v0.5.37

Changed

• Router score is now a pure latency+uptime composite (issue #120 hardening). Previously the routing score was 0.4*latency + 0.4*uptime + 0.2*priorityBonus — mixing explicit priority into the score could mislead tiebreakers and dashboards, because the routing comparator in getRoutingCandidates already enforces priority authoritatively. scoreCandidates() now exposes score = 0.5*latency + 0.5*uptime (pure model quality, normalized to [0, 1]), and priorityBonus is kept as a separate field for back-compat dashboards and legacy UIs. The remaining latencyWeight / uptimeWeight were rebalanced to 0.5 / 0.5 so the score stays in [0, 1] after priority is removed. Applies uniformly to CLI, Web Dashboard, and Desktop surfaces because the change lives in shared core (src/core/router-daemon.js + src/core/config.js).

Fixed

• HALF_OPEN recovery is now respected by the priority-first comparator (issue #120 regression test). The v0.5.36 fix changed getRoutingCandidates to sort by explicit priority before circuit state, but had no test for the exact scenario from the issue screenshot: a high-priority model sitting in HALF_OPEN recovery vs. a lower-priority CLOSED model. Added a regression test that pins runtime.circuit.get(key).state = 'HALF_OPEN' for priority #1 while priority #5 stays CLOSED, then verifies both /stats.routingOrder[0] and the actual chat-completions response target the HALF_OPEN priority-#1 model — locking in the fix so it can't silently regress.
• Score tiebreaker is deterministic when two models share the same priority (issue #120 regression test). Added a second regression test that puts two models at the same explicit priority (rare but reachable via direct API or auto-heal) with deliberately asymmetric probe data — fast groq (80 ms) vs. slow nvidia (2000 ms) — and verifies that the higher-score model wins routingOrder[0]. This locks in the new pure-latency+uptime score as the deterministic tiebreaker for same-priority same-state candidates, preventing future regressions where Map iteration order or stale priority data could leak back into routing.

Docs

• DEFAULT_ROUTER_SETTINGS.scoring.priorityWeight marked as preserved-for-back-compat. The field still round-trips through normalizeRouterScoring() so user configs that customize it are not silently dropped on next save, but it is now ignored by the runtime scoreCandidates(). Will be removed in a future major bump. Comment block in src/core/config.js documents the rationale.

Tests

• +2 new tests for issue #120 (test/test.js, router daemon integration hardening suite): keeps a higher-priority HALF_OPEN model above a lower-priority CLOSED one and breaks score ties deterministically by latency/uptime, not priority. Test count moves from 540 → 542, all passing.