Underwritten

Underwritten is a browser-first markdown editor with a companion MCP bridge. The web app owns the editor and workspace state. The published underwritten-mcp package lets external MCP clients connect to that live browser session through a local bridge process.

Apps

• apps/website: the Underwritten web app and PWA
• apps/mcp: the published underwritten-mcp package

The MCP package is documented in apps/mcp/README.md.

Development

Install dependencies:

vp install

Run the website:

vp run website#dev

Run the MCP bridge from source in another terminal:

vp dlx tsx apps/mcp/src/cli.ts

Validation

Run formatting, linting, and type checks:

vp check

Run unit tests:

vp test

Run end-to-end tests:

vp run test:e2e

Install Playwright browsers when needed:

vp run website#test:e2e:install

Build the monorepo:

vp run build -r

License

MIT