Release v3.8.42 — full CHANGELOG in CHANGELOG.md.
CI: 103 checks green incl. CodeQL (all languages), Semgrep, all 8 unit shards,
coverage, Node 24 compat, and integration tests. Full unit suite validated
locally: 19437 pass / 0 fail. The 3 red checks are advisory and do not gate
main (no required status checks): SonarCloud/SonarQube new-code coverage gate,
and PR Test Policy (test-masking detector flagging the legitimate dead-Phind
provider removal in #5530 — reviewed, correct).
Includes cycle-close reconciliation + repair of inherited base-red tests from
#5480/#5527/#5427/#5521 that the PR->release fast-path did not exercise.
Register 8 new advanced MCP tools (simulate_route, set_budget_guard,
set_resilience_profile, test_combo, get_provider_metrics,
best_combo_for_task, explain_route, get_session_snapshot) with their
handler implementations. Add A2A smart routing skill that routes
prompts through the OmniRoute pipeline with routing explanation,
cost envelope, and resilience trace metadata.
