# R-02E.2 — Canonical Node Resolution

**Mission:** R-02E.2  
**Status:** COMPLETE  
**Date:** 2026-06-22  
**Governance Mode:** MANDATORY — Repository is the ONLY source of truth

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## Pre-Flight Verification

| Metric | Expected | Observed | Result |
|---|---|---|---|
| RAW_NODES | 134 | 134 | ✅ PASS |
| UNIQUE_NODES | 133 | 133 | ✅ PASS |
| COLLISION_COUNT | 1 | 1 | ✅ PASS |

Pre-flight passed. Proceeding with resolution.

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## Collision Summary

**Node ID:** `skill:web-scraping`  
**Discovery Source:** R-02E.1 Collision Report (`meta/R02E_COLLISION_REPORT.md`)

| Field | Value |
|---|---|
| Collision ID | COL-001 |
| Node ID | `skill:web-scraping` |
| Path A (canonical) | `skills/04-action-execution/web-scraping.md` |
| Path B (excluded) | `skills/11-web/web-scraping.md` |
| Category A | `04-action-execution` |
| Category B | `11-web` |
| Severity | HIGH — cross-category slug collision |

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## Governance Decision Applied

**Decision ID:** D-R02E.2-001  
**Type:** Canonical Node Selection  
**Mechanism:** Exclude non-canonical path from graph registry; both files remain in repository unchanged.

### Canonical Node

- **Node ID:** `skill:web-scraping`  
- **Registered Path:** `skills/04-action-execution/web-scraping.md`  
- **Category:** `04-action-execution`  
- **Status:** ACTIVE in graph registry

### Excluded Node

- **Path:** `skills/11-web/web-scraping.md`  
- **Category:** `11-web`  
- **Repository File Status:** KEPT (not deleted, not renamed, not moved)  
- **Graph Registry Status:** EXCLUDED — does not generate a node ID  
- **Reason:** Slug collision with canonical `04-action-execution` registration

### Rationale

`04-action-execution` is the foundational action layer established in the original graph architecture. `web-scraping` as an *execution capability* semantically belongs there. The `11-web` file covers the same skill from a web-context perspective; its content may be referenced by the canonical node's description but cannot independently register a node ID under the current `skill:{slug}` rule without triggering a collision. Per PROJECT_CONSTITUTION, no schema migration or file renaming is permitted in this mission. Canonical exclusion is the minimum-disruption resolution.

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## Impact Analysis

| Area | Impact |
|---|---|
| Repository files | None — both files preserved |
| Schema version | None — no schema change |
| Node IDs | None — canonical ID unchanged |
| 11-web category | 17 discovered → 16 registered (1 excluded) |
| 12-data category | 18 registered (no impact) |
| 13-creative category | 14 registered (no impact) |
| Total active registry | 133 nodes (RAW 134 − EXCLUDED 1) |
| Post-resolution COLLISION_COUNT | 0 ✅ |

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## Post-Resolution Audit Results

| Audit | Result |
|---|---|
| Duplicate node ID audit | ✅ 0 duplicates |
| Duplicate path audit | ✅ 0 duplicates |
| Duplicate slug audit | ✅ 0 duplicates |
| Category overlap audit | ✅ No cross-category conflicts |
| Traceability audit | ✅ 133/133 nodes traceable to repository files |

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## Prohibited Actions Compliance

| Prohibited Action | Applied? |
|---|---|
| Rename files | ❌ No |
| Move files | ❌ No |
| Delete files | ❌ No |
| Edit skill content | ❌ No |
| Modify schema version | ❌ No |
| Create synthetic IDs | ❌ No |
| Create aliases | ❌ No |
