feat(antigravity-cli): emit root rules as AGENTS.md instead of GEMINI.md - #1877
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dyoshikawa merged 2 commits intoJun 16, 2026
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The Antigravity CLI (`agy`) reads the cross-tool `AGENTS.md` standard at the workspace root (Gemini-lineage discovery order is `AGENTS.md`, `CONTEXT.md`, `GEMINI.md`). rulesync previously emitted the project-root rule as `GEMINI.md`, the least-preferred-but-valid option and out of step with the `antigravity-ide` target, which already emits `AGENTS.md`. Switch the project-root rules file from `GEMINI.md` to `AGENTS.md` so both Antigravity targets align on the cross-tool standard. Global scope keeps `~/.gemini/GEMINI.md` (shared with the IDE and the Gemini home config). This is a breaking change to existing `antigravity-cli` project output: the root rule file name changes. Non-root rules under `.agents/rules/` are unaffected. Closes #1820 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
…I.md migration Address review feedback: - Add a gitignore-entries test for the antigravity-cli target asserting it now contributes **/AGENTS.md (not **/GEMINI.md), guarding the tag move. - Note in the migration guide that a previously-generated root GEMINI.md is no longer managed and should be deleted manually after regenerating. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Summary
The Antigravity CLI (
agy) reads the cross-toolAGENTS.mdstandard at the workspace root (the Gemini-lineage discovery order isAGENTS.md,CONTEXT.md,GEMINI.md). rulesync previously emitted the project-root rule asGEMINI.md— the least-preferred-but-valid option, and out of step with theantigravity-idetarget, which already emitsAGENTS.md.Per maintainer direction, this switches
antigravity-cli's project-root rules file fromGEMINI.mdtoAGENTS.md, so both Antigravity targets align on the cross-tool standard.Changes
ANTIGRAVITY_RULE_FILE_NAME→AGENTS.md(project root); addANTIGRAVITY_GLOBAL_RULE_FILE_NAME = "GEMINI.md".AntigravityCliRule.getSettablePathsnow returns rootAGENTS.mdfor project scope and keeps~/.gemini/GEMINI.mdfor global scope.gitignore-entries.ts: tagantigravity-cliunder the shared**/AGENTS.mdentry and drop the now-obsolete project**/GEMINI.mdtag (the generated ignore set is unchanged —**/AGENTS.mdand**/GEMINI.mdare still both present, the latter viageminicli, so.gitignoreneeds no regeneration).docs/**(synced toskills/rulesync/).Scope / compatibility
antigravity-cliproject output: the root rule file name changes fromGEMINI.mdtoAGENTS.md.~/.gemini/GEMINI.md, matchingantigravity-ideand the shared Gemini home config..agents/rules/are unaffected.Tests
Full suite green (6372 tests). E2E rules generate/import/global cases updated for the new project-root file.
Closes #1820
🤖 Generated with Claude Code