product · inferred from evidence
caller
A field added to tool_use blocks in v0.75.0 of the Anthropic Python SDK, causing a breaking change due to its schema default.
- 400 tool_use.caller: Extra inputs are not permitted after upgrading to v0.75.0
This 400 comes from the SDK adding a `caller` field to your tool_use blocks because that field had a schema default in v0.75.0. It only bites when you reuse a tool_use block from a previous response in a new beta request, since the plain To