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add-harness

97 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By invertase/reeval (GitHub) · coding · 13 stars · scanned at commit 1b778a9

End-to-end recipe for adding a new agent harness (a CLI reeval drives in the sandbox) to reeval: the catalog entry, the adapter package, the image and pin, the contract row, the telemetry declarations, replay captures and the generated harness matrix, plus the telemetry traps every harness so far fell into. Use when wiring another coding-agent CLI into reeval.

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

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

if [ -e ~/.agents/skills/'add-harness' ] || [ -L ~/.agents/skills/'add-harness' ]; then echo 'A skill folder named add-harness already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/invertase/reeval' "$d" && git -C "$d" checkout --quiet '1b778a9c674f9869f4c761c1bc4a1362db3f3804' -- '.agents/skills/add-harness' && mkdir -p ~/.agents/skills && cp -R "$d"/'.agents/skills/add-harness' ~/.agents/skills/'add-harness' && 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/'add-harness' ~/.claude/skills/'add-harness' (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

Also found in

Identical copies of this skill exist at:

• reeval-ai/reeval/.agents/skills/add-harness