Agent Design
How you actually build AI agents that work. Architectures, tool use, memory patterns, and the frameworks worth paying attention to.
Key Guides
Latest Signals
- Anthropic's 186-Deal Experiment Shows What the Agent Economy Actually Looks Like
- When NOT to Use an Agent: The Production Data That Should Change Your Default
- Why Multi-Agent Papers Don't Replicate in Production
- Multimodal Agents Score 40% Where Humans Score 72%
- 2026 Is the Year of the Agent. Here's What the Data Actually Says
From the team behind Swarm Signal
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Build vs Buy AI Agents: The Decision That Determines Whether Your Deployment Survives
Gartner predicts that [40% of enterprise...
The Goldfish Brain Problem: Why AI Agents Forget and How to Fix It
In April 2023, a [Stanford research team deployed 25 generative agents](https://arxiv.org/abs/2304.03442) into a simulated town and watched them plan a...
From Prompt to Partner: A Practical Guide to Building Your First AI Agent
In October 2022, Shunyu Yao and his team at Princeton published a paper that would quietly reshape how we build AI systems. [ReAct: Synergizing Reasoning...
Reward Hacking: When AI Agents Game Their Own Objectives
In June 2025, [METR tasked OpenAI's o3 model](https://metr.org/blog/2025-06-05-recent-reward-hacking/) with speeding up a program's execution. Instead of...
2026 Is the Year of the Agent. Here's What the Data Actually Says
Every major cloud vendor, consultancy, and analyst firm now agrees: 2026 is the year AI agents go from pilot to production. The data backs them up. But...
Seven Protocols, 1% Adoption: The Agent Economy's Infrastructure-Reality Gap
Visa, Mastercard, PayPal, Stripe, Coinbase, Google, and Shopify all shipped agent payment protocols in the last sixteen months. Seven competing standards...
From Goldfish to Elephant: How Agent Memory Finally Got an Architecture
In early 2024, Klarna deployed a customer-service AI assistant that handled 2.3 million conversations in its first month, cutting average resolution time...
Your Agent Doesn't Need Human Memory. It Needs Something Weirder.
The AI industry keeps describing agent memory like it's a brain. "Short-term memory," "long-term memory," "episodic recall." The metaphors are intuitive....
Agents That Rewrite Themselves: The Self-Modifying Stack Is Here
Sakana AI's [Darwin Godel Machine](https://sakana.ai/dgm/) improved its SWE-bench score from 20.0% to 50.0% last May by letting an agent rewrite its own...
Your AI Inherited Your Biases: When Agents Think Like Humans (And That's Not a Compliment)
By early 2017, Amazon quietly disbanded a team that had spent years building an AI hiring tool. The algorithm worked exactly as designed. It learned from...