GEMINI-MCP-SETUP.md

Gemini MCP Setup

Note: Gemini uses a different MCP protocol than Claude Code. This guide is for Gemini CLI integration.

Quick Setup for Gemini

1. Use the Gemini-Compatible Server

Gemini requires the legacy MCP format (not the Model Context Protocol SDK format).

Server file: mcp/validator-server.js (already exists, different from pinescript-mcp-server.js)

2. Configure Gemini CLI

# Navigate to project
cd /path/to/pinescript-vscode-extension

# Start Gemini with the validator server
gemini --server mcp/validator-server.js

3. Alternative: Add to Gemini Config

Create/edit ~/.gemini/config.json:

{
  "servers": {
    "pinescript-validator": {
      "command": "node",
      "args": ["mcp/validator-server.js"],
      "cwd": "/Users/jp/Library/Mobile Documents/com~apple~CloudDocs/Documents/workspaces/pinescript-vscode-extension"
    }
  }
}

Differences: Claude Code vs Gemini

Feature	Claude Code	Gemini
Protocol	MCP SDK (JSON-RPC 2.0)	Gemini CLI format
Server file	mcp/pinescript-mcp-server.js	mcp/validator-server.js
Config file	.mcp.json or ~/.claude.json	~/.gemini/config.json
Tool format	MCP standard	Gemini function_declarations
Status	✅ Working	✅ Working (different server)

Testing

For Gemini

# Test the Gemini-compatible server
node mcp/validator-server.js
# Should output JSON with tool discovery

# Send test request
echo '{"tool_code":{"name":"validate_pine_script","args":{"file_path":"examples/global-liquidity.v6.pine"}}}' | node mcp/validator-server.js

For Claude Code

# Already registered! Just use:
claude mcp list
# Should show: pinescript-validator - ✓ Connected

Recommendation

Use both!

• Claude Code: Already set up and working (this session)
• Gemini: Use mcp/validator-server.js with Gemini CLI

Both servers use the same underlying validator, just different protocols.