# Coucou — guide for AI coding agents

Coucou is a native macOS app (`NotchBuddy/`); `windows/` is the Tauri version for Windows and Linux. Mochi, a small animated character living in the MacBook notch, shows AI coding agent sessions (Claude Code, Gemini CLI, Antigravity and more) and a few integrations, and lets the user approve, answer, chat and drop files from the notch.

## Where things are
- `NotchBuddy/Sources/App/` — Mac-only Swift code. `NotchBuddy/Sources/CoucouKit/` — code shared with the iPhone app (Mochi's BotEngine and outfits, pills, diff, models). `NotchBuddy/Sources/Phone/` — iPhone app (`CoucouPhone` target), with its widgets in `Sources/Widgets/` and the expanded approval notification in `Sources/NotificationContent/`. `NotchBuddy/Resources/sounds/` — the 28 WAV sounds. `NotchBuddy/project.yml` — XcodeGen project (never edit the `.xcodeproj` by hand).
- `NotchBuddy/Sources/CoucouKit/PillCatalog.swift` — single source of truth for all declared pills (workspace tools, agents, AI providers, services). Every pill ID, color, category and subtitle lives here.
- `docs/SPEC.md`, `docs/INTEGRATIONS.md` — behaviour, views, states, integrations (in French).
- `design/prototype/notch-buddy.html` — original prototype, the visual source of truth. `design/captures/` — target screenshots.
- `windows/` — the Tauri app for Windows and Linux: Rust in `src-tauri/`, TypeScript in `src/`, the `coucou-hook` relay in `hook/`. `windows/README.md` lists what differs from the Mac.
- `docs/*.html` — the GitHub Pages site (privacy, terms, support, legal notice).
- `relay/` — the Coucou relay, a stateless Cloudflare Worker that forwards the iPhone Live Activity pushes (it holds the APNs key, which must never ship in an app). See `relay/README.md`.

## Build
```
cd NotchBuddy && xcodegen && xcodebuild -scheme NotchBuddy -configuration Debug build
```
Windows and Linux: `cd windows && npm install && npm run tauri dev`

## Rules
- Swift 6, SwiftUI + AppKit. No third-party dependencies unless truly unavoidable. The character is drawn in code (`Canvas` + `TimelineView`), no Rive/Lottie/images.
- Secrets live in the Keychain, never on disk or in git.
- No telemetry. Network calls only to services the user configured.
- Never block Claude Code: if the app doesn't answer, the hook exits immediately.
- Never overwrite `~/.claude/settings.json`: dated backup, merge, show the diff, write only after the user confirms.
- Never send an email or approve a Claude Code or Codex permission without an explicit click.
- Performance: 0 % CPU when the island is hidden.
- Keep the bundle identifier `fr.louisraille.NotchBuddy` (Keychain items, preferences and permissions depend on it).
- Never restyle what already ships (pills, cards, Settings, chat…): existing views stay exactly as they are in `main`, which is the App Store build. Change the look of an existing view only when explicitly asked.
- Pill IDs are stable contract values (Keychain, UserDefaults, hook routing): never rename an existing pill ID.
- New views follow the existing app style. `design/prototype/notch-buddy.html` and `design/captures/` are references for new work, not a reason to change existing views.
- Every release adds its CHANGELOG.md section, a row in the README Versions table, and commits the regenerated Info.plist with the new version.