ServerToolResult Class — langchain Architecture
Architecture documentation for the ServerToolResult class in content.py from the langchain codebase.
Entity Profile
Dependency Diagram
graph TD 9b81b2bc_e8c3_580a_ec8b_ae96263abb90["ServerToolResult"] c7f11daf_e104_efbe_7225_f1d6da8e8630["content.py"] 9b81b2bc_e8c3_580a_ec8b_ae96263abb90 -->|defined in| c7f11daf_e104_efbe_7225_f1d6da8e8630
Relationship Graph
Source Code
libs/core/langchain_core/messages/content.py lines 425–453
class ServerToolResult(TypedDict):
"""Result of a server-side tool call."""
type: Literal["server_tool_result"]
"""Used for discrimination."""
id: NotRequired[str]
"""Unique identifier for this server tool result.
Either:
- Generated by the provider
- Generated by LangChain upon creation (`UUID4` prefixed with `'lc_'`))
"""
tool_call_id: str
"""ID of the corresponding server tool call."""
status: Literal["success", "error"]
"""Execution status of the server-side tool."""
output: NotRequired[Any]
"""Output of the executed tool."""
index: NotRequired[int | str]
"""Index of block in aggregate response. Used during streaming."""
extras: NotRequired[dict[str, Any]]
"""Provider-specific metadata."""Defined In
Source
Frequently Asked Questions
What is the ServerToolResult class?
ServerToolResult is a class in the langchain codebase, defined in libs/core/langchain_core/messages/content.py.
Where is ServerToolResult defined?
ServerToolResult is defined in libs/core/langchain_core/messages/content.py at line 425.
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