Datasette Agent Update Enables AI to Self-Test Apps via Hidden Sandbox
Simon Willison · rss · 2026-08-02
Simon Willison released datasette-apps 0.2a0, focusing on improving the experience of creating and editing apps with Datasette Agent.
This update introduces two new tools:
- applist(): Lists apps that the user has permission to edit, allowing the agent to make automated modifications.
- appdebug(): Allows the agent to open an app in an invisible sandboxed iframe (using opacity: 0 and pointer-events: none) and execute custom JavaScript for smoke testing. This enables the agent to verify if the app is running correctly and even perform advanced checks like measuring element dimensions.
This debugging mechanism is built on the new context.browsertask() introduced in datasette-agent 0.4a0.
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