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robcerda

Oura MCP Server

by robcerda

get_ring_configuration

Retrieve the user's Oura ring details including hardware generation, color, design, size, firmware, and setup date.

Instructions

Get the user's ring(s): hardware generation, color, design, size, firmware and setup date.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4/5.0
Behavior3/5

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

No annotations are provided, so the description carries the full burden. It clearly indicates a read-only operation via 'Get' and lists returned fields, which is adequate for a simple getter. However, it does not disclose authentication requirements, potential absence of rings, or any other behavioral nuances that an agent might need to anticipate.

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 description is a single concise sentence that front-loads the action and resource, then lists the relevant data fields. Every word earns its place; there is no redundancy or filler.

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

Completeness4/5

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

For a no-argument getter with an output schema, the description is largely complete: it states the purpose and the data fields returned. The main gap is the absence of any note about authentication or the behavior when no ring exists, but the output schema likely covers return structure and the tool is simple enough to call correctly.

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, so the baseline is 4. The description adds meaning by listing the data fields the tool returns, which helps an agent understand the result even though no parameter documentation is needed.

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

Purpose5/5

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

The description uses a specific verb ('Get') with a clear resource ('the user's ring(s)') and enumerates the exact data fields returned: hardware generation, color, design, size, firmware, and setup date. This distinguishes it from all sibling tools, none of which target ring configuration.

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

Usage Guidelines3/5

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

The description implies usage when ring configuration is needed, but it provides no explicit when-to-use or when-not-to-use guidance, nor does it name alternatives. There are no closely related siblings, so the lack of alternatives is less critical, but the guidance is still only implicit.

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