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oliverames

YNAB MCP Server

by oliverames
OverviewSchemaRelated ServersScoreDiscussions
JavaScript
Remote

Get User

get_user
Read-onlyIdempotent

Retrieve the authenticated YNAB user's ID to validate the API token and confirm connectivity. Read-only operation that requires no input.

Instructions

Get the authenticated YNAB user (their user ID). Read-only; takes no input. Mainly useful to verify the API token works — for credential/config diagnostics prefer ynab_auth_status, which needs no API request.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYesStructured result returned by Get User.

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. Changed2 schema fields changedv5.1.1
    • addedInput schema / $schema
      Added value: +"http://json-schema.org/draft-07/schema#"
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": false,
+  "properties": {
+    "result": {
+      "description": "Structured result returned by Get User."
+    }
+  },
+  "required": [
+    "result"
+  ],
+  "type": "object"
+}
  2. First observedv2.0.0

TDQS

A4.9/5.0
Behavior5/5

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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false. Description adds that it is read-only and takes no input, and that it returns the user ID. No contradictions.

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?

Two sentences, front-loaded with purpose and result. Every sentence adds value: first describes action and return, second provides usage guidance.

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

Completeness5/5

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

Given no parameters and presence of output schema, description fully covers purpose, return value, use case, and alternatives. No gaps.

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?

No parameters, baseline is 4. Description correctly states 'takes no input', leaving no ambiguity.

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?

States the verb 'Get' and resource 'authenticated YNAB user (their user ID)'. Distinguishes from sibling 'ynab_auth_status' by clarifying that this tool returns user ID and verifies the API token, while the sibling is for diagnostics.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly states when to use (verify API token works) and when not to (prefer ynab_auth_status for credential/config diagnostics). Also notes it takes no input, which simplifies usage.

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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