Inspiration
After a stressful incident, people must collect evidence, remember important details, and translate an ordinary explanation into an unfamiliar insurance form. ClaimDone makes that first step feel as simple as sharing a few photos and explaining what happened.
What it does
ClaimDone turns one to three accident photos plus a short text or voice description into a clear insurance-claim. The multimodal claim agent reviews the visible evidence and the customer statement. Once the claim is complete, Computer Use opens a dummy insurer website, navigates from its home page to the claim form and fills only the approved claim values.
How I built it with Codex and GPT-5.6
The runtime AI pipeline uses:
- GPT-5.6 for multimodal image and statement analysis through the OpenAI Responses API
- gpt-4o-mini-transcribe for voice memos
- gpt-5.4-mini Computer Use for the restricted insurer-portal handoff
Codex was my used for all of the development. I used it to plan the product flow, implement the frontend and backend, create the restricted Computer Use workflow, review the responsive interface in a browser, diagnose failures, write tests, and prepare the repository and demo. GPT-5.6 Sol extra high was used for deep planning. GPT-5.6 ULTRA for milestone-based goals, and GPT-5.6 Terra supported fast iteration and day-to-day questions.
A key workflow lesson was to define the product in Plan mode first, when I don't know what exactly to build. Then give longer Codex goals with explicit milestone stops. After every milestone I reviewed the working experience, gave feedback, and continued after approval. That produced a much smaller and more coherent result than giving a long-running agent an underspecified destination.
Accomplishments I'm proud of
- Real Computer Use navigation and form filling inside a safe synthetic portal
- One simple customer flow with only four states: input, analyzing, needs information, and ready
- Observable agent activity that remains useful without exposing hidden reasoning
P.S.
I learned that Codex works best for ambitious builds when product uncertainty is resolved before implementation. Planning, precise goals, and review checkpoints made the agent dramatically more effective.
Built With
- codex
- computer-use
- gpt-5.6
- next.js
- openai
- openai-responses-api
- playwright
- react
- typescript

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