alterlab-link-health

90 / 100 · Low risk

Fine to try. Some of what it can do is expected: a security skill usually runs scanners and checks websites.

By roohe/agentic-super-skills (GitHub) · security · 10 stars · scanned at commit f483e54

Part of the AlterLab Academic Skills suite. Meta-skill for auditing and repairing Markdown link health across a skills repo. Runs a four-tier pipeline (config hardening, intra-repo file-ref fixes, external URL substitutions, residual exclusions) and enforces a Tier 3 substitution guardrail that prevents regressions of previously-passing links. Designed for lychee-based GitHub Actions link checkers, but the methodology generalizes to markdown-link-check and similar tools. Triggers on: link audit…

Works with any agent that supports SKILL.md skills.

What this skill can do

Runs commands on your computer

The author does not mention this. Expected for a security skill.

Found in 1 place.

skills_library/alterlab-link-health/SKILL.md, line 89diff <(grep "^\[200\]" baseline.log | sort -u) \

Connects to the internet

The author does not mention this. Expected for a security skill.

Found in 4 places.

skills_library/alterlab-link-health/SKILL.md, line 1062. For HTTP URLs: `curl -sSI -L --max-time 15 '<new>'` — final status must be 200 (after redirects).
skills_library/alterlab-link-health/references/tier3-substitution.md, line 41| HTTP URL | `curl -sSI -L --max-time 15 '<new>'` — final status 200 after redirects |
skills_library/alterlab-link-health/references/tier3-substitution.md, line 1092. Batch-probe: loop over each `[new]` with `curl -sSI -L --max-time 15` or `gh api`. Emit a TSV of `old \t new \t status`.

Show 1 more

skills_library/alterlab-link-health/references/tier4-exclusions.md, line 91. **Is the URL dead?** (`curl -sSI` times out / resolves to 404 / 5xx with no redirect)

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'alterlab-link-health' ] || [ -L ~/.agents/skills/'alterlab-link-health' ]; then echo 'A skill folder named alterlab-link-health already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/roohe/agentic-super-skills' "$d" && git -C "$d" checkout --quiet 'f483e54f3ad5f202a77d45f2e57f8d970b71195f' -- 'skills_library/alterlab-link-health' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills_library/alterlab-link-health' ~/.agents/skills/'alterlab-link-health' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'alterlab-link-health' ~/.claude/skills/'alterlab-link-health' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-08	`f483e54`	90