AI Agent Skill: Efficient Bug Fixing with Failing Tests

AI Agent Skill: Efficient Bug Fixing with Failing Tests

This AI agent skill methodically fixes bugs by first reproducing the error within a failing test, then implementing the smallest necessary change to resolve the issue. Designed to address cases explicitly identified as "broken" or "failing" within software projects, it ensures a structured approach to effective debugging.

What this skill does

• Restate the Symptom: Clearly define the issue by writing down the current and expected behavior, along with the triggering command.
• Reproduce in a Test: Craft a test targeting the specific symptom at its corresponding code layer. Validate failure for the correct reason, grounded in the defined symptom.
• Identify the Root Cause: Trace the error to the originating code section, recording the finding accurately without resorting to superficial fixes.
• Implement the Smallest Fix: Apply minimal code changes to directly address the root cause. Note any other issues separately for future resolution.

Who it is for

This skill is ideal for developers and teams who employ AI coding agents such as Claude Code, Cursor, or Codex. It benefits those who prioritize systematic debugging in their development processes.

Use cases

• Applicable when a software component fails or behaves unexpectedly, and a clear debugging structure is required.
• Particularly useful in development environments where reproducing and understanding an error systematically aids in efficient bug resolution.
• Helps software teams maintain code quality by ensuring that bug fixes are targeted and minimal.

Technical details

• Compatibility with AI coding agents: Claude Code, Cursor, Codex.
• Utilizes testing frameworks and methodologies aligned with industry standards for robust software testing and debugging.
• Requires knowledge of the project's architecture to correctly identify and address bugs at appropriate code layers.

Source & Licence

This package is built on open-source work published by Doist (Doist/todoist-cli) and distributed under MIT. The original licence text and copyright notice are included in your download.

Personal and commercial use, modification and redistribution are permitted, provided the original copyright and licence notice are retained.

Your purchase covers curation, licence verification, packaging, documentation and instant delivery. It does not grant exclusive rights to the underlying open-source code, which remains available under its original licence.

Delivery & Support

• Delivery: instant — a secure download link is emailed to you as soon as payment is confirmed.
• Format: ZIP archive containing the skill files, documentation and the original licence.
• Support: support@mcpcart.com — we aim to reply within 2 business days.
• Updates: updates are included only where stated on this page.

Refunds

This is a digital product delivered immediately after purchase. By completing your order you request immediate delivery and acknowledge that, once the download has been accessed, the statutory right to cancel no longer applies to the extent permitted by law. Refund requests are handled in accordance with our published Refund Policy.

Claude, Codex, Gemini and Cursor are trademarks of their respective owners. MCP Cart is an independent marketplace and is not affiliated with, endorsed by, or sponsored by any of them. Compatibility references describe interoperability only.