DEFAULT_DB_PATH in hermes_state.py is computed at import time, freezing
the developer's real ~/.hermes even when a test fixture (or runtime
profile switch) later redirects HERMES_HOME. Any default SessionDB() —
e.g. gateway SessionStore — then opened the real state.db.
Add _default_db_path(): resolves get_hermes_home() fresh at call time,
while a deliberately re-pointed DEFAULT_DB_PATH (the established
monkeypatch escape hatch) still wins via an import-time snapshot
comparison, preserving existing test behavior. SessionDB.__init__ and
session_search's requirement check now use the resolver; explicit
db_path arguments are untouched.
Reimplemented from PR #11875 by @JorkeyLiu (original diff predates the
hermes_state rewrite); regression test ported and modernized.
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.
prune_old_entries' active-process guard failed open: when
has_active_processes_fn raised, the except block logged at debug and
fell through to the age check, so sessions with live background
processes attached could still be pruned — violating the documented
invariant that such sessions are never dropped. Add a continue so an
exception in the safety check fails safe (the entry is kept).
Commit 6b408e131 fixed the session_key/session_id mismatch in this
same guard but left the exception path failing open.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Users who inspect ~/.hermes/sessions/sessions.json see only gateway entries
(e.g. agent:main:whatsapp:dm:...) and mistake it for the session index that
hermes sessions list / /sessions read — which is actually state.db. Issue
#49361 reported CLI sessions as 'invisible' on this premise.
- gateway/session.py: write a self-documenting _README sentinel at the top of
sessions.json explaining it's the gateway routing index and that ALL sessions
(CLI/TUI/gateway) live in state.db; skip _-prefixed keys on load so the
sentinel never round-trips into a SessionEntry.
- Harden every sessions.json reader against the sentinel: mcp_serve loader,
gateway/mirror.py, gateway/channel_directory.py all skip _-prefixed keys.
- docs/user-guide/sessions.md: warning callout naming the exact symptom.
- tests: assert prune ignores metadata sentinels; add round-trip coverage.
Remove unused imports (F401) and duplicate/shadowed import
redefinitions (F811) across the codebase using ruff's safe
autofixes. No behavioral changes -- imports only.
- ~1400 safe autofixes applied across 644 files (net -1072 lines)
- __init__.py re-exports preserved (excluded from F401 removal so
public re-export surfaces stay intact)
- Re-exports that are imported or monkeypatched by tests but look
unused in their defining module are kept with explicit # noqa:
F401 (gateway/run.py load_dotenv; run_agent re-exports from
agent.message_sanitization, agent.context_compressor,
agent.retry_utils, agent.prompt_builder, agent.process_bootstrap,
agent.codex_responses_adapter)
- Unsafe F841 (unused-variable) fixes deliberately skipped -- those
can change behavior when the RHS has side effects
- ruff lints remain disabled in pyproject.toml (only PLW1514 is
selected); this is a one-time cleanup, not a config change
Verification:
- python -m compileall: clean
- pytest --collect-only: all 27161 tests collect (zero import errors)
- core entry points import clean (run_agent, model_tools, cli,
toolsets, hermes_state, batch_runner, gateway)
- static scan: every name any test imports directly from an edited
module still resolves
SessionStore.prune_old_entries was calling
self._has_active_processes_fn(entry.session_id) but the callback wired
up in gateway/run.py is process_registry.has_active_for_session, which
compares against session_key, not session_id. Every other caller in
session.py (_is_session_expired, _should_reset) already passes
session_key, so prune was the only outlier — and because session_id and
session_key live in different namespaces, the guard never fired.
Result in production: sessions with live background processes (queued
cron output, detached agents, long-running Bash) were pruned out of
_entries despite the docstring promising they'd be preserved. When the
process finished and tried to deliver output, the session_key to
session_id mapping was gone and the work was effectively orphaned.
Also update the existing test_prune_skips_entries_with_active_processes,
which was checking the wrong interface (its mock callback took session_id
so it agreed with the buggy implementation). The test now uses a
session_key-based mock, matching the production callback's real contract,
and a new regression guard test pins the behaviour.
Swallowed exceptions inside the prune loop now log at debug level instead
of silently disappearing.
SessionStore._entries grew unbounded. Every unique
(platform, chat_id, thread_id, user_id) tuple ever seen was kept in
RAM and rewritten to sessions.json on every message. A Discord bot
in 100 servers x 100 channels x ~100 rotating users accumulates on
the order of 10^5 entries after a few months; each sessions.json
write becomes an O(n) fsync. Nothing trimmed this — there was no
TTL, no cap, no eviction path.
Changes
-------
* SessionStore.prune_old_entries(max_age_days) — drops entries whose
updated_at is older than the cutoff. Preserves:
- suspended entries (user paused them via /stop for later resume)
- entries with an active background process attached
Pruning is functionally identical to a natural reset-policy expiry:
SQLite transcript stays, session_key -> session_id mapping dropped,
returning user gets a fresh session.
* GatewayConfig.session_store_max_age_days (default 90; 0 disables).
Serialized in to_dict/from_dict, coerced from bad types / negatives
to safe defaults. No migration needed — missing field -> 90 days.
* _session_expiry_watcher calls prune_old_entries once per hour
(first tick is immediate). Uses the existing watcher loop so no
new background task is created.
Why not more aggressive
-----------------------
90 days is long enough that legitimate long-idle users (seasonal,
vacation, etc.) aren't surprised — pruning just means they get a
fresh session on return, same outcome they'd get from any other
reset-policy trigger. Admins can lower it via config; 0 disables.
Tests
-----
tests/gateway/test_session_store_prune.py — 17 cases covering:
* entry age based on updated_at, not created_at
* max_age_days=0 disables; negative coerces to 0
* suspended + active-process entries are skipped
* _save fires iff something was removed
* disk JSON reflects post-prune state
* thread safety against concurrent readers
* config field roundtrips + graceful fallback on bad values
* watcher gate logic (first tick prunes, subsequent within 1h don't)
119 broader session/gateway tests remain green.
Jorkey Liu