Certify

Skill raphaelchristi/harness-evolver/skills/certify

Automated harness evolution for AI agents. A Claude Code plugin that iteratively optimizes system prompts, routing, retrieval, and orchestration code using full-trace counterfactual diagnosis. Based on Meta-Harness (Lee et al., 2026).From the repository description

Install

npx -y skills add raphaelchristi/harness-evolver --skill certify

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

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Skills are one crate of 615,606. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.