Playwright CLI vs Playwright MCP: Key Differences for Claude Code Users

Developers using Claude Code for browser test automation have two main options: Playwright MCP, a Model Context Protocol server, and the newer Playwright CLI, a standalone command-line tool built for agents with shell access. Both tools enable the same browser interactions — navigation, clicking, form filling, and state verification — but differ significantly in how page state is handled and fed back into the model's context. Playwright MCP injects full accessibility trees and screenshots directly into the conversation, making it the only viable option for sandboxed environments like Claude Desktop that lack terminal access. Playwright CLI, by contrast, writes compact YAML snapshots to disk and allows Claude to read only the relevant lines, which can reduce token consumption during longer test-writing sessions. Choosing the wrong tool for a given environment or workflow can result in unnecessary token costs and integration friction, particularly in CI pipelines where CLI-based approaches tend to perform better.