python-lambda

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Lambda-based tools for AgentCore Gateway.

Tools

• lookup_ip - Look up geolocation for an IP address
• get_random_user - Generate random user profile
• fetch_post - Fetch a post by ID

Gateway Integration

Tools are invoked via AgentCore Gateway. The tool name is passed in: context.client_context.custom["bedrockAgentCoreToolName"]

Format: {target_name}___{tool_name}

Adding New Tools

1. Define the tool function with the @tool("tool_name") decorator
2. Add the tool definition to mcp-defs.json in your agentcore project
3. The tool will be automatically routed by the handler