Why Most Bug Reports Fail

I’ve reviewed hundreds of bug reports over my career. The majority have the same problem: they describe what happened but not how to reproduce it. A developer reading “the button doesn’t work” has almost no actionable information.

A great bug report is a complete story that tells the developer exactly what the system did, what it should have done, and precisely how to see it for themselves.

The Anatomy of a Perfect Bug Report

1. Title — Be Specific

Bad: Login not working

Good: POST /auth/login returns 500 when email contains uppercase characters

The title should be a one-line summary that immediately communicates scope and impact.

2. Severity and Priority

Separate these two — they’re different:

  • Severity = technical impact (how bad is the broken behavior?)
  • Priority = business urgency (how quickly must this be fixed?)

A typo on the homepage might be low severity but high priority if the CEO is demoing tomorrow.

3. Environment

Environment: Staging
Browser: Chrome 119 on macOS Sonoma
User Role: Admin
Test Account: [email protected]
Date Found: 2024-09-22

4. Steps to Reproduce

This is the most important section. Be surgical:

1. Navigate to https://staging.myapp.com/login
2. Enter email: "[email protected]" (with mixed case)
3. Enter password: "ValidPassword123"
4. Click "Sign In" button
5. Observe the response

Every step should be numbered and atomic. No “do the usual login flow” — spell it out.

5. Expected vs Actual

Expected: User is authenticated and redirected to /dashboard

Actual: HTTP 500 Internal Server Error returned.
        Response body: {"error": "User not found"}
        (The user exists in the database with lowercase email)

6. Evidence

Always attach:

  • Screenshots or screen recordings
  • Network request/response (HAR file or screenshot)
  • Console errors
  • Relevant logs if available

A Template You Can Copy

## Summary

[One clear sentence describing what's broken]

## Environment

- Environment: [dev/staging/production]
- Browser/OS: [Chrome 119 / macOS Sonoma]
- User Role: [admin/user/guest]

## Steps to Reproduce

1.
2.
3.

## Expected Result

[What should happen]

## Actual Result

[What actually happens]

## Severity: [Critical/High/Medium/Low]

## Priority: [High/Medium/Low]

## Evidence

[Screenshots, recordings, logs]

Developer-Friendly Extras

If you can identify the probable cause, include a “Hypothesis” section. Developers appreciate it and it shows you understand the system. Even if you’re wrong, it starts a productive conversation.

Bug reports are communication artifacts. The better they are, the faster bugs get fixed — and the more developers trust and respect the QA team.