Debug Code by Describing Problems to Claude

Stop manually stepping through segfaults and memory corruption. This MCP server gives Claude direct control over LLDB debugging sessions, so you can describe what's broken and watch it systematically track down the issue.

What Problem Does This Solve?

You know the drill: your program crashes, you fire up LLDB, set some breakpoints, step through execution, examine memory, check registers, repeat. It's methodical work that takes time and attention to detail.

Now you can hand that process to Claude. Describe the crash, mention the input that triggers it, and Claude handles the debugging session - setting appropriate breakpoints, running the program, examining the stack trace, checking variable values, and walking through the logic to identify the root cause.

Core Benefits

AI-Driven Debugging: Claude can systematically debug crashes by automatically setting breakpoints, examining memory, and analyzing execution flow based on your description of the problem.

Complete LLDB Control: Full access to LLDB's debugging capabilities including process attachment, breakpoint management, memory examination, register inspection, and expression evaluation.

Natural Language Interface: Skip the command-line debugging dance. Tell Claude "my program segfaults when I pass 'hello' as an argument" and it handles the debugging session setup and investigation.

Post-Mortem Analysis: Load core dumps and have Claude analyze the crash state, examine the call stack, and identify what went wrong.

Real-World Use Cases

Buffer Overflow Investigation: Claude can automatically identify buffer overflows by examining memory around variables, checking bounds, and tracing execution to the point of corruption.

Crash Reproduction: Describe intermittent crashes and Claude can set up debugging sessions to catch them, examine the state when they occur, and identify patterns.

Memory Leak Detection: Set watchpoints on memory allocations and have Claude track down where memory isn't being freed properly.

Logic Bug Hunting: Claude can step through complex conditional logic, examine variable states, and identify where your assumptions break down.

Assembly-Level Debugging: When you need to debug optimized code or understand what the compiler generated, Claude can disassemble functions and trace execution at the instruction level.

Integration Workflow

The server integrates seamlessly with your existing debugging workflow:

1. Quick Setup: Clone the repo, install dependencies, add to Claude's MCP configuration
2. Natural Debugging: Describe the problem instead of setting up debugging sessions manually
3. Systematic Investigation: Claude handles the methodical process of setting breakpoints, running code, and examining state
4. Multi-Session Support: Debug multiple programs simultaneously with separate LLDB sessions

Key Features

• Session Management: Create, manage, and terminate multiple debugging sessions
• Process Control: Load executables, attach to running processes, or analyze core dumps
• Execution Control: Run, step, continue, and finish with natural language commands
• Memory Inspection: Examine memory contents, registers, and variable values
• Breakpoint Management: Set, list, and delete breakpoints with intelligent placement
• Thread Analysis: Inspect multi-threaded programs and switch between thread contexts

The server exposes LLDB's full debugging capabilities through Claude, turning complex debugging sessions into conversational problem-solving. Instead of memorizing LLDB commands and manually tracking program state, you describe what's wrong and Claude investigates systematically.

Perfect for developers who spend significant time debugging crashes, memory issues, or complex logic problems. It's particularly valuable when debugging unfamiliar codebases or tracking down hard-to-reproduce issues.