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openchamber/.agents/skills/serve-sim/SKILL.md
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Bohdan Triapitsyn 7331ee626e feat: add one-command mobile simulator dev loop
Adds `mobile:sim:dev` / `sim:dev` to build, install, launch, and stream the iOS simulator in one command
Updates mobile docs and serve-sim guidance with the new workflow and correct preview URL behavior
Bumps `serve-sim` to a newer version
2026-07-28 23:34:06 +03:00

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3.0 KiB
Markdown

---
name: serve-sim
description: Use when working with the OpenChamber iOS Simulator app without opening Xcode - boot/install/launch the Capacitor iOS app, start a browser stream, tap/type/gesture/rotate, inspect accessibility, or hand a simulator URL to the user.
---
# serve-sim
Use `serve-sim` to stream and control a booted Apple Simulator from the terminal. It captures the simulator framebuffer, serves a browser preview, and exposes CLI controls for taps, typing, gestures, hardware buttons, rotation, memory warnings, permissions, camera injection, and accessibility inspection.
## OpenChamber Defaults
- Mobile package: `packages/mobile`
- iOS bundle id: `com.openchamber.app`
- Headless env wrapper: `packages/mobile/scripts/with-mobile-env.mjs`
- iOS simulator helper: `packages/mobile/scripts/ios-sim.mjs`
- Preferred scripts:
- `bun run mobile:build:ios:simulator`
- `bun run mobile:sim:run`
- `bun run mobile:sim:serve`
- `bun run mobile:sim:list`
- `bun run mobile:sim:kill`
- `bun run mobile:sim:dev` — foreground build + run + stream in one command (`--no-build` to skip the build); intended for the user, agents should prefer the discrete scripts above
## Workflow
1. Build the simulator app without opening Xcode:
```sh
bun run mobile:build:ios:simulator
```
2. Boot a simulator if needed, install, and launch the app:
```sh
bun run mobile:sim:run
```
3. Start the browser stream in detached JSON mode:
```sh
bun run mobile:sim:serve
```
Surface the returned `url` to the user. It normally starts at `http://127.0.0.1:3100`; always use the `url` from the JSON output rather than assuming the port.
4. Stop helpers when finished unless the user asks to keep them running:
```sh
bun run mobile:sim:kill
```
## Direct CLI Controls
- Tap normalized coordinates: `bunx serve-sim tap 0.5 0.5`
- Type focused text: `bunx serve-sim type "hello"`
- Hardware home: `bunx serve-sim button home`
- Rotate: `bunx serve-sim rotate portrait`
- List streams: `bunx serve-sim --list -q`
- Accessibility tree: `curl http://localhost:3100/ax`
Run direct CLI commands from `packages/mobile` (the binary lives in that package; plain `serve-sim` inside `with-mobile-env.mjs` from elsewhere fails with command not found).
Coordinates are normalized `0..1`, not pixels. Prefer `tap` for simple taps; do not emulate taps using separate `gesture` begin/end commands because that can register as long press.
## Preconditions
- macOS host.
- Xcode installed; use `DEVELOPER_DIR=/Applications/Xcode.app/Contents/Developer` if `xcode-select` points at CommandLineTools.
- Node 18+.
- At least one simulator can be booted with `xcrun simctl`.
## Anti-Patterns
- Do not open Xcode just to build/install/launch during agent work; use the scripts above.
- Do not parse human output from `serve-sim`; use `-q` for JSON.
- Do not leave helper streams running unintentionally.
- Do not guess coordinates after accessibility lookup fails; report the missing target instead.