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spec

80 / 100 · Low risk

Fine to try.

By corca-ai/charness (GitHub) · design · 11 stars · scanned at commit abdb77f

Use when a concept needs to become a living implementation contract. Refine ideation artifacts or existing design docs into the current build contract, decide what must be fixed now versus probed during implementation, define testable success criteria, and keep the contract synchronized as `impl` learns new facts.

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/'spec' ] || [ -L ~/.agents/skills/'spec' ]; then echo 'A skill folder named spec already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/corca-ai/charness' "$d" && git -C "$d" checkout --quiet 'abdb77fd876eb7700c9550b0c6fcd96ee10bee84' -- 'skills/public/spec' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/public/spec' ~/.agents/skills/'spec' && 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/'spec' ~/.claude/skills/'spec' (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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