add-harness-package
Guide for adding new AI SDK harness packages.
Skill by vercelOfficial
Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/vercel-add-harness-package
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
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About
Use cases: agent-building
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Permissions
What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.
- Tools
- No tools found
- Secrets
- None asked for
- Install scripts
- None found
Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/add-harness-package
What's inside
- Skill name
add-harness-package- Description
- 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.
- License
- NOASSERTION
- Metadata
- internal: true
- Instructions
- 236 lines in SKILL.md · view on GitHub
Files (2)
- SKILL.md
- harness-requirements.md · references/
The license isn't open source, so the instructions aren't shown here. Read SKILL.md on GitHub
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Signals
- Stars
- 27,492
- Forks
- 5,428
- Open issues
- 497
- Last commit (this folder)
- Oct 21, 2026 (7 days ago)
- Last release
- Oct 23, 2026 (4 days ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- NOASSERTION
- Repository
- github.com/vercel/ai
- Website
- ai-sdk.dev
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
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Cite this page
add-harness-package skill. Agent Mart. https://agentmart.dev/skills/vercel-add-harness-package (last updated 2026-10-24)