Simon Willison's WeblogJun 7, 2026, 11:56 PM

datasette-agent-edit 0.1a0

Simon Willison released a reusable Datasette Agent plugin for agentic text editing tools.

Simon Willison released datasette-agent-edit 0.1a0 as a base plugin for Datasette Agent. It is intended to support future plugins that edit existing text, including collaborative Markdown, large SQL queries, and SVG files. The design follows Claude’s text editor tool pattern, exposing view, str_replace, and insert primitives so other plugins can reuse a stricter editing workflow.

Simon Willison has released datasette-agent-edit 0.1a0, a foundational plugin prepared for Datasette Agent. The article's focus is not on showcasing a complete end-user product, but on explaining that he plans to develop several plugins for Datasette Agent that can modify existing text content, and therefore is first extracting the common "agentic text editing" capability into a standalone package. The use cases mentioned in the article include collaborative Markdown editing, updating large SQL queries, and editing SVG files. None of these tasks are simply about generating new text; they require the AI to accurately view, locate, replace, or insert content within an existing document.

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