feat(learning): close the feedback loop — rating-weighted readback & synthesis automation

[A13xSM]

Summary

PAI's learning system captures data aggressively but reads back almost nothing at session start. The readback pipeline has three critical issues:

• Broken regex: loadLearningDigest() matches **Feedback:** which hits only a fraction of learning files. Most files use **Sentiment Summary:** instead
• Shallow extraction: loadFailurePatterns() reads CONTEXT.md but only uses the directory slug, discarding the root cause analysis
• Dead subsystems: LearningPatternSynthesis, Wisdom Frames, and Reflections tools exist but have no automation — they've never been run

Changes

Change	File	Impact
Fix regex + rating-weight learnings	hooks/lib/learning-readback.ts	Matches both field patterns; lowest-rated (most informative) shown first
Read failure root cause analysis	hooks/lib/learning-readback.ts	Condensed What Happened paragraph instead of directory slug
Add synthesis readback	hooks/lib/learning-readback.ts	New loadSynthesisPatterns() reads Top Issues + Recommendations
Wire synthesis into LoadContext	hooks/LoadContext.hook.ts	Synthesis patterns injected at session start
Automate synthesis	hooks/WorkCompletionLearning.hook.ts	SessionEnd stale-check: spawns LearningPatternSynthesis in background if >7 days or >50 new ratings
CLI wrapper for Algorithm	hooks/lib/learning-readback-cli.ts	--depth standard|extended for effort-tier-aware readback
Extended+ learning enrichment	PAI/Algorithm/v3.7.0.md	OBSERVE phase loads deeper learning context at Extended+ effort

Before / After

Before (session start context — directory slugs only):

[2026-01-15] assistant-made-incorrect-assertion-without-checking
[2026-01-14] migration-failed-silently-data-lost

After (session start context — root cause analysis + rating):

[3/10] 2026-01-15 The assistant asserted a specific technical state without verifying via tools, contradicting the user's observations.
[2/10] 2026-01-14 A complex system upgrade was attempted but critical data was lost post-migration due to incomplete verification.

Plus synthesis patterns:

*Top issues:*
  1. Tool/System Failures (N occurrences, avg rating X)
*Actions:*
  1. Ask clarifying questions before starting complex tasks

Test plan

• bun run hooks/lib/learning-readback-cli.ts --depth standard — rating-weighted learnings, root cause failure analysis
• bun run hooks/lib/learning-readback-cli.ts --depth extended — more failures + learnings + synthesis
• bun run hooks/lib/learning-readback-cli.ts --synthesis — reads Top Issues + Recommendations from SYNTHESIS/
• bun run PAI/Tools/LearningPatternSynthesis.ts --month — bootstraps SYNTHESIS/ directory
• Full session test: verify PAI Dynamic Context block at session start includes richer content
• Extended task test: verify Algorithm OBSERVE invokes learning-readback-cli

🤖 Generated with Claude Code