io.github.jarbon/carbon-lite
Testers.ai CARBON Test Harness Lite
Is the Testers.ai CARBON Test Harness Lite MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-26.
Local QA workflows, test evidence, screenshot maps and confidence reports for AI coding agents.
alive probed 2026-11-14 · unchanged since 2026-10-26
- Bundle
- https://github.com/jarbon/carbon-lite/releases/download/mcp-v0.1.0/carbon-lite-mcp-0.1.0.mcpb (MCPB, for a client that installs bundles; probed in a container with the network off)
- Host
- github.com
- Reports itself as
- carbon-lite 0.1.0
- Capabilities
- prompts, tools
- Instructions
- 335 characters
- Of a 1M window
- 0.3 % of a 1M context window
- Count
- 3.2k tokens in Claude Opus 5.5, exact, measured 2026-10-26. With the Claude Code prefix mcp__…__ on each tool name: 3.3k. The o200k_base estimate is 1.7k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/jarbon/carbon-lite
- Website
- https://github.com/jarbon/carbon-lite/blob/main/mcp/README.md
- Registry
- active, updated 2026-10-04 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.92×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| carbon_update | 1 706 | 889 | 53 % |
| carbon_settings | 342 | 178 | 11 % |
| carbon_workflow | 207 | 108 | 6 % |
| carbon_demo | 178 | 93 | 6 % |
| carbon_screenshot | 175 | 91 | 5 % |
Compare this server with others.
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Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.