Decompose children inherit the root's literal workspace_path (#37172),
so every sibling of a worktree-kind root points at the SAME checkout.
_resolve_worktree_workspace's existing-checkout shortcut then reuses
that directory on whatever branch is currently checked out, ignoring
the task's own branch_name. Net effect: sibling workers — which can be
promoted and dispatched concurrently — run in one directory on the
first sibling's branch, with no lock. Work lands on the wrong task's
branch (provenance corruption) and concurrent siblings trample each
other's index/tree.
Fix, two layers:
- decompose_triage_task: worktree-kind children no longer inherit the
root's literal path; each child materializes its own
<repo>/.worktrees/<child-id> at dispatch (dir/scratch inheritance
unchanged — children legitimately share those).
- _resolve_worktree_workspace: when the requested path is an existing
checkout of a DIFFERENT branch, fall back to a fresh
<repo>/.worktrees/<task-id> instead of silently reusing it (heals
rows that already carry a shared path). Same-branch reuse and the
no-repo/own-path degenerate cases keep the legacy behaviour.
Tests: tests/hermes_cli/test_kanban_worktree_isolation.py (5); full
test_kanban_db.py + test_kanban_decompose_db.py suites pass unchanged.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Default kanban_create children now keep fresh scratch paths, while explicit dir sharing remains supported and project context resolves to a per-task worktree. Surface resolved workspace fields in create responses/events and cover scratch mutation, nesting, explicit sharing, and project inheritance.
Fixes#67567
Adds the missing write path for the per-task model_override column (which
was previously only settable via manual SQL) and pairs it with a
provider_override so cross-provider switches resolve correctly:
- kanban_db: provider_override column (+migration), set_model_override()
with model_override_set event, create_task(model_override=,
provider_override=), dispatcher spawns worker with -m <model>
[--provider <name>]
- dashboard: Model row in the task drawer — dropdown fed by a new
/model-options endpoint (build_models_payload substrate, provider-grouped,
free-text fallback), PATCH + bulk model override support
- CLI: kanban create --model/--provider, new kanban set-model subcommand,
show prints the provider
- agent tools: kanban_create accepts model/provider; show/list expose
provider_override
Rate-limit recovery flow: override is settable on running tasks and takes
effect on the next dispatch, without touching the worker profile's config.
Adds kanban_db.repair_db() — a structured, non-raising wrapper around
the same narrow repair policy as the connect-time guard: probe with
PRAGMA integrity_check under the board's cross-process init flock;
quarantine the corrupt bytes FIRST via the content-addressed backup;
REINDEX only when every integrity message is index-scoped; re-check;
report ok / repaired / corrupt / missing. Locked/busy OperationalError
still propagates raw (a locked healthy DB is not corruption and gets
no quarantine), and a repair invalidates the per-process healthy-path
cache so the next connect() re-probes.
The CLI verb reports status human-readably (or --json), exits 0 for
ok/repaired/missing and 1 when the DB is still corrupt (non-index
corruption stays fail-closed with manual-recovery guidance). It
dispatches BEFORE kanban_command's auto-init: init_db() raises
KanbanDbCorruptError on a corrupt board, which previously would have
made a repair verb unreachable on exactly the boards that need it.
CLI tests drive the real argparse surface (build_parser +
kanban_command) against real corrupted SQLite fixtures.
Kanban connections set wal_autocheckpoint=100, but SQLite's passive
autocheckpoint backs off whenever any reader holds an open snapshot —
on a busy multi-process board the -wal file can grow without bound
between gateway restarts.
After each successful dispatch tick, while still holding the board's
single-writer dispatch flock, run PRAGMA wal_checkpoint(TRUNCATE)
best-effort at a coarse interval (>=5 min since this process last
checkpointed that board; module-level per-path monotonic timestamp, so
multi-board dispatchers checkpoint each board on its own clock).
Success and busy/locked skips are both logged at DEBUG; a failing
checkpoint can never fail the tick.
Content-addressed quarantine backups dedupe identical corrupt bytes,
but corruption that keeps mutating between failures (partial repairs,
further damage across dispatcher retries, multi-profile fleets) mints a
new sha-named backup every round — a user accumulated 124
.corrupt.*.bak files with no bound.
After each NEW backup is created, prune oldest-by-mtime backups beyond
_CORRUPT_BACKUP_RETENTION (module constant, default 10), including the
copied -wal/-shm sidecars. The just-created backup is always exempt
(copy2 preserves the source mtime, which can be older than existing
backups). Pruning is best-effort and never masks the corruption error
about to be raised; dedupe of identical corrupt bytes is unchanged.
_guard_existing_db_is_healthy previously failed closed on ANY
integrity_check failure, including the index-scoped class ('wrong # of
entries in index <name>' / 'row N missing from index <name>') where the
table b-trees are intact and REINDEX rebuilds the damaged indexes
losslessly. Boards hit by that class were bricked until manual surgery
even though SQLite can fix them in-place.
Now, when integrity_check output consists ONLY of index-scoped errors
(index name parsed generically from the message — no hardcoded list):
1. quarantine the corrupt bytes FIRST via the existing content-
addressed _backup_corrupt_db,
2. under the caller-held cross-process init flock, REINDEX each named
index (falling back to bare REINDEX if a parsed name doesn't
resolve),
3. re-run integrity_check and proceed only if it comes back clean.
Any non-index error class (page corruption, malformed image, freelist
damage) — or a REINDEX whose re-check is still dirty — fails closed
exactly as before: backup + KanbanDbCorruptError, no silent recreation.
Transient OperationalError (locked/busy) still propagates raw with no
quarantine.
Tests build a real board DB and corrupt a live index via the
writable_schema/partial-index REINDEX trick to produce the genuine
'wrong # of entries in index' shape, then assert auto-repair recovers
with data intact, page corruption still raises, and a dirty re-check
fails closed.
The salvaged attachment-toolset commit predated main centralizing the
25 MB cap as kanban_db.KANBAN_ATTACHMENT_MAX_BYTES and re-introduced a
private _MAX_ATTACHMENT_BYTES alias. Drop the duplicate: kanban_db's
store_attachment_bytes(), the dashboard upload endpoint, and the
kanban_attach_url tool all reference the one shared constant now, and
the tests monkeypatch that same name.
The kanban board has had full attachment storage and a dashboard HTTP
API (upload/list/download/delete) since #35338, but there was no agent
toolset tool and no `hermes kanban` CLI verb for attachments. Agents and
scripts that don't go through the dashboard server (or can't touch the DB
directly) had no way to create or read real attachments — only links in
comments.
Close that gap by mirroring the existing comment surface:
- `kanban_db.store_attachment_bytes()` — one shared write path (validate
name, enforce the 25 MB cap, write the blob under the per-task dir with
collision-free naming, insert the metadata row, clean up an orphan blob
if the insert fails). `_MAX_ATTACHMENT_BYTES`, `_safe_attachment_name`,
and a new `_collision_free_path` move here so the dashboard, the tool,
and the CLI all share one implementation and can't drift.
- Tools (`tools/kanban_tools.py`): `kanban_attach` (inline base64),
`kanban_attach_url` (server-side http/https fetch with the same cap),
`kanban_attachments` (list). Write tools respect worker task-ownership;
list is read-only. Registered in the `kanban` toolset.
- CLI (`hermes_cli/kanban.py`): `attach <id> <path>`, `attachments <id>`,
`attach-rm <attachment_id>`.
- Dashboard `upload_task_attachment` now imports the shared helpers and
uses `_collision_free_path` — behavior identical (still streams to disk
with the cap, still 413 on overflow).
- Docs (AGENTS.md, kanban-worker skill) and toolset membership updated.
Tests: tool round-trip + oversize + bad base64 + ownership; attach_url
against a local HTTP fixture incl. oversize-mid-stream and non-http
scheme rejection; CLI attach/attachments/attach-rm; shared-helper unit
tests; dashboard parity preserved.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Address the hermes-sweeper review of #61233: the bounded retry budget
is now a clean-exit-specific streak, not a share of the unified
consecutive_failures counter.
- detect_crashed_workers stamps a protocol_violation marker into the
violation run's metadata (via the event payload _end_run copies);
_protocol_violation_streak derives the streak from run history:
consecutive most-recent violation runs, rate_limited runs neutral
(mirroring their unified-counter treatment), any other closed run
resets it. Mixed failure kinds can neither consume nor extend the
budget.
- Below-budget violations no longer call _record_task_failure at all:
the task returns to ready with last_failure_error stamped directly
(including the corrective retry guidance wording adopted from #61817,
which build_worker_context surfaces to the retry worker) and the
unified counter is untouched, keeping the two budgets independent.
- At the bound the trip funnels through _record_task_failure with a new
keyword-only force_trip=True: the reaper has already resolved the
per-task max_retries override against the violation streak itself, so
the threshold comparison is skipped rather than double-applied.
max_retries keeps its documented top precedence in both directions:
max_retries=1 blocks on the first violation, max_retries=5 blocks on
the fifth consecutive one, unset uses the default bound of 3.
- Replace the first-violation-blocks regression test with five tests:
first occurrence retries (ready + guidance stamped + no gave_up +
unified counter untouched); streak trips exactly at the bound with
protocol_violations/protocol_violation_limit in the gave_up payload
and the auto-blocked side channel set; a prior nonzero crash does not
consume the violation budget; a non-violation failure between
violations resets the streak; max_retries precedence both directions.
All five fail against the previously reviewed diff and pass with this
follow-up. The test harness resolves hermes_cli.kanban_db fresh and
uses that single module object for the exit registry, liveness patch,
and reaper — earlier suite tests reload the module, and the old
mixed-object harness made _classify_worker_exit return unknown (the
reason the old test failed in full-suite runs on main).
Kanban suite: zero introduced failures vs upstream/main tip (62 vs 63
pre-existing environmental failures — the one no longer failing is the
old violation test this replaces; 662 passed vs 657).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
A worker that exits 0 without calling kanban_complete/kanban_block
(model stops early, transient tool wedge) tripped the failure breaker
on FIRST occurrence and the task was blocked. These are overwhelmingly
transient: with a bounded retry (limit 3, tracked via a violation
fingerprint) ~96%% of them complete on respawn. Genuine repeat
offenders still trip the breaker at the limit.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
_default_spawn sets HERMES_KANBAN_GOAL_MODE=1 but launched 'chat -q' without
-Q; _run_kanban_goal_loop_q only executes in the quiet single-query branch,
so goal-mode never ran for dispatcher-spawned workers — they got one turn,
printed text, exited rc=0, and tripped the protocol-violation circuit
breaker (2026-06-09, cards t_d9cbe312 et al). Root-cause report + upstream
issue draft in kanban workspace t_720c5c60.
Dragging a task done→ready did nothing: the respawn guard saw a run that
completed within the success window and deferred forever, unable to tell a
deliberate operator re-run from a status flap. Now a re-queue event
(status change, promote, unblock, reclaim) AFTER the completion bypasses
the recent_success guard, so an explicit done→ready runs again.
An inherited HERMES_TUI=1 or a `display.interface: tui` config default sent
kanban workers into the Ink TUI, whose no-TTY bail-out exits 0 without doing
the task — every attempt ended in "protocol violation". Two layers:
- _default_spawn pins `--cli` (highest-precedence interface flag) and strips
HERMES_TUI from the child env (covers older builds on PATH).
- _resolve_use_tui gates ambient TUI prefs (env/config) behind a real TTY;
an explicit --tui still wins so the informative bail-out stays reachable.
Multi-agent boards leak staleness: a sibling worker's parent handoff,
comment, or prior-attempt summary gets read by the next worker as live
truth even when it's a day old. build_worker_context surfaced the text
with (at best) a bare absolute timestamp, which an LLM reads as fact
regardless of age — parent results had no timestamp at all.
Adds a coarse relative-age stamp (just now / 18h ago / 3d ago) to every
recalled-state line and a one-line 'point-in-time snapshot, re-verify
against source' frame on the parent-results section, so the worker sees
when handoffs were produced and re-checks stale ones before acting.
Follow-up to #53791 addressing review feedback: the footgun checker treated
capture_output=/stdout=/stderr=/check_output as proof a subprocess can't pop a
Windows console. That invariant is false — stream redirection controls where a
child's output goes, not whether a console is allocated. From a console-less
parent (Desktop/Electron, pythonw.exe, detached gateway/cron) a console-subsystem
child still flashes a window even when fully captured.
- check-windows-footguns.py: capture/redirect/check_output is no longer a blanket
safe-pass. Added _WINDOWS_FLASHING_PROGRAMS (git/gh/npm/node/python/uv/ffmpeg/
docker/powershell/…); calls to those are flagged even when captured. Non-flashing
programs keep the capture exemption (no 271-site noise). _subprocess_compat.run/
popen calls are inherently safe (wrapper injects CREATE_NO_WINDOW).
- Routed the 35 genuine flashing git/gh/npm/uv/ffmpeg/docker spawns through the
_subprocess_compat.run/popen chokepoint (Brooklyn's wrapper from #53810) — the
durable fix, not per-site annotations. cmd.exe /c start stays # ok (intentional).
- Updated tests + CONTRIBUTING.md rule #17 to the corrected invariant.
* feat(kanban): typed block reasons + unblock-loop breaker
Stops the kanban blocked-task loop: a worker blocks a task, a cron
unblocks it, the worker re-blocks for the same reason, repeat forever.
block_task now takes a typed kind and a persistent block_recurrences
counter on the tasks table:
- kind=dependency routes to todo (parent-gated, auto-resumed), never
the human 'blocked' bucket a cron would keep unblocking.
- needs_input/capability/transient/untyped land in blocked; each
same-cause re-block after an unblock increments block_recurrences,
and at BLOCK_RECURRENCE_LIMIT (default 2) the task routes to triage
for a human instead of blocked.
- unblock_task no longer resets block_recurrences (the amnesia that
let the loop run unbounded); complete_task clears it on success.
Wired through the worker kanban_block tool (new kind arg) and the
hermes kanban block --kind CLI flag, both reporting where the task
actually landed. Docs + 11 new tests; 536 existing kanban tests green.
* test(kanban): make second-block notify test use a distinct block cause
test_notifier_second_blocked_delivers blocked the same task twice with
the same (untyped) reason, which now trips the new unblock-loop breaker
and routes the second block to triage instead of blocked — so only one
'blocked' notification fired. The test's actual intent is that TWO
distinct block cycles each notify; give the two cycles different kinds
(needs_input then capability) so they're genuinely separate blocks. The
same-cause loop→triage path is covered by test_kanban_block_kinds.py.
The kanban-worker and kanban-orchestrator bundled skills existed only to
be force-loaded into dispatcher-spawned workers, gated by
environments:[kanban] so they wouldn't leak into normal CLI listings.
That gating was fragile (the leak that #50443 patched) and the
--skills auto-load was already best-effort — most workers ran without it
because the bundled skill isn't present in profile-scoped skills dirs.
Remove the skills entirely and promote their load-bearing content
(workspace kinds, deliverable artifacts, created-card integrity, profile
discovery) into KANBAN_GUIDANCE, which is already injected into every
kanban worker's system prompt. Net result: every worker reliably gets
the guidance, nothing can leak into a CLI/blank-slate session, and the
gating machinery is gone.
- agent/prompt_builder.py: promote the 4 load-bearing rules into KANBAN_GUIDANCE
- hermes_cli/kanban_db.py: drop --skills kanban-worker auto-injection + _kanban_worker_skill_available probe
- hermes_cli/kanban_swarm.py: drop skills=[kanban-orchestrator] on the root card
- hermes_cli/kanban.py: drop kanban-init skill seeding; fix help text
- delete skills/devops/kanban-{worker,orchestrator}
- docs: delete the two skill pages (EN+zh), fix sidebars/catalog/kanban.md/kanban-worker-lanes.md and the video-orchestrator + codex-lane references
- tests: update spawn-argv expectations; re-bound the guidance-size guard
Supersedes the skill-leak half of #50443 (credit @helix4u for flagging the area).
After a worker crash + reclaim + respawn, the board could show a task in the
Ready lane while its task_run was 'running' and the new worker was actively
executing (#36910). The dispatcher could then treat live work as available and
double-assign.
Root cause: the three reclaim paths (detect_crashed_workers,
release_stale_claims heartbeat-stale backstop, enforce_max_runtime) each
snapshot a task's worker_pid/claim_lock, do liveness work, then reset
tasks.status back to 'ready' with only a 'WHERE status=running' guard. If the
task was reclaimed AND re-claimed by a NEW worker in between (new run, new
claim_lock, live pid), the stale UPDATE clobbered the live task: status flipped
to 'ready' while the fresh run stayed 'running'. claim_task is the only writer
that sets status='running', so nothing put it back — permanent desync.
Fix: gate each reset on the snapshot's claim_lock (and worker_pid where
available) so it only fires when the task is still owned by the worker the
reclaim was computed for. A stale reclaim now no-ops (rowcount 0) instead of
desyncing a re-claimed task. Genuine crashes (lock still matches) reclaim
exactly as before.
This is the same race class the in-gateway dispatch lock (single-writer ticks)
mitigates, closed at the row level so a single dispatcher's fast
reclaim->respawn across two ticks is also safe.
Closes#36910.
connect() wrapped its entire body in an unbounded blocking flock(LOCK_EX) on
every call (_cross_process_init_lock). A single process stalled inside the
critical section — or a stale lock held by a wedged worker — blocked every
other connect(), including the long-lived gateway dispatcher's next-tick
connect, forever. No timeout, no traceback, no recovery: the board silently
stopped being worked until a manual restart (issue #36644).
Two fixes:
1. Fast-path skip: once THIS process has initialized a path, the expensive
first-open work (header validation, integrity probe, schema + additive
migrations) is already cached in _INITIALIZED_PATHS. The steady-state
connect has nothing for the cross-process lock to protect, so it now opens
the connection (WAL + pragmas) under only the cheap in-process _INIT_LOCK
and never touches the file lock. This removes the lock from the dispatcher's
hot path entirely — a stalled external 'hermes kanban list' can no longer
block ticks.
2. Bounded acquire: even on first-init, _cross_process_init_lock now retries a
non-blocking acquire up to a 10s deadline, then logs a WARNING and proceeds
WITHOUT the cross-process lock. Safe because the in-process _INIT_LOCK still
serializes same-process threads and the init work is idempotent
(CREATE TABLE IF NOT EXISTS + additive migrations) — worst case is redundant
work, not corruption. A bounded 'proceed anyway' beats an unbounded hang.
Windows path switched LK_LOCK -> LK_NBLCK (non-blocking) to match.
Closes#36644.
_default_spawn launched the worker subprocess with cwd=workspace and set
HERMES_KANBAN_WORKSPACE, but never set TERMINAL_CWD — so the worker inherited
the dispatching gateway's TERMINAL_CWD. That value takes precedence over the
process cwd in two places:
- tools/file_tools.py::_resolve_base_dir — a relative write_file path resolved
against the gateway user's home instead of the workspace, so artifacts
silently landed outside the workspace (#41312).
- agent_init's context-file loader — AGENTS.md was discovered relative to the
gateway's cwd, so under multi-profile dispatch a worker loaded whichever
gateway won the claim race's AGENTS.md, not the task's (#34619).
Both are the same root cause. Pinning TERMINAL_CWD to the workspace (where the
task's work actually happens) fixes both. Guarded on an existing absolute dir
because file_tools rejects relative/sentinel TERMINAL_CWD values — a non-dir
workspace leaves the inherited value rather than writing a meaningless one.
Closes#34619, closes#41312.
Plugins could observe session/tool/approval lifecycle but had no way to
observe kanban task transitions. Adds three observer hooks fired by the
board's claim/complete/block transitions:
- kanban_task_claimed (dispatcher process, before worker spawn)
- kanban_task_completed (worker process, carries summary)
- kanban_task_blocked (worker process, carries reason)
Each fires AFTER the DB write txn commits, so a plugin observes durable
state and a slow/hanging callback can never hold the SQLite write lock.
All firing is best-effort: a raising hook is logged and swallowed and
never breaks a board transition. profile_name is resolved from
HERMES_HOME so dispatcher- and worker-side hooks carry the right profile.
Requested by @Smithangshu on Discord.
A shell-launched 'hermes gateway run --replace' / 'gateway restart' on a
systemd/launchd host can leave an orphan gateway whose kanban dispatcher
escapes the service cgroup, survives 'systemctl restart', and becomes a
second long-lived writer on the shared kanban.db. Two dispatchers that each
believe they own the file both pass SQLite busy_timeout and then race on WAL
frames — the documented root cause of multi-writer corruption (issue #35240).
The existing _guard_supervised_gateway_conflict startup guard blocks the
common way an orphan is born, but does nothing once a second dispatcher
already exists. This adds the defense-in-depth: dispatch_once now wraps every
tick in a non-blocking, board-scoped flock (_dispatch_tick_lock). A losing
dispatcher returns DispatchResult(skipped_locked=True) and does zero DB writes
this tick — so two dispatchers can never run a reclaim/spawn/write sequence
concurrently regardless of how the second one got there.
- Non-blocking (LOCK_NB): never stalls the gateway's async watcher.
- Board-scoped: lock file is a .dispatch.lock sibling of each board's
kanban.db, so unrelated boards tick in parallel.
- POSIX + Windows (fcntl / msvcrt LK_NBLCK), no-op degrade where neither
exists — mirrors the existing _cross_process_init_lock pattern.
Verified with a real two-process orphan repro: while a separate process holds
the lock, dispatch_once skips; after release it runs.
Follow-up to the salvaged worktree-materialization fix. When a worktree
task has no explicit workspace_path, resolve the anchor from the board's
default_workdir (a git repo) and materialize <repo>/.worktrees/<id> per
task, instead of silently rooting under the dispatcher's CWD (whatever
directory launched the gateway, e.g. the Hermes checkout). If no
default_workdir is configured, raise with a clear message rather than
guessing from CWD.
Adds AUTHOR_MAP entry for the salvaged commit.
The dispatcher treated workspace_kind=worktree as metadata only and never
ran 'git worktree add', so every worktree task ran in the main repo checkout
instead of an isolated worktree — concurrent tasks silently shared one tree
and contaminated each other.
This materializes a real linked worktree at <repo>/.worktrees/<task_id> on
branch wt/<task_id> when resolve_workspace() handles a worktree task, treats a
repo-root workspace_path as shorthand for that location, persists the derived
workspace/branch back onto the task row, and — on rerun/redispatch — detects an
already-materialized linked worktree (via git-common-dir) and reuses it instead
of nesting a second .worktrees/<id> inside it.
_terminate_reclaimed_worker early-returned on ProcessLookupError with
terminated=False. The new reclaim-defer guard reads that as 'worker
survived the kill' and defers the reclaim forever, so a stale task whose
worker is already dead never lands in result.stale. ProcessLookupError
means the process is gone — that IS a successful termination. Split it
from the generic OSError branch and set terminated=True.
release_stale_claims and detect_stale_running call _terminate_reclaimed_worker
and then release the task claim unconditionally, even when the termination did
not actually kill the worker. _terminate_reclaimed_worker already reports this
via its "terminated" flag, but the callers ignore it.
When a worker is parked in uninterruptible (D) state — for example throttled by
a cgroup memory.high limit — a pending SIGTERM/SIGKILL cannot be delivered until
the throttle lifts, so the kill is a no-op. The dispatcher then frees the claim
and spawns a fresh worker beside the still-alive one. Repeated every dispatch
tick this accumulates duplicate workers without bound, deepening the memory
pressure that caused the throttle in the first place — a self-reinforcing
runaway.
Fix: gate both automatic reclaim paths on _worker_survived_termination(). When
we attempted to kill our own host-local worker and it is still alive, defer the
reclaim (_defer_reclaim_for_live_worker extends the claim a short grace and
emits a reclaim_deferred event) instead of releasing. This guarantees at most
one live worker per task and is self-correcting: not spawning a duplicate is
what relieves the pressure so the pending signal lands and the worker dies, and
the next tick reclaims cleanly. Non-host-local claims and the operator-driven
reclaim_task() path keep their existing force-release behaviour.
Related: #41448 (concurrent dispatchers amplify this by doubling reclaim
frequency); #42858 (kill the worker rather than orphan it on archive).
Tests: defer-when-worker-survives, reclaim-when-killed,
release-when-not-host-local, and the detect_stale_running path.
Follow-up on the deferred-cleanup salvage (#33774): _cleanup_workspace
returned early for a non-scratch ('dir'/'worktree') task and never ran the
parent sweep, so a scratch parent waiting on a 'dir' child would leak its
deferred workspace forever. Run the parent sweep before the early return.
Adds regression tests: deferred-while-child-active, swept-after-last-child,
and dir-child-unblocks-scratch-parent.
When a Kanban task with workspace_kind=scratch completes, the
_cleanup_workspace() function immediately deletes the workspace
directory. If the task has children linked via task_links, those
children find the workspace deleted when they start.
This fix adds two checks:
1. Before deleting, check if any children are still active
(todo/ready/running). If so, defer cleanup.
2. After a child completes, check if parent workspace can now
be cleaned up (all children terminal).
FixesNousResearch/hermes-agent#33774
A kanban worker that exhausted its retries purely on a provider rate
limit / quota wall (e.g. opencode-go's 5-hour window) exited with code 1.
The dispatcher counted that as a crash, and with DEFAULT_FAILURE_LIMIT=2
two quota-wall hits permanently blocked the card. Fanning out many
workers against one shared quota made this routine.
Now a rate-limited worker exits with EX_TEMPFAIL (75); the dispatcher
classifies that as a 'rate_limited' exit, releases the task back to
'ready' WITHOUT incrementing consecutive_failures (the breaker can't trip
on a transient throttle), and the respawn guard defers the next attempt
on a cooldown (default 5min, HERMES_KANBAN_RATE_LIMIT_COOLDOWN_SECONDS)
until the quota window clears. Genuine crashes still count and trip the
breaker as before. The 120s Retry-After cap is unchanged — no worker
parks for hours holding a slot.
- conversation_loop.py: surface failure_reason in the exhaustion return
- cli.py: kanban worker picks exit 75 on rate_limit/billing failure
- kanban_db.py: rate_limited exit kind, no-count requeue, cooldown guard
decompose_triage_task hardcoded every fan-out child to workspace_kind
'scratch', ignoring the root task's workspace. A code-gen task created
with a dir:/worktree: workspace would fan out into throwaway scratch tmp
dirs (GC'd on archive), so generated code never landed in the project.
Children now inherit the root's workspace_kind + workspace_path. A child
dict may still override with its own workspace_kind/workspace_path; the
path only carries over when kinds match. Scratch roots are unchanged.
* feat(kanban): goal_mode cards run workers in a /goal loop
A goal_mode card wraps its dispatched worker in the Ralph-style goal
loop behind /goal: after each turn an auxiliary judge checks the
worker's response against the card title+body, and if not done the
worker keeps going in the SAME session until the judge agrees, the
worker terminates the task itself, or the turn budget runs out (which
blocks the card for human review — never a silent exit).
- kanban_db: goal_mode + goal_max_turns columns (additive migration),
Task fields, create_task params, INSERT wiring, created-event payload.
- kanban_tools: goal_mode/goal_max_turns on the kanban_create tool so
orchestrators can opt cards in when fanning out.
- kanban CLI: --goal / --goal-max-turns on 'kanban create'.
- dashboard API: goal_mode/goal_max_turns on the create endpoint
(auto-surfaced back via asdict).
- _default_spawn: sets HERMES_KANBAN_GOAL_MODE / _GOAL_MAX_TURNS only
when the card opts in.
- goals.run_kanban_goal_loop: standalone, callback-injected loop engine
(no SessionDB persistence; ephemeral worker). cli.py quiet path calls
it after the worker's first turn when the env vars are set.
- Docs: orchestrator skill + kanban feature page.
Tests: DB roundtrip + legacy migration, spawn env gating, and the loop's
continuation/completion/budget-block/finalize-nudge branches. E2E run
against a real kanban DB confirms a budget-exhausted goal worker lands
in a sticky blocked state.
* feat(kanban/dashboard): goal-mode toggle in the create form
Wires the goal_mode card setting into the dashboard UI (the plugin's
hand-written IIFE bundle, no build step):
- InlineCreate: 'goal mode' checkbox after the skills field; checking it
reveals an optional 'max turns' number input. Both reset on submit and
only post goal_mode/goal_max_turns when enabled.
- TaskDrawer: a 'Goal mode: on (max N turns)' MetaRow so a card's
goal-mode setting is visible after creation (auto-fed by asdict via the
existing _task_dict).
Live-tested through the running dashboard with a browser: created a
goal-mode card with max-turns=8, confirmed it persisted to the kanban DB
(goal_mode=1, goal_max_turns=8) and rendered back in the drawer as
'on (max 8 turns)'. No JS console errors.
Tasks can now carry file attachments (PDFs, images, source docs) that
workers read directly — closes the gap where source material had to be
pasted as a path into the task body.
- kanban_db: task_attachments table (additive), Attachment dataclass,
add/list/get/delete accessors, attachments_root/task_attachments_dir
path helpers (per-board, HERMES_KANBAN_ATTACHMENTS_ROOT override)
- build_worker_context: surfaces each attachment's absolute path so the
worker (full file/terminal tool access) reads it via read_file/pdftotext
- dashboard API: POST/GET/DELETE attachment routes (multipart upload,
25MB cap, traversal-safe filenames, root-containment check on download)
- dashboard UI: Attachments section in the task drawer — upload button,
list with download, per-row remove
- docs + tests (13 cases: DB accessors, REST round-trip, traversal
rejection, collision suffixing, worker-context surfacing)
Closes#35338
Follow-up to the budget-exhaustion recovery fix. recompute_ready's
new circuit-breaker guard resolved its effective limit from per-task
max_retries -> DEFAULT_FAILURE_LIMIT, skipping the dispatcher's
configured kanban.failure_limit. _record_task_failure resolves
max_retries -> failure_limit(config) -> DEFAULT, so the two disagreed
whenever an operator set kanban.failure_limit != 2:
- config > 2: a task could get stuck at DEFAULT(2) before reaching its
allowed retry count.
- config < 2: a task the breaker already blocked could be auto-recovered
back to ready, defeating the stricter limit.
Thread the dispatcher's failure_limit through dispatch_once into
recompute_ready so the guard and the breaker share one resolution order.
Updated test_circuit_breaker_block_still_auto_promotes (it asserted a
failures=5 block auto-recovers and resets the counter — that's the
pre-#35072 behavior the loop fix removes); it now exercises a below-limit
transient block, with the at-limit case covered in test_kanban_db.py.
Added two tests for the config-tier and per-task override resolution.
recompute_ready() previously reset consecutive_failures to 0 when
auto-recovering a blocked task. This defeated the circuit-breaker:
a task that repeatedly exhausted its iteration budget would cycle
forever (block → auto-recover with counter=0 → respawn → budget
exhausted → block → …) with no signal to the operator.
Fix: don't auto-recover tasks whose consecutive_failures has reached
the effective failure limit (per-task max_retries or
DEFAULT_FAILURE_LIMIT). The counter is also preserved across
recovery so the breaker can accumulate across cycles.
Fixes#35072
Legacy kanban boards (pre-AUTOINCREMENT schema) crashed the gateway
notifier on every tick — int(None) on a NULL id in unseen_events_for_sub
— silently losing all kanban notifications. CREATE TABLE IF NOT EXISTS
skips existing tables regardless of schema and _add_column_if_missing
only adds columns, so neither could fix a drifted primary-key type.
_rebuild_drifted_tables() detects the legacy shape via PRAGMA table_info
and rebuilds task_events/task_comments/task_runs (TEXT PK -> INTEGER
AUTOINCREMENT) and kanban_notify_subs.last_event_id (TEXT/NULL -> INTEGER
NOT NULL DEFAULT 0), preserving data. The whole pass is one transaction
so an interruption can't leave a table half-renamed, and recreates every
index DROP TABLE would otherwise take down (including idx_events_run).
Co-authored-by: liuhao1024 <liuhao1024@users.noreply.github.com>
Vulture + per-symbol verification (whole-repo grep incl. tests, string
literals, getattr, decorator/registry/argparse dispatch) confirmed each of
these has zero callers anywhere — not reachable via any dynamic-dispatch path,
not referenced by tests, not re-exported.
Removed:
- acp_adapter/tools.py: _build_patch_mode_content
- agent/anthropic_adapter.py: read_claude_managed_key (diagnostics-only, never called)
- agent/bedrock_adapter.py: get_bedrock_model_ids
- agent/browser_registry.py: get_active_browser_provider
- agent/chat_completion_helpers.py: _take_request_client (x2 nested closures, never invoked)
- gateway/platforms/weixin.py: _rewrite_headers_for_weixin, _rewrite_table_block_for_weixin
- hermes_cli/banner.py: _skin_branding
- hermes_cli/debug.py: _delete_hint
- hermes_cli/gateway.py: _setup_email, _setup_sms, _setup_yuanbao
(platform keys absent from the _builtin_setup_fn dispatch dict; handled by
the _setup_standard_platform fallback)
- hermes_cli/kanban_db.py: set_max_runtime, active_run
- hermes_cli/kanban_diagnostics.py: severity_of_highest, _latest_clean_event_ts
- hermes_cli/main.py: _build_provider_choices, cmd_portal
(portal subcommand is wired via portal_cli.add_parser, not this wrapper)
- hermes_cli/model_switch.py: CustomAutoResult (orphaned by the switch_model() extraction)
- hermes_cli/models.py: format_model_pricing_table, fetch_nous_account_tier
- hermes_cli/portal_cli.py: _nous_portal_base_url
- hermes_cli/proxy/server.py: handle_models_fallback (defined but never registered on the router)
- tools/computer_use/cua_backend.py: _parse_element, _is_arm_mac
- tools/file_operations.py: _get_safe_write_root (prod uses the imported
agent.file_safety.get_safe_write_root directly)
- tools/skills_tool.py: _load_category_description
Also dropped two imports left unused by the removals:
- tools/file_operations.py: get_safe_write_root alias
- tools/computer_use/cua_backend.py: import platform
Pure deletion: -551 LOC. No behavior change. Test files covering the edited
modules pass (640/640); the broader suite's pre-existing/env-dependent
failures reproduce unchanged on origin/main.
Reporter diagnosed three independent gaps that together allowed infinite
'unblock → re-stuck' loops with no surfacing or escalation:
GAP 1: `_rule_stuck_in_blocked` resets timer on any `commented`/`unblocked`
event, so a task that cycles every few minutes is invisible to it
regardless of how many times it cycles.
Fix: new `_rule_block_unblock_cycling` rule (`hermes_cli/kanban_diagnostics.py`)
that counts block→unblock cycles in a sliding window. Default threshold
3 cycles within 24h, configurable via `block_cycle_threshold` /
`block_cycle_window_seconds`. Walks events in arrival order (event id)
since multiple events can share the same `created_at` second. Fires as a
warning with a CLI hint to inspect the block reasons.
GAP 2: Iteration-budget-exhausted runs in kanban workers map to
`kanban_block` (status=blocked, but a clean exit from the kernel's
perspective). `_rule_repeated_failures` reads `consecutive_failures`,
which `_record_task_failure` increments only for crashed/timed_out/
spawn_failed — `blocked` outcome bypasses the failure counter, so the
`kanban.failure_limit` circuit breaker never trips on budget-exhaustion
loops.
Fix: `agent/conversation_loop.py` budget-exhaustion path now calls
`_record_task_failure(outcome="timed_out")` instead of `kanban_block`.
Budget exhaustion is genuinely a timeout-shaped failure (the task ran out
of allowed iterations), so this is more honest semantics; it also routes
through the unified failure counter, so repeated budget exhaustions trip
the circuit breaker and the task auto-blocks with `gave_up` after
`failure_limit` retries.
GAP 3: `release_stale_claims` uses `_pid_alive(worker_pid)` only and
ignores `last_heartbeat_at`. Reporter observed a 91-min run that held
its claim with frozen heartbeat because the worker entered a logic loop
with no tool calls — `_pid_alive` kept returning True so the claim was
extended every 15 minutes indefinitely.
Fix: heartbeat-stale backstop. If `last_heartbeat_at` is set AND older
than `DEFAULT_CLAIM_HEARTBEAT_MAX_STALE_SECONDS` (default 1h), reclaim
even if the PID is alive. NULL `last_heartbeat_at` preserves backward
compatibility (no heartbeat yet = extend, as before). The reclaim event
payload now includes a `heartbeat_stale` boolean so operators see why a
live-PID worker was reclaimed.
This works cleanly in concert with PR #34418 (#31752 runtime → heartbeat
bridge): once `_touch_activity` keeps `last_heartbeat_at` fresh as a
side effect of normal API traffic, the backstop only fires for genuinely
wedged workers (no chunks, no tool results, no progress at all).
Co-authored-by: baofuen <45189813+baofuen@users.noreply.github.com>
Remove unused imports (F401) and duplicate/shadowed import
redefinitions (F811) across the codebase using ruff's safe
autofixes. No behavioral changes -- imports only.
- ~1400 safe autofixes applied across 644 files (net -1072 lines)
- __init__.py re-exports preserved (excluded from F401 removal so
public re-export surfaces stay intact)
- Re-exports that are imported or monkeypatched by tests but look
unused in their defining module are kept with explicit # noqa:
F401 (gateway/run.py load_dotenv; run_agent re-exports from
agent.message_sanitization, agent.context_compressor,
agent.retry_utils, agent.prompt_builder, agent.process_bootstrap,
agent.codex_responses_adapter)
- Unsafe F841 (unused-variable) fixes deliberately skipped -- those
can change behavior when the RHS has side effects
- ruff lints remain disabled in pyproject.toml (only PLW1514 is
selected); this is a one-time cleanup, not a config change
Verification:
- python -m compileall: clean
- pytest --collect-only: all 27161 tests collect (zero import errors)
- core entry points import clean (run_agent, model_tools, cli,
toolsets, hermes_state, batch_runner, gateway)
- static scan: every name any test imports directly from an edited
module still resolves
Two related dispatcher behaviors that have been missing for a while.
## kanban.default_assignee (#27145)
Reporter (@agarzon): dashboard creates a task without an assignee, task
parks in 'ready' forever even though the operator's intent ('default')
is perfectly clear. The dispatcher already had a 'skipped_unassigned'
bucket but no fallback routing — users had to manually type 'default'
in the assignee field every time.
Behavior: when 'kanban.default_assignee' is set in config.yaml, the
dispatcher applies that assignee to any unassigned ready task before
deciding whether to spawn. The row is mutated (assignee column + an
'assigned' event with source='kanban.default_assignee' for the audit
trail). Empty/whitespace config value = no fallback, preserving the
existing skipped_unassigned behavior.
Dry-run mode reports what WOULD happen via the new
'auto_assigned_default' bucket on DispatchResult, but does NOT mutate
the DB — operators using 'hermes kanban dispatch --dry-run' see the
routing decision before committing.
## kanban.max_in_progress_per_profile (#21582)
Reporter (@edwardchenchen, @simlu, 4 reactions): fan-out workloads
saturate one profile's local model / API quota / browser pool while
other profiles sit idle. The existing global 'max_in_progress' caps
total workers but doesn't balance across profiles.
Behavior: when 'kanban.max_in_progress_per_profile' is set to a
positive int, the dispatcher tracks per-assignee running counts (one
query at tick start) and refuses to spawn for any assignee already at
the cap. Tasks blocked this way go to a new
'skipped_per_profile_capped' bucket on DispatchResult as
(task_id, assignee, current_running_count) tuples — NOT an
operator-actionable failure, just 'try again next tick when the
profile has capacity'.
Pre-existing 'running' tasks count against the cap (verified via
regression test). The cap respects dry_run mode by incrementing
its in-memory counter on each would-be spawn so dry_run reports
the same balanced subset that a real tick would.
Invalid cap values (0, negative, non-int, None) are treated as 'no
cap', preserving the existing behavior. Backward-compatible for
installs that don't set the config.
## Surfaces
- 'hermes kanban dispatch' CLI now prints 'Auto-assigned to
kanban.default_assignee=X: ...' and 'Deferred (X at per-profile cap,
N running): ...' lines, plus matching JSON keys in --json output.
- Gateway dispatcher logs the configured values at startup
('default_assignee=X', 'max_in_progress_per_profile=N').
- 'kanban.max_in_progress_per_profile' added to DEFAULT_CONFIG with
inline docs.
## Validation
- tests/hermes_cli/test_kanban_default_assignee.py (6 cases): no-cap
baseline, auto-assign + DB mutation, dry-run reports without
mutating, whitespace treated as None, explicit assignees untouched,
DispatchResult field schema.
- tests/hermes_cli/test_kanban_per_profile_cap.py (9 cases including
4 parametrized): no-cap baseline, balanced 2-profile fan-out,
pre-existing running counts against cap, invalid cap values
(0/-1/'abc'/None), capped tasks dispatched on next tick after
running task completes, DispatchResult field schema.
- Broader kanban suite: 464/464 pass (was 449 baseline; +15 new
regression tests across both features).
## Credit
#27145 — Jimmy Johansson reported the dispatcher skipped-unassigned
gap; @agarzon scoped the simpler 'honor kanban.default_assignee' fix
that matches the existing config knob.
#21582 — @edwardchenchen filed the per-profile cap ask after hitting
model 429s on fan-out research projects; @simlu confirmed the same
pain on local-model setups.
