MCP Selection Lab
mcp remote · streamable-http · v0.5.1 · source: crawl
https://mcp-selection-lab-production.up.railway.app/mcp
https://github.com/ChanghuLiu/mcp-selection-lab
Benchmark MCP tool selection with metadata-only routing, collision, abstention, and holdout checks.
Works
100
Verified Oct 31, 2026 · p50 360 ms · p95 406 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'mcp-selection-lab' |
| tools_listed | 15 | pass | 3 tools |
| schema_complete | 15 | pass | 3 of 3 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 360 ms |
| latency_p95 | 5 | pass | p95 406 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (3)
| Name | Description | Schema |
|---|---|---|
selection_lab_info | Get free service capabilities, limits, privacy and connection details; does not scan a target. | typed |
scan_mcp_metadata | Create a free public report of MCP tool-description routing collisions. Reads discovery metadata (initialize/tools/list) only; never calls target business tools or spends funds. Use a public | typed |
get_selection_report | Read and agent-enrich an existing public scan report by id; no new target request or model call. | typed |
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[](https://app.agent-xm.com/a/io-github-changhuliu-mcp-selection-lab)
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