Fix a bug in the browser with Replit's AI - no local setup required
When the environment is the problem, an in-browser IDE with an AI pair saves the day. Know its ceiling.
Some bugs only reproduce in a specific environment you do not have locally. Replit runs the project in the browser and its AI can poke at the live error, which beats staring at a stack trace on your machine.
I paste the failing run's output and ask: 'What is the most likely cause, and what is the smallest change to test it?' Smallest change matters; a big rewrite from an AI on a broken build is how you get two broken builds.
Run the fix in the same Replit environment so the test actually matches production. Fixing locally and hoping it ports is the old mistake the browser IDE is supposed to remove.
Treat the AI like a junior pair: good at the obvious, blind to the architectural. Verify the fix holds under the case that broke it.