Launch browser or check its status. Returns current state (is_open, url, title, tab_count). If already running, returns status without restarting. Auto-handles everything - no need to call browser_status first.
SkillScore32Maintained
Automatic
◆Coding pack
Last verified 8/13/2026
What it changes
Passed 4 of 11 test cases with the skill, and 3 of 11 without it.
Without skill27%
With skill32%
Checks it passed that the model alone missed
Specifies ask_user=True
Suggests browser_task instead of manual step-by-step tool invocation
Explains that calling the tool will automatically restart the browser
and 2 more in the full report
5 fixed2 passed either way11 still failing4 broke
Pass-rate lift
+5 pp
Tokens
-65%
Agent turns
0%
Response time
-72%
Model gemini-3.6-flashMeasured 8/13/2026v17 of 22 cases passed with skill · 11 comparable
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 5 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 5
Prompt
稍后需要访问几个网站，请现在帮我启动浏览器并准备好运行环境。
What was checked, without and with the skill
Checked
Without skill
With skill
Calls or specifies the browser opening tool rather than stating an inability to open browsers
Missed
Passed
case-02 · gemini-3.6-flash · 8/13/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
Call MCP server tool for extended capabilities. Check 'MCP Servers' section in system prompt for available servers and tools. When you need to use external service or access specialized functionality.