Gemini rejects integer enums, dangling required fields, untyped arrays, and
object keywords on scalar schemas. The sanitizer was previously a divergent
copy in OpenCode; this lands it in the package as a tool-schema patch with
deterministic tests and selects it for Gemini-protocol or Gemini-named models.
Also tightens the Gemini test suite: covers tool-choice none, drops the
tool-input-delta assertion that Gemini does not actually emit, and confirms
total usage stays undefined when only thoughtsTokenCount arrives.
Kit Langton
3561938e41