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Cline Preflight preflight_sim

How to: Cline Preflight preflight_sim

client:Cline transport:streamable-http tool:preflight_sim

Add Preflight to Cline

  1. 01

    Open ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json and merge this in. Keep any servers already there.

{
  "mcpServers": {
    "preflight": {
      "url": "https://preflight--preflight-api-mcp.modal.run/mcp"
    }
  }
}
  1. 02

    Save the file and restart Cline.

  2. 03

    Ask for something preflight_sim does. Cline lists the server's tools on connect and calls preflight_sim itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that Preflight's identifier in your config matches the one above exactly.

Cline's MCP Servers pane edits this file for you if you would rather not find it. Cline docs

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 14 November 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.