io.github.CloudCorpRecords/headlessstage

headlessstage

Is the io.github.CloudCorpRecords/headlessstage MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.

Browser automation: navigate, click, fill, screenshot and evaluate in a headless browser.

alive probed 2026-11-14 · unchanged since 2026-10-31

7tools

967tokens in Claude Opus 5.5

0.5 %of Claude's 200k window

0.4×the median server

175 msto initialize

3 msto list tools

Run it: npx -y @reneturcios/headlessstage@0.1.0 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: headlessstage 0.1.0
Capabilities: tools
Instructions: none
Of a 1M window: <0.1 % of a 1M context window
Count: 967 tokens in Claude Opus 5.5, exact, measured 2026-10-31. With the Claude Code prefix mcp__…__ on each tool name: 1.0k. The o200k_base estimate is 514. Counted again when the tool definitions change. Method.
Repository: https://github.com/CloudCorpRecords/headlessstage
Registry: active, updated 2026-10-31 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.88×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
puppeteer_screenshot	256	136	26 %
puppeteer_navigate	179	95	18 %
puppeteer_fill	126	67	13 %
puppeteer_select	124	66	13 %
puppeteer_evaluate	100	53	10 %

Other registry entries on npmjs.com, the ones next to this name; all of them.

Servers that mention automation or screenshot.

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.