Skip to main content
Glama

roll_dice

Roll dice with a specified number of sides, enabling random outcomes for games, simulations, and decision-making. Set the number of dice and sides for each roll.

Instructions

Roll dice with specified number of sides

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
countNoNumber of dice to roll (default: 1)
sidesYesNumber of sides on the die
Behavior2/5

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

With no annotations, the description carries full responsibility for behavioral disclosure, but it only states the basic action. It does not describe the return format (list of rolls, sum, etc.), randomness characteristics, or constraints like positive integer sides, leaving significant behavioral traits unspecified.

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 with no wasted words. It is front-loaded and easy to parse, making it appropriately sized for a simple tool, even though more detail could be added.

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?

Given there is no output schema and no annotations, the description must explain expected behavior and return values, but it does not. It also omits the count parameter entirely, leaving the tool incomplete for practical use.

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?

Input schema coverage is 100%, so the schema already fully documents both parameters with descriptions. The tool description adds no additional meaning beyond the schema, thus the baseline of 3 is appropriate.

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 tool rolls dice with a specified number of sides, using a specific verb and resource. It distinguishes itself from sibling randomization tools like random_integer or flip_coin, though it does not explicitly mention supporting multiple dice via the count parameter.

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?

No guidance is provided on when to use this tool versus alternatives such as random_integer or flip_coin. The description does not mention any context, prerequisites, or alternative tool exclusions.

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

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/MikeyBeez/mcp-random'

If you have feedback or need assistance with the MCP directory API, please join our Discord server