Building with Gemini

Use this skill for two main categories:

1. Gemini API / SDK application code
2. Gemini CLI customization and workflow setup

Treat them separately unless the user explicitly wants both.

Hard Rules

• For new Gemini API work, use the Google GenAI SDK unless the user explicitly asks for raw REST.
• Do not start new code on legacy SDKs like:
  • google-generativeai
  • @google/generative-ai
• If the repo already uses a legacy Gemini SDK and the user asked for a patch, work with the existing code first, then offer a migration path.
• Do not guess exact model names, preview status, or feature support when those facts matter. Verify from official Gemini docs.
• Prefer stable, non-preview models unless the feature is preview-only or the user explicitly asked for preview.