Mimic

What it does

Mimic is an MCP server that allows users to build complex, modular system prompts for LLMs using small, reusable markdown fragments. Instead of writing one giant prompt, you categorize fragments into Personas, Skills, Contexts, Tones, and Constraints, which Mimic then composes into a final high-quality persona.

Tools

• compose: Builds a system prompt from specific fragments (persona, skills, contexts, tones, constraints).
• recommend: Suggests matching fragments for a given persona.
• list: Browses all available fragments and their categories.
• check_update: Verifies if a newer version of Mimic is available.
• resolve: Returns a raw graph of fragment relationships for advanced analysis.

Installation

Install using cargo: cargo install mimic-ai

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "mimic": {
      "command": "mimic",
      "args": [],
      "transportType": "stdio"
    }
  }
}

Supported hosts

Claude Code, Codex CLI, Gemini CLI, Cursor, VS Code, Windsurf, Zed