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Kani MCP Server

Kani MCP Server

by Alexxanddr
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Local

get_user

Read-onlyIdempotent

Retrieves the authenticated WaniKani user profile and subscription state so clients can confirm account details and access level.

Instructions

Get the authenticated WaniKani user profile and subscription state

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_user"
  }
}

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.4

TDQS

A3.7/5.0
Behavior3/5

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

Annotations already declare readOnlyHint, idempotentHint and openWorldHint, so the safety profile is covered. The description adds that the data is scoped to the authenticated user (implying an API token requirement) and names the two data groups returned, but says nothing about unauthenticated/error behavior or rate limits.

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?

A single, front-loaded sentence with zero filler that identifies resource and returned content immediately.

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 zero-parameter read tool with full annotation coverage, naming the two things returned (profile, subscription state) is sufficient, and no output schema exists to require more. Missing only minor context such as auth failure handling.

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

Parameters4/5

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

The tool takes zero parameters, so there is no parameter semantics to explain and the baseline of 4 applies. Nothing in the description misleads about inputs.

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?

States a specific verb and resource ('Get the authenticated WaniKani user profile and subscription state'), which clearly separates it from the list_* collection tools and get_summary. It stops short of naming a sibling or explicitly stating it returns the caller's own account rather than an arbitrary resource, which get_resource might suggest.

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?

Usage is only implied: an agent can infer this is the tool for account/subscription information, but there is no explicit when-to-use, no prerequisites stated, and no pointer to alternatives such as get_summary or get_resource.

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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