io.github.restspace/sitelooper

sitelooper

Is the io.github.restspace/sitelooper MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-27.

Record a browser flow once with a model, then compile it to a Playwright spec that needs no model.

alive probed 2026-11-14 · unchanged since 2026-10-27

17tools

6.5ktokens in Claude Opus 5.5

3.3 %of Claude's 200k window

2.6×the median server

451 msto initialize

21 msto list tools

Run it: npx -y sitelooper@0.7.0 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: sitelooper 0.7.0
Capabilities: tools
Instructions: 403 characters
Of a 1M window: 0.7 % of a 1M context window
Count: 6.5k tokens in Claude Opus 5.5, exact, measured 2026-10-28. With the Claude Code prefix mcp__…__ on each tool name: 6.7k. The o200k_base estimate is 3.9k. Counted again when the tool definitions change. Method.
Repository: https://github.com/restspace/sitelooper
Registry: active, updated 2026-10-22 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.68×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
rerecord	662	394	10 %
do	645	384	10 %
build_start	608	362	9 %
check	560	333	9 %
assert	551	328	8 %

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

Servers that mention playwright or browser.

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.