Stop telling your AI agent to 'fix the bug'. Make it reproduce it first

Wed, 30 Sep 2026 12:00:00 +0000

“Fix the login bug” is a terrible prompt for a coding agent, and a frustrating one to debug when it goes wrong. The agent will read some code, find something plausible, change it, and tell you it’s fixed. Sometimes it is. Sometimes it has patched a bug you didn’t have.

Debugging on Tokenise

Stop telling your AI agent to 'fix the bug'. Make it reproduce it first