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.
Flip the resolve_persist_behavior() fallback from persist-to-config to
session-only. A plain /model <name> (typed or via any picker — CLI,
TUI/Desktop, gateway) now affects only the current session; --global
persists explicitly, and model.persist_switch_by_default: true restores
the old opt-out behavior for users who want switches to stick.
This is the root cause behind the recurring 'session switch applied
globally' bug class (#61458, #63083, #58290, #61190): every surface
funnels its no-flag default through this one function, so per-surface
patches kept missing paths. Fixing the default fixes all surfaces at
once: CLI typed + picker, TUI/Desktop config.set + slash, gateway typed
+ inline picker.
Builds on liuhao1024's #58371 (--provider session scoping, cherry-picked
as the previous commit) and supersedes the per-surface #61488.
Same bug family as #47828, at the config-persistence layer instead of
the in-memory agent layer:
- cli.py (#25106): the --global /model handlers (both the typed-name
path in _handle_model_switch and the picker path in
_apply_model_switch_result) wrote model.default/model.provider to
config.yaml but never touched base_url/api_mode at all. A provider
switch left the OLD endpoint on disk; the next launch reconnected to
the previous provider's host under the new model name.
- gateway/slash_commands.py (#25107): both persist-global blocks (the
picker-tap callback and the typed /model --global path) guarded the
write with two INDEPENDENT ifs — `if result.base_url: ...` and
`if target_provider != "custom": clear_model_endpoint_credentials(...)`.
For named providers the second if always cleared stale values, masking
the bug. For a custom provider with an empty resolved base_url, neither
branch fired, so the previous custom endpoint's base_url/api_key/
api_mode survived untouched in config.yaml.
Fix: explicit set-if-truthy/clear-if-falsy for base_url and api_mode at
all four call sites, matching the already-correct pattern in
tui_gateway/server.py:_persist_model_switch (fixed for #48305).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>