# R03 Validation Report

> Generated by R-03. Proves data integrity of the verified edge set.

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## Summary

| Check | Result | Count |
|---|---|---|
| Duplicate edges | ✅ PASS | 0 |
| Self-reference edges | ✅ PASS | 0 |
| Missing source (unknown node) | ✅ PASS | 0 |
| Missing target (unknown node) | ✅ PASS | 0 |
| 100% evidence coverage | ✅ PASS | All 67 edges have evidence text |
| Valid edge types only | ✅ PASS | Only RELATED_TO, REQUIRES, SUPPORTS used |

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## Node Registry Integrity

- Total nodes registered: **150**
- All node IDs are unique: ✅
- All node file paths follow pattern `skills/{category}/{slug}.md`: ✅

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## Edge Integrity

- Total valid edges: **67**
- Every edge has a non-empty `evidence` field: ✅
- Every edge source exists in node registry: ✅
- Every edge target exists in node registry: ✅
- Every edge has a `source_file` traceable to a real repository path: ✅

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## Coverage Completeness Warning

**This is R03_PARTIAL coverage, not full graph coverage.**

R-03 successfully read and extracted edges from:
- `skills/02-reasoning/` — 27 out of ~40 files read with Related Skills extracted

Files **not read** in this session (due to tool call limits):
- All of `skills/03-memory/` skill files (16 nodes)
- All of `skills/05-code/` skill files (26 nodes)
- All of `skills/07-tool-use/` skill files (31 nodes)
- All of `skills/09-agentic-patterns/` skill files (19 nodes)
- All of `skills/12-data/` skill files (18 nodes)
- Remaining `skills/02-reasoning/` stubs (constraint-satisfaction, argument-structure-analysis, etc.)

**Impact:** 112 of 150 nodes are isolated — not because they have no edges in reality,
but because their files were not read. These are coverage gaps, not graph errors.

**Recommended next step:** R-04 — Full Coverage Edge Extraction.

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## Audit Trail

All edges traceable to:
- Source file: `skills/02-reasoning/{slug}.md`
- Evidence text: exact text from the Related Skills section of that file
- Full evidence registry: `meta/R03_EDGE_EVIDENCE.md`
