Agent Skills

You can install a reusable Mock Server skill for coding agents with the skills CLI.

Install the Mock Server skill

Install directly from GitHub:

npx skills add scalar/scalar --skill mock-server

Install to specific agents

Example for Cursor and Codex:

npx skills add scalar/scalar \
  --skill mock-server \
  --agent cursor \
  --agent codex

Install alongside Scalar Docs

If you also manage scalar.config.json, install both skills:

npx skills add scalar/scalar --skill scalar-docs
npx skills add scalar/scalar --skill mock-server

Install globally

To make the skill available across projects:

npx skills add scalar/scalar --skill mock-server --global

Use Scalar Docs as an MCP

Use https://scalar.com/mcp to add Scalar Documentation as an MCP server for your agent.

What this skill covers

The mock-server skill includes guidance for:

• Setting up createMockServer() with document and onRequest
• Using x-handler for dynamic request handling
• Using x-seed for startup data seeding
• Working with authentication in OpenAPI operations
• Running and troubleshooting @scalar/mock-server with Docker