Akshay Parkhi's Weblog

The Agent Loop Iceberg — 10 Hard Problems Hiding Beneath the Simple Loop

The basic agent loop — LLM call, tool execution, observe result, repeat — is maybe 10% of a production agent’s code. The other 90% is making it reliable, resumable, extensible, and production-grade. After tracing through real agent source code, here are the ten hard problems hiding beneath the surface that nobody shows you in tutorials.