Debug a Failing MCP Tool Call: Claude Code Prompt
Walk through diagnosing a failing MCP tool call — identify where it broke, write a minimal reproduction, and fix the schema
MCPDebug a Failing MCP Tool Call: Claude Code Prompt
Walk through diagnosing a failing MCP tool call — identify where it broke, write a minimal reproduction, and fix the schema
My MCP tool [TOOL_NAME] in [YOUR_PROJECT] is failing when called from my Claude Code agent loop. Help me debug it. The error the agent receives: [PASTE THE ERROR MESSAGE OR DESCRIBE THE BEHAVIOR] Walk through this diag
MCP debugging prompt for diagnosing a failing tool call — layer-by-layer diagnosis, minimal reproduction, and targeted fix.
MCP debugging prompt for diagnosing a failing tool call — layer-by-layer diagnosis, minimal reproduction, and targeted fix.
MCP use case guide
20 prompts across the complete mcp workflow
How to use
- 1
Start by clearly filling in the [TOOL_NAME] and [YOUR_PROJECT] placeholders to provide context for the MCP tool you are debugging, ensuring the AI understands the specific environment.
- 2
Use the error message or behavior description in the [PASTE THE ERROR MESSAGE OR DESCRIBE THE BEHAVIOR] placeholder to give precise information, which helps the AI target the diagnosis effectively.
- 3
Follow up by thoroughly reviewing the common mismatches noted in Step 2, as this can reveal critical insights into potential issues with the tool's inputSchema and improve the debugging process.
Frequently asked questions
What is the Debug a Failing MCP Tool Call: Claude Code Prompt prompt used for?
MCP debugging prompt for diagnosing a failing tool call — layer-by-layer diagnosis, minimal reproduction, and targeted fix.
How do I get the best results from this testing & debug prompt?
Paste the prompt into Claude Code, Cursor, fill in every bracketed placeholder with your specific information, then submit. The more detail you add to each placeholder, the more targeted the output. You can continue in the same conversation to refine tone, length, or focus without restarting from scratch.
Does this prompt work with Claude Code?
Yes. This prompt is optimized for Claude Code and also works well with Cursor. The structured format with a defined role and numbered steps produces consistent results across all major instruction-following models, so you can use whichever tool you prefer.
How do I access this mcp prompt?
This testing & debug prompt is available through TopFreePrompts with a Lucy+ licence. You can get access with a one-time Lucy+ purchase for $109, or a $15/month plan you can cancel anytime. Both options give access to the full library of 1,000,000+ prompts across all categories.
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