Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add lisihao/Solar --skill browser-automationgit clone --depth 1 https://github.com/lisihao/SolarWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/lisihao/solar/browser-automation)<a href="https://agentmods.dev/skills/lisihao/solar/browser-automation"><img src="https://agentmods.dev/badge/skills/lisihao/solar/browser-automation.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00047 | $0.00511 |
| Opus 5 | $0.00023 | $0.00255 |
| Sonnet 5 | $0.00009 | $0.00102 |
| Haiku 4.5 | $0.00005 | $0.00051 |
Grade A, and why
browser scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
100% identical to browser — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Browser Automation
Automate browser interactions using Stagehand CLI with Claude.
First: Environment Selection (Local vs Remote)
The skill automatically selects between local and remote browser environments:
- If Browserbase API keys exist (BROWSERBASE_API_KEY and BROWSERBASE_PROJECT_ID in .env file): Uses remote Browserbase environment
- If no Browserbase API keys: Falls back to local Chrome browser
- No user prompting: The selection happens automatically based on available configuration
Setup (First Time Only)
Check setup.json in this directory. If setupComplete: false:
npm install # Install dependencies
npm link # Create global 'browser' command
Commands
All commands work identically in both modes:
browser navigate <url> # Go to URL
browser act "<action>" # Natural language action
browser extract "<instruction>" ['{}'] # Extract data (optional schema)
browser observe "<query>" # Discover elements
browser screenshot # Take screenshot
browser close # Close browser
Quick Example
browser navigate https://example.com
browser act "click the Sign In button"
browser extract "get the page title"
browser close
Mode Comparison
| Feature | Local | Browserbase |
|---|---|---|
| Speed | Faster | Slightly slower |
| Setup | Chrome required | API key required |
| Stealth mode | No | Yes |
| Proxy/CAPTCHA | No | Yes |
| Best for | Development | Production/scraping |
Best Practices
- Always navigate first before interacting
- View screenshots after each command to verify
- Be specific in action descriptions
- Close browser when done
Troubleshooting
- Chrome not found: Install Chrome or use Browserbase mode
- Action fails: Use
browser observeto discover available elements - Browserbase fails: Verify API key and project ID are set
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 4d ago First seen · 74 lines · 47 tokens per session scan A 9705b3b7bb8d
browser is a skill published in the GitHub repository lisihao/Solar (2 stars, last pushed 24d ago), licensed MIT. It adds 47 tokens to every session and 511 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to browser, differing in 0 lines, and is treated as a copy.
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