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Jump

jump

Make an online player perform a single leap upward, enabling basic movement control in Minecraft.

Instructions

Make the player jump once.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
playerNoOnline player name (defaults to the first online player)
Behavior2/5

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

With no annotations provided, the description carries full responsibility for behavioral disclosure. It states 'jump once,' which is the core behavior, but does not disclose potential prerequisites (e.g., player on ground), side effects, or whether the action interrupts other states. This is minimal behavioral transparency.

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 communicates the essential action without any fluff. It earns high marks for efficiency and structure.

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 tool with one optional parameter and no output schema, the description is adequate but minimal. It lacks broader contextual details such as typical use cases or relationship to other movement commands, but the simplicity of the action makes it arguably sufficient.

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 covers the single parameter fully with a clear description, so the baseline is 3. The tool description adds no additional semantic value beyond the schema's parameter documentation.

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

Purpose4/5

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

The description clearly states the action ('Make the player jump once') with a specific verb and resource, which is more specific than just the tool name. It distinguishes from sibling movement tools like sprint and sneak, though it could be slightly clearer about the player scope.

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 provides no guidance on when to use this tool versus alternatives or when it is appropriate. There is no mention of context or exclusions, leaving the usage entirely implied.

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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