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klodnickik

mcp-server-awtrix

by klodnickik

awtrix_set_settings

Idempotent

Control display brightness, transition animations, and screen power state to adjust the Awtrix clock's appearance to your environment.

Instructions

Configure display brightness, transition animations, and screen power state.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
powerNo
brightnessNo
transitionsNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A3.9/5.0
Behavior3/5

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

Annotations already declare idempotentHint=true, destructiveHint=false, and openWorldHint=true, so the description is not required to restate safety behavior. The description adds a bit of context by listing what settings are affected, but it does not disclose side effects, persistence, or range constraints beyond the schema.

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, compact sentence that states the action and the key areas affected. It is front-loaded with the verb and wastes no words.

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 simple three-parameter settings tool with an output schema and safety-related annotations, the description is mostly sufficient. It could mention that all parameters are optional and independently updatable, but the schema already conveys that through defaults and nullability.

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?

Schema description coverage is 0%, so the description bears the responsibility for explaining parameters. It only paraphrases the property names (brightness, transitions, power) without adding meaning about value ranges, units, null semantics, or the effect of each flag. The schema reveals defaults but little explanatory content.

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 ('Configure') and clearly identifies the resource (display settings) while naming the three configurable areas: brightness, transition animations, and screen power state. This distinguishes it from the sibling tools like awtrix_notify, awtrix_upsert_app, and awtrix_delete_app.

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?

The description makes the tool's purpose clear enough that an agent can infer when to use it: whenever display-level settings need to be changed. It does not explicitly state when not to use it or name alternatives, but the context is unambiguous given the sibling tool names.

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