02 Oct 2026 · 6 min read
agents
I Built the Agent From Part 1. It's 200 Lines and It Still Broke Once.
Part 2 of the AI agent architecture series: a real MCP server, a real LangGraph graph, and the actual bug — a blog-dedup agent that catches exact-match duplicates fine and faceplants on the semantic case, with a 401 to prove it.
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