Some exception classes (e.g. anyio.ClosedResourceError) are raised without
a message argument, so str(exc) returns an empty string. The existing error
format f'{type(exc).__name__}: {exc}' would produce messages like
'MCP call failed: ClosedResourceError: ' with nothing after the colon.
Add _exc_str() helper that falls back to repr(exc) when str(exc) is empty,
and apply it to all 6 MCP error formatting sites (5 tool/prompt/resource
handlers + 1 sampling handler).
Fixes#19417
Treat closed-resource, closed-transport, broken-pipe, and EOF MCP failures as stale session equivalents so the existing reconnect/retry-once path can recover. Add regression coverage for the stale-pipe marker variants.\n\nChecks:\n- python -m py_compile tools/mcp_tool.py tests/tools/test_mcp_tool_session_expired.py\n- python -m pytest tests/tools/test_mcp_tool_session_expired.py -q -o addopts=\n- selected secret scan over touched files
Track elapsed wall time in _run_on_mcp_loop, cancel the in-flight future when a timeout expires, and raise a descriptive TimeoutError that includes the elapsed and configured timeout. Add regression coverage for the new timeout diagnostics.
## Summary
- Forwards chat-completions `timeout` into the Codex Responses stream call.
- Adds total elapsed-time enforcement while the Responses stream is still yielding events.
- Closes the underlying client on timeout to unblock stalled streams, then raises `TimeoutError`.
- Adds focused tests for timeout forwarding and total timeout enforcement.
## Why
The Codex auxiliary adapter can be used by non-interactive auxiliary work such as context compression. If the stream keeps yielding progress-like events but never completes, SDK socket/read timeouts do not necessarily protect the full operation. This makes the CLI look stuck until the user force-interrupts the whole session.
This is a refreshed upstream-ready version of the earlier fork fix around `d3f08e9a0` / PR #3.
## Verification
- `python -m py_compile agent/auxiliary_client.py tests/agent/test_auxiliary_client.py`
- `python -m pytest -o addopts='' tests/agent/test_auxiliary_client.py::TestCodexAuxiliaryAdapterTimeout -q`
- `git diff --check`
Discord (and similar platforms) can serve a PNG image cached as
discord_xxx.webp because the CDN reports content_type=image/webp for
proxied stickers, custom emoji, and certain bot-uploaded images even
when the actual bytes are PNG. Hermes' agent.image_routing._guess_mime
trusted the file suffix and declared media_type=image/webp to
Anthropic, which strict-validates and returns:
HTTP 400 messages.N.content.M.image.source.base64:
The image was specified using the image/webp media type,
but the image appears to be a image/png image
The Discord image attachment never reaches the model; the whole turn
fails with no salvage path.
Fix: sniff magic bytes in _file_to_data_url before declaring MIME.
Suffix-based detection is kept as a fallback when bytes aren't
available. New helper _sniff_mime_from_bytes covers PNG, JPEG, GIF,
WEBP, BMP, and HEIC/HEIF.
Tests:
- Two existing tests asserted the old broken behaviour (PNG bytes in
a .jpg/.webp file should report jpeg/webp); rewritten with real
jpeg/webp magic bytes so they still cover suffix-aligned cases.
- New regression test test_mime_sniff_overrides_misleading_extension
reproduces the exact Discord scenario (PNG bytes, .webp suffix) and
asserts the data URL comes back as image/png.
All 28 tests in tests/agent/test_image_routing.py pass.
When the provider rejects a request (e.g. invalid model slug like
'--provider nous --model kimi-k2.6' where the valid slug is
'moonshotai/kimi-k2.6'), run_conversation() returns
{failed: True, error: <detail>, final_response: None}. The TUI gateway
and one-shot CLI mode both dropped the error on the floor and emitted
an empty turn, so the user saw a blank response with no indication
that anything went wrong.
Mirror the interactive CLI's existing pattern (cli.py:9832): when
final_response is empty AND (failed|partial) is set AND error is
populated, surface 'Error: <detail>' as the visible text. Leaves
the None-with-no-error path and the '(empty)' sentinel path
untouched — an empty successful turn still renders empty, and
existing sentinel handlers keep owning their lane.
Reported by @counterposition in PR #20873; taking a minimal fix
rather than the broader structured-failure refactor proposed there.
Per repo policy, ~/.hermes/.env is for secrets only. Guild IDs are
behavioral configuration, not secrets. Replacing the
DISCORD_DM_ROLE_AUTH_GUILD env var from the original fix with
discord.dm_role_auth_guild in config.yaml.
- New module-level _read_dm_role_auth_guild() helper reads
hermes_cli.config.read_raw_config()['discord']['dm_role_auth_guild'].
Fails closed on any parse error (safe default = DM role-auth off).
- DEFAULT_CONFIG['discord'] gains dm_role_auth_guild: '' with a comment
documenting the opt-in.
- Tests patch hermes_cli.config.read_raw_config directly (via the
_set_dm_role_auth_guild helper) instead of setenv/delenv. 12 tests
in test_discord_roles_dm_scope pass; no env var involvement.
- Docstring + module docstring + comments updated to reference
discord.dm_role_auth_guild.
- E2E verified with real imports across 6 scenarios: unset, int,
string, garbage, zero, and (crucially) env-var-only-no-config all
return None except the valid int/string cases. Env var has zero
effect — policy compliance confirmed.
Sibling-site fix: _evaluate_slash_authorization was the fourth
_is_allowed_user caller and didn't pass guild/is_dm through, so slash
interactions would take the DM branch regardless of whether they came
from a guild channel. Now reads interaction.guild + in_dm and forwards.
Also updates test_discord_slash_auth fixture (_make_interaction) so
the SimpleNamespace guild mock has a get_member(uid)->None method —
required by the new guild-scoped fallback path in _is_allowed_user.
Tests exercising positive role paths still work via user.roles.
Three new regression tests in test_discord_roles_dm_scope:
- Slash DM + role in mutual public guild → rejected
- Slash in guild B + role only in guild A → rejected
- Slash in guild B + role in guild B → allowed (positive control)
368 Discord tests pass. test_discord_free_channel_skips_auto_thread
also fails on clean main (pre-existing, unrelated to this fix).
The initial DISCORD_ALLOWED_ROLES implementation (#11608, merged from #9873)
scans every mutual guild when resolving a user's roles. This allows a
cross-guild DM bypass:
1. Bot is in both public server A and private server B.
2. User holds the allowed role in server A only.
3. User DMs the bot. The role check finds the role in A and authorizes the
DM, granting access as if the user were trusted in server B.
Fix:
- DMs (no guild context) disable role-based auth by default. Opt-in via
DISCORD_DM_ROLE_AUTH_GUILD=<guild_id> restricts role lookup to one
explicitly-trusted guild.
- Guild messages check roles only in the originating guild
(message.guild), never in other mutual guilds.
- Reject cached author.roles when the Member came from a different guild
than the current message.
Backwards compatibility:
- DISCORD_ALLOWED_USERS behavior is unchanged (still works in both DMs
and guild messages).
- Deployments that rely on roles in guild channels continue to work;
role checks are now strictly scoped to that guild.
- Deployments that intentionally want role-based DM auth can opt into a
single trusted guild via DISCORD_DM_ROLE_AUTH_GUILD.
Tests: 9 new regression guards in
tests/gateway/test_discord_roles_dm_scope.py covering the bypass path,
the opt-in path, cross-guild guild-message bypass, and backwards-compat
user-ID paths. 47/47 discord-auth tests pass.
Refs: #11608 (initial implementation), #7871 (feature request),
#9873 (PR author credit @0xyg3n)
Authenticated remote OpenViking servers derive tenancy from the Bearer
key, but the client was always sending X-OpenViking-Account and
X-OpenViking-User — defaulted to the literal string "default" — which
overrode the key-derived tenant and broke auth.
- _headers(): skip X-OpenViking-Account/-User when blank or "default"
(treats the legacy default value as unset, so existing installs don't
need to touch their .env)
- _headers(): send Authorization: Bearer <key> alongside X-API-Key for
standard HTTP auth compatibility
- health(): include auth headers so /health works against servers that
require authentication
Tests cover bearer emission, legacy "default" suppression, empty
suppression, real tenant passthrough, and authenticated health checks.
Fixes the same user report as #20695 (from @ZaynJarvis); that PR could
not be merged because its branch was stale against main and would have
reverted recent OpenViking work (#15696, local resource uploads, summary
URI normalization, fs-stat pre-check).
Cloud metadata endpoints (169.254.169.254 etc.) are now always blocked
by browser_navigate regardless of hybrid routing, allow_private_urls,
or backend.
Bug: commit 42c076d3 (#16136) added hybrid routing that flips
auto_local_this_nav=True for private URLs and short-circuits
_is_safe_url(). IMDS endpoints are technically private (169.254/16
link-local), so the sidecar happily routed them to a local Chromium,
and the agent could read IAM credentials via browser_snapshot. On
EC2/GCP/Azure this is a full SSRF-to-credential-theft.
Fix: new is_always_blocked_url() in url_safety.py — a narrow floor
that checks _BLOCKED_HOSTNAMES, _ALWAYS_BLOCKED_IPS,
_ALWAYS_BLOCKED_NETWORKS only. Applied as an independent gate in
browser_navigate's pre-nav and post-redirect checks, BEFORE
auto_local_this_nav gets a chance to short-circuit. Ordinary private
URLs (localhost, 192.168.x, 10.x, .local, CGNAT) still route to the
local sidecar as the #16136 feature intends.
Secondary fix (reporter's finding): _url_is_private() now explicitly
checks 172.16.0.0/12. ipaddress.is_private only covers that range on
Python ≥3.11 (bpo-40791), so on 3.10 runtimes those URLs were routed
to cloud instead of the local sidecar. No security impact — just a
correctness fix for the hybrid-routing feature.
Closes#16234.
The MCP SDK discovers OAuth server metadata (token_endpoint, etc.) on
demand and keeps it in memory only. Without disk persistence, a restart
with valid cached refresh tokens forces the SDK to fall back to the
guessed '{server_url}/token' path — which returns 404 on most real
providers (Notion, Atlassian, GitHub remote MCP, etc.) and triggers a
full browser re-authorization even though the refresh token is fine.
Add a .meta.json file next to the existing tokens/client_info files:
HERMES_HOME/mcp-tokens/<server>.json -- tokens (existing)
HERMES_HOME/mcp-tokens/<server>.client.json -- client info (existing)
HERMES_HOME/mcp-tokens/<server>.meta.json -- oauth metadata (new)
Changes:
- HermesTokenStorage.save_oauth_metadata / load_oauth_metadata / _meta_path
— disk layer for the discovered OAuthMetadata.
- HermesTokenStorage.remove() now also clears .meta.json so
'hermes mcp remove <name>' and the manager's remove() path clean up fully.
- HermesMCPOAuthProvider._initialize cold-restores from disk before the
existing pre-flight discovery runs. If disk has metadata we skip the
discovery HTTP round-trips entirely.
- HermesMCPOAuthProvider._prefetch_oauth_metadata now persists ASM as
soon as it's discovered, so even the first pre-flight run seeds disk.
- HermesMCPOAuthProvider._persist_oauth_metadata_if_changed() is called
at the end of async_auth_flow so metadata discovered via the SDK's
lazy 401-branch (not pre-flight) is also saved for next time.
Tests cover the storage roundtrip (save/load/missing/corrupt/remove) and
the manager provider path (cold-load restore, skip-when-in-memory,
persist-on-discover, noop-when-unchanged, end-to-end async_auth_flow).
Co-authored-by: nocturnum91 <50326054+nocturnum91@users.noreply.github.com>
Drives stream_events directly and cancels the task while it is sleeping
in the poll loop, asserting the coroutine returns cleanly instead of
letting CancelledError bubble. Regression coverage for the Uvicorn
application traceback on dashboard Ctrl-C fixed by the preceding commit.
Address review feedback to use the clamp emoji (��️) instead of
the plain text 'cmp' prefix for the compression count indicator.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Display the number of context compressions in the CLI status bar when
compressions > 0, helping users understand conversation compression
pressure during long sessions.
- Wide layout (>=76 cols): shows 'cmp N' between context percent and duration
- Medium layout (52-75 cols): shows 'cmp N' between percent and duration
- Narrow layout (<52 cols): omitted to save space
- Color-coded: dim for 1-4, warn for 5-9, bad for 10+
- Hidden when zero to keep the bar clean for new sessions
Closes#18564
When multiple custom_providers share the same base_url but have different API keys,
get_custom_provider_pool_key() always returned the first match, causing wrong-key
unauthorized errors. Add provider_name parameter to prefer exact name matches
over base_url-only matching, with fallback for backward compatibility.
Fixes#19083
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.
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
