Install Code Debugging
Pick your agent. Every command is ready to paste.
npx skills add lingzhi227/agent-research-skills --skill code-debuggingThe open skills CLI detects your agents (Claude Code, Cursor, Codex and 70+ more) and installs to the right folder. Add -g to install globally.
01
Install it
Run the command above, or upload the folder in Claude.
02
Ask naturally
Describe the task. Your agent loads code-debugging when the request matches its description.
03
Name it if needed
If it does not trigger, say “use the code-debugging skill”. In Codex, type $code-debugging.
Code Debugging
Systematically debug experiment code with structured error categorization and fix strategies.
Input
$0— Error message, stderr output, or code file with issues$1— Optional: the code that produced the error
References
- Debug patterns and state machine:
~/.claude/skills/code-debugging/references/debug-patterns.md
Workflow
Step 1: Categorize the Error
| Category | Examples | Severity |
|---|---|---|
| SyntaxError | Invalid syntax, indentation | Low |
| ImportError | Missing module, wrong name | Low |
| RuntimeError | Division by zero, shape mismatch | Medium |
| TimeoutError | Infinite loop, too slow | Medium |
| OutputError | Missing files, wrong format | Medium |
| LogicError | Wrong results, 0% accuracy | High |
Step 2: Analyze Root Cause
- Read the error traceback (last 1500 chars if truncated)
- Identify the exact line and variable causing the error
- Check for common patterns:
- Device mismatch (CPU vs GPU tensors)
- Shape mismatch in matrix operations
- Missing data normalization
- Off-by-one errors in indexing
- Incorrect loss function for task type
Step 3: Apply Fix Strategy
For syntax/import errors: Direct fix, single attempt For runtime errors: Fix and rerun, up to 4 retries For logic errors: Reflect on approach, consider alternative methods For timeout: Reduce dataset size, optimize bottleneck, add early stopping
Step 4: Reflect and Prevent
After fixing:
- Explain why the error occurred
- Identify which lines caused it
- Describe the fix line-by-line
- Note patterns to avoid in future code
Fix Strategy State Machine
Stage 0 (first attempt) → repost code as fresh
Stage 1 (second attempt) → repost or leave depending on severity
Stage 2 (third attempt) → regenerate from scratch if still failing
Rules
- Prefer minimal targeted edits over full rewrites
- Maximum 4-5 fix attempts before changing approach
- Always truncate long error outputs to last 1500 characters
- After fixing, verify the fix doesn't introduce new errors
- Keep error history to avoid repeating the same mistakes
- If 0% accuracy: check accuracy calculation first, then check data pipeline
Related Skills
- Upstream: experiment-code
- See also: paper-to-code, data-analysis
Tips for Code Debugging
- • Start a fresh session after installing so your agent picks up the new skill.
- • It bundles reference files. The agent reads them only when needed, so they cost no context until then.
- • It is part of a pack with 30 skills. Install only the ones you need with --skill to keep triggers precise.
- • If two skills overlap, mention the one you want by name.
Questions about Code Debugging
What does the Code Debugging skill do?
Debug experiment code with structured error analysis. Categorize errors, apply targeted fixes with retry logic, and use reflection to prevent recurring issues. Use when experiment code fails or produces incorrect results.
How do I install Code Debugging?
Run "npx skills add lingzhi227/agent-research-skills --skill code-debugging" in your project. The skills CLI installs it for Claude Code, Cursor, Codex and 70+ other agents. In Claude on the web, upload the skill folder as a ZIP under Customize > Skills.
Does Code Debugging work in Cursor and Codex?
Yes. Code Debugging uses the open SKILL.md format, so it works in Claude Code, Claude, Cursor, OpenAI Codex, Gemini CLI, GitHub Copilot and other agents that support agent skills.
Is Code Debugging free?
Code Debugging is open source on GitHub. It is free to install; check the license before commercial use.
Who made Code Debugging?
Code Debugging is published by lingzhi227 in the lingzhi227/agent-research-skills repository, together with 29 other skills.



