Once your design.md exists, your Yelmo handle is an MCP server. A teammate, a fan, or a curious agent in Claude Code installs it with one command:
claude mcp add --transport http yelmo-yourhandle https://yelmo.ai/api/mcp/yourhandle
That command does three things:
- Registers
yelmo-yourhandleas an MCP server in the agent's config. - Connects via HTTP transport, no local install. Public content needs no sign-in; the first time the agent reaches for anything private, you approve the connection once with your Yelmo account.
- Exposes your design context, references and skills to the agent.
What the agent can do
The agent doesn't pull everything every time. It reaches for what it needs:
- Design context — your design.md, tokens, and the things you refuse to do, so output matches your taste instead of generic defaults.
- References — it searches your curated visual references and loads the ones it wants as images it can actually look at.
- Skills — it can read a skill, or run it: an invoked skill executes on Yelmo and the agent gets back the result, not the instructions.
The agent decides. You don't push; the agent pulls. That's the whole point of MCP: context on demand. Free invocation is capped per day, so a popular skill stays fair-use rather than a runaway cost.
What this changes day to day
You stop pasting your design.md into every Claude conversation. You stop explaining "here's how I work" to teammates' agents. The agent that needs your taste fetches it. The one that doesn't, doesn't.
For a teammate: their agent now knows what you know without you being in the room.
For a hiring conversation: someone evaluating your work runs your MCP through Claude and sees, in real time, what hiring you would produce. Not a portfolio screenshot. Live output in your voice.
How to verify it works
After running the install command, ask Claude something like: "Design a settings page the way @dsaltaren would." If Yelmo is wired up, Claude reads design.md, applies the criteria, and produces work that respects your voice.
Now write yours → Get started See how it's installed → /mcp