Is the Jacobiusmakes Diamond MCP server down?

mcp-registry/io.github.jacobiusmakes/diamond-mcp · v0.2.6

Also listed as glama/jacobiusmakes/diamond-mcp

Verdict. Jacobiusmakes Diamond MCP server answered 100% of Glimind's liveness checks over 30 days, better than 42% of MCP servers, with 579 ms median handshake and 0 outages in 90 days. Its agent-readiness grade is A (92/100) across 11 tools, costing an agent about 1,583 tokens to load. Checked every few minutes; no tool is ever called.

Data as of .

30-day measurements and how they compare with other MCP servers
MetricValueBetter than
Uptime, 30 days100%42% of MCP servers
Median handshake latency579 ms45% of MCP servers
p95 handshake latency2828 ms—
Checks in 30 days4,851—
Outages, 90 days0—
Median recovery——
Agent-readiness score92/100 (A)73% of MCP servers
Tools11—
Tool-list size for an agent~1,583 tokens57% of MCP servers
Days observed29—
healthy
Last checked 2026-10-26 18:10 UTC · handshake 250ms

As of 2026-10-26 18:10 UTC, the Jacobiusmakes Diamond MCP server is up with a Glimind reliability score of 100/100 (grade A). Over the last 30 days it answered 100% of Glimind's liveness checks.

uptime (30d checks)
100%
checks observed
4,867
outages (90d)
0
tools
11

Sourced diamond and gemology tools for AI assistants, with 90 encyclopedia entries.

Install Jacobiusmakes Diamond MCP server

Add to Cursor Add to VS Code

Claude Code

claude mcp add --transport http jacobiusmakes-diamond-mcp-server https://diamond-mcp.stienhardt.workers.dev/mcp

Claude Desktop · Windsurf · Cline (mcpServers JSON)

{
  "mcpServers": {
    "jacobiusmakes-diamond-mcp-server": {
      "type": "http",
      "url": "https://diamond-mcp.stienhardt.workers.dev/mcp"
    }
  }
}

Third-party server, listed as discovered. Review its source before installing.

Agent-readiness: A (92/100)

A (92/100): 0 error(s), 1 warning(s) across 11 tool(s); ~1,583 tokens of tool definitions.
Scores higher than 73% of 15,768 MCP servers Glimind has audited.
Its tool list costs an agent ~1,583 tokens per session — lighter than 60% of servers.
91 → 92 since 2026-10-17
no tool-poisoning patterns
Schemas100
Descriptions84
Safety hints100
Token cost100
Client compatibility70
Protocol100
Reliability100
Stability100

What to fix (2)

1 parameter(s) across 1 tool(s) have no description.

Add a "description" to each parameter with its format and an example ("ISO 8601 date, e.g. 2026-10-17"). This is the commonest cause of wrong arguments on the first call. How to fix →

Tools: compare_diamonds

No tool declares an outputSchema.

Declare outputSchema and return structuredContent (MCP 2025-06-18+). Agents can then parse results without guessing, and chain tools reliably. How to fix →

Get alerted

Get an email or webhook when this server's readiness drops by 10+ points, tool-poisoning text appears, or a tool breaks:

curl -X POST https://glimind.com/v1/subscriptions -H 'content-type: application/json' -d '{"tools":["mcp-registry/io.github.jacobiusmakes/diamond-mcp"],"email":"[email protected]"}'

Agents: watch_tool({"toolId": "mcp-registry/io.github.jacobiusmakes/diamond-mcp"}) over MCP.

Passed

Largest tool definitions

Static checks of the advertised tools/list (schema, descriptions, annotations, tool-poisoning patterns, names, size) plus observed protocol, uptime, latency and contract changes. Read-only: no tool is ever called. Weights: schema 15, docs 20, safety 15, efficiency 15, compatibility 15, protocol 5, reliability 10, stability 5. Token counts are estimates (~3.6 characters per token).

Operator? Fix these, then re-check live. Embed the readiness badge:

Markdown
[![MCP agent-readiness](https://glimind.com/v1/readiness/badge/mcp-registry%2Fio.github.jacobiusmakes%2Fdiamond-mcp.svg)](https://glimind.com/server/mcp-registry%2Fio.github.jacobiusmakes%2Fdiamond-mcp?ref=badge)
HTML
<a href="https://glimind.com/server/mcp-registry%2Fio.github.jacobiusmakes%2Fdiamond-mcp?ref=badge"><img src="https://glimind.com/v1/readiness/badge/mcp-registry%2Fio.github.jacobiusmakes%2Fdiamond-mcp.svg" alt="MCP agent-readiness"></a>
reStructuredText
.. image:: https://glimind.com/v1/readiness/badge/mcp-registry%2Fio.github.jacobiusmakes%2Fdiamond-mcp.svg
   :target: https://glimind.com/server/mcp-registry%2Fio.github.jacobiusmakes%2Fdiamond-mcp?ref=badge
   :alt: MCP agent-readiness

Tool-definition log

Glimind records every version of this server's tool definitions in a signed, append-only transparency log. Current manifest sha256:d61c15ec27766b2b…, first seen 2026-10-17, included at leaf 777 of 74,630. Version history · verify what your client received.

Tools (11)

Compare: most reliable knowledge servers · most reliable data servers · most reliable retrieval servers · most reliable search servers

Know before your agent calls it

Glimind tells agents whether a server is up right now and how to call it, then fails over to a live alternative when it isn't.

Add Glimind — free, no signup:

Add to Cursor Add to VS Code

Claude Code

claude mcp add --transport http glimind https://glimind.com/mcp

Claude Desktop · Windsurf · Cline (mcpServers JSON)

{
  "mcpServers": {
    "glimind": {
      "type": "http",
      "url": "https://glimind.com/mcp"
    }
  }
}

FAQ

Is the Jacobiusmakes Diamond MCP server down right now?

As of 2026-10-26 18:10 UTC, the Jacobiusmakes Diamond MCP server is up with a Glimind reliability score of 100/100 (grade A). Over the last 30 days it answered 100% of Glimind's liveness checks.

How many tools does Jacobiusmakes Diamond MCP server provide?

Jacobiusmakes Diamond MCP server advertises 11 tools, including about_stienhardt, compare_diamonds, define, dutch_marquise_definition, faceup_size.

How do I install Jacobiusmakes Diamond MCP server?

Point your MCP client at this streamable-http endpoint: https://diamond-mcp.stienhardt.workers.dev/mcp

Is the Jacobiusmakes Diamond MCP server safe to connect to an AI agent?

Glimind scanned all 11 tool definitions for tool-poisoning patterns — hidden or invisible characters, instructions that override the model, concealment from the user, requests to read credential or MCP config files, conversation exfiltration and cross-tool shadowing — and found none. This checks what the server tells the model, not what its code does; review the source before granting access to sensitive data.

Operator of Jacobiusmakes Diamond MCP server?

Status page: 90-day uptime, every outage and how long it lasted.

Claim this listing to get the Verified operator marker, a remediation checklist and owner analytics, or embed the live badge from any of the tool pages above. Maintainers: alerts, deploy attestation and monthly reports.

Status is an automated estimate from Glimind's liveness checks (handshake and tool listing only; no tool is ever called) and may lag or differ from your network. Glimind is not affiliated with this server or its operator. Operator? Request a correction or opt out at https://glimind.com/opt-out.

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