You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
File AttachmentsArea: what it touches
ImprovementsKind: in v2.1.323,
ImprovementsSection of the release
What
Typing @ followed by a file name attaches that file to your message.
Notebooks: Jupyter notebook files are now attached as a parsed notebook block of cells instead of raw text.
Large files: when a file is too big to attach whole and ranges are supplied, the mention can come back as unread: "in_ranges" with line ranges. Before, large files were cut short or marked too_large.
Read instructions: for an oversized file, Claude is told to make a set of parallel Read calls with exact offset and limit values that together return the whole file. Before, it only got general advice to read the file in portions.
Why
Mentioning a big file or a notebook should give Claude its full contents in a usable shape, instead of a truncated file or a wall of notebook JSON.
