Delve MCP

by dwisiswant0
MIT License
1
  • Linux
  • Apple

Integrations

  • Supported platform for running the Delve MCP server with specific configuration paths.

  • Supported platform for running the Delve MCP server with specific configuration paths.

  • Provides integration with Mozilla's rr tool for replay debugging of Go programs, allowing historical execution tracing and analysis.

delve-mcp

MCP server for Delve debugger integration

This is a TypeScript-based MCP server that provides a complete interface to the Delve debugger for Go programs. It implements all major Delve commands and capabilities through MCP tools.

Features

Resources

  • List and access debug sessions via delve:// URIs
  • Each session has metadata about its type, target, and port
  • JSON representation for session details and state

Tools

Debug, trace, and analyze Go programs with:

  • Debug commands (debug, attach, exec, test)
  • Core dump analysis
  • Program tracing
  • Replay debugging with rr
  • DAP server support
  • Breakpoint management with conditions
  • Execution control (continue, step, next)
  • Variable inspection and evaluation
  • Backend selection (native, lldb, rr)
  • Logging configuration
  • Session management

Environment Setup

The server requires:

  • Go installed with Delve (go install github.com/go-delve/delve/cmd/dlv@latest)
  • For replay functionality: Mozilla rr (https://github.com/mozilla/rr)
  • Node.js and npm

Installation

To install Delve MCP server:

npm install @dwisiswant0/delve-mcp

Development

Install dependencies:

npm install

Build the server:

npm run build

For development with auto-rebuild:

npm run watch

Configuration

To use with Claude Desktop, add the server config:

  • On Linux: ~/.config/Claude/claude_desktop_config.json.
  • On MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json.
  • On Windows: %APPDATA%/Claude/claude_desktop_config.json.
{ "mcpServers": { "delve-mcp": { "command": "/path/to/delve-mcp/build/index.js" } } }

Available Tools

Debug Commands

  • debug - Debug a Go package in current directory or specified package
  • attach - Attach to a running process by PID
  • exec - Execute and debug a precompiled binary
  • test - Debug tests in current package or specified package
  • core - Examine a core dump file with associated executable
  • dap - Start a Debug Adapter Protocol (DAP) server
  • replay - Replay an rr trace recording
  • trace - Trace program execution with function matching

Control Commands

  • setBreakpoint - Set a breakpoint with optional condition
  • removeBreakpoint - Remove an existing breakpoint
  • continue - Continue program execution
  • next - Step over to next line
  • step - Step into function call
  • stepout - Step out of current function
  • variables - List local variables in current scope
  • evaluate - Evaluate expression in current scope

Configuration Commands

  • version - Get Delve version information
  • setBackend - Configure debug backend (native, lldb, rr)
  • configureLogging - Configure debug logging components

Usage Examples

Starting a Debug Session

// Debug current package { name: "debug" } // Debug with specific package and build flags { name: "debug", arguments: { package: "./cmd/myapp", buildFlags: "-tags=integration" } }

Managing Breakpoints

// Set a breakpoint { name: "setBreakpoint", arguments: { sessionId: "abc123", file: "main.go", line: 42, condition: "count > 5" } }

Inspecting State

// List variables { name: "variables", arguments: { sessionId: "abc123" } } // Evaluate expression { name: "evaluate", arguments: { sessionId: "abc123", expr: "myVar.Field" } }

License

MIT.

-
security - not tested
A
license - permissive license
-
quality - not tested

A TypeScript-based MCP server providing a complete interface to the Delve debugger for Go programs, enabling debugging, tracing, and analyzing Go code through natural language commands.

  1. Features
    1. Resources
    2. Tools
    3. Environment Setup
  2. Installation
    1. Development
      1. Configuration
    2. Available Tools
      1. Debug Commands
      2. Control Commands
      3. Configuration Commands
    3. Usage Examples
      1. Starting a Debug Session
      2. Managing Breakpoints
      3. Inspecting State
    4. License

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