auth.json is rewritten by credential-pool/OAuth token refresh roughly every
14 minutes. _models_cache_source_fingerprint() hashed it via mtime/size
(#1699 _models_cache_file_fingerprint), so every token refresh churned the
fingerprint and the 24h /api/models cache was effectively dead -- the hot
GET /api/session?resolve_model=1 path paid a cold ~11.5s rebuild every few
minutes (RCA t_d127953d residual #2, t_16551f61).
Add _auth_store_semantic_fingerprint(): content-hash auth.json with a
DENY-list of known credential-rotation-only keys (access/refresh token,
expiry, per-credential status/telemetry, request_count, save updated_at)
stripped. Deny-list (not allow-list) is deliberate -- any unknown field, or
a real provider/endpoint/model-set change (active_provider, a new
credential_pool entry, base_url, source, label, auth_type, the providers{}
block, ...) stays in the fingerprint and still correctly busts the cache.
Conservative fallbacks: missing file -> marked; unreadable/corrupt ->
stat-based fallback (never less safe than pre-fix). config.yaml keeps the
cheap stat fingerprint (deliberate edits, no timer churn).
Bidirectional invariant regression test (non-tautological -- the
end-to-end churn test flips RED when the auth_json axis is reverted to
stat-based): token-only churn keeps fingerprint byte-identical AND keeps a
valid disk cache loadable; active_provider change / new credential_pool
entry / changed base_url each flip the fingerprint AND reject the stale
disk cache. Measured: 5/5 cold rebuilds per 5 refresh cycles -> 0/5.
Tests: 9 new pass; 28 adjacent (#1699/#1633/display-resolver) pass;
54 models_cache/fingerprint suite pass.
_gateway_root_pid_path() unconditionally returned <hermes_root>/gateway.pid.
Profile-scoped gateways (started with --profile <name> or via active_profile)
write their runtime files under <hermes_root>/profiles/<name>/ instead of the
root, so the root-level path never existed.
build_agent_health_payload() therefore always received a non-existent pid_path,
fell through to the stale root-level gateway_state.json, and returned alive=None.
This caused the cron/scheduled-jobs page to display "Gateway not configured" even
when a gateway was actively running.
Fix: after failing to find a root-level gateway.pid, fall back to the active
profile directory via get_active_hermes_home(). Root-level wins when it exists,
so deployments that do write there are unaffected. Errors from profile lookup are
swallowed and the root path is returned, preserving the previous safe default.
Adds five focused unit tests covering the new fallback, the priority rule, and
the error-handling path.
Instead of using len(visible_after)-1 (which points to the last visible
message and gets pushed behind the render window as more turns accumulate),
find the last [CONTEXT COMPACTION] marker in s.messages and compute the
anchor from visible messages before it.
This keeps the compression reference card at the correct boundary even
after 50+ subsequent turns have scrolled the render window past the old
anchor position.
Fixes a bug where the assistant's output message appeared to disappear
after automatic context compression because the reference card was placed
at the wrong position.
