The chat PTY launch path landed on main after PR #50558 and still called
_session_latest_descendant() with the old one-arg signature. Open the
requested profile's state DB (matching the REST endpoint) so profile-scoped
resume resolves descendants in the right database.
The connector now depends on the single multiplexed gateway for per-profile
relay routing, so hosted deployments need to FORCE multiplexing on regardless
of the image's config.yaml. gateway.multiplex_profiles was config.yaml-only,
which a user could leave unset or flip off.
Add GATEWAY_MULTIPLEX_PROFILES as a standard operator override on top of the
existing config key — the same 'config.yaml is canonical, env is the operator
override' pattern the Telegram/Signal require_mention bridges use:
env (recognized token) > config.yaml (top-level or nested gateway.*) > False
- gateway/config.py: _env_multiplex_profiles_override() resolves the env var
tri-state — recognized truthy/falsy token → bool; unset/blank/unrecognized
→ None (fall through to config). Blank is deliberately None, not False, so a
provisioned-but-unpopulated Fly secret ('') can't shadow a config.yaml opt-in
(the empty-secret trap). Wired into GatewayConfig.from_dict so every consumer
(run.py, session.py via self.config) sees the resolved value.
- hermes_cli/gateway.py: the named-profile-start guard
(_guard_named_profile_under_multiplexer) reads config.yaml directly, so it
gets the SAME env precedence — otherwise env-forced multiplex would leave the
guard blind and someone could start a conflicting per-profile gateway that
double-binds a bot token. Env-forced-on trips the guard even with no
config.yaml key; env-forced-off disables it over a config opt-in.
Tests: full 3-tier precedence in test_config.py (incl. the discriminating
env-overrides-config cases + the empty/whitespace/unrecognized fall-through
trap + resolver tri-state), mutation-verified (flipping precedence fails
exactly the two env-wins tests); guard env cases in test_multiplex_lifecycle.py.
Force-on is safe on a single-profile instance: session keys stay byte-identical
(agent:main) and the _run_agent wrapper installs the per-turn secret scope, so
the fail-closed get_secret() path is satisfied.
Strict charset allowlist (alnum + - _, max 64) on the {name} path param of
the memory-provider config/setup endpoints. Prevents traversal-shaped names
from reaching find_provider_dir(), and setup now 404s when neither a
loadable provider nor a plugin manifest exists, so the command-running path
is only reachable for discoverable plugins. Adds regression tests.
The multiplex machinery already routes an inbound message to a profile via
SessionSource.profile (build_session_key namespacing + the per-turn
config/credential scope in SessionStore._resolve_profile_for_key). But the
relay path never populated it: _event_from_wire rebuilt the SessionSource
field-by-field and dropped any 'profile' the connector sent, so a
Team-Gateway (connector + relay) message could not be routed to a specific
profile the way the /p/<profile>/ HTTP prefix and per-credential polling
adapters already can.
Stamp source.profile from the wire payload in _event_from_wire. This is the
last missing link for NAS-driven per-profile routing over the relay in
multiplex mode; the connector populating the field ships separately
(gateway-gateway contract adds the optional wire field).
Back-compat: absent 'profile' → None → legacy agent:main namespace,
byte-identical to today for every single-profile gateway.
The profile+gateway topology added in #60537 sits entirely behind the
loopback/--insecure auth gate. But a hosted agent (Hermes Cloud) binds
non-loopback with OAuth, so should_require_auth is True, and NAS reads
/api/status over the network (fly-provider.ts getInstanceRuntimeStatus)
with no session token. On that gated path the whole topology block was
omitted, so the Portal could never render the profile list.
Split the topology readout by sensitivity:
- profile NAMES (profiles) + gateway_mode are low-sensitivity product
surface and now ride the always-public status body, surviving the auth
gate so NAS/the Portal can enumerate profiles.
- the per-gateway detail (gateways[], carrying host ports) is deployment
recon and stays gated alongside hermes_home / config_path / env_path /
gateway_pid / gateway_health_url.
The collector now runs unconditionally (still in the executor, off the
event loop). No new fields; only the gate placement changes.
Headless/hosted deploys run the dashboard server without COLORTERM in
the process environment, so chalk inside the PTY-spawned TUI child
downgraded every skin hex color to the xterm 256 palette — the default
skin's bronze banner border (#CD7F32) snapped to palette 173 (#D7875F,
salmon red) and the gold caduceus rendered red/yellow on fresh cloud
instances. Local launches never reproduced it because the operator's
interactive terminal leaks COLORTERM=truecolor into the server env.
xterm.js always renders 24-bit RGB, so the dashboard PTY child should
always advertise truecolor: backfill COLORTERM=truecolor in
_resolve_chat_argv via setdefault (an explicit operator value wins).
Verified with a clean-env PTY probe of the real TUI binary:
no COLORTERM -> 0 truecolor SGRs / 165 palette-256 (salmon 38;5;173);
with the backfill -> 166 truecolor SGRs, exact bronze 38;2;205;127;50.
Session-based channel discovery resurrected historical origins for
platforms with no connected adapter, exposing stale send_message
targets that can no longer deliver. Gate both the enum loop and the
plugin-registry loop on the live adapter set.
Surgical reapply of the channel-directory portion of PR #25959 (branch
was 6.5k commits stale; the text-batching delay changes bundled there
were dropped - separate concern, defaults have since been retuned on
main).
Co-authored-by: Marco-Olivier Lavoie <marcolivier@gmail.com>
Docs portion of PR #57067: 'bot connects but never replies' section
pointing at the gateway.log warning and the allowlist/policy knobs.
Co-authored-by: ooovenenoso <120500656+ooovenenoso@users.noreply.github.com>
Log a one-shot structured warning when Discord denies traffic because
no allowlist/policy is configured, and correct the setup wizard's
inverted warning text. The fail-closed default itself is unchanged.
Fixes#58682.
Restructures the five parallel export sections into a single 'Export
Sessions' section: a format table (jsonl/md/qmd/html/trace + --only
user-prompts), one shared-filters paragraph covering all formats, and
per-format subsections nested beneath. EN + zh-Hans.
When a user explicitly configures a platform with its native composite
(e.g. platform_toolsets.discord: [hermes-discord]), the discord and
discord_admin toolsets were silently stripped by _DEFAULT_OFF_TOOLSETS
even though the composite contains those tools. The strip could not tell
an explicit composite opt-in apart from the unconfigured default.
Track whether the platform was explicitly configured and, when it was,
exempt toolsets that are both default-off and platform-restricted to the
current platform from the strip. Only discord/discord_admin are affected
(the sole entries in both _DEFAULT_OFF_TOOLSETS and
_TOOLSET_PLATFORM_RESTRICTIONS). Unconfigured and empty-list platforms
keep the security default-off behaviour.
/api/status (loopback/insecure binds only) now includes:
- profiles: every profile on the host (default + named)
- gateway_mode: none | single | multiple | multiplex
- gateways: one entry per live gateway with the host ports its
port-binding platforms listen on, plus served_profiles when the
default gateway is multiplexing
Ports resolve from each profile's config.yaml (top-level platforms:
wins over gateway.platforms:, matching load_gateway_config precedence)
with adapter defaults as fallback. Topology enumeration runs in an
executor so the profile scan + process-table probes stay off the event
loop, and the whole block is gated behind the same loopback-only split
as hermes_home/gateway_pid so gated binds leak nothing new.
signal.SIGKILL / os.killpg don't exist on Windows. The watchdog is only
spawned on POSIX (wrap site gates on os.name), but guard via getattr with
a plain terminate/kill fallback so an accidental Windows import can't
AttributeError.
The salvaged test predates the parked-server self-probe
(_PARKED_RETRY_INTERVAL, landed on main after the PR branched): after the
final failed retry, run() parks in a real asyncio.wait that the patched
asyncio.sleep doesn't cover, stalling the test 300s. Signal shutdown once
the retry budget is exhausted so the park exits immediately.
Two fixes on top of the salvaged parent-death watchdog:
- Apply the watchdog wrap AFTER the OSV malware preflight so the check
inspects the real npx/uvx package instead of the python wrapper
(the wrap previously made the preflight a silent no-op for every
stdio server).
- The real server runs in its own process group under the watchdog, so
the graceful-shutdown killpg no longer reached it; the watchdog now
forwards SIGTERM/SIGINT to the child's group, keeping wedged servers
killable on clean shutdown.
A stdio MCP server (e.g. `npx -y mcp-remote <url>`) is spawned as a direct
child of the Hermes process. Existing teardown (MCPServerTask.shutdown() /
_kill_orphaned_mcp_children()) reaps it correctly on a clean exit, but a
kill -9 / crash / force-quit of the Hermes process skips that path entirely
-- the child (and its own descendants, e.g. mcp-remote's spawned node
process) is orphaned and keeps running. Repeated ungraceful restarts pile up
N orphaned processes racing to hold the same upstream SSE session, producing
errors like 'Invalid request parameters' on legitimate reconnects.
macOS/Linux have no portable equivalent of prctl(PR_SET_PDEATHSIG) at the
Python subprocess level, so this adds a thin supervisor
(tools/mcp_stdio_watchdog.py) that:
- execs the real command as its own child in its own process group
- passes stdin/stdout/stderr through untouched (MCP stdio protocol
talks directly over those streams)
- polls the original spawning PID with the same orphan-detection
algorithm already proven in tui_gateway/slash_worker.py (ppid
comparison + psutil creation-time guard against PID reuse)
- SIGTERM-then-SIGKILL's the child's process group the moment the
original parent is gone
Wired into _run_stdio via a new _wrap_command_with_watchdog() helper,
POSIX-only (matches the existing killpg-based cleanup's platform scope),
fails open (any error resolving pid/create-time falls back to the
unwrapped command) so this can never be the reason a working MCP server
stops starting.
Verified: reproduced the exact orphan scenario standalone (fake parent
process spawns watchdog + fake long-running MCP child, kill -9 the fake
parent, confirm the watchdog reaps the child within its poll window with
zero leaked processes). Updated test_mcp_tool_issue_948.py's resolved-path
assertion to check the watchdog-wrapped command instead of the raw
resolved binary. Full test_mcp_tool.py + test_mcp_stability.py +
test_mcp_tool_issue_948.py suite: 232 passed. Full -k mcp sweep across the
whole test tree: 1003 passed, 2 skipped, 0 failed.
Sibling sites of the same bug class as the salvaged stdio fix:
- SSE, streamable-HTTP (new + deprecated API) initialize() calls are now
bounded by the same connect_timeout, so an endpoint that accepts the
connection but never answers the handshake cannot park the run() task
forever.
- start() now cancels its ensure_future'd run() task when the caller's
connect timeout cancels start() itself — the orphaned-task leak was
the root mechanism behind #59349, and this closes the class for any
future pre-ready hang.
A stdio MCP server that never completes `initialize` (e.g. emits a
non-JSON-RPC frame and then blocks on stdin) leaks a child process plus its
stdio pipes/pidfd on every discovery-retry cycle — unbounded, until the
gateway hits EMFILE and every new open()/spawn fails (#59349).
Root cause (confirmed by instrumenting the live repro, and different from the
issue's own hypothesis): the spawned child IS captured in `new_pids`, so the
report's "new_pids empty at finally" guess is not it. The real cause is that
`session.initialize()` hangs forever on the garbage stream. `connect_timeout`
only bounds the caller's `.result()` wait on the foreground thread — it does
NOT cancel the `_run_stdio` coroutine on the background MCP loop. So the
coroutine is stuck at `await session.initialize()` permanently, its cleanup
`finally` never runs, the child is never reaped, and it stays invisible to the
orphan-reaper (whose `_orphan_stdio_pids` set never gets populated).
Fix: wrap `session.initialize()` in `asyncio.wait_for(..., connect_timeout)`
so a stalled handshake fails instead of hanging. The TimeoutError unwinds
through the SDK context managers (closing the child's stdin -> EOF -> exit)
and lets the existing `finally` reap any straggler. Cross-platform — no
signals/pgid/proc.
Scope: stdio only. The HTTP path has the same `await session.initialize()`
shape but spawns no subprocess (so it can't cause this leak) and already has
httpx transport timeouts.
Verified: the reporter's repro goes from unbounded growth to draining to zero;
added a hermetic regression test (fake transport whose `initialize()` hangs,
asserts the connect is bounded by connect_timeout) that fails on the pre-fix
code and passes on the fix; 566 existing MCP tests pass; ruff clean.
Repro confirmed on macOS (pipe FDs); the Linux-specific pidfd growth in the
report should be equivalent — the reporter offered to validate on Linux.
Closes#59349
Merge the two cherry-picked reap call sites into one unscoped sweep at
the top of _run_stdio (the unscoped sweep is a superset of the
per-server one), and run it via asyncio.to_thread so the 2s
SIGTERM->SIGKILL escalation cannot stall the shared MCP event loop.
When an MCP stdio subprocess fails to connect (token expiry, port
contention, timeout), the run() reconnect loop retries with backoff.
Each retry calls _run_stdio() which spawns a new process pair, but the
previous failed pair was only detected as orphaned (added to
_orphan_stdio_pids) — never actually killed. This caused rapid zombie
accumulation: 5 failed attempts × 2 procs each = 10 orphans competing
for the same port.
Add a _kill_orphaned_mcp_children() call at the top of _run_stdio(),
before the _snapshot_child_pids() baseline, so any orphans from prior
failed attempts are reaped before a new subprocess is spawned.
Fixes#57355
ChatPage sends ?attach=<localStorage token> so /chat reattaches to its
live PTY across refresh. onclose: 4410=process-exit (session ended),
4409=superseded (quiet), else transient -> auto-reconnect.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Keep-alive path when ?attach=<token> is present: PTY outlives the socket
via PTY_REGISTRY, reattaches on reconnect. No token = unchanged legacy
pump (_legacy_pump). detach (not close) on disconnect.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
_run_approval_gate's gateway branch only queued via submit_pending, so
plugin-escalated approvals never sent the interactive embed+buttons on
Discord/Telegram/Slack (#59413) - the user was never notified and the
action stayed silently blocked. Mirror check_dangerous_command's path:
when a session notify callback is registered, run the blocking
_await_gateway_decision round-trip (redacted payload, once/session/
always persistence, deny/timeout produce definitive BLOCKED outcomes);
fall back to submit_pending only when no callback exists.
Fixes#59413.
Follow-up on the #56966 salvage:
- is_provider_explicitly_configured(): an env-seeded credential-pool entry
only counts as explicit while its env var still resolves to a usable
secret. A stale auth.json entry left behind after the user deletes the
var no longer keeps the provider in the picker forever (#55790).
- TUI modelPicker + dashboard ModelPickerDialog/api.getModelOptions pass
include_unconfigured=true explicitly, preserving their full-universe
setup-affordance behavior now that the backend defaults to the
configured subset.
- desktop lib/model-options.ts routes explicit_only through the shared
requestModelOptions() helper (added on main after the PR branched).
- regression tests for ambient (gh_cli) pool sources, explicit manual/
device-code sources, and stale vs live env-seeded entries.
* feat(trace): upload sessions to HF Agent Trace Viewer
Salvage trace upload as a smaller CLI-first feature: deterministic Claude Code JSONL export, fail-closed redaction, lazy Hugging Face dependency, and no gateway slash-command wiring.
* chore(trace): drop external porting references from docstrings
Describe the trace-upload design in Hermes' own terms.
* feat(sessions): fold trace upload into 'sessions export --format trace'
Integrates the HF Agent Trace Viewer exporter (PR #36145) onto the
unified export surface instead of a separate 'hermes trace' subcommand:
- --format trace: Claude Code JSONL to stdout/file, or one
<id>.trace.jsonl per session for filtered bulk export; defaults to
the most recent session when no --session-id/filters given.
- --upload pushes to the user's private HF traces dataset (--public to
opt out of private); reads HF_TOKEN with guided setup when missing.
- traces are secret-redacted by default (force mode); --no-redact opts
out after review; redaction failure blocks export (fail closed).
- hermes_cli/trace.py + subcommands/trace.py removed; agent/trace_upload.py
is the single engine. Docs EN + zh-Hans; 4 new CLI tests.
The salvaged SelfHostedBackend made self-hosted servers reachable via
mem0.json / MEM0_HOST, but the setup wizard still offered only Platform
and OSS — exactly the gap users hit (Discord report: 'At memory setup
there's only 2 options'). Adds a third wizard mode:
- interactive picker: Platform / Self-hosted server / Open Source
- non-interactive: hermes memory setup mem0 --mode selfhosted
--host http://... [--api-key ...] [--dry-run]
- host -> mem0.json (behavioral), API key -> .env as MEM0_API_KEY
(secret), optional key for AUTH_DISABLED servers
- best-effort reachability check against the server, non-fatal
- README + memory-providers docs updated with the wizard path
`_save_anthropic_oauth_creds` wrote the Anthropic OAuth token file with
`os.replace(tmp, path)` followed by a post-hoc `chmod(0o600)`. Between the
rename and the chmod the token file existed at the default umask (0o644 on most
hosts) — a window in which another local user could read the access/refresh
tokens.
Write via `utils.atomic_json_write(..., mode=0o600)`, which creates the temp
with mode 0o600 *before* any content is written, fsyncs, atomically replaces,
preserves the existing file's owner, and cleans up its temp on failure. This
matches the `atomic_json_write(mode=0o600)` call already used elsewhere in this
module for the credential-pool write, and #56644's owner preservation.
Tests updated for the new mechanism, plus a check that the write goes through
`atomic_json_write(mode=0o600)` (mutation-verified).
Opt-in discord.approval_mentions (config.yaml, bridged to
DISCORD_APPROVAL_MENTIONS) prepends <@id> mentions for numeric
allowlist entries to exec-approval prompts, with a scoped
AllowedMentions override (users only). Default off - no surprise
pings. Reapplied onto the content-mirror layout from #60245: mentions
prepend to the visible content block and its truncation budget.
Original implementation from PR #39719; commits arrived bot-authored,
re-attributed to the contributor.
