feat: ClaudeForge 2.1.0 — installable plugin with 150-line cap, forked audit skills, /sync --weekly, and AGENTS.md export (#26)

skill/claude-md-link-check/SKILL.md

@@ -0,0 +1,51 @@
+---
+name: claude-md-link-check
+description: Verify every @path chain import and every markdown link inside every CLAUDE.md in this project resolves to an existing file. Read-only — returns broken links with file:line refs, never edits.
+when_to_use: |
+  Use when the user asks "check my CLAUDE.md links", "are the @-imports still valid?",
+  "find broken cross-references", or as part of /sync-claude-md --weekly.
+argument-hint: "[path-glob]"
+context: fork
+agent: Explore
+allowed-tools:
+  - Read
+  - Glob
+  - Grep
+  - "Bash(find:*)"
+  - "Bash(test:*)"
+  - "Bash(ls:*)"
+disable-model-invocation: false
+---
+
+# CLAUDE.md Link Check (forked, read-only)
+
+Optional path-glob: `$ARGUMENTS` (default `.` — entire tree).
+
+Run these steps in order. Do not modify any file.
+
+1. **Inventory.** `find <root> -name "CLAUDE.md" -type f -not -path "*/.git/*" -not -path "*/node_modules/*"`. Also include `.claude/rules/*.md`. Record paths.
+2. **Extract candidates** from each file:
+   - **Chain imports** — lines matching `^@\S+`. The literal after `@` is a relative path.
+   - **Markdown links** — `[text](target)` where `target` is not an HTTP(S) URL, not `mailto:`, not a bare anchor `#section`.
+3. **Resolve each candidate** relative to the file containing it (use `Read` on the parent file to confirm position, then `test -e <resolved-path>` or `Glob`).
+   - For `@../CLAUDE.md` inside `skill/CLAUDE.md`, resolved path is `CLAUDE.md`.
+   - For `[Backend](backend/CLAUDE.md)` inside the root, resolved path is `backend/CLAUDE.md`.
+4. **Return** the report in this exact shape:
+
+```
+## Link Check
+
+Files inspected: <count>
+References checked: <chain_imports> @-imports, <md_links> markdown links
+
+### Broken
+- <file>:<line> — `<original-target>` → does not resolve (expected `<absolute-path>`)
+- ... (omit section if empty)
+
+### Clean
+<count> references resolved.
+```
+
+5. If everything resolves, return exactly `## Link Check\n\nAll <N> references resolved across <M> files.`. Do not pad.
+
+**Hard rule**: never invent a fix. Report the broken target verbatim. Repair is the user's call (or `/sync-claude-md`'s).