# INITIATIVE-012C — Explorer Productization — Acceptance Report

**Status:** COMPLETE  
**Date:** 2026-06-23  
**Owner:** Graph Architect

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## Phase Summary

| Phase | Description | Status |
|-------|-------------|--------|
| 1 | Forensic audit of existing Explorer files | ✅ |
| 2 | Category label normalization + sandbox hidden | ✅ |
| 3 | Dependency index: prereqs, required_by, related | ✅ |
| 4 | All dependency entries fully clickable | ✅ |
| 5 | AI Engineering OS hero section with live stat counters | ✅ |
| 6 | Graph health panel (coverage%, isolated, density, top node) | ✅ |
| 7 | Empty-state messaging for each dependency section | ✅ |
| 8 | Acceptance verification | ✅ |

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## Success Criteria

- [x] `00-sandbox` category hidden from all UI surfaces
- [x] Human-readable category labels (`01-perception` → `Perception`, etc.)
- [x] Dependency navigation: all dep items are clickable buttons navigating to target skill
- [x] **Required By** section populated from reverse-index
- [x] Prerequisite / Requires / Related sections all populated
- [x] Hero section: Skills count, Edges count, Domains count, Requires edges count
- [x] Health panel: coverage %, isolated count, avg density, most-connected skill
- [x] Empty-state messages specific to each dependency section (never blank)
- [x] Dark/light mode toggle retained
- [x] `getGraphUrl()` path normalization from INITIATIVE-012B1 retained
- [x] Keyboard navigation: `/` focuses search, `Escape` dismisses
- [x] Mobile overlay for detail panel on narrow screens
- [x] Deep-link via URL hash (`#skill-id`) opens that skill on load
- [x] `skill-card-reqby` badge on list cards showing N required-by count

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## Root Cause (from INITIATIVE-012B1, retained)

Hardcoded relative path `../../data/SKILLS_GRAPH.json` resolves incorrectly on GitHub Pages. Fixed via `getGraphUrl()` environment detection (retained from previous initiative).

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## Files Changed

- `docs/explorer/index.html` — full productized layout with hero + health panel
- `docs/explorer/app.js` — dependency index, normalised categories, clickable deps, health stats
- `docs/explorer/styles.css` — full design system refresh for AI Engineering OS product feel
- `meta/PRODUCTIZATION_REPORT.md` — this file
