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minecraft-mcp

minecraft-mcp

by IotA-asce
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Local

Read time and weather

get_time_weather

Retrieve the current in-game time and weather conditions for a Minecraft world. Specify a world or player to get specific environment details.

Instructions

Read the time of day and weather for a world (default: the player's world).

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": "get_time_weather"
  }
}

Input Schema

NameRequiredDescriptionDefault
worldNoWorld name (defaults to the player's current world)
playerNoOnline player name (defaults to the first online player)

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A3.6/5.0
Behavior3/5

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

No annotations are provided, so the description carries the burden. It discloses the default world behavior and uses 'Read' to imply non-destructive operation. However, it does not mention potential edge cases such as requiring an online player or what happens when defaults cannot be resolved.

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 sentence with no redundant words. It immediately states the action and object, making it easy to parse.

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

Completeness2/5

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

The description omits any mention of the 'player' parameter, leaving its purpose unclear. There is no output schema, and the description does not clarify what the returned data looks like. For a tool with two optional parameters and no annotations, this is insufficient.

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

Parameters3/5

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

The schema documents both parameters with 100% coverage, including defaults. The description adds no additional meaning about the 'player' parameter and only restates the world default already in the schema. Thus it meets the baseline but provides no extra semantic value.

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 the specific verb 'Read' and identifies the resource as 'time of day and weather' for a world, with a default scope. This clearly distinguishes it from sibling tools like set_time and set_weather, which are mutating operations.

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 the tool is for querying current time and weather but does not explicitly state when to use it over alternatives. Since siblings include set_time and set_weather, the read-only nature is inferred but not explicitly contrasted. No exclusions or alternative recommendations are provided.

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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