48-hour prototype: a demo built with a coding agent
Speed is part of the job. This project is about getting a believable, honest demo in front of a customer in 48 hours.
The brief
An insurance team spends hours reading claim emails and typing details into a form. They want to see, by Friday, whether AI could fill that form for them.
What you will build
- A simple page where a claim email is pasted in
- The extracted fields shown in a form the user can correct
- A short list of what is real and what is mocked
Requirements
| Requirement | Done when |
|---|---|
| Real data | It runs on at least ten real or realistic sample emails |
| Correctable | Every extracted field can be edited before saving |
| Honest | A visible note lists what is faked |
| Fast | Built within 48 hours, with the agent's plan kept in the repository |
What to learn it from
Milestones
- Write the demo scope in five bullet points
- Ask the agent for a plan and correct it before any code
- Build the extraction on one email
- Add the correction form
- Run it on all samples and note the failures
- Write the one-paragraph honest summary
How it is judged
The customer can click through it on their own samples, and the list of what is faked is complete. A polished demo that hides its gaps fails.
Stretch goals
- Add a confidence score per field
- Batch-process a folder of emails
- Record a two-minute walkthrough video
Before you call it done
Worth remembering
- The scope fitted in 48 hours
- What is faked is written down
- You would throw it away before building the real one
Every expert started right here.