io.github.CloudCorpRecords/injectcheck

injectcheck

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

Scan what AI agents read for prompt injection: hidden unicode, comment instructions, exfil, lures.

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

2tools

577tokens in Claude Opus 5.5

0.3 %of Claude's 200k window

0.2×the median server

391 msto initialize

8 msto list tools

Run it: npx -y @reneturcios/injectcheck@0.1.19 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: injectcheck 0.1.19
Capabilities: tools
Instructions: none
Of a 1M window: <0.1 % of a 1M context window
Count: 577 tokens in Claude Opus 5.5, exact, measured 2026-10-27. With the Claude Code prefix mcp__…__ on each tool name: 597. The o200k_base estimate is 328. Counted again when the tool definitions change. Method.
Repository: https://github.com/CloudCorpRecords/injectcheck
Registry: active, updated 2026-10-26 · registry entry
Changes: 2 recorded, reachable in 2 of them. A row is added when the result, the tool count or the cost changes.

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.76×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
scan_text	324	184	56 %
scan_path	253	144	44 %

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

Servers that mention instructions or injection.

We add a row when the result changes. A server with no change keeps its last row.

Probed	Result	Init	Tools	Claude	o200k
2026-10-27 06:52	alive	199 ms	2	577	328
2026-10-24 06:30	alive	391 ms	2		328

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.