Overview
ultimate-browsing is an open-source workflow skill for Claude Code and compatible agents, published by code-yeongyu. Its author describes it as: “Renders, drives, and screenshots web pages: JS-rendered sources, clicks and forms, persistent logins, WAF-blocked hosts (platform-native readers, stealth Chrome), and the browsing lane of a research run, with screensh…”. 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/ultimate-browsing`.
What ultimate-browsing does
Web access for everything a plain fetch cannot finish: a page that renders in JS, a click or a form, a screenshot, a login that must persist across pages, or a host that blocks generic fetchers (WAF / 403 / Cloudflare). Start at the cheapest tier that can do the job and climb only when it cannot:
What’s inside
The SKILL.md for ultimate-browsing is organised into these sections:
- PHASE 0 — ROUTE FIRST (MANDATORY)
- Tier 1 — insane-search (headless extraction)
- Escalate to Tier 1.5 or Tier 2 when
- Tier 1.5 — agent-reach (platform-native readers)
- Tier 2 — a real browser (real interaction)
- Tier 2a — kernel browser (default)
- Tier 2b — Chrome stealth (blocked or logged-in pages)
- Cookie login (cross-platform)
- Reference docs
- Environment variables
- Anti-patterns
Installation
Add ultimate-browsing to your agent with:
git clone https://github.com/code-yeongyu/oh-my-openagent ~/.claude/skills/ultimate-browsingReview 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 69,248 GitHub stars
- Works with Codex, Cursor, OpenCode
- Actively maintained — repository updated in the last 30 days
- Its repository gained 2,357 GitHub stars over the last 52 days
Things to check
- No license declared — confirm terms with the author before reuse
Author
Topics
Frequently asked questions
- What does ultimate-browsing do?
- Renders, drives, and screenshots web pages: JS-rendered sources, clicks and forms, persistent logins, WAF-blocked hosts (platform-native readers, stealth Chrome), and the browsing lane of a research run, with screenshots as provenance. Not for plain search or unblocked static fetch.
- How do I install ultimate-browsing?
- Run git clone https://github.com/code-yeongyu/oh-my-openagent ~/.claude/skills/ultimate-browsing in your agent, then reload your skills. Review the source at https://github.com/code-yeongyu/oh-my-openagent before installing.
- Is ultimate-browsing free to use?
- ultimate-browsing 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 ultimate-browsing work with?
- ultimate-browsing 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 ultimate-browsing come from?
- ultimate-browsing ships inside code-yeongyu/oh-my-openagent, a repository that contains 49 catalogued skills in total. The repository's 69,248 GitHub stars apply to that whole collection, not to this skill on its own.