What probably matters to youSection of the release
What
The bundled tool-use reference now documents max_uses, max_tokens and caching on the advisor tool definition, along with the advisor_tool_result_error content variant and its error codes. The cURL guide gains session budget examples: creating one with max_list_cost in minor currency units, raising or lowering it, or removing it, which is one-way. Agent version is now an integer rather than a string.
Evidence
advisor_tool_result_error
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
Read from
Names in the bundlemax_usesmax_tokenscachingmax_list_cost
