Agent skill

Browser Use

by Prismer-AI in Prismer-AI/PrismerCloud

LLM-driven browser automation via the pre-installed browser-use library (chromium already in the image).

MITAuto-check passedProductivity & Automation

Install Browser Use

skills CLI

$ npx skills add Prismer-AI/PrismerCloud --skill browser-use -a claude-code

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

GitHub CLI

$ gh skill install Prismer-AI/PrismerCloud browser-use --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/Prismer-AI/PrismerCloud.git skills-src && mkdir -p .claude/skills && cp -r skills-src/sdk/cloud/catalog/skills/browser-use .claude/skills/browser-use && 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/

Paste into Claude Code

Install the "browser-use" agent skill from https://github.com/Prismer-AI/PrismerCloud/tree/main/sdk/cloud/catalog/skills/browser-use into .claude/skills/browser-use/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-use", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/Prismer-AI/PrismerCloud/tree/main/sdk/cloud/catalog/skills/browser-use

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add Prismer-AI/PrismerCloud --skill browser-use -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install Prismer-AI/PrismerCloud browser-use --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Prismer-AI/PrismerCloud.git skills-src && mkdir -p .agents/skills && cp -r skills-src/sdk/cloud/catalog/skills/browser-use .agents/skills/browser-use && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "browser-use" agent skill from https://github.com/Prismer-AI/PrismerCloud/tree/main/sdk/cloud/catalog/skills/browser-use into .agents/skills/browser-use/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-use", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Prismer-AI/PrismerCloud --skill browser-use -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install Prismer-AI/PrismerCloud browser-use --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Prismer-AI/PrismerCloud.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/sdk/cloud/catalog/skills/browser-use .cursor/skills/browser-use && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "browser-use" agent skill from https://github.com/Prismer-AI/PrismerCloud/tree/main/sdk/cloud/catalog/skills/browser-use into .cursor/skills/browser-use/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-use", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/Prismer-AI/PrismerCloud.git --path sdk/cloud/catalog/skills/browser-use

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add Prismer-AI/PrismerCloud --skill browser-use -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install Prismer-AI/PrismerCloud browser-use --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Prismer-AI/PrismerCloud.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/sdk/cloud/catalog/skills/browser-use .gemini/skills/browser-use && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "browser-use" agent skill from https://github.com/Prismer-AI/PrismerCloud/tree/main/sdk/cloud/catalog/skills/browser-use into .gemini/skills/browser-use/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-use", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install Prismer-AI/PrismerCloud browser-use

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add Prismer-AI/PrismerCloud --skill browser-use -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/Prismer-AI/PrismerCloud.git skills-src && mkdir -p .github/skills && cp -r skills-src/sdk/cloud/catalog/skills/browser-use .github/skills/browser-use && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "browser-use" agent skill from https://github.com/Prismer-AI/PrismerCloud/tree/main/sdk/cloud/catalog/skills/browser-use into .github/skills/browser-use/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-use", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Prismer-AI/PrismerCloud --skill browser-use -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install Prismer-AI/PrismerCloud browser-use --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Prismer-AI/PrismerCloud.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/sdk/cloud/catalog/skills/browser-use .opencode/skills/browser-use && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "browser-use" agent skill from https://github.com/Prismer-AI/PrismerCloud/tree/main/sdk/cloud/catalog/skills/browser-use into .opencode/skills/browser-use/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "browser-use", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: browser-use
GitHub stars: 1.6k
Token cost: ~1.1k tokens
SKILL.md length: 298 words
Files: 1
Skills in repo: 88
Repo updated: Sep 30, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

LLM-driven browser automation via the pre-installed browser-use library (chromium already in the image).

The task needs to interact with web pages beyond a single fetch — multi-step navigation
SKILL.md covers When to use, How to run, Task-writing rules (from… and Environment facts, plus 1 more section
Calls python; needs PRISMER_API_KEY
Structured data extraction

What it does

Browser Use is an agent skill from Prismer-AI/PrismerCloud. LLM-driven browser automation via the pre-installed browser-use library (chromium already in the image). Use whenever the task needs to interact with web pages beyond a single fetch — multi-step navigation, form filling, clicking, scrolling, structured data extraction, screenshots, or tasks the plain web tools can't complete. Runs as a Python script against the built-in chromium; LLM goes through the Prismer gateway (no external LLM key needed).

Its SKILL.md is about 1.1k 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. It works with Python. The licence is MIT.

When your agent uses it

The task needs to interact with web pages beyond a single fetch — multi-step navigation
Structured data extraction
Tasks the plain web tools cant complete

Example prompts

“/browser-use”

Requirements

Python 3
A credential in PRISMER_API_KEY

What it can do on your machine

Read from SKILL.md and the folder at commit e5d9444. 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
Shell commands in SKILL.md call:
- python
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 these keys or tokens, usually read from environment variables:
- PRISMER_API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Browser Use loads about 1.1k tokens when it runs. Until then it costs about 115 tokens; SKILL.md has 298 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~115
When it runs · the whole SKILL.md, loaded when a task matches: ~1.1k

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

The full file from Prismer-AI/PrismerCloud at commit e5d9444, republished under its MIT licence (© Prismer-AI). 298 words, ~1,100 tokens.

Download SKILL.mdSave it as .claude/skills/browser-use/SKILL.md (or your agent's skills folder).

name: browser-use
description: LLM-driven browser automation via the pre-installed browser-use library (chromium already in the image). Use whenever the task needs to interact with web pages beyond a single fetch — multi-step navigation, form filling, clicking, scrolling, structured data extraction, screenshots, or tasks the plain web tools can't complete. Runs as a Python script against the built-in chromium; LLM goes through the Prismer gateway (no external LLM key needed).
scope: common

Browser-Use (Web Automation)

The sandbox image ships browser-use (installed in /home/user/.venv) and a full chromium build (playwright). This skill drives them: write a short Python script with Agent(task=..., llm=..., browser=...), run it, report the result.

When to use

Multi-step web tasks: search → open → extract → compare → download
Form filling / login flows / clicking through pages
Structured extraction (tables, listings, prices) that a single fetch can't parse
Screenshots / visual confirmation of a page state
Anything needing JS-rendered content (SPA pages the fetch tools miss)

For a single plain fetch, prefer the existing web tools (lighter). Reach for browser-use when they come back empty or the task is interactive.

How to run

bash

# chromium executable (version dir may change — resolve dynamically):
CHROME="$(find /home/user/.cache/ms-playwright -name chrome -type f | head -1)"

# LLM = our gateway (OpenAI-compatible). PRISMER_BASE_URL / PRISMER_API_KEY
# are already in the environment; never hardcode them in the script.
cat > /tmp/bu_task.py <<'PY'
import os, asyncio
from browser_use import Agent, ChatOpenAI, Browser

async def main():
    llm = ChatOpenAI(
        base_url=f"{os.environ['PRISMER_BASE_URL']}/api/v1",
        api_key=os.environ['PRISMER_API_KEY'],
        model=os.environ.get('PRISMER_MODEL', 'deepseek-v4-flash'),
        temperature=0.0,
        # REQUIRED for the Prismer gateway: browser-use defaults to forcing
        # JSON-schema structured output (response_format=json_schema) which
        # our upstream models reject with 400 "response_format type
        # unavailable" (verified 2026-08-07). Disable it; the agent still
        # extracts via its normal flow.
        dont_force_structured_output=True,
    )
    browser = Browser(
        headless=True,
        executable_path=os.environ['CHROME'],
    )
    agent = Agent(
        task="<TASK>",  # be specific: steps, URLs, what to extract, output format
        llm=llm,
        browser=browser,
    )
    history = await agent.run(max_steps=30)
    print("RESULT:", history.final_result())
    print("URLS:", history.urls())
    print("ERRORS:", history.errors())
    await browser.close()

asyncio.run(main())
PY
CHROME="$CHROME" /home/user/.venv/bin/python /tmp/bu_task.py
rm -f /tmp/bu_task.py

Task-writing rules (from browser-use docs)

Be specific: "Go to https://…, use extract with query 'first 3 quotes and their authors', save to quotes.csv via write_file" — open-ended tasks fail.
Name actions: "use search action for …", "use click to open first result in a new tab", "use send_keys with 'Tab Tab Enter'" — the agent maps these to its built-in tools.
Error recovery: if navigation is blocked, fall back to a search engine; if a click fails, use keyboard navigation (send_keys).
max_steps: default 100; keep 30 for focused tasks, raise for long flows.
Anti-bot: if a page blocks automation, try use_cloud=True — NOT available here (no Browser-Use Cloud key). Fall back to search/cache.

Environment facts

Item	Value
Python	`/home/user/.venv/bin/python` (browser-use installed here)
Chromium	`$(find /home/user/.cache/ms-playwright -name chrome -type f \| head -1)`
LLM	Prismer gateway (`PRISMER_BASE_URL` + `PRISMER_API_KEY`, OpenAI-compatible)
Model	`PRISMER_MODEL` env (default `deepseek-v4-flash`) — adjust for the task
Telemetry	browser-use collects anonymous telemetry by default — set `ANONYMIZED_TELEMETRY=false`

Output contract

Report to the user: history.final_result() (the extracted answer), the URLs visited, and any errors. If history.is_successful() is False, say so plainly with history.errors() — do not invent a completion. Attach screenshots (history.screenshot_paths()) as task assets when they matter.

Files

Just SKILL.md in sdk/cloud/catalog/skills/browser-use of Prismer-AI/PrismerCloud.

Open the folder on GitHubat commit e5d9444

Compare with similar skills

Browser Use 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 Use compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Browser Use this skillPrismer-AI/PrismerCloud	1.6k	—	~1.1k	Automated safety check: Pass	MIT	9 days ago
Browser Use Terminalbrowser-use/terminal	652	—	~2.1k	Automated safety check: Pass	MIT	1 mo ago
Evoui BrowserSalmonbird/evoui-browser	100	—	~4.5k	Automated safety check: Pass	Apache-2.0	1 mo ago
Browser Automation Edge Casesaden-hive/hive	11k	—	~1.8k	Automated safety check: Pass	MIT	today
Skyvern Browser AutomationSkyvern-AI/skyvern	23k	—	~1.9k	Automated safety check: Pass	AGPL-3.0	today
AI Search Hubminsight-ai-info/AI-Search-Hub	1.3k	—	~1.3k	Automated safety check: Pass	None	5 mo ago

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Questions about Browser Use

What does Browser Use do?

LLM-driven browser automation via the pre-installed browser-use library (chromium already in the image). Browser Use is an agent skill from Prismer-AI/PrismerCloud. LLM-driven browser automation via the pre-installed browser-use library (chromium already in the image).

When should I use Browser Use?

Browser Use fits situations like: the task needs to interact with web pages beyond a single fetch — multi-step navigation; structured data extraction; tasks the plain web tools cant complete.

How do I install Browser Use in Claude Code?

Run `npx skills add Prismer-AI/PrismerCloud --skill browser-use -a claude-code`. Or copy the skill folder (sdk/cloud/catalog/skills/browser-use in Prismer-AI/PrismerCloud) into .claude/skills/browser-use in your project. Claude Code loads it when a task matches its description.

How do I install Browser Use in Codex?

Run `npx skills add Prismer-AI/PrismerCloud --skill browser-use -a codex`. Or copy the skill folder (sdk/cloud/catalog/skills/browser-use in Prismer-AI/PrismerCloud) into .agents/skills/browser-use in your project. Codex loads it when a task matches its description.

Can I use Browser Use 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 Prismer-AI/PrismerCloud --skill browser-use -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-use, .gemini/skills/browser-use, .github/skills/browser-use and .opencode/skills/browser-use in your project.

What does Browser Use need to run?

Going by SKILL.md and its folder, Browser Use needs the command-line tools its instructions call (python) and credentials named PRISMER_API_KEY. Our summary lists: Python 3; A credential in PRISMER_API_KEY.

Does Browser Use 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 Use 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 Use use?

Browser Use is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Browser Use use?

About 1.1k tokens (SKILL.md is roughly 4.4k 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 Use?

Skills that share tags, products or a category with Browser Use: Browser Use Terminal (browser-use/terminal, 652 stars), Evoui Browser (Salmonbird/evoui-browser, 100 stars), Browser Automation Edge Cases (aden-hive/hive, 11k stars) and Skyvern Browser Automation (Skyvern-AI/skyvern, 23k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Browser Use?

Prismer-AI (a GitHub organization) maintains it in Prismer-AI/PrismerCloud, which has 1,555 GitHub stars. The repository holds 88 skills in this directory. The repository was last updated on September 30, 2026.

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

Browser Use

Install Browser Use

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Browser-Use (Web Automation)

When to use

How to run

Task-writing rules (from browser-use docs)

Environment facts

Output contract

Files

Compare with similar skills

Similar skills

Browser Use Terminal

Evoui Browser

Browser Automation Edge Cases

Skyvern Browser Automation

AI Search Hub

Browser Tools

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Questions about Browser Use

Install Browser Use

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Browser-Use (Web Automation)

When to use

How to run

Task-writing rules (from browser-use docs)

Environment facts

Output contract

Files

Compare with similar skills

Similar skills

More from Prismer-AI/PrismerCloud

Related

Questions about Browser Use