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Unraid MCP

Unraid MCP

by lemanjo
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Hybrid

Next Unraid serversSubscription event

unraid_v4371_next_servers_subscription
Read-onlyIdempotent

Waits for the next server event from a GraphQL subscription, returns a single bounded payload, then disconnects to limit data use.

Instructions

Wait for the next event from this fixed GraphQL subscription, return one bounded payload, then disconnect.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "unraid_v4371_next_servers_subscription"
  }
}

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.1

TDQS

A3.6/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The description adds meaningful behavioral context beyond the annotations: it blocks waiting for the next event, returns a bounded payload, and disconnects automatically. These traits are not fully captured by readOnlyHint=true or idempotentHint=true. It does not disclose timeout behavior or what happens if no event arrives, but the core lifecycle is transparent.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The entire description is one tight, front-loaded sentence. Every clause adds value: waiting, bounded payload, and disconnecting. There is no redundant or filler content.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no output schema, the description carries the burden of explaining the return value, but it only says 'one bounded payload' without describing the payload's structure or content. It also omits potential wait duration or cancellation behavior. For a simple zero-parameter subscription tool it is adequate, but not fully complete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool has zero parameters and the input schema is empty with 100% schema description coverage. The description's phrase 'fixed GraphQL subscription' reinforces that no arguments are needed. The baseline for zero-parameter tools is 4, and nothing here reduces that.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action: wait for the next event from a fixed GraphQL subscription, return one bounded payload, then disconnect. This conveys a specific one-shot behavior that matches the tool name. However, it does not explicitly distinguish this subscription from the many other next_* sibling subscriptions beyond relying on the tool name/title.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no explicit guidance on when to use this tool versus the many sibling subscriptions such as next_display_subscription or next_array_subscription. The one-shot 'then disconnect' behavior implies a use case, but no conditions, exclusions, or alternatives are mentioned.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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