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COLMI Smart Ring MCP Server

COLMI Smart Ring MCP Server

by orviwan
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

blink_ring

Blinks the ring's green LEDs twice to locate it or send a physical alert from AI. Use as a finder or non-verbal notification.

Instructions

Causes the green optical biosensor LEDs on the smart ring to blink twice. Can be used as a physical locator ('Find my ring') or as a physical notification signal from the AI.

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": "blink_ring"
  }
}

Input Schema

NameRequiredDescriptionDefault
addressNo

Output Schema

NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A3.8/5.0
Behavior3/5

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

With no annotations, the description carries the full behavioral burden. It discloses the physical effect (green LEDs blink twice) and intended purposes, but does not state prerequisites such as ring connection, proximity requirements, or whether any permissions are needed.

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?

Two tight sentences, front-loaded with the core action and followed by use cases. 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?

For a simple physical action tool with an output schema, the description covers the main purpose and usage contexts. However, it omits parameter semantics and operational prerequisites, which are especially important given the absence of annotations and schema descriptions.

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

Parameters2/5

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

The schema has one optional 'address' parameter with 0% description coverage, so the description must compensate. It never mentions the address parameter or explains what address refers to, leaving its semantics undocumented.

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 states a specific action on a specific resource: causing the green optical biosensor LEDs on the smart ring to blink twice. This distinguishes it from read-oriented siblings such as get_ring_status and scan_rings.

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

Usage Guidelines4/5

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

It explicitly gives two usage contexts: physical locator ('Find my ring') and physical notification from the AI. It does not name exclusions or alternative tools, but the intended use cases are clear.

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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