---
phase: 06-english-linguistic-engine
verified: 2026-04-10T22:30:00Z
status: passed
score: 5/5 must-haves verified
re_verification: false
---

# Phase 6: English Linguistic Engine — Verification Report

**Phase Goal:** The system can verify English lyrics for syllable accuracy and rhyme quality using English-specific rules.
**Verified:** 2026-04-10T22:30:00Z
**Status:** PASSED
**Re-verification:** No — initial verification

## Goal Achievement

### Observable Truths

| # | Truth | Status | Evidence |
|---|-------|--------|----------|
| 1 | System counts syllables per line in English lyrics with awareness of stress patterns and common exceptions | VERIFIED | `syllables.md` 317 lines, status: complete. 6-step procedure with stress analysis as mandatory Steps 3-4. -ed decision table, contraction table (28 entries), ambiguous-word table (32 entries with IPA in lent/rapide columns), 5 validation tests with known answers. |
| 2 | System identifies and evaluates rhyme quality in English lyrics (perfect rhyme, near rhyme, slant rhyme) | VERIFIED | `rhymes.md` 363 lines, status: complete. 6-step IPA-first procedure with REGLE FONDAMENTALE anti-orthographic warning. Type-based classification (perfect/slant/near/eye/internal). Orthographic traps (17 + 13 + 5 pairs), pre-classified table (30 pairs), suggestion workflow (5 steps, 2 worked examples). |

**Score: 2/2 truths verified**

### Required Artifacts

| Artifact | Expected | Status | Details |
|----------|----------|--------|---------|
| `reference/linguistic/english/syllables.md` | Complete English syllable counting reference with verification procedure, ambiguous-word table, heteronym notes, validation tests. min_lines: 250 | VERIFIED | 317 lines, status: complete in frontmatter. Contains: Procedure de Verification des Syllabes Anglaises (6 steps), Table de Mots Ambigus (32 entries), Table de Contractions (28 entries), Terminaisons -ed (3-way decision table with IPA), Heteronymes (14 entries), Tests de Validation (5 tests). 38 SI/ALORS occurrences, 60 IPA notation instances. |
| `reference/linguistic/english/rhymes.md` | Complete English rhyme classification with IPA-first procedure, orthographic traps, pre-classified table, suggestion workflow. min_lines: 250 | VERIFIED | 363 lines, status: complete in frontmatter. Contains: Procedure de Verification des Rimes Anglaises (6 steps), REGLE FONDAMENTALE anti-orthographic warning, Pieges Orthographiques (35 pairs across 3 categories), Table de Rimes Frequentes Pre-Classifiees (30 pairs), Workflow de Suggestion pour Rimes Faibles (5 steps, 2 worked examples). 20 SI/ALORS occurrences, 116 IPA notation instances. |

### Key Link Verification

| From | To | Via | Status | Details |
|------|----|-----|--------|---------|
| `reference/linguistic/english/syllables.md` | `reference/linguistic/english/rhymes.md` | Cross-reference link | WIRED | Line 317: "Voir [`rhymes.md`](rhymes.md) pour les regles de rimes, la classification par type (perfect/slant/near), et la procedure de verification phonetique IPA." |
| `reference/linguistic/english/rhymes.md` | `reference/linguistic/english/syllables.md` | Cross-reference link | WIRED | Line 363: "Voir [`syllables.md`](syllables.md) pour les regles de comptage de syllabes et l'alignement stress/temps forts." |
| `reference/linguistic/english/syllables.md` | `.claude/skills/create-track` | Referenced during track verification step | NOT_WIRED (by design) | The create-track Step 3 contains a placeholder: "La verification linguistique complete (comptage syllabes, analyse rimes) sera disponible dans une phase future." Integration into the track workflow is explicitly scoped to Phase 7 (ROADMAP.md: "Phase 7 integrates verification into the track workflow"). This is not a gap for Phase 6. |

### Requirements Coverage

| Requirement | Status | Notes |
|-------------|--------|-------|
| LING-03: System counts syllables per line with English-specific rules (stress patterns) | SATISFIED | syllables.md provides a complete, formalized 6-step procedure with mandatory stress analysis (Steps 3-4), -ed rules, contraction table, ambiguous-word table, heteronym notes, and 5 validation tests. |

**Note on scope:** LING-01 (rhyme verification in the production workflow) is assigned to Phase 7, not Phase 6. Phase 6 delivers the reference engine (the knowledge base); Phase 7 wires it into the track production pipeline. The Phase 6 goal as stated in ROADMAP.md — "The system can verify English lyrics for syllable accuracy and rhyme quality using English-specific rules" — is satisfied by the reference files themselves, which Claude consults during verification. The "phase future" placeholder in create-track Step 3 is intentional scaffolding awaiting Phase 7.

### Anti-Patterns Found

| File | Line | Pattern | Severity | Impact |
|------|------|---------|----------|--------|
| — | — | — | — | No placeholder text, no TODO/FIXME, no stub implementations found in either reference file. The "Phase 6 ajoutera..." and "Phase 6 completera..." placeholders mentioned in the plans were correctly removed. |

### Human Verification Required

None — all must-haves are verifiable programmatically via file inspection.

### Gaps Summary

No gaps. Both reference files are substantive, complete, and cross-referenced. The key link from the reference files to `.claude/skills/create-track` is intentionally deferred to Phase 7 per ROADMAP.md architecture. Phase 6 goal is fully achieved.

---

_Verified: 2026-04-10T22:30:00Z_
_Verifier: Claude (gsd-verifier)_
