my agent stack is one smart part and a pile of dumb reliable parts

Reddit r/AI_Agents News
ai-agents agent-architecture tools deterministic gamma best-practices automation

Summary

The author shares their experience building AI agent stacks with one smart AI component for reasoning and reliable deterministic tools to prevent failures, emphasizing the value of minimizing model discretion in mundane tasks.

after a lot of trial and error my agent setups all look the same now: one genuinely smart reasoning step, surrounded by boring deterministic tools that never surprise me. the agent decides what to do. fetching, parsing, and the final write-up are handled by dumb reliable pieces, including an ai document generator, Gamma, that turns the agent's structured output into a clean report. every time i let the smart part also do a boring part, that's where it broke. minimize where the model has discretion, maximize where it's constrained. for agent builders: how much of your stack is actually the model versus deterministic glue around it?
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