Agents
by Chip Huyen
Long-form essay on tools, planning, failure modes and evaluating agents.
The essay examines how agents use tools and planning, along with the challenges of evaluating them. It is a practical bridge between introductory definitions and decisions about a working system.
- Level
- Intermediate
- Models
- any
- Category
- Agents and harnesses
- Tags
- design-patterns
- Source date
- 2025-01-07
- Added
- 2026-10-18
- Last verified
- 2026-10-18
- Status
- ok
- Prerequisites
- Assumes basic LLM familiarity or the ability to read examples and configure a workflow.
- Subcategory
- agent design patterns
- Region
- West
- Original language
- en
- Access
- free
- Resource reuse
- closed: No general open-reuse grant established from the inspected page. Closed is the conservative index bucket, not a legal finding; the resource is publicly readable. Facet definitions
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