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fortytimer-mcp

fortytimer-mcp

Official
by fortytimer
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Remote

Vacation balance

fortytimer_get_vacation_balance
Read-only

Check a user's vacation balance for any year, covering entitlement, carry-over, adjustments, used, remaining, and pending days. Specify year and user ID to retrieve exact day counts.

Instructions

Vacation account of a user for one year: entitlement, carry-over, adjustments, used, remaining and pending (requested but not yet approved) days. Defaults to the current year. Values are day counts; half days (0.5) are valid.

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": "fortytimer_get_vacation_balance"
  }
}

Input Schema

NameRequiredDescriptionDefault
yearNoVacation year, default: current year
user_idNoUser ID (from fortytimer_list_users). Omitted: the token owner. Visibility is enforced server-side (admin: all users, supervisor: own approver groups, employee: self only).

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.2.2

TDQS

A4.2/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true and destructiveHint=false, and the description adds meaningful behavioral details: default year behavior, day-count units, half-day validity, and the precise meaning of 'pending' as requested-but-not-approved. This goes beyond what annotations provide without contradicting them.

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?

Three short sentences, each earning its place: the account components, the default year behavior, and the day-count/half-day clarification. The information is front-loaded and there is no filler.

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?

With no output schema, the description compensates well by enumerating the reported values and their units. It also clarifies default year and relies on the schema for user_id authorization semantics, leaving no major gap for an agent deciding whether and how to call it.

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 input schema already covers both parameters with descriptions, including the year default and user_id visibility rules, so schema coverage is 100%. The description mostly restates the year default and adds output-unit context rather than new parameter meaning.

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?

The description clearly identifies the resource: a user's vacation account for a year, with concrete components such as entitlement, carry-over, used, and remaining days. The tool name includes 'get_vacation_balance', and the sibling list shows a distinct overtime-balance alternative, making the purpose unambiguous.

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

Usage Guidelines4/5

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

The description establishes clear context: this is the vacation-balance read for a user in a given year, defaulting to the current year. It does not explicitly mention when not to use it or name alternatives, but the resource and sibling names make the intended use obvious.

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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