How do I install the Serve Sim skill?

Run npx skillmds@latest add openchamber/serve-sim in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Serve Sim safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: makes network calls. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Serve Sim?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Serve Sim free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Serve Sim?

openchamber (@openchamber) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Serve Sim by openchamber — Agent Skill

Name: Serve Sim
Rating: 4.666666666666667 (3 reviews)
Author: openchamber

Serve Sim

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.

openchamber Updated Sep 9, 2026

File contents

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.

Scripted Workflow

Run the discrete scripts from the repository root so each step has an observable completion boundary:

Build the simulator app:
```
bun run mobile:build:ios:simulator
```
Boot if needed, install, and launch:
```
bun run mobile:sim:run
```
Start the detached browser stream:
```
bun run mobile:sim:serve
```
Surface the returned JSON url; it is the only authoritative stream address.
Stop helpers when finished unless the user asks to keep them running:
```
bun run mobile:sim:kill
```

Completion means the app launched, the returned stream URL was surfaced, requested interactions were verified, and helpers were stopped or intentionally left running.

Manual 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.

Use the scripts above instead of opening Xcode for build/install/launch. Consume JSON output rather than parsing human output. If accessibility lookup cannot identify a target, report the missing target instead of guessing coordinates.

---name: serve-simdescription: 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. ## Scripted Workflow Run the discrete scripts from the repository root so each step has an observable completion boundary: 1. Build the simulator app: ```sh bun run mobile:build:ios:simulator ``` 2. Boot if needed, install, and launch: ```sh bun run mobile:sim:run ``` 3. Start the detached browser stream: ```sh bun run mobile:sim:serve ``` Surface the returned JSON `url`; it is the only authoritative stream address. 4. Stop helpers when finished unless the user asks to keep them running: ```sh bun run mobile:sim:kill ``` Completion means the app launched, the returned stream URL was surfaced, requested interactions were verified, and helpers were stopped or intentionally left running. ## Manual 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`. Use the scripts above instead of opening Xcode for build/install/launch. Consume JSON output rather than parsing human output. If accessibility lookup cannot identify a target, report the missing target instead of guessing coordinates.

Frequently asked questions