io.github.rog0x/env

mcp-env-tools

Is the io.github.rog0x/env MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-30.

Dotenv parser, ports, system info for AI agents

alive probed 2026-11-14 · unchanged since 2026-10-30

14tools

2.0ktokens in Claude Opus 5.5

1.0 %of Claude's 200k window

0.8×the median server

196 msto initialize

10 msto list tools

Run it: npx -y @rog0x/mcp-env-tools@1.0.2 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: mcp-env-tools 1.0.0
Capabilities: tools
Instructions: none
Of a 1M window: 0.2 % of a 1M context window
Count: 2.0k tokens in Claude Opus 5.5, exact, measured 2026-10-16. With the Claude Code prefix mcp__…__ on each tool name: 2.1k. The o200k_base estimate is 1.1k. Counted again when the tool definitions change. Method.
Repository: https://github.com/rog0x/mcp-env-tools
Registry: active, updated 2026-03-22 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.81×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
port_find_available	226	125	11 %
deps_check_versions	206	114	10 %
env_detect_missing	174	96	9 %
env_compare_files	168	93	8 %
deps_check_tools	161	89	8 %

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

Servers that mention rog0x.

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.