gemini-chat-and-reason

Gemini Chat and Reason

Use this skill when you want Gemini to serve as a reasoning partner: reviewing code, critiquing a design, stress-testing a decision, or providing a second opinion on anything Claude has produced or is about to produce.

When to use this skill

• Code review: You have written a non-trivial function or module and want a second set of eyes before committing.
• Design critique: You are proposing an architecture, API contract, or data model and want pushback.
• Sanity check: You are about to take an irreversible action (deploy, delete, migrate) and want confirmation the plan is sound.
• Perspective shift: Claude's reasoning has gone deep down one path; Gemini can surface blind spots.
• Multi-turn dialogue: You need to iterate on a draft or decision through several back-and-forth exchanges.

MCP tools

Tool	Purpose
gemini_generate	Single-shot text generation, best for one-off questions or reviews
gemini_chat	Multi-turn conversation, best for iterative critique or dialogue

Model selection guidance

• For routine second opinions and code reviews, use the default model (gemini-3.8-flash for chat); it is fast and cheap.
• For complex architectural decisions or lengthy documents requiring deep reasoning, request gemini-3.1-pro-preview explicitly via the model parameter. This is already the default for gemini_generate.
• Avoid the pro tier on short, low-stakes queries; the cost uplift is not justified.

Usage pattern

Single-shot review with gemini_generate

{
  "tool": "gemini_generate",
  "arguments": {
    "prompt": "Review the following Go function for correctness, error handling, and idiomatic style:\n\n```go\n<paste code here>\n```",
    "model": "gemini-3.8-flash"
  }
}

Multi-turn design critique with gemini_chat

Start a session, then send follow-up messages in the same session_id:

{
  "tool": "gemini_chat",
  "arguments": {
    "message": "I am designing a REST API for a payment service. Here is the proposed endpoint structure: <details>. What are the biggest risks?",
    "session_id": "payment-api-review"
  }
}