ModelRefs / Tool Result — AI Glossary
Tool Result — AI Glossary
The output returned to the agent after executing a tool call, injected into the conversation as the next context for reasoning.
Overview
After an agent emits a tool_call, the caller executes the function and returns a tool message containing the result. The agent then reasons over the result in the next turn. Tool results may be text, JSON, images (multimodal), or error messages. Error handling in tool results is critical for robust agent loops.
Reference details
| Topic | agents |
|---|---|
| Last reviewed | 2026-06-24 |
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Frequently asked questions
What is Tool Result?
The output returned to the agent after executing a tool call, injected into the conversation as the next context for reasoning.
What concepts are related to Tool Result?
Closely related concepts include tool use, tool selection, assistant message.