We automate form filling with zero LLM calls, and that is the feature

Description and use

Automated form filling without LLM calls: record once, replay deterministically, refuse to send on mismatch, and refresh dates.

Problem

Automating form submission risks sending incorrect or outdated data to strangers, with no way to undo or confirm the action.

Outcome

The app achieves safe, deterministic form automation by recording user actions once and replaying them, refusing to send when the page changes, and handling date inputs specially.

Workflow

• 1. Open a listing in a dedicated app window. 2. Manually fill out the contact form. 3. Record the sequence of actions as a recipe keyed by domain. 4. Store the recipe for future use. 5. For new listings on the same site, replay the recorded recipe. 6. If any step no longer matches the page or a guard fails, abort and report the mismatch. 7. If a date field is detected, refresh it to a current value instead of replaying the literal. 8. Ensure total replay time stays within a hard budget to avoid hanging the monitor.

Evidence

The first time you reply to a listing on a given site, you do it yourself in a window we own, and we record what you did.

Source

If the automation gets it wrong, a real human landlord receives a real message with the user's real name, phone number and email attached.

Source