JotsuDocs
Quickstartbeginner·10 minutes

Debug a broken application

Reproduce an application failure, inspect the relevant Jotsu logs, and ask Codex to make the smallest focused fix and verify it.

What you will do

Find the first relevant error and verify a focused repair.

1. Reproduce the failure

Write down the exact action, expected result, actual result, and approximate time.

2. Inspect the logs

Open the application’s Dev tab. Reproduce the action once, then find the first related error in Dev logs.

3. Ask Codex to investigate

Open Build. Give Codex the reproduction steps and ask it to identify the root cause before making changes. Include a redacted log excerpt.

4. Verify the fix

Repeat the original steps. Confirm the expected result, reload the page, and check Dev logs for a successful outcome.

What happened

The diagnosis used a repeatable failure and server evidence, so the repair could remain limited to the responsible code or configuration.