Adds 8 new axes to FACTOR_FNS that derive from data already present in
v4 episodes (no parser/episode-writer changes). Cheapest of the 4-pass
factor analysis expansion plan in
memory/project_brain_factor_analysis_4passes.md.
New axes (string-key buckets, null-safe on missing/legacy fields):
- prompt_signal: raw value (new_task / continuation / correction / approval / neutral / null)
- classifier_source: classifier_output.source verbatim (llm / regex / prefilter / prefilter_inherited / cache / null)
- degraded_mode: true / false
- path_type: regulated / improvised / null
- retry_count: 0 / 1-2 / 3+ (count events[].kind=retry)
- error_count: 0 / 1 / 2+ (count events[].kind=error)
- hard_floor_invoked: true / false (primary_rationale.hard_floor.invoked)
- iterations_bucket: 0 / 1-3 / 4-10 / 11+ (task_cost.iterations)
Together with the 11 existing axes, the factor matrix now covers 19
discrete dimensions. Older v2 episodes without these fields surface
as 'null' / 'false' / '0' buckets — no throws, no skipped rows.
TDD: 9 tests added in brain-retro-analyzer.test.mjs (one per axis + a
smoke that all 8 land on the matrix via analyze() on a minimal v2
episode). Full suite 599/599 GREEN.
LEFTHOOK=0 due to known quirk #111 (gitleaks pre-commit hangs on heavy
package-lock.json diff in workspace). Manual gitleaks scan: clean.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Дмитрий
4f362a9e62