# Sprint v0.1.17 Validation Report

**Date:** 2026-04-01  
**Status:** ❌ **INCOMPLETE - Thresholds Not Met**  
**Report Author:** Opencode Agent  

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## Executive Summary

Sprint v0.1.17 "Persisted Validation and Hybrid Coherence Closure" has **NOT** achieved its primary goal. While all P0-P5 code implementations were successfully deployed, the generated sessions are **not meeting the required thresholds**.

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## Sprint Goal Thresholds

| Threshold | Target | Status |
|-----------|--------|--------|
| `coherence_score` | >= 6.5 | ❌ NOT MET |
| `pack_coherence.music` | >= 0.65 | ❌ NOT MET |
| `pack_coherence.overall` | >= 0.50 | ❌ NOT MET |
| `mandatory_midi_hook.materialized` | true | ❌ NOT MET |
| `generation_mode` | library-first-hybrid | ❌ NOT MET |
| `family_adherence_rate` | >= 0.60 | ❌ NOT MET |

---

## Session Analysis

### Latest Session: `0de71b5cf9c7`

| Metric | Value | Pass/Fail |
|--------|-------|-----------|
| **session_id** | `0de71b5cf9c7` | ✅ Present |
| **timestamp** | 1775074790.2418113 | - |
| **genre** | reggaeton | - |
| **bpm** | 99.384 | - |
| **key** | Am | - |
| **coherence_score** | **5.5** | ❌ FAIL (target >= 6.5) |
| **coherence_verdict** | WEAK - Lacks coherence, needs structural fixes | ❌ FAIL |
| **generation_mode** | None | ❌ FAIL (target: library-first-hybrid) |
| **library_first_mode** | None | ❌ FAIL (target: true) |
| **pack_coherence** | Not present in manifest | ❌ FAIL |
| **mandatory_midi_hook.materialized** | **false** | ❌ FAIL (target: true) |
| **mandatory_midi_hook.track_index** | None | ❌ FAIL |
| **piano_presence.has_piano** | false | - |
| **piano_presence.has_hybrid_piano** | None | ❌ FAIL (target: true) |
| **piano_presence.piano_score** | 0.0 | ❌ FAIL |
| **reference_name** | ejemplo.mp3 | ✅ Present |

### Previous Session: `f4ae30771df5`

| Metric | Value | Pass/Fail |
|--------|-------|-----------|
| **session_id** | `f4ae30771df5` | ✅ Present |
| **coherence_score** | **5.6** | ❌ FAIL (target >= 6.5) |
| **generation_mode** | midi-first | ❌ FAIL (target: library-first-hybrid) |
| **library_first_mode** | false | ❌ FAIL |
| **mandatory_midi_hook** | Present but not materialized | ⚠️ PARTIAL |
| **piano_presence** | None detected | ❌ FAIL |

### Previous Session: `e3c3691cc922`

| Metric | Value | Pass/Fail |
|--------|-------|-----------|
| **session_id** | `e3c3691cc922` | ✅ Present |
| **coherence_score** | **4.6** | ❌ FAIL (target >= 6.5) |
| **generation_mode** | library-first-hybrid | ✅ PASS |
| **library_first_mode** | true | ✅ PASS |
| **coherence_verdict** | WEAK - Lacks coherence, needs structural fixes | ❌ FAIL |

---

## P0-P5 Implementation Status

### ✅ P0: Job Persistence Infrastructure
**Status:** DEPLOYED
- Job history file: `~/.abletonmcp_ai/generation_jobs.json`
- [P0] log markers present in server.py
- Job state persistence and recovery implemented

### ✅ P2: Music Bus Coherence Tightening
**Status:** DEPLOYED
- Bus-aware pack coherence logic in place
- Target: music >= 65%, overall >= 50%
- DOMINANT_PALETTE tracking implemented
- PACK_COHERENCE log markers present

### ⚠️ P3: Piano Hybrid Truth Enforcement
**Status:** DEPLOYED BUT NOT ACTIVATED
- Code present in `_calculate_piano_presence()`
- [P3_HYBRID_TRUTH_ENFORCED] marker present
- **Issue:** Piano/hybrid piano not being detected or materialized
- No MIDI hook actually created in tracks

### ✅ P4: Duplicate Layer Consolidation
**Status:** DEPLOYED
- `_consolidate_duplicate_layers()` function present
- Musical contrast detection implemented

### ✅ P5: Senior Validation Metrics
**Status:** DEPLOYED
- `_validate_senior_metrics()` function present
- Threshold validation for all metrics
- Senior dashboard extraction implemented

---

## Root Cause Analysis

### Primary Issues

1. **Library-First-Hybrid Mode Not Triggering**
   - Sessions are generating in `midi-first` mode or no mode set
   - `library_first_mode` is None or False instead of True
   - This prevents pack coherence calculation and bus-aware selection

2. **Piano Hybrid Truth Not Materializing**
   - `mandatory_midi_hook.materialized` is consistently false
   - `has_hybrid_piano` is None or false
   - The P3 hook reservation is happening but not actually creating tracks

3. **Pack Coherence Metrics Missing**
   - `pack_coherence` field not being written to manifest
   - DOMINANT_PALETTE logs show coherence calculation but not persisting
   - Missing connection between layer selection audit and manifest

4. **Coherence Score Below Threshold**
   - All sessions scoring 4.6-5.6 (target: >= 6.5)
   - Structural fixes still needed in arrangement

---

## Recommendations for Next Sprint

### Critical Fixes Needed

1. **Fix Library-First-Hybrid Mode Detection**
   - Ensure `library_first_mode=true` when reference_path is provided
   - Verify mode is being passed through generation pipeline
   - Add explicit mode enforcement in `generate_track`

2. **Fix MIDI Hook Materialization**
   - Debug why `mandatory_midi_hook.materialized` remains false
   - Ensure P3 hook actually creates a MIDI track
   - Add validation that hook is materialized before completing

3. **Fix Pack Coherence Persistence**
   - Connect layer selection audit to manifest persistence
   - Ensure `pack_coherence` dict is written to generation_manifests.json
   - Add senior validation to verify coherence before marking complete

4. **Improve Coherence Scoring**
   - Structural arrangement fixes needed
   - Consider additional musical theme enforcement
   - Evaluate judge results integration

---

## Code Locations

### P0-P5 Implementations
- `server.py` lines 598-700: P0 Job persistence
- `server.py` lines 712-880: P3 Piano hybrid truth
- `server.py` lines 3497-3620: P4 Duplicate consolidation
- `server.py` lines 8810-8997: P5 Senior validation
- `reference_listener.py` lines 143-449: P2 Bus-aware coherence

### Manifest Files
- `C:\Users\ren\.abletonmcp_ai\generation_manifests.json`
- `C:\Users\ren\.abletonmcp_ai\coherence_reports\`

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## Conclusion

**Sprint v0.1.17 is NOT COMPLETE.**

While the P0-P5 code implementations are deployed, the system is not meeting the required thresholds for a successful library-first-hybrid generation with piano truth validation. The next sprint must focus on:

1. Fixing the library-first-hybrid mode activation
2. Ensuring MIDI hook materialization
3. Connecting pack coherence to manifest persistence
4. Raising coherence scores above 6.5

**Do not declare Sprint v0.1.17 complete until a session is generated with:**
- `coherence_score >= 6.5`
- `pack_coherence.music >= 0.65`
- `pack_coherence.overall >= 0.50`
- `mandatory_midi_hook.materialized == true`
- `generation_mode == "library-first-hybrid"`

---

**Report Generated:** 2026-04-01  
**Session Analyzed:** 0de71b5cf9c7, f4ae30771df5, e3c3691cc922
