Individual skill

mcp-builder

Use when asked to create an MCP server to integrate an API or service in Python or TypeScript. Not for remote, credential, publish, deploy, or irreversible changes.

.devin/skills/mcp-builder/SKILL.md

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# MCP builder

## Contract

| Field | Bound contract |
|---|---|
| Trigger | Creating an MCP server to integrate an API or service in Python or TypeScript. |
| Authority | Reversible local: writes only named project files; rollback is deleting the project directory. No remote mutation. |
| Side effect | A new MCP server project with typed tools, tests, and a read-only evaluation suite. |
| Done | Server builds, registers tools with correct Zod/Pydantic schemas and annotations, passes MCP inspector, and has 16 stable read-only evaluations with verified answers. |

## Inputs

- API or service specification (required): endpoint list, auth method, request/response shapes, or OpenAPI/GraphQL schema describing the service to integrate.