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The Agent Loop Architecture
Durable orchestration is the essential foundation for building reliable agent loops, according to an analysis of modern agentic system architectures.
What: The article explains the 'agent loop' architecture, identifying why loops often fail and detailing how durable execution layers can manage state and error recovery to allow agents to build their own skills autonomously.
Why it matters: Reliable agents require stable execution environments that can survive failures at any point in a multi-step cycle, a requirement that traditional stateless web architectures struggle to meet.
Deep dive
- Agent loops act as the primitive unit for autonomous systems, necessitating robust orchestration.
- Durability must be a property of the execution layer, not just the individual agent logic.
- Orchestration frameworks provide the fault tolerance required for long-running processes.
- Agents capable of skill acquisition require state management that persists through loop interruptions.
- Failure in agent systems typically occurs at the boundary between the model's inference and the underlying infrastructure.
Decoder
- Durable orchestration: A system design pattern that ensures a process (like an agent loop) can reliably pause, resume, and recover from failures without losing its state.
Original article
The Agent Loop Architecture
Everyone's asking "WTF is a loop?" Here's the question nobody's asking: what runs the loop? The AI discourse has converged on loops as a core primitive of agentic systems.
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