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COLMI Smart Ring MCP Server

COLMI Smart Ring MCP Server

by orviwan
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

sync_time

Set the smart ring's real-time clock to match your host system's current time, keeping recorded activity, sleep, and vitals timestamps accurate.

Instructions

Synchronizes the smart ring's internal real-time clock (RTC) with the host system's current time.

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": "sync_time"
  }
}

Input Schema

NameRequiredDescriptionDefault
addressNo

Output Schema

NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

B3.4/5.0
Behavior3/5

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

With no annotations, the description carries the full disclosure burden. It usefully clarifies the direction of the sync (host time is written into the ring's RTC), which is real behavioral information, but it omits whether a connection is required, whether the write is reversible, and what happens on failure.

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?

One sentence, front-loaded with the action and target, with no filler or redundancy.

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?

An output schema exists, so return values need not be described, and the operation itself is simple. However, for a device-writing tool with no annotations and an undocumented parameter, the description leaves when-to-use and preconditions unaddressed.

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 single optional 'address' parameter has 0% schema description coverage, and the description never mentions it. The phrase 'the smart ring' faintly implies a default target device, but this does not compensate for the undocumented address argument.

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?

States a specific verb ('Synchronizes') and a precise resource ('the smart ring's internal real-time clock (RTC)'), including both endpoints of the sync. No sibling tool performs a comparable action, so an agent can identify it unambiguously.

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?

The description says what the tool does but never states when to invoke it — e.g., after clock drift, on connection, or before time-stamped reads. No alternatives or preconditions are named, so usage must be inferred entirely by the agent.

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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