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What distinguishes an AI agent from a plain LLM call?

Describe the typical agent execution loop.

When is a fixed LCEL chain preferable to an agent loop, and what is the decisive question to ask?

List SWE-bench, AgentBench, GAIA, and TAU-bench: what they measure, their shared blind spots, and how to interpret agent benchmark numbers.

What LangGraph feature allows the agent loop to cycle back to an earlier node rather than terminating?

Which practices reflect the principle of least privilege applied to an agent's tool set?

Identify the memory bottleneck that emerges when your MoE server moves to 128k-token contexts.

Why the OpenAI Agents SDK keeps Agent, Handoff, and Runner as its only three primitives

RAG over a code repo can't find the exact function name a developer searches for: best fix?

Compare CrewAI, AutoGen, and LangGraph coordination models and their reliability tradeoffs