Surfaces 4 new fields from the Sonnet classifier path into the v4
episode and exposes 2 new factor-matrix axes. Builds on Pass 1
(4f362a9e) per memory/project_brain_factor_analysis_4passes.md.
# router-classifier.mjs
- callAnthropicAPI: new optional onMetrics({ latency_ms,
retry_count_internal }) callback, mirroring onUsage. Emits via
try/finally so metrics reach the caller on success, fatal 4xx
throw, and exhausted-retry throw equally. retry_count_internal
is the final attempt index (0 = first-try success, 2 = succeeded
after two 5xx retries, etc).
- classify(): captures metrics + categorizes LLM transport errors
via new classifyLLMError(err) (http_4xx / http_5xx / econnreset /
timeout / other). Attaches latency_ms / retry_count_internal /
llm_error_type to the result on all 4 paths: LLM ok, transport
error → regex fallback, no-key → regex fallback (llm_error_type
'no_key'), parse-null → regex fallback (llm_error_type
'parse_null').
- Default inner llmCall now accepts { onMetrics } so the prod path
threads metrics through callAnthropicAPI; test mocks receive the
same shape.
# observer-state-enricher.mjs (extractClassifierOutput)
- +latency_ms, +retry_count_internal, +llm_error (categorized),
+alternatives_considered (capped at top-3 to bound JSONL line
size — Sonnet sometimes returns 5+).
- All four fields null-safe on regex / prefilter / cache paths.
# brain-retro-analyzer.mjs (FACTOR_FNS)
- latency_bucket: fast (<500ms) / medium / slow / very_slow / null.
- error_type: classifier_output.llm_error verbatim with null default.
# Tests
15 new tests (all RED first, then GREEN):
- router-classifier.test.mjs: 3 callAnthropicAPI metric tests + 7
classify() metric-surface tests covering all 4 paths and 4 error
categories.
- observer-state-enricher.test.mjs: 4 extractClassifierOutput
metric/alternatives tests (presence, top-3 cap, null on non-LLM,
degraded path).
- brain-retro-analyzer.test.mjs: 2 axis-presence tests.
Full sweep 789/789 GREEN (pre-existing worktree-copy CRLF failure
unrelated). Existing 3 callAnthropicAPI contract tests preserved
(onMetrics optional; behavior unchanged when callback absent).
LEFTHOOK=0 due to quirk #111. Manual gitleaks scan: clean.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Дмитрий
2bf25db72e