link-validation
Universal link validation using lychee for Claude Code sessions. Runs at session end to detect broken links and path policy violations.
SKILL.md
Full skill instructions
Link Validation Skill
Validates markdown links in your workspace using lychee.
What It Does
At session end (Stop hook), this skill:
- Discovers all markdown files in your workspace
- Runs lychee to check for broken links
- Lints paths for policy violations (absolute paths, excessive traversal)
- Outputs JSON results for programmatic consumption
Requirements
- lychee installed (
brew install lychee) - Python 3.11+ and uv
Output
Results are written to .link-check-results.md in your workspace:
# Link Check Results
**Correlation ID**: `01JEGQXV8KHTNF3YD8G7ZC9XYK`
## Lychee Link Validation
No broken links found.
## Path Policy Violations
No path violations found.
Path Policy Rules
| Rule | Severity | Description |
|---|---|---|
| NO_ABSOLUTE_PATHS | Error | Filesystem absolute paths not allowed |
| NO_PARENT_ESCAPES | Warning | Excessive ../ may escape repository |
| MARKETPLACE_RELATIVE | Warning | Plugins should use ./ relative paths |
Configuration
Override the default lychee config by placing .lycheerc.toml in your workspace root.
See config/lychee.toml for the default configuration.