extension-development

# Extension Development in Nimbalyst Nimbalyst provides MCP tools for building, installing, and hot-reloading extensions directly from within the running app. This enables rapid iteration on extension development without manually running build commands. The recommended in-app scaffold flow uses `File > New Extension Project`, `Developer > New Extension Project`, or the Extension Developer Kit's `/new-extension` command. Enable Extension Dev Tools in Settings > Advanced before using the build/install workflow. ## Available MCP Tools ### Build Extension ``` mcp__nimbalyst-extension-dev__extension_build ``` Runs `npm run build` (vite build) on an extension project. **Parameters:** - `path`: Absolute path to the extension project root (directory containing package.json and manifest.json) **Returns:** Build output including any errors or warnings. ### Install Extension ``` mcp__nimbalyst-extension-dev__extension_install ``` Installs a built extension into the running Nimbalyst instance. The extension must be built first. **Parameters:** - `path`: Absolute path to the extension project root **Returns:** Installation status and any validation warnings. ### Hot Reload Extension ``` mcp__nimbalyst-extension-dev__extension_reload ``` Rebuilds and reinstalls an extension in one step. This is the most common tool for iterating on extension development. **Parameters:** - `extensionId`: The extension ID from manifest.json (e.g., "com.nimbalyst.my-extension") - `path`: Absolute p...