rowboat/CLAUDE.md

CLAUDE.md - AI Coding Agent Context

This file provides context for AI coding agents working on the Rowboat monorepo.

Quick Reference Commands

# Electron App (apps/x)
cd apps/x && pnpm install          # Install dependencies
cd apps/x && npm run deps          # Build workspace packages (shared → core → preload)
cd apps/x && npm run dev           # Development mode (builds deps, runs app)
cd apps/x && npm run lint          # Lint check
cd apps/x/apps/main && npm run package   # Production build (.app)
cd apps/x/apps/main && npm run make      # Create DMG distributable

Monorepo Structure

rowboat/
├── apps/
│   ├── x/                 # Electron desktop app (focus of this doc)
│   ├── rowboat/           # Next.js web dashboard
│   ├── rowboatx/          # Next.js frontend
│   ├── cli/               # CLI tool
│   ├── python-sdk/        # Python SDK
│   └── docs/              # Documentation site
├── CLAUDE.md              # This file
└── README.md              # User-facing readme

Electron App Architecture (apps/x)

The Electron app is a nested pnpm workspace with its own package management.

apps/x/
├── package.json           # Workspace root, dev scripts
├── pnpm-workspace.yaml    # Defines workspace packages
├── pnpm-lock.yaml         # Lockfile
├── apps/
│   ├── main/              # Electron main process
│   │   ├── src/           # Main process source
│   │   ├── forge.config.cjs   # Electron Forge config
│   │   └── bundle.mjs     # esbuild bundler
│   ├── renderer/          # React UI (Vite)
│   │   ├── src/           # React components
│   │   └── vite.config.ts
│   └── preload/           # Electron preload scripts
│       └── src/
└── packages/
    ├── shared/            # @x/shared - Types, utilities, validators
    └── core/              # @x/core - Business logic, AI, OAuth, MCP

Build Order (Dependencies)

shared (no deps)
   ↓
core (depends on shared)
   ↓
preload (depends on shared)
   ↓
renderer (depends on shared)
main (depends on shared, core)

The npm run deps command builds: shared → core → preload

Key Entry Points

Component	Entry	Output
main	apps/main/src/main.ts	.package/dist/main.cjs
renderer	apps/renderer/src/main.tsx	apps/renderer/dist/
preload	apps/preload/src/preload.ts	apps/preload/dist/preload.js

Build System

• Package manager: pnpm (required for workspace:* protocol)
• Main bundler: esbuild (bundles to single CommonJS file)
• Renderer bundler: Vite
• Packaging: Electron Forge
• TypeScript: ES2022 target

Why esbuild bundling?

pnpm uses symlinks for workspace packages. Electron Forge's dependency walker can't follow these symlinks. esbuild bundles everything into a single file, eliminating the need for node_modules in the packaged app.

Key Files Reference

Purpose	File
Electron main entry	apps/x/apps/main/src/main.ts
React app entry	apps/x/apps/renderer/src/main.tsx
Forge config (packaging)	apps/x/apps/main/forge.config.cjs
Main process bundler	apps/x/apps/main/bundle.mjs
Vite config	apps/x/apps/renderer/vite.config.ts
Shared types	apps/x/packages/shared/src/
Core business logic	apps/x/packages/core/src/
Workspace config	apps/x/pnpm-workspace.yaml
Root scripts	apps/x/package.json

Common Tasks

LLM configuration (single provider)

• Config file: ~/.rowboat/config/models.json
• Schema: { provider: { flavor, apiKey?, baseURL?, headers? }, model: string }
• Models catalog cache: ~/.rowboat/config/models.dev.json (OpenAI/Anthropic/Google only)

Add a new shared type

1. Edit apps/x/packages/shared/src/
2. Run cd apps/x && npm run deps to rebuild

Modify main process

1. Edit apps/x/apps/main/src/
2. Restart dev server (main doesn't hot-reload)

Modify renderer (React UI)

1. Edit apps/x/apps/renderer/src/
2. Changes hot-reload automatically in dev mode

Add a new dependency to main

1. cd apps/x/apps/main && pnpm add <package>
2. Import in source - esbuild will bundle it

Verify compilation

cd apps/x && npm run deps && npm run lint

Tech Stack

Layer	Technology
Desktop	Electron 39.x
UI	React 19, Vite 7
Styling	TailwindCSS, Radix UI
State	React hooks
AI	Vercel AI SDK, OpenAI/Anthropic/Google/OpenRouter providers, Vercel AI Gateway, Ollama, models.dev catalog
IPC	Electron contextBridge
Build	TypeScript 5.9, esbuild, Electron Forge

Environment Variables (for packaging)

For production builds with code signing:

• APPLE_ID - Apple Developer ID
• APPLE_PASSWORD - App-specific password
• APPLE_TEAM_ID - Team ID

Not required for local development.