TLDR · PROGRAMMING, DESIGN & DATA SCIENCE

WHAT WE WISH WE KNEW ABOUT BUILDING AI AGENTS

newsletter.posthog.com9 min read

Summary from the TLDR newsletter

The capabilities of agents are unquestionably valuable, but sometimes an MCP server is a better fit. A harness is not a moat - context is your advantage. Set up observability and evaluation from day one, as understanding user experience is critical to building a successful agent. It doesn't matter how 'cool' your capabilities are, as solving customer problems is the goal. Building an agent is a product engineering problem that requires talking to users, shipping features they want, and iteration.