Skip to main content
Agent Stack home page
Agent Stack
Search...
⌘K
Introduction
Welcome
Quickstart
Deploy Agents
Wrap Your Existing Agents
Build New Agents
Deploy Your Agents
Connect A2A Agents
Agent Integration
Server SDK (Python)
Working with Messages
Multi-Turn Conversations
Working with Files
Customize Agent Details
LLM Proxy Service
Visualize Agent Trajectories
Add Citations to Agent Responses
Collect Input with Forms
Configure Agent Settings
Manage Runtime Secrets
Build RAG Pipelines
MCP integration
Environment Variables
Handle Errors
Approve Tool Calls
Work with Canvas
Monitoring & Observability
Reference
CLI Reference
Deploy Agent Stack
Agent Stack Deployment Guide
Connect CLI to Remote Server
Custom UI Integration
Getting Started
Architecture guide
A2A Client Integration
Agent Requirements
Platform API Client
Error Handling
Agent Responses
User Messages
Permissions and Tokens
Experimental
MCP Connectors
Community
Contribute
Discord
GitHub
stable
Agent Stack home page
Agent Stack
stable
Search...
⌘K
Ask AI
Discord
GitHub
GitHub
Search...
Navigation
ToolCallExtensionMetadata
ToolCallExtensionMetadata
Copy page
Copy page
Python SDK Reference
/
A2A Extensions
/
Tool Extensions
/ ToolCallExtensionMetadata
Copy
Ask AI
from
agentstack_sdk.a2a.extensions.tools
import
ToolCallExtensionMetadata
Bases:
BaseModel
⌘I
Assistant
Responses are generated using AI and may contain mistakes.