Delegate workflow installation to the skills CLI

Replace per-tool distribution generation with a canonical committed skills build so installation and updates share one format.

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

skills/plan2code-init-update/references/ai-agent-file-sync.md

@@ -0,0 +1,79 @@
+# Step 7 — AI Agent File Sync
+
+Check for other AI agent config files and offer to replace them with AGENTS.md
+references, so AGENTS.md stays the single source of truth.
+
+## Files to Detect
+
+| File | Reference Path |
+|------|----------------|
+| `CLAUDE.md` (root) | `./AGENTS.md` |
+| `GEMINI.md` (root) | `./AGENTS.md` |
+| `.cursorrules` (root) | `./AGENTS.md` |
+| `.github/copilot-instructions.md` | `../AGENTS.md` |
+| `.cursor/rules/*.md` | `../../AGENTS.md` |
+| `.windsurf/rules/*.md` | `../../AGENTS.md` |
+
+**No files found:** Skip silently, end workflow.
+
+## If Files Found
+
+```
+    +---+
+    | o |
+    | ~ |   Found other AI agent configs!
+    +---+
+```
+
+> Found AI config files that could reference AGENTS.md:
+>
+> | File | Size |
+> |------|------|
+> | `CLAUDE.md` | 45 lines |
+>
+> Replace with AGENTS.md references?
+> - **Yes** - Update all
+> - **Select** - Choose specific (numbered list)
+> - **No** - Keep as-is
+
+**Warning** for files >10 lines: "[file] has custom content that will be replaced."
+
+## CLAUDE.md Template
+
+CLAUDE.md gets a special template because Claude Code auto-loads it — the `CRITICAL — MANDATORY FIRST STEP` directive ensures AGENTS.md is always read:
+
+```markdown
+# CLAUDE.md
+
+**CRITICAL — MANDATORY FIRST STEP: You MUST read [AGENTS.md](./AGENTS.md) before responding to ANY user message, including simple questions. Do NOT skip this step regardless of how trivial the request appears. No exceptions.**
+
+See AGENTS.md for complete project documentation including:
+- Development commands and setup
+- Architecture overview
+- Environment variables
+- Testing patterns
+- Deployment guides
+- Keeping this file current / Failure log
+- Section details in .agents-docs/
+
+This file exists for Claude Code auto-loading. All AI coding agents should reference AGENTS.md.
+```
+
+## Reference Template (all other files)
+
+Use title and path from the detection table:
+
+```markdown
+# [Title]
+
+See [AGENTS.md]([Path]) for complete project documentation including:
+- Development commands and setup
+- Architecture overview
+- Environment variables
+- Testing patterns
+- Deployment guides
+- Keeping this file current / Failure log
+- Section details in .agents-docs/
+```
+
+**For directory configs** (`.cursor/rules/`, `.windsurf/rules/`): Delete existing `.md` files, create single `reference.md`.