Overview
dev-browser is an open-source frontend skill for Claude Code and compatible agents, published by code-yeongyu. Its author describes it as: “Browser automation with persistent page state. Use when users ask to navigate websites, fill forms, take screenshots, extract web data, test web apps, or automate browser workflows. Trigger phrases include "go to [url…”. The project has 69k stars on GitHub and ships custom license terms, so review them before reuse. Add it to your setup with `git clone https://github.com/code-yeongyu/oh-my-openagent ~/.claude/skills/dev-browser`.
What dev-browser does
Browser automation that maintains page state across script executions. Write small, focused scripts to accomplish tasks incrementally. Once you've proven out part of a workflow and there is repeated work to be done, you can write a script to do the repeated work in a single execution.
Best for
What’s inside
The SKILL.md for dev-browser is organised into these sections:
- Choosing Your Approach
- Setup
- Standalone Mode (Default)
- Extension Mode
- Writing Scripts
- Key Principles
- Workflow Loop
- No TypeScript in Browser Context
- Scraping Data
- Client API
- Waiting
- Inspecting Page State
Installation
Add dev-browser to your agent with:
git clone https://github.com/code-yeongyu/oh-my-openagent ~/.claude/skills/dev-browserReview a skill’s source before installing it — skills can instruct your agent to run commands. This command comes from the skill’s public repository, which is the source of truth for setup steps. New to skills? Read how to install Claude Code skills.
Supported agents
- Codex — declared in the repository topics
- Cursor — declared in the repository topics
- OpenCode — declared in the repository topics
License
code-yeongyu has not declared a standard open-source license for this repository (Other). Confirm the terms with the author before reusing it.
Strengths
- Ships in code-yeongyu/oh-my-openagent, an established project with 68,551 GitHub stars
- Works with Codex, Cursor, OpenCode
- Actively maintained — repository updated in the last 30 days
- Its repository gained 1,660 GitHub stars over the last 31 days
Things to check
- No license declared — confirm terms with the author before reuse
Author
Topics
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Frequently asked questions
- What does dev-browser do?
- Browser automation with persistent page state. Use when users ask to navigate websites, fill forms, take screenshots, extract web data, test web apps, or automate browser workflows. Trigger phrases include "go to [url]", "click on", "fill out the form", "take a screenshot", "scrape", "automate", "test the website", "log into", or any browser interaction request.
- How do I install dev-browser?
- Run git clone https://github.com/code-yeongyu/oh-my-openagent ~/.claude/skills/dev-browser in your agent, then reload your skills. Review the source at https://github.com/code-yeongyu/oh-my-openagent before installing.
- Is dev-browser free to use?
- dev-browser is publicly available on GitHub, but code-yeongyu has not declared a standard open-source license (Other). Confirm the terms with the author before reusing it.
- Which agents does dev-browser work with?
- dev-browser lists Codex, Cursor, and OpenCode — named in its SKILL.md, its plugin marketplace or its repository topics. Skills use the portable SKILL.md format, so other agents that read that format may load it too.
- Where does dev-browser come from?
- dev-browser ships inside code-yeongyu/oh-my-openagent, a repository that contains 49 catalogued skills in total. The repository's 68,551 GitHub stars apply to that whole collection, not to this skill on its own.