docs: note GEMINI_API_KEY requirement for the gemini backend#16
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Google is retiring the free Gemini CLI OAuth tier on June 18, 2026 (transitioning to Antigravity CLI). Update the troubleshooting note so users set GEMINI_API_KEY in the environment instead of the now-ending browser OAuth login; otherwise the gemini backend won't run. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Summary
Google is retiring the free Gemini CLI OAuth tier (Google AI Pro/Ultra/free) on June 18, 2026, transitioning users to Antigravity CLI. The previous "run
geminionce to authenticate via browser" guidance will stop working for those tiers after that date.This PR updates the README troubleshooting note only — no code changes.
Change
GEMINI_API_KEYin the environment, otherwise thegeminibackend won't run. The key is passed through to the spawned CLI via the inherited process environment, so no code change is needed.Notes
geminiis already listed last across the engine/support lists, so no reordering was needed.agy) is intentionally not adopted yet: it currently emits plain-text output only (no JSON/stream-json), which the backend integration depends on. Revisit onceagyships structured output.🤖 Generated with Claude Code