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Agents and harnesses · coding-agents

A developer documents an AI-assisted GeoJSON map viewer built with coding agents and generated government-data files.

Sep 1, 2026, first seen via Simon Willison

Simon Willison describes building a GeoJSON map viewer with GPT-5.6-Sol, Claude Code, and Fable 5.1, while ChatGPT Work generated boundary files from government data sources.

Read the original at simonwillison.netOpens the publisher's site in a new tab

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