Letta · Schema
ToolReturn
AIAgentsStateful AgentsMemoryMemGPTContinual LearningMCPMulti-AgentRAGOpen Source
Properties
| Name | Type | Description |
|---|---|---|
| tool_call_id | object | The ID for the tool call |
| status | string | The status of the tool call |
| stdout | object | Captured stdout (e.g. prints, logs) from the tool invocation |
| stderr | object | Captured stderr from the tool invocation |
| func_response | object | The function response - either a string or list of content parts (text/image) |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "#/components/schemas/letta__schemas__message__ToolReturn-Input",
"title": "ToolReturn",
"properties": {
"tool_call_id": {
"anyOf": [
{},
{
"type": "null"
}
],
"title": "Tool Call Id",
"description": "The ID for the tool call"
},
"status": {
"type": "string",
"enum": [
"success",
"error"
],
"title": "Status",
"description": "The status of the tool call"
},
"stdout": {
"anyOf": [
{
"items": {
"type": "string"
},
"type": "array"
},
{
"type": "null"
}
],
"title": "Stdout",
"description": "Captured stdout (e.g. prints, logs) from the tool invocation"
},
"stderr": {
"anyOf": [
{
"items": {
"type": "string"
},
"type": "array"
},
{
"type": "null"
}
],
"title": "Stderr",
"description": "Captured stderr from the tool invocation"
},
"func_response": {
"anyOf": [
{
"type": "string"
},
{
"items": {
"oneOf": [
{
"$ref": "#/components/schemas/TextContent"
},
{
"$ref": "#/components/schemas/ImageContent"
}
],
"discriminator": {
"propertyName": "type",
"mapping": {
"image": "#/components/schemas/ImageContent",
"text": "#/components/schemas/TextContent"
}
}
},
"type": "array"
},
{
"type": "null"
}
],
"title": "Func Response",
"description": "The function response - either a string or list of content parts (text/image)"
}
},
"type": "object",
"required": [
"status"
]
}