fix: #3512 type tool-end hook results as object#3518
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This was referenced May 28, 2026
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This pull request fixes tool-end hook result typing so run-level and agent-level hooks accept arbitrary function tool return values without weakening hook implementations with
Any.It updates
RunHooksBase.on_tool_endandAgentHooksBase.on_tool_endto useobject, documents that simple outputs are typically strings while function tools may return structured output objects or stringifyable values, and aligns tests and examples with the revised public hook signature.This pull request resolves #3512.