CLI for agents

Playwright CLI

Playwright command-line interface shipped with skills, aimed at coding agents that prefer concise CLI calls over large MCP tool schemas.

Why it is useful

Lower token cost than the MCP server for agents that only need a few browser actions per task.

CLI for agents
agent-browser
Native Rust CLI that gives an agent a persistent browser: snapshot returns the page as compact text with element refs, and the agent acts on refs one command at a time.
Library
Browser Use
Open-source browser agent library that runs locally with any LLM; a paid cloud adds hosted browsers.
CLI for agents
ccusage
CLI that analyses coding-agent token usage and cost from local session data, with daily, monthly and session reports.
MCP server
Chrome DevTools MCP
Lets a coding agent control and inspect a live Chrome through DevTools, as an MCP server or a CLI, for automation, debugging and performance traces.
Skill
ego lite (ego-browser skill)
The ego-browser agent skill and its open-source Node.js CDP harness for the ego lite browser: the agent runs ego-browser skill for a version-matched guide, then sends JavaScript that calls snapshot, fill, click, wait, navigate and capture inside its own isolated Space.
Skill pack
gstack
Garry Tan's skill pack that turns Claude Code and other agents into a virtual engineering team: office hours, CEO and eng plan reviews, design review, code review, QA with a real browser, security audit and ship.