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[ARTICLE · art-24295] src=simonwillison.net pub= topic=ai-tools verified=true sentiment=↑ positive

datasette 1.0a33

Simon Willison released Datasette 1.0a33, a significant alpha toward a stable 1.0 that extends the `?_extra=` pattern to cover queries and rows in addition to tables. The new JSON extras feature is now documented, and Willison used AI coding tools including Claude Code and Codex Desktop to build a custom extras API explorer demonstrating the functionality.

read1 min publishedJun 11, 2026

Release: datasette 1.0a33 This alpha is a significant step on the road to a stable 1.0, finally extending the ?_extra=

pattern I introduced in Datasette 1.0a3 to cover queries and rows in addition to tables. That pattern is also now documented!

I wrote a whole lot more about the new release on the Datasette project blog: ** Datasette 1.0a33 with JSON extras in the API**.

Because API explorer tools are almost free to build now I had Claude Fable 5 in Claude Code (for the plan) and GPT-5.5 xhigh in Codex Desktop (for the implementation) build me this custom extras API explorer to help demonstrate the feature:

Tags: projects, datasette, annotated-release-notes, ai-assisted-programming

source & further reading
simonwillison.net — original article OpenAI WebRTC Audio Session, now with document context Quoting Andrew Singleton Claude Fable is relentlessly proactive
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