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eval-skills

100 / 100 · Low risk

Fine to try.

By dzhng/skills (GitHub) · coding · 1,507 stars · scanned at commit c363ed3

Eval and improve a skill against golden cases — run the target skill blind in a fresh, context-free subagent on each example input, grade the artifact against the expected outcome, and let the gaps drive the edits. Use when the user wants to test/eval/improve/harden a skill, says "this skill keeps producing X / keeps missing Y", or hands a skill plus example input→expected-output pairs. Pairs with [write-skills](../write-skills/SKILL.md) (the authoring principles every fix obeys).

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

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

if [ -e ~/.agents/skills/'eval-skills' ] || [ -L ~/.agents/skills/'eval-skills' ]; then echo 'A skill folder named eval-skills already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/dzhng/skills' "$d" && git -C "$d" checkout --quiet 'c363ed386ec75756d6cbd0a3d0d9e8d4427f3a5a' -- 'skills/authoring/eval-skills' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/authoring/eval-skills' ~/.agents/skills/'eval-skills' && 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/'eval-skills' ~/.claude/skills/'eval-skills' (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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