datasette-agent-edit 0.1a0
Mirrored from Simon Willison for archival readability. Support the source by reading on the original site.
7th June 2026
I'm planning several plugins for Datasette Agent which can make edits to existing pieces of text - things like collaborative Markdown editing, updating large SQL queries, and editing SVG files.
Agentic editing of text is a little tricky to get right. My favorite published design for this is for the Claude text editor, which implements the following tools:
view- view sections of a file, with line numbers added to every line.str_replace- find an exactold_strand replace it withnew_str- fail if the original string is not uniqueinsert- insert the specified text after the specified line number
Rather than recreate these patterns for every plugin that needs them I decided to create this base plugin, datasette-agent-edit, which implements the core tools in a way that allows them to be adapted for other plugins.
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This is a beat by Simon Willison, posted on 7th June 2026.
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