Home › Prompts › Community › Test-First Bug Fixing Approach

Test-First Bug Fixing Approach

Any chat AICodingCommunity (CC0)

Note: Review and test before use. Provided as is, without warranty. See Terms.

Prompt

Download  
I have a bug: ${bug}. Take a test-first approach: 1) Read the relevant source files and existing tests. 2) Write a failing test that reproduces the exact bug. 3) Run the test suite to confirm it fails. 4) Implement the minimal fix. 5) Re-run the full test suite. 6) If any test fails, analyze the failure, adjust the code, and re-run—repeat until ALL tests pass. 7) Then grep the codebase for related code paths that might have the same issue and add tests for those too. 8) Summarize every change made and why. Do not ask me questions—make reasonable assumptions and document them.

How to use

More: all coding prompts · all community prompts · prompt library

Related prompts

Safe refactor plan with small steps

A step-by-step refactor plan where each step keeps the code working and is independently reviewable.

Any chat AICoding

Debug an error with hypotheses

A debugging prompt that makes the model rank hypotheses and suggest the fastest checks instead of guessing a fix.

ChatGPTCoding

Thorough pull request review

A structured code review focused on correctness, security and maintainability, with severity labels and concrete fixes.

ClaudeCoding

Generate meaningful unit tests

Tests that cover behavior, edge cases and failure modes for a function, in your framework's style.

ClaudeCoding

Explain an unfamiliar codebase

Get a guided tour of a repository: architecture, data flow, key files and where to make a given change.

GeminiCoding

Write and explain a SQL query from a schema

Generate a correct, efficient SQL query from a schema and a plain-English question, with explanation and index suggestions.

GrokCoding

Get new rules weekly

One email a week: fresh rule files, agent tips, and what's changing in Cursor, Claude Code and Copilot. Free, unsubscribe anytime.

Opens the Rulestack Newsletter on beehiiv in a new tab. Or subscribe directly on beehiiv.