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Link Validator
Validates markdown links in Claude Code skills for portability across installation locations.
The Problem
Skills with absolute repo paths break when installed elsewhere:
| Path Type | Example | Works When Installed? |
|---|
| Absolute repo | /skills/foo/SKILL.md | No - path doesn't exist |
| Relative | ./references/guide.md | Yes - always resolves |
| Relative parent | ../sibling/SKILL.md | Yes - always resolves |
When to Use This Skill
- Before distributing a skill/plugin
- After creating new markdown links in skills
- When CI reports link validation failures
- To audit existing skills for portability issues
TodoWrite Task Templates
Template A: Validate Single Skill
1. Identify skill path to validate
2. Run: uv run scripts/validate_links.py <skill-path>
3. Review violation report (if any)
4. For each violation, apply suggested fix
5. Re-run validator to confirm all fixed
Template B: Validate Plugin (Multiple Skills)
1. Identify plugin root directory
2. Run: uv run scripts/validate_links.py <plugin-path>
3. Review grouped violations by skill
4. Fix violations skill-by-skill
5. Re-validate entire plugin
Template C: Fix Violations
1. Read violation report output
2. Locate file and line number
3. Review suggested relative path
4. Apply fix using Edit tool
5. Re-run validator on file
Post-Change Checklist
After modifying this skill:
- Script remains in sync with latest patterns
- References updated if new patterns added
- Tested on real skill with violations
Quick Start
# Validate a single skill
uv run scripts/validate_links.py ~/.claude/skills/my-skill/
# Validate a plugin with multiple skills
uv run scripts/validate_links.py ~/.claude/plugins/my-plugin/
# Dry-run in current directory
uv run scripts/validate_links.py .
Exit Codes
| Code | Meaning |
|---|
| 0 | All links valid (relative paths) |
| 1 | Violations found (absolute repo paths) |
| 2 | Error (invalid path, no markdown files) |
What Gets Checked
Flagged as Violations:
/skills/foo/SKILL.md - Absolute repo path/docs/guide.md - Absolute repo path
Allowed (Pass):
./references/guide.md - Relative same directory../sibling/SKILL.md - Relative parenthttps://example.com - External URL#section - Anchor link
Reference Documentation
- Link Patterns Reference - Detailed pattern explanations and fix strategies
Troubleshooting
| Issue | Cause | Solution |
|---|
| Script not found | Path or plugin not installed | Verify plugin installed with claude plugin list |
| Exit code 2 | Invalid path or no .md files | Check target path exists and contains markdown |
| False positive on URL | Regex matched external link | URLs starting with http should be ignored |
| Anchor link flagged | Script treating # as path | Anchor links (#section) are allowed by design |
| Relative path still fails | Wrong relative direction | Use for same dir, for parent |
Weekly Installs
63
Repository
terrylica/cc-skills
GitHub Stars
25
First Seen
Jan 24, 2026
Security Audits
Gen Agent Trust HubPassSocketPassSnykPass
Installed on
opencode59
gemini-cli58
codex57
claude-code56
github-copilot56
cursor56
