Agent skill

Browser Automation

by ynulihao in ynulihao/AgentSkillOS

Non-testing browser automation - web scraping, form filling, screenshot capture, PDF generation, workflow automation.

No licenceAuto-check passedProductivity & Automation

Install Browser Automation

skills CLI
$ npx skills add ynulihao/AgentSkillOS --skill browser-automation -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install ynulihao/AgentSkillOS browser-automation --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/ynulihao/AgentSkillOS.git skills-src && mkdir -p .claude/skills && cp -r skills-src/data/skill_seeds/browser-automation .claude/skills/browser-automation && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
browser-automation
GitHub stars
617
Token cost
~2.2k tokens
SKILL.md length
371 words
Files
1
Skills in repo
26
Repo updated
First seen
Licence
None found

At a glance

Non-testing browser automation - web scraping, form filling, screenshot capture, PDF generation, workflow automation.

  • Works in 12 steps: Playwright Automation → Testing Frameworks → Web Scraping → …
  • Tasks that involve Browser automation
  • SKILL.md covers Expertise Areas, Code Examples, Selector Strategies and Best Practices, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Browser Automation is an agent skill from ynulihao/AgentSkillOS. Non-testing browser automation - web scraping, form filling, screenshot capture, PDF generation, workflow automation. For TESTING with Playwright, use e2e-playwright skill instead. Activates for web scraping, form automation, screenshot, PDF, headless browser, Puppeteer, Selenium, automation scripts, data extraction.

Its SKILL.md is about 2.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Productivity & Automation, covering Browser automation, Browser testing and Web scraping. It works with Playwright, Puppeteer and Selenium. The repository describes itself as: Build your agent from 200,000+ skills via skill RETRIEVAL & ORCHESTRATION.

When your agent uses it

  • Tasks that involve Browser automation
  • Tasks that involve Browser testing
  • Tasks that involve Web scraping

Example prompts

  • “/browser-automation”

Workflow steps

12 steps, taken from the step headings in SKILL.md.

  1. Playwright Automation
  2. Testing Frameworks
  3. Web Scraping
  4. Form Automation
  5. CSS Selectors (Preferred)
  6. XPath (When CSS isn't enough)
  7. Playwright-Specific
  8. Use Stable Selectors
  9. Add Explicit Waits
  10. Handle Errors Gracefully
  11. Clean Up Resources
  12. Use Page Object Model (POM)

What it can do on your machine

Read from SKILL.md and the folder at commit c3cfae1. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are typescript).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Browser Automation loads about 2.2k tokens when it runs. Until then it costs about 84 tokens; SKILL.md has 371 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~84
When it runs · the whole SKILL.md, loaded when a task matches
~2.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 371 words (~2,197 tokens).

“Expert in browser automation using Playwright, Puppeteer, and Selenium. Specializes in UI testing, web scraping, form automation, and automated workflows.”

— opening of SKILL.md by ynulihao
name
browser-automation

Read the full SKILL.md on GitHub

Files

Just SKILL.md in data/skill_seeds/browser-automation of ynulihao/AgentSkillOS.

Open the folder on GitHubat commit c3cfae1

Compare with similar skills

Browser Automation next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Browser Automation compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Browser Automation this skillynulihao/AgentSkillOS617—~2.2kAutomated safety check: PassNone
Cloudflare Browser Renderingeinverne/dotfiles121—~4.9kAutomated safety check: PassGPL-3.0
Open BrowserJasonHonKL/Openbrowser114—~1.6kAutomated safety check: PassMIT
Agent Browseroxylabs/agent-skills875—~3kAutomated safety check: PassMIT
Agenttinyfish-io/tinyfish-cookbook2.2k—~1.1kAutomated safety check: PassMIT
Browser Automationdavila7/claude-code-templates32k3 repos~569Automated safety check: PassMIT

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  • Guide for implementing Cloudflare Browser Rendering - a headless browser automation API for screenshots, PDFs, web scraping, and testing.

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    Browser automation powers web testing, scraping, and AI agent interactions.

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Questions about Browser Automation

What does Browser Automation do?

Non-testing browser automation - web scraping, form filling, screenshot capture, PDF generation, workflow automation. Browser Automation is an agent skill from ynulihao/AgentSkillOS. Non-testing browser automation - web scraping, form filling, screenshot capture, PDF generation, workflow automation.

When should I use Browser Automation?

Browser Automation fits situations like: tasks that involve Browser automation; tasks that involve Browser testing; tasks that involve Web scraping.

How do I install Browser Automation in Claude Code?

Run `npx skills add ynulihao/AgentSkillOS --skill browser-automation -a claude-code`. Or copy the skill folder (data/skill_seeds/browser-automation in ynulihao/AgentSkillOS) into .claude/skills/browser-automation in your project. Claude Code loads it when a task matches its description.

How do I install Browser Automation in Codex?

Run `npx skills add ynulihao/AgentSkillOS --skill browser-automation -a codex`. Or copy the skill folder (data/skill_seeds/browser-automation in ynulihao/AgentSkillOS) into .agents/skills/browser-automation in your project. Codex loads it when a task matches its description.

Can I use Browser Automation in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ynulihao/AgentSkillOS --skill browser-automation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/browser-automation, .gemini/skills/browser-automation, .github/skills/browser-automation and .opencode/skills/browser-automation in your project.

What does Browser Automation need to run?

SKILL.md names no scripts, command-line tools or credentials: Browser Automation is instructions for the agent only.

Does Browser Automation access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Browser Automation safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Browser Automation use?

No licence was found for Browser Automation or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Browser Automation use?

About 2.2k tokens (SKILL.md is roughly 8.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Browser Automation?

Skills that share tags, products or a category with Browser Automation: Cloudflare Browser Rendering (einverne/dotfiles, 121 stars), Open Browser (JasonHonKL/Openbrowser, 114 stars), Agent Browser (oxylabs/agent-skills, 875 stars) and Agent (tinyfish-io/tinyfish-cookbook, 2.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Browser Automation?

ynulihao (a GitHub user) maintains it in ynulihao/AgentSkillOS, which has 617 GitHub stars. The repository holds 26 skills in this directory. The repository was last updated on March 7, 2026.

Source: ynulihao/AgentSkillOS on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.