paseo/CLAUDE.md

CLAUDE.md

Paseo is a mobile app for monitoring and controlling your local AI coding agents from anywhere. Your dev environment, in your pocket. Connects directly to your actual development environment — your code stays on your machine.

Supported agents: Claude Code, Codex, and OpenCode.

Repository map

This is an npm workspace monorepo:

• packages/server — Daemon: agent lifecycle, WebSocket API, MCP server
• packages/app — Mobile + web client (Expo)
• packages/cli — Docker-style CLI (paseo run/ls/logs/wait)
• packages/relay — E2E encrypted relay for remote access
• packages/desktop — Electron desktop wrapper
• packages/website — Marketing site (paseo.sh)

Documentation

Doc	What's in it
docs/architecture.md	System design, package layering, WebSocket protocol, agent lifecycle, data flow
docs/coding-standards.md	Type hygiene, error handling, state design, React patterns, file organization
docs/testing.md	TDD workflow, determinism, real dependencies over mocks, test organization
docs/development.md	Dev server, build sync gotchas, CLI reference, agent state, Playwright MCP
docs/release.md	Release playbook, draft releases, completion checklist
docs/custom-providers.md	Custom provider config: Z.AI, Alibaba/Qwen, ACP agents, profiles, custom binaries
docs/android.md	App variants, local/cloud builds, EAS workflows
docs/design.md	How to design features before implementation
SECURITY.md	Relay threat model, E2E encryption, DNS rebinding, agent auth

Quick start

npm run dev                          # Start daemon + Expo in Tmux
npm run cli -- ls -a -g              # List all agents
npm run cli -- daemon status         # Check daemon status
npm run typecheck                    # Always run after changes
npm run lint                         # Always run after changes
npm run format                       # Auto-format with Biome
npm run format:check                 # Check formatting without writing

See docs/development.md for full setup, build sync requirements, and debugging.

Critical rules

• NEVER restart the main Paseo daemon on port 6767 without permission — it manages all running agents. If you're an agent, restarting it kills your own process.
• NEVER assume a timeout means the service needs restarting — timeouts can be transient.
• NEVER add auth checks to tests — agent providers handle their own auth.
• NEVER run the full test suite locally. The test suites are heavy and will freeze the machine, especially if multiple agents run them in parallel. Rules:
  • Run only the specific test file you changed: npx vitest run <file> --bail=1
  • Never run npm run test for an entire workspace unless explicitly asked.
  • If you must run a broad suite, pipe output to a file and read it afterward: npx vitest run <file> --bail=1 > /tmp/test-output.txt 2>&1 then read the file.
  • Never re-run a test suite that another agent already ran and reported green — trust the result.
  • For full suite verification, push to CI and check GitHub Actions instead.
• Always run typecheck and lint after every change.
• Build workspace packages before diagnosing cross-package type errors. This repo consumes generated declarations across workspaces. If typecheck fails in a package that depends on another workspace (especially CLI depending on server/daemon types), rebuild the owning package first so dist declarations are current:
  • npm run build:daemon — rebuild highlight, relay, server, and CLI when daemon/server/CLI types may be stale.
  • Do not patch inferred callback parameters or add local duplicate types just to silence stale declaration errors.
• Run npm run format before committing. This repo uses Biome for formatting. Do not manually fix formatting — let the formatter handle it.
• Always use npm scripts for linting and formatting. Do not run tools directly with npx eslint, npx oxfmt, npx oxlint, or package-local binaries. For targeted checks, pass file paths through the npm script:
  • npm run lint -- packages/app/src/components/message.tsx
  • npm run format:files -- CLAUDE.md packages/app/src/components/message.tsx
• NEVER make breaking changes to WebSocket or message schemas. The primary compatibility path is old mobile app clients talking to newly updated daemons. Users update desktop and daemon first, then keep running the old app for a while. Every schema change MUST be backward-compatible for old clients against new daemons:
  • New fields: always .optional() with a sensible default or .transform() fallback.
  • Never change a field from optional to required.
  • Never remove a field — deprecate it (keep accepting it, stop sending it).
  • Never narrow a field's type (e.g. string → enum, nullable → non-null).
  • Test with: "does a 6-month-old client still parse this?" and "does a 6-month-old daemon still send something this client accepts?"

Platform gating

The app runs on iOS, Android, web (browser), and web (Electron desktop). Code is cross-platform by default. Gate only when you must. Import gates from @/constants/platform.

The four gates

Gate	Type	When to use
isWeb	constant	DOM APIs — document, window, <div>, addEventListener, ResizeObserver. This is the exception, not the default.
isNative	constant	Native-only APIs — Haptics, StatusBar.currentHeight, push tokens, camera/scanner, expo-av.
getIsElectron()	cached fn	Desktop wrapper features — file dialogs, titlebar drag region, daemon management, app updates, dock badges.
useIsCompactFormFactor()	hook	Layout decisions — sidebar overlay vs pinned, modal vs full screen, single-panel vs split. From @/constants/layout.

Decision matrix

I need to...	Use
Access DOM (document, window, <div>, addEventListener)	if (isWeb)
Use a native-only API (Haptics, push tokens, camera)	if (isNative)
Use an Electron bridge (file dialog, titlebar, updates)	if (getIsElectron())
Switch layout between phone and tablet/desktop	useIsCompactFormFactor()
Show something on hover, always-visible on native	isHovered || isNative || isCompact (hover only works on web)
Gate to iOS or Android specifically	Platform.OS === "ios" / Platform.OS === "android" (rare, keep inline)

Rules

• Default is cross-platform. Don't gate unless you have a specific reason.
• Prefer Metro file extensions over if statements. When a module has fundamentally different implementations per platform, use .web.ts / .native.ts file extensions instead of runtime if (isWeb) branches. Metro resolves the correct file at build time — the unused platform code is never bundled. Reserve if (isWeb) for small, inline checks (a single line or a few props). If you find yourself writing a large if (isWeb) { ... } else { ... } block, split into separate files instead.

  hooks/
    use-audio-recorder.web.ts    ← uses Web Audio API
    use-audio-recorder.native.ts ← uses expo-audio
  

  Import as @/hooks/use-audio-recorder — Metro picks the right file automatically.
• Use .electron.ts / .electron.tsx for Electron-only web modules. Electron is still the Metro web platform, but desktop dev/build sets PASEO_WEB_PLATFORM=electron, so Metro first looks for .electron.* files and falls back to normal .web.* files. Use this when the implementation depends on Electron-only behavior such as webviewTag, desktop preload APIs, or the Electron bridge. Keep plain browser web in .web.*, and keep native fallbacks in the base file or .native.*.

  components/
    browser-pane.electron.tsx ← Electron <webview> implementation
    browser-pane.web.tsx      ← plain web fallback
    browser-pane.tsx          ← native fallback
  

  Import as @/components/browser-pane — Electron desktop gets the .electron.tsx file, browser web gets .web.tsx, and native gets the native/base implementation.
• NEVER use raw DOM APIs without isWeb guard. DOM APIs crash native. Casting a RN ref to HTMLElement is a red flag — ensure the block is web-only.
• NEVER use onPointerEnter/onPointerLeave. They don't fire on native iOS.
• Hover only works on web. React Native's onHoverIn/onHoverOut on Pressable does NOT fire on native iOS/iPad — the underlying W3C pointer events are behind disabled experimental flags. For hover-to-show UI (kebab menus, action buttons), use isHovered || isNative || isCompact so the controls are always visible on native and hover-to-show on web.
• Don't use Platform.OS as a proxy for layout capabilities. Use breakpoints for layout decisions, not platform checks.
• Import isWeb/isNative from @/constants/platform. Never write const isWeb = Platform.OS === "web" locally.

Debugging

Find the complete daemon logs and traces in the $PASEO_HOME/daemon.log