- Add 05-01-SUMMARY.md with performance metrics and decisions - Update STATE.md to Phase 5, Plan 1 of 3 (80% overall progress) - Record key decisions: configurable tiers, dual-format output, YAML provenance - Document deviation: pl.count() -> pl.len() deprecation fix Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>