When a kanban worker subprocess exits rc=0 but its task is still in
status='running', the agent almost certainly answered the task
conversationally without calling kanban_complete or kanban_block. The
dispatcher used to classify this as a generic crash and respawn, which
loops forever on small local models (gemma4-e2b q4 etc.) that keep
returning clean but unproductive output.
Dispatcher changes:
- The waitpid reap loop at the top of dispatch_once now records each
reaped child's raw exit status in a bounded module registry
(_recent_worker_exits, TTL 600s, size cap 4096).
- _classify_worker_exit distinguishes clean_exit / nonzero_exit /
signaled / unknown using os.WIFEXITED / WIFSIGNALED.
- detect_crashed_workers consults the classification when a worker
is found dead. clean_exit → protocol_violation event + immediate
circuit-breaker trip (failure_limit=1). Everything else keeps the
existing crashed-event + counter behavior.
- DispatchResult.auto_blocked now includes protocol-violation trips.
Gateway fix (Bug A in #20894):
- gateway.run._notify_active_sessions_of_shutdown snapshots
self.adapters with list(...) before iterating. adapter.send() can
hit a fatal-error path that pops the adapter from the dict, which
was raising 'RuntimeError: dictionary changed size during iteration'
during shutdown.
Regression tests:
- test_detect_crashed_workers_protocol_violation_auto_blocks verifies
rc=0 + still-running → status=blocked on first occurrence with
protocol_violation + gave_up events and NO crashed event.
- test_detect_crashed_workers_nonzero_exit_uses_default_limit verifies
non-zero exits keep the existing 2-strike behavior.
Closes#20894.
README.md:163 said atroposlib and tinker were pulled in by .[all,dev], but
.[all] does not include .[rl] — those dependencies live in pyproject.toml's
[rl] extra (lines 95-101). With the original wording, a contributor running
uv pip install -e ".[all,dev]" would not have atroposlib or tinker
installed.
Rather than swap one extra for another (which paths users to either of two
parallel install conventions — pip [rl] extra vs tinker-atropos submodule —
without saying which the project considers canonical), this PR drops the
specific install command from the README and links to CONTRIBUTING.md,
which already documents the actual development setup.
custom_providers entries (section 4 of list_authenticated_providers) only
read the static models: dict from config.yaml, ignoring the live /v1/models
endpoint. This means gateways like Bifrost that expose hundreds of models
only show the handful explicitly listed in config.
Add live discovery via fetch_api_models() for custom_providers entries
that have api_key + base_url, matching the existing behavior for user
providers: entries (section 3). When the endpoint is reachable and
returns models, the live list replaces the static subset.
Fixes: /model picker showing only 9 models from a Bifrost gateway that
actually exposes 581.
Skills that produce large/lossless images (e.g. info-graph, where a
rendered JPG is 1-2 MB) currently lose quality in Telegram delivery
because `_IMAGE_EXTS` membership routes the file through
`send_multiple_images` → `sendMediaGroup`, which Telegram's server
re-encodes to JPEG @ 1280px max edge. The original bytes only survive
when the file goes through `send_document`, which the dispatch tables
in three places (`_process_message_background`, `_deliver_media_from_response`,
and the `send_message` tool's telegram path) only reach for files
whose extension is NOT in `_IMAGE_EXTS`.
This commit adds an `[[as_document]]` directive that mirrors the
existing `[[audio_as_voice]]` shape: a skill emits the directive once
in its response, and every image-extension MEDIA: file in that response
is delivered via `send_document` instead of `send_multiple_images` /
`sendPhoto`. The directive is detected at the dispatch sites (which see
the raw response) and the directive string is stripped from the
user-visible cleaned text in `extract_media` so it never leaks.
Granularity is intentionally all-or-nothing per response, matching
[[audio_as_voice]]'s scope. Skills that need fine control can split into
two responses.
Verified the targeted use case: info-graph emits
信息图已生成（...）
[[as_document]]
MEDIA:/tmp/info-graph-x/infographic.jpg
→ Telegram receives `infographic.jpg` via sendDocument, original 1MB
JPEG bytes preserved, no recompression. Forwarding and download
filenames stay clean (`infographic.jpg`).
Tests: +3 cases in TestExtractMedia covering directive strip, isolation
from voice flag, and coexistence with [[audio_as_voice]]. All
113 pre-existing media/extract/send tests pass.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The --command flag of `hermes mcp add` shared its argparse dest with the
top-level subparser (`dest="command"` in `hermes_cli/_parser.py`). When
the flag was omitted, argparse still wrote `args.command = None`,
clobbering the top-level value of `"mcp"`. The dispatcher then saw
`args.command is None` and fell through to interactive chat, so
`hermes mcp add ...` silently launched chat instead of registering the
server. `cmd_mcp_add` was never reached.
Use `dest="mcp_command"` on the flag and read it from `cmd_mcp_add`.
The user-facing CLI flag `--command` is unchanged; only the in-memory
namespace attribute moves. Also updates the `_make_args` helper in
`tests/hermes_cli/test_mcp_config.py` to populate the new dest, and
adds `tests/hermes_cli/test_mcp_add_command_dest.py` with a parser-
level regression test.
Closes#19785.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Follow-up on top of Zyproth's session-source cache: swap the unbounded
dict for an OrderedDict with a 512-entry LRU cap so long-running
gateways can't accumulate stale entries for dead sessions forever.
- self._session_sources is now an OrderedDict
- _cache_session_source() move_to_end + popitem(last=False) above cap
- _get_cached_session_source() move_to_end on hit (LRU read bump)
- restart_test_helpers.py wires OrderedDict + _session_sources_max
The delegate_task tool schema descriptions referenced 'claude --acp --stdio'
as an example, but Claude Code CLI does not support --acp or --stdio flags.
The ACP subprocess transport (agent/copilot_acp_client.py) is specifically
built for GitHub Copilot CLI ('copilot --acp --stdio').
Changes:
- Per-task acp_command example: 'claude' → 'copilot'
- Top-level acp_command description: remove 'Claude Code' reference,
clarify requirement for ACP-compatible CLI (currently Copilot only)
- acp_args description: remove misleading claude-opus-4-6 example
Fixes#19055
`_save_auth_store`, `_save_qwen_cli_tokens`, and `_write_shared_nous_state`
all created the temp file via `Path.open('w')` / `Path.write_text` and only
tightened permissions to 0o600 afterward. Between create and chmod the file
existed at the process umask (commonly 0o644 = world-readable on multi-user
hosts), briefly exposing OAuth access/refresh tokens for Nous, Codex,
Copilot, Claude, Qwen, Gemini, and every other native OAuth provider that
flows through auth.json.
Switch all three to `os.open(O_WRONLY|O_CREAT|O_EXCL, 0o600)` + `os.fdopen`
+ `fsync` so the file is atomic at 0o600 on creation. Tighten each parent
directory (`~/.hermes/`, Qwen auth dir, Nous shared auth dir) to 0o700 so
siblings can't traverse to the creds. `_save_auth_store` also gains a
per-process random temp suffix to match `agent/google_oauth.py` (#19673)
and `tools/mcp_oauth.py` (#21148).
Adds `tests/hermes_cli/test_auth_toctou_file_modes.py` asserting final
file mode 0o600 and parent dir mode 0o700 across all three writers, plus
an explicit `os.open(flags, mode)` check on the main auth.json writer
that would fail if anyone reintroduces the `Path.open('w')` pattern.
POSIX-only (mode bits skipped on Windows).
Flip the default for HERMES_REDACT_SECRETS from off to on so the redactor
already wired into send_message_tool, logs, and tool output actually runs
on a fresh install.
- agent/redact.py: env-var default "" → "true"
- hermes_cli/config.py: DEFAULT_CONFIG security.redact_secrets True;
two config-template comments rewritten
- gateway/run.py + cli.py: startup log / banner warning when the user
has explicitly opted out, so the downgrade is visible in agent.log
and at CLI banner time
- docs/reference/environment-variables.md: description reconciled
- tests: flipped the default-pin, restructured the force=True
regression test to explicit-false instead of unset
Users who need raw credential values (redactor development) can still
opt out via security.redact_secrets: false in config.yaml or
HERMES_REDACT_SECRETS=false in .env.
Closes#17691.
Addresses #20785 (short-term output-pipeline recommendation).
aiohttp ClientTimeout uses BaseTimerContext which calls
loop.call_later() internally. When invoked via
asyncio.run_coroutine_threadsafe() from cron jobs, this
triggers "Timeout context manager should be used inside a task"
errors, causing message delivery failures.
Replace all direct ClientTimeout usage with asyncio.wait_for():
- _upload_ciphertext: CDN upload (120s timeout)
- _download_bytes: CDN download (configurable timeout)
- _download_remote_media: remote media fetch (30s timeout)
Also set total=None on _send_session to disable aiohttp built-in
timeout, and change trust_env=True to False to bypass proxy for
WeChat CDN connections.
Widen PR #20314's fix to the other timeout-polling sites in the codebase
that share the same wall-clock-jump bug class. All of these measure elapsed
timeout duration, not civil time, so they belong on time.monotonic().
- hermes_cli/auth.py: auth-store file-lock timeout, Spotify OAuth callback
wait, Nous portal device-auth token poll.
- hermes_cli/copilot_auth.py: Copilot OAuth device-flow token poll.
- hermes_cli/gateway.py: gateway systemd restart wait.
- hermes_cli/web_server.py: dashboard Codex device-auth user_code wait,
dashboard Nous device-auth token poll. (sess["expires_at"] stays on
time.time() — it's a persisted absolute timestamp, not a local
deadline-polling variable.)
- agent/copilot_acp_client.py: Copilot ACP JSON-RPC request timeout.
Extract the shared flock/msvcrt boilerplate from _auth_store_lock and
_nous_shared_store_lock into a single _file_lock(lock_path, holder,
timeout, message) helper. Each caller keeps its own threading.local
holder so reentrancy state stays per-lock.
Also document the lock-ordering invariant on both wrappers:
_auth_store_lock is OUTER, _nous_shared_store_lock is INNER for all
runtime refresh paths. The one exception is _try_import_shared_nous_state,
which holds the shared lock alone across the full HTTP refresh+mint
cycle to prevent concurrent sibling imports from racing on the single-
use shared refresh token; that helper must not be called with the auth
lock already held.
Follow-up on top of @kyan12's PR #20888 — same feature, cleaner shape,
wider coverage.
Changes:
- Drop the synthetic '[System note: ...]' in the internal MessageEvent.
The existing _is_resume_pending branch in _handle_message_with_agent
(run.py ~L13738) already injects a reason-aware recovery system note
on the next turn. With kyan's text in place the model saw two stacked
system notes. Now the event text is empty and the existing injection
path owns the wording.
- Drop SessionStore.list_resume_pending() as a new public method. The
filter is 8 lines inline in _schedule_resume_pending_sessions() —
one caller, no other pluggability need.
- Add 'restart_interrupted' to the auto-resume reason set. That's the
reason SessionStore.suspend_recently_active() stamps on sessions
recovered from a crash/OOM/SIGKILL (no .clean_shutdown marker).
Previously those sessions had to wait for a real user message to
auto-resume; now they continue automatically at startup like
drain-timeout interruptions do.
- Reasons live in a _AUTO_RESUME_REASONS frozenset at class scope so
future reasons (e.g. 'manual_resume_request') can be opted in with
one line.
Test coverage added:
- drain-timeout + crash-recovery both scheduled
- stale entries skipped (outside freshness window)
- suspended entries skipped (suspended > resume_pending)
- originless entries skipped (no routing target)
- disallowed reasons skipped (graceful forward-compat)
E2E verified end-to-end with a real on-disk SessionStore: 2 eligible
sessions scheduled, 2 ineligible skipped, empty-text internal events
delivered to the adapter.
Co-authored-by: Kevin Yan <kevyan1998@gmail.com>
The gateway-embedded dispatcher (default since `kanban.dispatch_in_gateway
= true`) is the parent of every spawned kanban worker. `_default_spawn`
calls `subprocess.Popen(..., start_new_session=True)` and returns the
pid — `start_new_session` detaches the controlling tty but does not
reparent to init, so the gateway keeps each worker as a child until it
`wait()`s for them.
Nothing in the dispatch loop ever calls `waitpid`. Result: every
completed worker becomes a `<defunct>` zombie that lingers until the
gateway exits. We hit ~430 zombies on a single hermes-agent container
after ~40 days of steady kanban traffic, approaching process-table
exhaustion on the host.
Fix: add a non-blocking reap loop at the top of `dispatch_once`, so
every dispatcher tick (default 60s) drains zombies that accumulated
since the last tick. WNOHANG keeps the call non-blocking; ChildProcessError
means no children to reap.
Why here, not a SIGCHLD handler:
- signal.signal requires the main thread; gateway threading model makes
that placement non-trivial.
- Bounded staleness: at default interval=60s the maximum live zombie
count is one tick's worth of worker completions.
- No interaction with detect_crashed_workers: that function only inspects
rows where status='running', and rows reach 'done' (and stop being
inspected) before their workers exit.
The kanban_heartbeat tool called heartbeat_worker but never
heartbeat_claim, so a worker that loops the tool while a single tool
call blocks the agent for >DEFAULT_CLAIM_TTL_SECONDS still got
reclaimed by release_stale_claims. The function name and
heartbeat_claim's own docstring imply otherwise:
"Workers that know they'll exceed 15 minutes should call this
every few minutes to keep ownership."
But there was no caller in the worker tool path. Workers couldn't
invoke heartbeat_claim themselves either — it isn't exposed as a tool.
Fix: _handle_heartbeat now calls heartbeat_claim first, reading
HERMES_KANBAN_CLAIM_LOCK from the worker env (the dispatcher pins
this in _default_spawn). Falls back to _claimer_id() for locally-
driven workers that didn't go through dispatcher spawn.
Test: tests/tools/test_kanban_tools.py::test_heartbeat_extends_claim_expires
rewinds claim_expires into the past, calls the tool, and asserts the
new value is at least now + DEFAULT_CLAIM_TTL_SECONDS // 2. Verified to
fail against the unfixed code (claim_expires stays at the rewound
value).
Closes the root cause underlying the symptom in #21141 (15-min
respawns of long-running workers). #21141 separately addresses
post-reclaim cleanup; this fixes the upstream "shouldn't have been
reclaimed in the first place" half.
When display.cleanup_progress (or display.platforms.<plat>.cleanup_progress)
is true, the gateway deletes tool-progress bubbles, long-running '⏳ Still
working...' notices, and status-callback messages after the final response
is delivered successfully. Currently effective on adapters that implement
delete_message (Telegram); silently no-ops elsewhere. Off by default.
Failed runs skip cleanup so bubbles stay as breadcrumbs.
Minimal plumbing: base.py's existing post_delivery_callback slot now chains
new registrations onto any existing callback (with per-callback exception
isolation) rather than clobbering. Stale-generation registrations are
rejected so they can't step on a fresher run's callbacks. This lets the
cleanup callback coexist with the background-review release hook already
registered on the same slot.
Co-authored-by: mrcharlesiv <Mrcharlesiv@gmail.com>
When terminal.backend is docker, inbound documents uploaded via messaging
platforms (Telegram, Slack, Discord, Feishu, Email, etc.) are cached at a host
path under ~/.hermes/cache/documents, but the container sandbox only sees them
at the auto-mounted /root/.hermes/cache/documents path.
This PR adds to_agent_visible_cache_path() in tools/credential_files.py (the
natural sibling to get_cache_directory_mounts()) and calls it at the
document-context-injection site in gateway/run.py so the agent always receives
a path it can open directly, matching the mount layout already established
by get_cache_directory_mounts() (#4846).
Scope: only Docker backend for now; other backends use different mount
semantics and are left unchanged until verified.
Fixes#18787
The rescan-on-platform-change fix landed in #18739 ships one regression
test that exercises the HERMES_PLATFORM env-var path. Three other code
paths in get_skill_commands / _resolve_skill_commands_platform have no
direct coverage; this commit adds a regression test for each.
- Gateway session context (HERMES_SESSION_PLATFORM via ContextVar): the
resolver consults get_session_env after HERMES_PLATFORM, and the
gateway sets that variable through set_session_vars (a ContextVar),
not os.environ. The test uses set_session_vars / clear_session_vars
to drive the actual gateway signal, and the disabled-skill stub reads
the same value via get_session_env. A regression that swapped
get_session_env for plain os.getenv would still pass an env-var-based
test but break concurrent gateway sessions, which is the bug the
ContextVar plumbing exists to prevent.
- Returning to no-platform-scope (CLI / cron / RL rollouts after a
gateway session): the cached telegram view must be dropped and the
unfiltered scan repopulated when HERMES_PLATFORM is unset again.
- Same-platform cache hit: consecutive calls under the same platform
scope must NOT rescan. The rescan trigger is change in scope, not
"always re-resolve" — a gateway serving many consecutive telegram
requests should pay the scan cost once, not per request.
The third test wraps scan_skill_commands with a spy after the cache is
primed, so the assertion is on call_count == 0 across three subsequent
get_skill_commands() calls.
All 39 tests in tests/agent/test_skill_commands.py pass under
scripts/run_tests.sh.
Adds 7 optional skills under optional-skills/finance/ adapted from
anthropics/financial-services (Apache-2.0):
excel-author — openpyxl conventions: blue/black/green cells,
formulas over hardcodes, named ranges, balance
checks, sensitivity tables. Ships recalc.py.
pptx-author — python-pptx for model-backed decks (pitch,
IC memo, earnings note) that bind every number
to a source workbook cell.
dcf-model — institutional DCF (49KB skill): projections,
WACC, terminal value, Bear/Base/Bull scenarios,
5x5 sensitivity tables. Ships validate_dcf.py.
comps-analysis — comparable company analysis: operating metrics,
multiples, statistical benchmarking.
lbo-model — leveraged buyout: S&U, debt schedule, cash
sweep, exit multiple, IRR/MOIC sensitivity.
3-statement-model — fully-integrated IS/BS/CF with balance-check
plugs. Ships references/ for formatting,
formulas, SEC filings.
merger-model — accretion/dilution analysis for M&A.
All seven are optional (not active by default). Users install via
'hermes skills install official/finance/<skill>'.
Hermesification:
- Stripped every Office JS / Office Add-in / mcp__office__*
branch — skills assume headless openpyxl only.
- Replaced Cowork MCP data-source instructions with 'MCP first (via
native-mcp), fall back to web_search/web_extract against SEC EDGAR
and user-provided data'.
- Swapped Claude tool references (Bash, Read, Write, Edit, mcp__*)
for Hermes-native equivalents and Python library calls.
- Canonical Hermes frontmatter (name/description/version/author/
license/metadata.hermes.{tags,related_skills}).
- Descriptions tightened to 187-238 chars, trigger-first.
- Attribution preserved: author field credits 'Anthropic (adapted by
Nous Research)', license: Apache-2.0, each SKILL.md links back to
the upstream source directory.
Verification:
- All 7 discovered by OptionalSkillSource with source_id='official'
- Bundle fetch includes support files (scripts, references, troubleshooting)
- related_skills cross-refs all resolve within the bundle
- No Claude product / Cowork / Office JS / /mnt/skills leakage
remains in body text (bounded mentions only in attribution blocks)
Source: https://github.com/anthropics/financial-services (Apache-2.0)
In native image mode (vision-capable models like gpt-4o, claude-sonnet-4),
build_native_content_parts() previously emitted only the user's caption
plus image_url parts. The local file path of each attached image never
appeared in the conversation text, so the model could see the pixels but
had no string handle for tools that take image_url: str (custom MCP
tools, vision_analyze on a re-look, attach-to-tracker workflows).
The text-mode path already injects an equivalent hint via
Runner._enrich_message_with_vision ("...vision_analyze using image_url:
<path>..."). This brings native mode to parity by appending one
"[Image attached at: <path>]" line per successfully attached image to
the user-text part of the multimodal turn. Skipped (unreadable) paths
are NOT advertised, so the model is never told a non-existent file is
attached.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
