VAEN – Package and import portable AI coding-agent Harnesses

What it does

Package your AI coding harness into a portable .agent file, and share it across repos, teams, & the community without ever having to copy-paste instructions, skills, MCP config, or secrets. - sjhalani7/vaen

VAEN is a portable CLI for packaging and importing agentic coding setups. It takes an agent.yaml manifest, bundles instructions, skills, and project-scoped MCP declarations into an OCI-backed .agent archive, and imports that setup into another repository without transporting secrets. vaen validate -f agent.yaml vaen build -f agent.yaml -o team-setup.agent vaen inspect team-setup.agent vaen import team-setup.agent --client codex vaen doctor --client codex What VAEN Packages VAEN packages configuration and authoring files, not runtime environments. VAEN never packages credential values, .env files, private keys, OAuth state, or MCP server implementations. A zip file can move files, but it…from github.com

In the maker’s words, at launch

Hi HN, I built VAEN (an open source CLI) because I kept running into a boring problem with AI coding-agent workflows: the setup becomes useful, but then it is hard to move. A good, useful agentic harness consists of more than just instructions: skills, mcp servers and more. There should be a better way to share those…

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