Engineer mode

Re-run AI generation on an existing capture without re-browsing.

Engineer mode skips the capture step. It takes an existing run (HAR plus metadata) and re-runs the AI generation pass. Useful when you want to try a different model, prompt, or output language without re-doing the browser work.

When to use it

The first generation missed something. Try Opus 4.6, or tweak the prompt.
You want the same capture exported to a different language (Python to TS).
You want to iterate on the generated client without paying the cost of re-capturing the site.

How to run it

Interactive:

reverse-api-engineer
# switch to engineer mode with Shift+Tab, then enter <run_id>

Direct:

reverse-api-engineer engineer <run_id>

Find the run_id of a previous run with:

reverse-api-engineer list

Or --json for a machine-parseable list:

reverse-api-engineer list --json | jq

What gets regenerated

Everything the AI emits gets rebuilt: api_client.*, example_usage.*, README.md. The HAR itself is unchanged. Engineer mode writes back to the same run's scripts directory, so use version control or copy the output first if you want to compare iterations side by side.