Wires the foundation for ADR-043's HybridRouter into the kernel boot
sequence so domain plugins can finally receive an llmRouter dependency.
Phase 1 lands the kernel/CLI/provider changes; Phase 2 will plumb the
router through all 13 domains.
Background: the LLM-enhancement code paths added in ADR-051
(isLLMAnalysisAvailable() across 14 services) were unreachable because
no construction site ever passed an llmRouter — services accepted the
optional dependency but no caller injected it. ProviderManager +
HybridRouter were only instantiated from the `aqe llm advise` CLI
subcommand.
Changes
- src/shared/llm/providers/gemini.ts: read GOOGLE_API_KEY as a third
fallback after GOOGLE_AI_API_KEY and GEMINI_API_KEY, so users with
the conventional Google key name don't need to alias it themselves.
- src/shared/llm/router/config-store.ts (new): load/save
.agentic-qe/llm-config.json with env-detection layering
(defaults < disk < env < explicit override). Strips apiKey fields
defensively before persisting. Filters out providers the
ProviderManager doesn't yet construct (onnx) to keep boot logs
clean.
- src/shared/llm/llm-router-service.ts (new): builds a HybridRouter
from the loaded config, picks primary/fallbacks from the available
set honoring the user's defaultProvider when possible. Accepts an
injected ProviderManager for tests.
- src/kernel/interfaces.ts: extends QEKernel with llmRouter? and
KernelConfig with llmRouter.enabled ('auto'|true|false) +
configOverride + providerManager test-injection.
- src/kernel/kernel.ts: kernel-singleton llmRouter built during
initialize(), exposed via kernel.llmRouter, forwarded to all 13
DOMAIN_FACTORIES as a 4th arg. Phase 2 wires each factory through
to its coordinator/services; for now the wrappers accept-and-discard.
- src/cli/commands/llm-router.ts: replaces the
`// would be persisted in real implementation` stub with real
read/write through the config-store. `aqe llm config --set` now
survives a process restart. Adds AQE_CONFIG_ROOT env var as a test
seam so tests don't mutate the real .agentic-qe/.
Tests (110 total, all passing)
- gemini.test.ts: +3 new tests for each env-var alias, existing
tests updated to clear all three names
- config-store.test.ts (new, 29 tests): load/save/merge precedence,
env detection, secret stripping, atomicity
- llm-router-service.test.ts (new, 10 tests): pickEnabledProviders,
pickPrimaryAndFallbacks, end-to-end with injected mock provider
- kernel-llm-router.test.ts (new, 4 tests): kernel boot with router
enabled=false / auto-no-providers / injected mock, chat() round-trip
- llm-router.test.ts (CLI): +2 persistence-to-disk tests, env-isolated
- tests/mocks/index.ts: shared createMockLLMProvider() helper
Verification
- npx tsc --noEmit: clean
- 110 tests pass; no regressions in existing kernel.test.ts (34/34)
- Stderr noise from PersistentSONAEngine init is pre-existing and
unrelated to this change.
What this commit does NOT do
- Does NOT change behavior for any user yet — DOMAIN_FACTORIES
wrappers still discard the llmRouter param. Phase 2 lights up the
domain services.
Refs ADR-043 (vendor-independent LLM), ADR-051 (LLM-enhanced services)
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Dragan Spiridonov