Class●Since v0.1

PostToolUseEvent

PostToolUseEvent()

Bases

_DomainModel

Attributes

Methods

View source on GitHub

attribute

event: Literal[HookEvent.POST_TOOL_USE]

duration_ms: int | None

method

from_tool_result

Build a PostToolUseEvent from a native tool return value.

PostToolUse crosses a LangGraph interrupt boundary, so the domain event must carry JSON — not a live Command / ToolMessage. Re-validating a dumped Command as ToolMessage raises KeyError: 'tool_call_id' in LangChain's message coercion.

Domain payload for PostToolUse.

result is the JSON projection of the native tool return value, not a live Command / ToolMessage. The live value stays in the tool wrapper for decision application; only JSON crosses the interrupt boundary to the client.

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PostToolUseEvent

Bases

Attributes

Methods