---
phase: 08-coherence-engine
plan: 02
subsystem: discography
tags: [discography, stats, emotion-distribution, recompute, coherence]

# Dependency graph
requires:
  - phase: 08-coherence-engine
    provides: "08-01 added Verification de Coherence to Step 03; 08-02 modifies a different section (Mise a Jour Discographie)"
  - phase: 04-core-track-production
    provides: "Discography update workflow in Step 03, discography-template.md"
provides:
  - "Enriched discography template with 6 stats fields (emotion distribution, theme counts, unexplored emotions)"
  - "Recompute-based stats update rule preventing stats drift over time"
  - "Bible palette reference for unexplored emotions analysis"
affects: [08-03-PLAN, create-track]

# Tech tracking
tech-stack:
  added: []
  patterns: [recompute-not-increment, bible-palette-coverage-analysis]

key-files:
  created: []
  modified:
    - "reference/templates/discography-template.md"
    - ".claude/skills/create-track/steps/03-verify-and-save.md"

key-decisions:
  - "Stats recomputed from full table on every update (never incremented) to prevent drift"
  - "Unexplored emotions derived from bible palette (primaires + secondaires) at runtime, not hardcoded"

patterns-established:
  - "Recompute-not-increment: all discography stats are derived from the full data table, never incrementally updated"
  - "Bible-palette-coverage: unexplored emotions cross-reference the artist bible palette to identify creative gaps"

# Metrics
duration: 1min
completed: 2026-04-11
---

# Phase 8 Plan 02: Enriched Discography Stats Summary

**Discography template and update instructions enhanced with 6 stats fields (emotion distribution, theme counts, unexplored emotions from bible palette) using recompute-not-increment rule**

## Performance

- **Duration:** 1 min
- **Started:** 2026-04-10T23:23:34Z
- **Completed:** 2026-04-10T23:24:33Z
- **Tasks:** 2
- **Files modified:** 2

## Accomplishments
- Enhanced discography template with 3 new stats fields: Distribution emotionnelle, Emotions non-explorees, Dernier theme
- Replaced increment-based stats update with full recompute rule to prevent stats drift over time
- Added bible palette cross-reference for unexplored emotions analysis (creative gap identification)

## Task Commits

Each task was committed atomically:

1. **Task 1: Enhance discography template with enriched Stats section** - `199b952` (feat)
2. **Task 2: Update discography update instructions in Step 03 with recompute rule and enriched stats** - `9c07d14` (feat)

**Plan metadata:** [pending] (docs: complete plan)

## Files Created/Modified
- `reference/templates/discography-template.md` - Added 3 new stats fields (Distribution emotionnelle, Emotions non-explorees, Dernier theme) to Stats section
- `.claude/skills/create-track/steps/03-verify-and-save.md` - Replaced increment-based stats subsection with recompute-based computation instructions for all 6 fields

## Decisions Made
- Stats recomputed from full table on every update (never incremented) to prevent drift -- even if table has 50+ tracks, full recount is trivial for Claude and eliminates cumulative errors
- Unexplored emotions derived from bible palette at runtime -- no hardcoded emotion lists, always reflects the artist's actual palette

## Deviations from Plan

None - plan executed exactly as written.

## Issues Encountered
None

## User Setup Required
None - no external service configuration required.

## Next Phase Readiness
- Enriched discography stats are ready for Plan 08-03 (cross-track analysis) which needs pre-computed stats for efficient analysis
- Template and Step 03 instructions are consistent (same 6 fields in both)
- Existing Step 03 sections (Suno constraints, linguistic verification, coherence verification from 08-01) remain intact

## Self-Check: PASSED

- [x] `reference/templates/discography-template.md` exists
- [x] `.claude/skills/create-track/steps/03-verify-and-save.md` exists
- [x] `.planning/phases/08-coherence-engine/08-02-SUMMARY.md` exists
- [x] Commit `199b952` found
- [x] Commit `9c07d14` found

---
*Phase: 08-coherence-engine*
*Completed: 2026-04-11*
