Antigravity

Vendor: Antigravity Install name: antigravity Status: Preview Native config: ~/.gemini/GEMINI.md

Installation

apothem install --harness antigravity

The adapter renders the shared profile to ~/.gemini/GEMINI.md — Google Antigravity's user-global rules surface, the Markdown instruction file Antigravity writes when the operator adds a "Global" rule.

Files written: ~/.gemini/GEMINI.md

Shared surface with the gemini-cli adapter. ~/.gemini/GEMINI.md is also the gemini-cli adapter's target. This shared surface is intentional and benign: both adapters render the same content from the same shared profile, so co-installing antigravity and gemini-cli is idempotent — the second install re-renders byte-identical content. Installing one and later the other does not corrupt either.

Profile-to-native-config mapping

The adapter reads the shared apothem profile (the installed source tree under src/apothem/, plus the root CLAUDE.md and settings*.json) and derives the Antigravity-native config on every apothem install or apothem update run. The shared profile is the single source of truth; never edit native config directly as your edits will be overwritten on the next sync.

Compatibility notes

Preview adapter. Breaking changes expected between releases.

File an issue at the apothem repository if you encounter translation gaps.

Verification

apothem verify --harness antigravity

The verify command confirms that:

1. The native config exists at the expected path.
2. All mandatory fields from the shared profile are present.
3. The adapter version matches the installed apothem version.

Updating

apothem update --harness antigravity

Re-derives the native config from the current shared profile state. Run after any change to CLAUDE.md, src/apothem/rules/, or settings.json in the apothem source tree.

Uninstalling

apothem uninstall --harness antigravity

Removes the native config files written by the adapter. The shared apothem profile (the source tree) is unaffected.

Conformity gate

python src/apothem/conformity/conformity-gate.py --harness antigravity

Troubleshooting

Symptom	Fix
Config file not found	Re-run apothem install --harness antigravity
Adapter version mismatch	Run apothem update --harness antigravity
Unexpected config content	Check the apothem source tree (src/apothem/, CLAUDE.md, settings*.json) — that is the source of truth

Configuration knobs

Flag	Default	Description
--dry-run	false	Preview install without writing files.