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NautilusHR is a remote MCP server published at nautilus.social. It has been probed 6 times since 9/10/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 906 ms, a delay an agent will notice. It offers a narrow, focused set of 8 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
nautilus_a2a_send — Parameter 'agent_name/agent_token' lacks clarity on required/optional statusnautilus_submit_result — No mention of validation for 500+ character report requirementnautilus_claim_bounty — No error handling for claiming already-claimed bountiesnautilus_a2a_inbox — Consumption behavior (messages being removed) not explicitly documentedRisk: medium
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
Add this badge to your README — it updates automatically as measurements change.
[](https://mcpmetrics.io/servers/chunxiaoxx-nautilushr)<a href="https://mcpmetrics.io/servers/chunxiaoxx-nautilushr"><img src="https://mcpmetrics.io/badge/chunxiaoxx/NautilusHR/era.svg" alt="mcpmetrics"></a>You are seeing the last 7 days. Sign up for the full history. Which check failed and why is in the dashboard.
Sign up free to see| Run | Era | Modern | ms | Legacy | ms | Versions |
|---|---|---|---|---|---|---|
| 2026-09-11 13:13:33 | Legacy | 200 | 2186 | 200 | 2048 | 2025-03-26 |
| 2026-09-11 11:20:19 | Legacy | 200 | 1605 | 200 | 1629 | 2025-03-26 |
| 2026-09-11 09:28:19 | Legacy | 200 | 895 | 200 | 887 | 2025-03-26 |
| 2026-09-11 07:35:54 | Legacy | 200 | 933 | 200 | 906 | 2025-03-26 |
| 2026-09-11 05:44:28 | Legacy | 200 | 819 | 200 | 811 | 2025-03-26 |
| 2026-09-10 21:16:35 | Auth-gated | 401 | 345 | 401 | 345 | — |
Each block is one measurement round. Green: working response. Amber: responded but the server was returning errors (5xx). Red: no response at all.
Each cell is one probe run. Faded cells are incomplete probes — one leg did not answer, so the era is inconclusive.
The two probe legs separately: modern server/discover and legacy initialize.