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.
_handle_active_session_busy_message (the busy_session_handler most
platform adapters register) demotes busy_input_mode='interrupt' to
queue semantics for two reasons: active subagents (#30170) and, as of
this week, context compression in flight (#56391) — interrupting while
compression holds the state.db lock races a new turn against the
pre-rotation parent session, and if that new turn also grows past the
compression threshold it starts its own uncancellable compression on
the same stale parent, forking orphaned compression siblings.
_handle_message has its own, independent inline "PRIORITY" busy-path
(reached directly with a live running agent — see the `if _quick_key in
self._running_agents:` guard, exercised end-to-end by the existing
tests/gateway/test_running_agent_session_toggles.py harness). Its own
comment says it mirrors _handle_active_session_busy_message's subagent-
demotion rationale verbatim, and it does demote for active subagents,
but it never checked _session_has_compression_in_flight, so a plain-text
follow-up landing on this path while compression is mid-flight still
called running_agent.interrupt() unconditionally.
Fix: add the same _session_has_compression_in_flight(session_key) check
before the PRIORITY interrupt call, demoting to queue exactly like the
sibling path.
Tests: tests/gateway/test_priority_path_compression_demotion_56391.py
drives _handle_message end-to-end (reusing the test_running_agent_
session_toggles.py harness pattern) with a live running agent and a
mocked compression lock. Mutation-verified: reverting the fix makes the
demotion test fail (interrupt() gets called) against the pre-fix code;
a control test pins the unchanged default-interrupt behavior when no
compression lock is held.