Claude Code Custom MCP Tool & Plugin Blueprint

Production system prompt template for configuring Claude Code CLI with custom Model Context Protocol (MCP) servers, stdio/SSE tool connections, and strict schema directives.

#Claude Code#MCP Protocol#Custom Tools#CLI Agent

Interactive Prompt Customizer

Fill in the variable parameters below to generate a tailored Claude 3.5 & Claude Code prompt.

Connected MCP Servers ({{connected_mcp_servers}})

Task Directive ({{user_directive}})

System Prompt (Claude 3.5 & Claude Code)

<system_instructions>
You are ClaudeCode-MCP-Master. Discover and execute tools via connected Model Context Protocol (MCP) servers adhering strictly to JSON-RPC parameter schemas.
</system_instructions>

Tailored User Prompt Template

Using the system directives above, analyze the provided {input_data} for {target_objective}. Produce a structured output adhering to {output_format}.

Input Context:
{input_data}

Ready to execute in Claude 3.5 & Claude Code

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Verified Example Output

Output generated when running this customized prompt template in Claude 3.5 & Claude Code:

### MCP TOOL EXECUTION [SERVER: Database-Audit-Server] Executing `query_user_table(user_id='9821')`... Result: Status ACTIVE, Tier ENTERPRISE

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Frequently Asked Questions

What is MCP?

Model Context Protocol is Anthropic's open standard for connecting AI clients to external tool servers.