One setup.Every coding agent.

Keep your skills, MCP servers, agents, and rules together. Take them to the coding agents you already use.

Read the guide

Illustrative demoOriginal files stay until you remove them.

$etymon sync --harness claude,codex

Read the shared manifest

Use locked resource versions

Write native configuration

Keep authored source unchanged

Same context. Your choice of tools.

.agents/

etymon.toml

etymon.lock

etymon/

rules/

skills/

.agents/

etymon.toml

etymon.lock

etymon/

rules/

skills/

Your shared source

Native files for your tools

AGENTS.mdStanding instructions

.claude/rules/Separate Claude rules

.codex/config.tomlCodex configuration

Generate native files from the same shared setup for Claude and Codex.

Bring the whole setup.

Skills

Local skills and skills.sh. Supporting files come along.

etymon skills add vercel-labs/skills

MCP

Commands, HTTP, and SSE. Find servers in the MCP Registry.

etymon mcp find

Agents

Custom agents from your repo or a remote source.

etymon agents create

Rules

Project instructions, nested guidance, and scoped rules.

etymon rules create

Stop keeping
copies in sync.

Different tools. Different files. The same project.

Etymon gives your team one shared setup. Each contributor runs etymon sync for the tools they use.

See the quick start

CLAUDE.mdAGENTS.mdopencode.json.cursor/rules/.mcp.json

etymon.tomletymon.locketymon/

Manifest, locked versions,
and your authored source.

Bring your own tools.

Full support matrix

CLI or editor. Work with the setup you already have.

Claude CodeCodexGitHub Copilot CLIGitHub Copilot cloudVS Code LocalGemini CLIKiro CLI 3 / IDE 1PiOh My PiOpenCodeCursorAntigravity CLIRoo CodeClineKilo CodeContinueDevin Cascade / WindsurfAmpZed native agent

Support varies by tool and interface. Etymon flags anything a destination cannot preserve.

Your next repo.
Already portable.

Start fresh, or bring your existing configuration.

Prefer a global install? npm install -g etymon
Node.js 22 or later.

New repository

$ etymon init
$ etymon skills add vercel-labs/skills
$ etymon sync

Existing repository

$ etymon init
$ etymon convert claude
$ etymon sync