You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.290,
ImprovementsSection of the release
Unclear A size limit may still be enforced somewhere else.
What
A tool's input schema describes what input the tool accepts. Before, Claude Code rejected a schema that was over a character limit once written out as text. It no longer checks the size here. It only checks that the schema is JSON data.
Why
Tools with very large input schemas are no longer turned away at this point.
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtA size limit may still be enforced somewhere else.
