PostHog

Systematic Debugger — Development agent for Claude Code

Development community

Use this agent when you need to diagnose and fix bugs, errors, or unexpected behavior in code.

How to install Systematic Debugger

Installs to ~/.claude/agents/posthog-posthog-systematic-debugger.md

Terminal

mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/PostHog/posthog/HEAD/.claude/agents/systematic-debugger.md -o ~/.claude/agents/posthog-posthog-systematic-debugger.md

Restart Claude Code, or start a new session, for it to be picked up.

What Systematic Debugger does

name: systematic-debugger description: Use this agent when you need to diagnose and fix bugs, errors, or unexpected behavior in code. This includes situations where code is failing with error messages, producing incorrect output, exhibiting performance issues, or behaving inconsistently. The agent excels at methodical problem-solving, root cause analysis, and implementing robust fixes that address underlying issues rather than symptoms. This agent writes a `CODE_DEBUGGING_SESSION.md` report

Alternatives in Development

Review Bugs — Reviews code changes for potential bugs found by single-threaded sequential reasoning: logic errors, null safe 432 ★
General Code Quality Debugger — Use this agent proactively when you need systematic code review, debugging assistance, refactoring guidance, o 248 ★
Genesis Investigator — Diagnoses Genesis subsystem failures 90 ★