Warmup: ChatGPT and Claude

Before we set up our terminal-based tools, let’s see what coding agents can do using tools you may already have access to.

Open ChatGPT or Claude in your browser. Download a CSV of buildings owned by the city of San Francisco - either export it yourself from the City Facilities page on the SF Open Data portal, or grab this copy:

https://static.simonwillison.net/static/2026/City_Facilities_20260307.csv

Upload it to the chat and try a prompt like:

Analyze this CSV file. Give me high level statistics about the facilities.

Try some follow-up questions:

Tell me about the departments

Which department has the most square feet?

Show me a pretty chart