# Install Everything Claude Code (ECC) in Google Antigravity

Source: https://github.com/affaan-m/everything-claude-code
Listing: https://www.antigravityskills.org/skill/everything-claude-code
Safety review (2026-10-15): Mostly Markdown; Antigravity install adds no hooks. Claude Code hooks run Node scripts; some skills include scripts.

## 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. Check Node.js (18 or newer)

```bash
node --version
```

   The README requires Node.js 18 or newer for the universal package.
2. See what would be installed first

```bash
npx ecc-universal@2.2.3 install --profile minimal --target antigravity --dry-run
```

   Run from the project you want to configure. docs/ANTIGRAVITY-GUIDE.md uses ecc-universal@2.2.0 or newer for the native layout; we reviewed repository version 2.2.3 (VERSION file). scripts/install-apply.js documents a --dry-run flag in its usage text; use it to see the plan before anything is written.
3. Install the minimal profile for Antigravity

```bash
npx ecc-universal@2.2.3 install --profile minimal --target antigravity
```

   Writes into .agents/ in the current project: rules/, workflows/ (from commands), skills/, agents/ and ecc-install-state.json. This is the project-local layout; the guide also has a source-checkout alternative with ./install.sh --profile minimal --target antigravity.
4. Start a new conversation and verify

```bash
rg --files .agents/skills -g 'SKILL.md'
```

   In Antigravity open Settings > Customizations, confirm the workspace skills appear, start a new conversation and ask for one by exact name (for example tdd-workflow). The guide also lists node scripts/doctor.js --target antigravity from a source checkout.

Note: Steps follow docs/ANTIGRAVITY-GUIDE.md and the README at b92f181; we have not run the installer or tested it in Antigravity. To remove it later use the uninstall script described in the README's Reset / Uninstall section.

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).