Does it work with multiple programming languages?

Yes, the skill is language-agnostic and adapts its strategy based on the detected environment, whether it be Node.js, Python, Go, or others.

What is the benefit of the 'Test-First Protocol'?

Writing a failing test before fixing the bug confirms that you have accurately identified the root cause and provides a permanent regression test to ensure the bug doesn't return.

Can this skill handle large log files or build outputs?

Yes, it uses a 'Bounded Shell Output' mandate which employs specific scripts to read files in small windows and cap logs, preventing the AI context from being overwhelmed by noise.

How does this differ from the standard /investigate command?

While /investigate is primarily designed for production-level exploration, the debug skill is specifically optimized for local development environments, build failures, and local test suites.

Local Development Debugger

Name: Local Development Debugger
Author: phrazzld

byphrazzld

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安全与测试

Investigates and resolves local development issues, runtime errors, and test failures using a strict test-driven protocol.

The Local Development Debugger skill transforms Claude into a senior engineer focused on isolating and fixing bugs within local environments. It prioritizes a 'test-first' protocol, requiring the creation of a reproduction test before any code changes are made to ensure the root cause is truly addressed. With built-in safety mechanisms for shell output, specialized performance profiling tools, and context-aware environment analysis, it streamlines the process of fixing broken builds, runtime crashes, and unexpected code behavior.

主要功能

01Codex Delegation: Leverages automated investigation patterns to quickly isolate problematic code paths.

02Root Cause Verification: Explicitly distinguishes between treating symptoms and solving underlying architectural problems.

035 GitHub stars

04Performance Profiling: Adds timing instrumentation to identify and resolve execution bottlenecks.

05Bounded Shell Output: Safely handles large logs and files using windowed reading to prevent context overflow.

06Test-First Protocol: Ensures bugs are reproduced with failing tests before any fixes are attempted.

使用场景

01Debugging runtime crashes or 'undefined' errors by tracing state and stack traces.

02Resolving failing unit tests (Jest, Vitest, etc.) by automating the reproduction and fix cycle.

03Optimizing slow functions using timing instrumentation and bottleneck analysis.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add phrazzld/claude-config debug

For use in Claude.ai and ChatGPT

Download Skill