# 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](https://chatgpt.com/) or [Claude](https://claude.ai/) in your browser. Download a CSV of buildings owned by the city of San Francisco - either export it yourself from the [City Facilities](https://data.sfgov.org/City-Infrastructure/City-Facilities/nc68-ngbr) 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
```