Second, deeper pass over tools/gateway/hermes_cli plus first pass over
the trees wave 1 missed (acp, acp_adapter, skills, computer_use, docker,
dashboard, conformance, monitoring, secret_sources, hermes_state,
providers). Same rubric as wave 1 (AGENTS.md test policy); security,
alternation/caching invariants, issue-number regressions, and E2E kept.
Real test-quality fixes found and rooted out along the way:
- tests/tools/test_command_guards.py made real auxiliary-LLM HTTPS calls
(DEFAULT_CONFIG smart-approval leaked in) — pinned approval
mode=manual via autouse fixture: 17.4s → 0.4s.
- test_model_switch_custom_providers.py / test_user_providers_model_switch.py
silently probed live provider catalogs (~2s/test) — stubbed
cached_provider_model_ids/provider_model_ids/fetch_api_models.
- test_telegram_noise_filter.py: 15-platform copy-paste matrix over
shared gateway.run logic → 3 representative platforms (55s → 3.9s).
- test_gateway_shutdown.py: stop()'s 5s interrupt-deadline loop spun on
MagicMock agents — interrupt.side_effect now clears _running_agents
(22s → 1.0s).
- test_gateway_inactivity_timeout.py poll-harness timings shrunk 3-5x
(24s → 1.1s); test_mcp_stability.py backoff/SIGTERM-grace sleeps
patched (15.4s → 2.5s); test_async_delegation.py negative-drain wait
5s → 0.5s.
- test_telegram_init_deadline.py: loop-block margin restored to 1.0s
with rationale comment — the watchdog-dump assertion needs the loop
blocked well past deadline+grace under parallel load (flaked once in
the 40-worker verification run at a 0.2s margin).
Verification: full hermetic suite via scripts/run_tests.sh —
2,438 files, 21,718 tests passed, 0 failed, 293.9s wall.
Suite totals vs original baseline: 46,820 → 19,757 test functions
(−57.8%), wall 583.5s → 293.9s (−50%), subprocess CPU 13,564s → 11,623s.
Closes#31066. Closes#31110.
An unhandled `telegram.error.TimedOut` (or peer `NetworkError` /
`httpx` connection error) propagating to the asyncio event loop killed
the entire gateway process, taking down every profile attached to the
same runner. systemd restarted the service after ~5s but the active
conversation turn was lost.
Public adapter methods (`adapter.send`, `adapter.edit_message`,
`adapter.send_voice`, …) are individually try/except-wrapped on
current main, but at least one async path was reaching the loop with
TimedOut unhandled — the report's traceback ends at the deepest httpx
frame and doesn't pinpoint the caller.
Rather than audit 30+ call sites blind, install a loop-level safety net:
`_gateway_loop_exception_handler` is set as the loop's exception handler
in `start_gateway()` after `asyncio.get_running_loop()`. It classifies
the exception via `_is_transient_network_error()` (walks the
__cause__/__context__ chain, matches on class name so the test suite
doesn't need the real telegram/httpx packages installed). Transient
errors are logged at WARNING with full traceback so the originating
call site stays diagnosable; everything else forwards to
`loop.default_exception_handler` so real bugs still surface.
Tests cover the classifier (known transients accepted, real bugs
rejected, cause/context chain unwrap, cyclic-cause termination) and the
handler (swallow + log warning, forward unknowns, missing-exception
context). One end-to-end test schedules an orphan task raising TimedOut
and asserts `asyncio.run` returns cleanly.
