Skip to main content
Glama

riot_summoner

Look up a League of Legends summoner by name and region to get their details.

Instructions

Get a League of Legends summoner by name.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
summonerNameYes
regionNoe.g. euw1, na1, kr
api_keyNo
Behavior1/5

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

The description does not disclose any behavioral traits such as authentication requirements, rate limits, or side effects. With no annotations provided, the description carries the full burden but fails to add any transparency.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is very concise (one sentence) with no wasted words. However, it is under-specified, lacking details that would be expected for a tool with multiple parameters and no annotations.

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

Completeness1/5

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

Given that there are three parameters and no output schema or annotations, the description is severely incomplete. It does not explain what the tool returns, what the required parameter is, or how to use it correctly.

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

Parameters1/5

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

The description adds no meaning beyond the input schema. Only one of three parameters (region) has a schema description. The description does not explain summonerName or api_key, nor does it provide context for usage.

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 (Get) and resource (summoner) with a specific lookup method (by name). It is unambiguous, though it does not differentiate from sibling Riot tools like riot_get_match, but those are distinct endpoints.

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 riot_get_match or riot_ranked. The description gives no context about prerequisites or scenarios.

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/malamutemayhem/unclick'

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