Pattern

Playwright MCP

Drive a browser through structured DOM operations — navigate, click elements, fill forms, take accessibility snapshots — rather than via screen coordinates.

Classification — Act + Observe (external). Tier 4 against real sites.

Full entry

The complete treatment — problem, how it works, when to use it, sources, and examples — lives in the volume below.

Vol. 03 The AI Agent Tools Catalog Workflow & Primitives

Browse the full pattern index or the catalog.