# Install iOS Simulator in Google Antigravity

Source: https://github.com/conorluddy/ios-simulator-skill/tree/main/ios-simulator-skill/skills/ios-simulator-skill
Listing: https://www.antigravityskills.org/skill/ios-simulator
Safety review (2026-10-21): Local-only Python scripts that wrap xcodebuild, simctl and idb, with no network code found, but some can delete or erase simulators (gated by --yes).

## Rules for the agent
- Before running anything, tell the user what you will download and whether it contains scripts, and ask them to confirm.
- Install into this project (.agents/skills/) unless the user asks for a global install (~/.gemini/config/skills/).
- Do not run other commands from the source repository unless the user asks.

## Steps
1. Clone the repository

```bash
git clone --depth 1 https://github.com/conorluddy/ios-simulator-skill.git /tmp/ios-simulator-skill-src
```

   Download the official repository to a temporary folder.
2. Copy into your workspace

```bash
mkdir -p .agents/skills && cp -R /tmp/ios-simulator-skill-src/ios-simulator-skill/skills/ios-simulator-skill .agents/skills/ios-simulator-skill
```

   Run this from your project root. Antigravity reads workspace skills from <project>/.agents/skills/<folder>/. The README's own manual-install table lists .agents/skills/ for another agent; it is the same folder layout, with SKILL.md at the top of the skill folder.
3. Or install globally

```bash
mkdir -p ~/.gemini/config/skills && cp -R /tmp/ios-simulator-skill-src/ios-simulator-skill/skills/ios-simulator-skill ~/.gemini/config/skills/ios-simulator-skill
```

   Use this instead of the previous step to make the skill available in every project.
4. Install the prerequisites

```bash
brew install facebook/fb/idb
```

   From the README: installs idb-cli and idb-companion. You also need Xcode 26+ selected with xcode-select and Python 3.12+. Then run bash .agents/skills/ios-simulator-skill/scripts/sim_health_check.sh to check everything at once.
5. Check that Antigravity sees it
   Ask "What skills do you have?" (Antigravity 2.0 app has no /skills command). Antigravity CLI: run /skills; in a session that was already open, run /skills reload first. The skill should be listed by name.

Note: The README does not mention Antigravity (it documents Claude Code and Codex), so this is a manual copy. The skill folder is nested three levels deep in the repo; copy ios-simulator-skill/skills/ios-simulator-skill, not the repo root, or SKILL.md ends up too deep and will not load. We did not run it.

Done when the skill is listed: in the Antigravity 2.0 app ask "What skills do you have?" in a new conversation (the app has no /skills command); in the Antigravity CLI run /skills (run /skills reload first in a session that was already open).