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add-harness-package

82 / 100 · Low risk

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

By vercel/ai (GitHub) · coding · 27,911 stars · scanned at commit 8bc7652

Guide for adding new AI SDK harness packages. Use when creating a new @ai-sdk/harness-<name> package that adapts a coding-agent runtime to HarnessV1.

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-package' ] || [ -L ~/.agents/skills/'add-harness-package' ]; then echo 'A skill folder named add-harness-package already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/vercel/ai' "$d" && git -C "$d" checkout --quiet '8bc7652cdb13fc84722666eb93f45acd0d131eee' -- 'skills/add-harness-package' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/add-harness-package' ~/.agents/skills/'add-harness-package' && 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-package' ~/.claude/skills/'add-harness-package' (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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