Antigravity Conventions (with Gemini CLI legacy)

Tool-specific overlay for Google Antigravity CLI artifacts, including legacy Gemini CLI paths during the transition window. Loaded by the scorer and checker when an artifact is classified as Tier 2-Antigravity (per agents/scorer.md step 3). The universal floor lives in nlpm:conventions.

Status: Antigravity 2.0 was announced at Google I/O 2026 on 2026-05-19 (six days before this file was written). The directory layout is still settling, the official Antigravity-specific spec doc is sparse, and two authoritative research passes disagreed on .agent/ (singular) vs .agents/ (plural) as the canonical skills path. This skill is advisory-only for Antigravity-specific artifacts. PR-B verification trigger conditions are recorded in analysis/multi-tool-design-2026-05.md.

Transition timeline:

• Now → 2026-06-18: Gemini CLI continues serving AI Pro / Ultra / Free tiers in parallel with Antigravity CLI.
• 2026-06-18: Gemini CLI sunsets for non-enterprise. Enterprise paid licenses retained.
• After sunset: Antigravity CLI is the sole successor; .gemini/ paths fade to legacy.

Primary authoritative sources:

• https://developers.googleblog.com/build-with-google-antigravity-our-new-agentic-development-platform/
• https://developers.googleblog.com/an-important-update-transitioning-gemini-cli-to-antigravity-cli/
• https://antigravity.google/
• https://codelabs.developers.google.com/getting-started-with-antigravity-skills
• https://geminicli.com/docs/cli/skills/ (Gemini lineage; transitional)
• https://geminicli.com/docs/hooks/reference/ (Gemini lineage; transitional)
• https://github.com/google/skills