init.

Centralize validation in deerflow.utils.thread_id (pattern
^[A-Za-z0-9_-]{1,64}$): validate at routers, RunCreateRequest,
scheduler dispatch, paths.py, JSONL store, embedded client, and align
the Provisioner pattern (pinned by a parity test). UUIDs are still
generated only when no ID is supplied; caller-supplied opaque IDs stay
supported.

Deliberate exceptions: DELETE /threads/{id} keeps str as the legacy
cleanup escape hatch (filesystem cleanup guarded), read-only
client.get_thread stays unvalidated, and scheduler rows with legacy
invalid IDs record a failed dispatch instead of raising out of the
poll loop.

* docs: document canonical thread ID contract

README: caller-supplied thread IDs need not be UUIDs; the canonical
pattern and per-endpoint behavior. AGENTS.md: the shared
deerflow.utils.thread_id contract, its enforcement boundaries, and the
legacy-ID escape hatches.

* fix(gateway): close thread ID validation gaps at remaining entry points

Follow-up to the canonical thread ID contract: a full audit found the
uniform-422 coverage only reached about half of the thread_id surfaces.

- routers: 18 routes still took a bare thread_id: str — 13 in
  thread_runs.py (including the five messages/events/workspace-changes
  reads that returned 500 on the JSONL event store vs 404/empty on the
  DB store), 4 read routes in threads.py, and the suggestions route
  flagged in review. DELETE /api/threads/{id} keeps str as the declared
  legacy-cleanup escape hatch.
- client: upload_files/delete_upload/list_uploads/get_artifact now
  validate up front, fulfilling the RFC's 'all mutating entry points'
  clause (get_thread stays unvalidated as the declared legacy read path).
- tui: the /resume literal-ref fallback validates against the canonical
  contract and reports a descriptive error instead of failing deep in
  the client.
- scripts/support_bundle.py: replace the drifted dot-allowing pattern
  with a byte-identical copy of THREAD_ID_PATTERN (kept local so the
  script still runs with a broken venv).

* test(gateway): guard the canonical thread ID contract against regressions

- test_thread_id_route_contract.py: static AST sweep asserting every
  route handler with a thread_id parameter annotates ThreadId
  (whitelist: the DELETE escape hatch), plus a runtime sweep hitting
  all 44 thread_id routes with a non-canonical ID and asserting a 422
  that names thread_id, plus a websocket upgrade-rejection case.
- test_thread_id_validation.py: client entry-point validation,
  support_bundle pattern parity, and TUI literal-ref fallback tests.
- Align two tests that encoded the old contract (dotted IDs).
2026-08-01 19:42:44 +08:00
Ryker_Feng
8dafb667dd
fix(tui): derive /help text from the command registry (#4327)
The /help string was hardcoded and had drifted from BUILTIN_COMMANDS,
omitting six real commands (help, switch, resume, uploads, artifacts,
details) and ordering the rest differently from the picker. Generate the
command line from the registry so /help can never fall out of sync again,
and add parity tests that guard against future drift.
2026-07-22 07:53:50 +08:00
Ryker_Feng
24a45a4e68
feat(tui): add clear command (#4306) 2026-07-20 23:56:37 +08:00
Daoyuan Li
13afef6278
fix(tui): interrupt an active run before /quit exits (#4235)
_handle_builtin's "quit" branch called self.exit() unconditionally,
unlike action_interrupt (Ctrl+C), which checks self._streaming and
interrupts before any teardown. During an active run, /quit tore the
app down while the worker thread was still live; the next
call_from_thread call from that orphaned thread then failed silently
(the app's loop is gone), quietly abandoning the in-flight turn and any
post-run persistence such as the thread title.

Mirror action_interrupt's check: if self._streaming, run the same
interrupt/cleanup path before calling self.exit(). /quit still always
exits -- it now just does so safely.

Adds a regression test using a fake client that blocks mid-stream (a
real worker thread genuinely stuck, not a hand-flipped flag) to catch
/quit during a run, plus a Ctrl+C contrast test under the same setup.
2026-07-17 15:48:45 +08:00
Daoyuan Li
6ef0aa2aea
fix(tui): stop empty-id assistant deltas from merging across turns (#4201)
_apply_assistant_delta matched AssistantDelta.id anywhere in the transcript,
which is correct for a genuine per-message id but not for an empty one.
runtime._as_str() coerces a missing/None chunk id to "", and that value is
shared by every id-less chunk from every turn, not just the current one.
Once one assistant row had id="", every later, unrelated AssistantDelta that
also carried id="" (e.g. from a provider that never stamps per-chunk ids)
matched that same stale row instead of starting a fresh one, silently
folding a second turn's answer backward into the first turn's bubble.

Route empty-id deltas to a dedicated path that tracks the current turn's
row by position (streaming_anonymous_row_index, reset on RunStarted/
RunEnded/ClearRows) instead of by id, mirroring the existing empty-id guards
in _apply_tool_started/_apply_tool_result but adapted for assistant text:
unlike a tool call, an id-less assistant delta still needs to be displayed,
so it starts a new row rather than being dropped. Multiple id-less chunks
legitimately arrive within one turn (per-token streaming), so they keep
coalescing into that row -- but only while it is still the transcript tail;
once a tool card is appended after it (the same way a genuine id naturally
changes across a tool round-trip), the next empty-id delta starts fresh
instead of reaching backward past the tool card.

Add regression coverage for the cross-turn merge, same-turn coalescing,
the tool-call-interleaved edge case, and non-interference with the
existing id-keyed path.
2026-07-15 22:27:00 +08:00
黄云龙
b650456c6d
fix(streaming): drop silent delta-discard in _merge_stream_text (#4085)
The dual-mode _merge_stream_text used short-circuits chunk==existing
and existing.endswith(chunk) that silently dropped legitimate delta
chunks in messages-tuple mode:

- CJK reduplication: '谢谢' tokenized as ['谢','谢'] -> buffer stays '谢'
- Repeated tokens: 'gogo' as ['go','go'] -> buffer stays 'go'
- Suffix-matching tails: 'hello' as ['hel','l','o'] -> drops 'l'

Delta payloads must always append; only strictly-longer cumulative
snapshots should replace. The fix gates the cumulative-replace branch
with len(chunk) > len(existing) and removes the dropped-shape guards.

Both copies are fixed:
- app/channels/manager.py (IM streaming to Feishu/Telegram/etc.)
- deerflow/tui/view_state.py (TUI client rendering)

The TUI reduce() caller now handles exact re-sends (values snapshot
re-emitting history) before the merge, and the len>1 guard prevents
single-char CJK deltas from being mistaken for re-sends.

Co-authored-by: Claude <noreply@anthropic.com>
2026-07-12 12:13:02 +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
DanielWalnut
ef5f54c5bf
feat(tui): Hermes-like terminal workbench (deerflow) backed by DeerFlowClient (#3760)
* feat(tui): add Hermes-like terminal workbench backed by DeerFlowClient

Implements the `deerflow` TUI from RFC #3540: a terminal-native, embedded
workbench over the existing harness (no Gateway/frontend/nginx/Docker), built
Python-native with Textual and learning UX patterns from tao-pi.

Architecture — every layer except the Textual app is pure and unit-tested:
- view_state.py: ViewState + reduce(state, action), the testable heart
- runtime.py: StreamEvent -> reducer actions (pure translate + threaded driver)
- message_format / command_registry / input_history / render / theme: pure
- app.py: Textual App; runs the sync DeerFlowClient.stream() on a worker thread
  and marshals actions back to the UI thread. Slash command palette, model and
  thread modal pickers, ↑/↓ history, Ctrl+C interrupt, TTY-aware fallback.
- cli.py: pure launch-mode planning + headless --print/--json + `deerflow`
  console script (textual is an optional [tui] extra; degrades to headless help)

Web UI visibility (the RFC's key decision): persistence.py writes a threads_meta
row under the local default user into the same DB the Gateway reads, so terminal
sessions appear in the Web UI sidebar without running the Gateway. Best-effort,
no-op on the memory backend; all DB work on one long-lived background loop.

Tests: 95 TUI tests — pure layers via pytest, app/palette/overlays via Textual's
pilot harness with a fake session, and a threads_meta read/write round-trip.
ruff clean; respects the harness->app import boundary. Docs: backend/docs/TUI.md
plus CLAUDE.md/README updates and preview screenshots.

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

* fix(tui): de-duplicate streamed assistant text and tool cards; keep Tab in composer

Self-test surfaced three issues, all root-caused to consuming non-strict
streaming from DeerFlowClient (proven by the client's own
test_dedup_requires_messages_before_values_invariant, which shows the client can
re-emit a message id's full content twice):

- Assistant text was doubled (e.g. "answer answer") because the reducer blindly
  concatenated same-id deltas. Now merges by content: a re-send or cumulative
  snapshot replaces; only genuine increments append.
- Tool activity showed duplicate and empty "gear" cards from partial/re-emitted
  tool-call chunks. ToolStarted now de-dupes by tool_call_id, drops id-less
  noise chunks, and fills the name on a later chunk; a tool result with no prior
  card still surfaces as a completed card.
- Tab moved focus off the composer to the scroll region (felt like broken cursor
  logic). Tab is now consumed by the composer (completes a command when the
  palette is open, no-op otherwise).

Adds reducer tests for each case plus a Tab-focus test; 102 TUI tests pass.

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

* fix(tui): make Esc interrupt an active run (matches the status hint)

The status line advertised "esc interrupt" but Esc was only wired to close the
slash palette, so it did nothing during a run. Esc now: closes the palette when
open, interrupts the active run when streaming, and is a no-op when idle. The
interrupt logic is shared with Ctrl+C via _interrupt_run(). Adds a regression
test.

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

* fix(tui): stop prior answers duplicating on threads with history

On a thread with history, DeerFlowClient re-emits every prior message on each
new turn (its streamed_ids dedup is per-stream-call), and a re-emitted older
message can arrive after a newer message has already started. The reducer only
matched the *most recent* assistant row by id and otherwise appended, so each
re-emitted older answer was duplicated verbatim at the end of the transcript.

Match an assistant row by id anywhere in the transcript and merge in place.
Tool cards already de-dupe by call id globally, so they were unaffected.

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

* fix(tui): correct CJK cursor drift in the composer

Confirmed a Textual Input bug (latest 8.2.7): Input._cursor_offset adds an
unconditional +1 at the end of the value, overshooting by one cell after
double-width (CJK) characters. That misplaces the hardware/IME cursor — the
drift seen when typing Chinese in iTerm2 (the on-screen block cursor, drawn
separately in render_line, is fine; English doesn't use an IME so it looks
correct). Reproduced with a bare Input, so it's upstream, not our layout.

Add ComposerInput(Input) overriding _cursor_offset to the true cell position and
use it for the composer. Numeric tests pin the CJK end/mid and ASCII cases.

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

* feat(tui): render finalized assistant messages as Markdown

The transcript showed raw Markdown (literal **bold**, ## headings, - lists,
links). Finalized assistant messages now render as Rich Markdown — headings,
bold/italic, lists, inline code + code blocks, blockquotes, horizontal rules and
links — with the ● speaker marker aligned to the top of the body.

The actively-streaming message stays plain text so partial Markdown doesn't
reflow/jump, then snaps to its rendered form when the run ends. Transcript
re-renders are coalesced on a ~60ms timer (dirty flag) so per-token Markdown
re-parsing stays smooth on long threads. Tests cover both the rendered and the
streaming-plain paths.

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

* style(tui): apply ruff format

CI lint runs `ruff format --check` via uvx (latest ruff); apply the formatter so
the lint-backend job passes. No behavior change.

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

* chore(tui): address code-quality review comments

From github-code-quality[bot] on #3760:
- runtime.py: give the `_ClientLike` Protocol method a docstring body instead of
  a bare `...` (flagged as a no-effect statement), matching the harness
  convention for Protocol stubs (e.g. SafetyTerminationDetector).
- test_tui_cli_main.py: drop the unnecessary `lambda: _FakeSession()` wrappers in
  monkeypatch.setattr; pass `_FakeSession` directly (same behavior).

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

* fix(tui): keep history Markdown-rendered when a follow-up run starts

Previously the transcript rendered "the last assistant row" as plain text while
streaming. But when a follow-up turn starts, the last assistant row is the
*previous, finalized* answer until the new message begins — and the client
re-emits prior messages early in the turn — so sending a follow-up reverted the
previous answer from rendered Markdown back to raw text.

Track the actively-streaming message id in ViewState instead: it's reset on
RunStarted, set only when an AssistantDelta actually adds new content (history
re-emits are no-ops and don't mark it), and cleared on RunEnded. The renderer
keeps only that one message plain; all history stays Markdown.

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

* docs(readme): add Terminal Workbench (TUI) section to root README

Mention the new `deerflow` TUI alongside the Embedded Python Client in the root
README.md and README_zh.md (install, launch/headless commands, feature summary,
Web UI visibility), with a ToC entry and a preview screenshot. Links to
backend/docs/TUI.md for the full guide.

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

* fix(tui): address review feedback (willem-bd)

Ten findings from the TUI code review:

1. /resume was dead-ended — registered + in /help + tested as a builtin, but no
   dispatch branch. Wired it to thread resolution / the switcher.
2. --resume <title> was forwarded raw into the checkpointer (blank thread).
   Added Session.resolve_ref() to resolve id-or-title via list_threads; used by
   --resume and /resume.
3. str(get("id","")) returned "None" for an explicit id:None (truthy), defeating
   the empty-id guard so unrelated null-id tool calls collapsed into one card.
   Coerce via a None-safe helper.
4. Headless --print/--json no longer spin up the persistence loop/engine/pool
   (open_session(persistence=False)).
5. _LoopThread + engine are now closed: Session.close() (dispose engine + stop
   loop) called from a try/finally around app.run().
6. --cli --continue (and piped --cli) now run headless instead of erroring.
7. Cancelled runs no longer persist a truncated title (guard on _cancelled).
8. Palette highlight resets to the top when the filter set changes.
9. Dropped the never-populated tools count from the header.
10. Documented the `not row.error` merge guard.

Adds regression tests for each; 126 TUI tests pass, ruff check + format clean.

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

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
2026-06-25 20:10:49 +08:00