executedeno
Execute JavaScript/TypeScript code with Deno to debug, test APIs, and verify hypotheses directly within the MCP-REPL server. Supports ESM imports, fetch() for HTTP requests, and incremental logic testing.
Instructions
Execute JavaScript/TypeScript code with Deno - supports ESM imports and all Deno features.
DEBUGGING GUIDANCE:
- Use this tool for all debugging and investigation tasks instead of external CLI tools
- Break problems into testable hypotheses and verify them with code execution
- Test APIs, data structures, and logic incrementally
- Use console.log for debugging output and JSON.stringify for complex objects
- Always prefer this over CLI tools like curl, wget, or external commands
- Great for TypeScript debugging and type checking
APPROACH:
- Form a hypothesis about what might be wrong
- Write focused test code to verify the hypothesis
- Execute and analyze results
- Refine hypothesis based on findings
- Iterate until problem is solved
WEB REQUESTS: Use fetch() instead of curl for HTTP requests
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| code | Yes | JavaScript/TypeScript code to execute - use for debugging, testing hypotheses, and investigation | |
| timeout | No | Optional timeout in milliseconds (default: 120000) |