You'll noticeTier: how much it should matter to you
4Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Error MessagesArea: what it touches
ImprovementsKind: in v2.1.229,
What probably matters to youSection of the release
What
On an HTTP 413 from the API, Claude Code now measures the request body and how much of it is images and documents, then tells you whether removing attachments or compacting could make it fit or whether nothing in the request is strippable.
Details
The size threshold used for the explanation comes from a remote config value named tengu_wobbly_fern, falling back to a built-in limit when no value is supplied.
Details of the oversized request are logged as a request_body_over_limit line.
Evidence
so removing attachments or compacting cannot make it fit.
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
How sure we are
One source agreesOne thing we can check says the same as this entry.
The name it cites is new in this buildNew in this build: tengu_wobbly_fern
