Hebbia

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?

What is LlamaIndex, and what connects Documents, Nodes, Indexes, and QueryEngines?

Why a circuit breaker around the primary LLM provider is more than a fancy retry

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

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

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

When should automated eval escalate to human review in a production LLM product?

Where sparse (BM25/SPLADE) retrieval reliably beats dense embeddings