# Eval Harness

Define and run evaluations for AI coding workflows\.

Canonical: https://claudelist.com/listings/skill-affaan-m-ecc-eval-harness

Category: Skills

Source: community · affaan\-m

Source checked: 2026-10-14

Website: https://github.com/affaan-m/ecc/tree/main/skills/eval-harness

Define and run evaluations for AI coding workflows. The upstream SKILL.md and its supporting files are maintained in affaan-m/ecc.

## Install or set up

1. Read eval-harness’s SKILL.md and check its prerequisites at the source.
2. In your Claude Code project, run the command below to install this individual skill in project scope. Add `-g` if you want it in your personal scope.
3. Restart Claude Code and invoke `/eval-harness` or ask Claude to use the skill. If it is unavailable, check `.claude/skills/` and the upstream setup notes.

```sh
npx skills add https://github.com/affaan-m/ecc/tree/main/skills/eval-harness --agent claude-code
```

Installation guide: https://www.skills.sh/affaan-m/ecc/eval-harness