World's Fair 2025
Building Agents (the hard parts!) - Rita Kozlov, Cloudflare
Overview
This talk focuses on the practical challenges and components involved in building AI agents. It emphasizes that moving beyond simple AI augmentation to true automation requires a structured approach. The core idea is that agents need a client interface, an AI reasoning engine, workflow management for execution, and access to tools to perform actions.
Who should watch
- AI engineers and developers looking to build agentic workflows.
- Product Managers and builders interested in the next wave of AI-powered automation.
- Anyone facing the complexities of integrating AI tools and managing long-running, stateful agent processes.
- Developers exploring new standards like MCP for tool integration.
Key takeaways
- AI adoption is rapidly accelerating, with over 75% of knowledge workers and developers already using AI to augment their work, surpassing earlier predictions.
- The evolution of AI workloads is shifting from training to inference and now towards full automation via agents, unlocking significant productivity gains.
- Building an agent involves four key components: the client (interface), the AI (reasoning), workflows (execution logic), and tools (action capabilities).
- The MCP (Model-Centric Protocol) standard simplifies exposing APIs to LLMs for natural language interaction and has significantly improved LLMs' tool-calling abilities.
- Cloudflare's Agents SDK simplifies building MCP servers by providing built-in functionality for authentication, transport, state management via Durable Objects, and real-time communication.
- Workflow management is crucial for handling long-running tasks, human-in-the-loop approvals, and ensuring state persistence and retries, especially when dealing with asynchronous operations.
- Agents can be integrated with various clients, including Cursor, Claude, and ChatGPT, allowing users to interact with them through familiar interfaces.
- *The real missed headlines of MCPs was actually that LLMs became really really good at tool calling.*
Notable quotes
Rita Kozlov, VP of Product for Cloudflare's Developer Platform, highlighted that *agents are going to be even more meaningful but are already reshaping the way that we work.*
Kozlov noted that *the real missed headlines of MCPs was actually that LLMs became really really good at tool calling.*
Unofficial community note. Prefer the recording for nuance.