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Upcoming charter departure dates

charter_dates
Read-onlyIdempotent

Real upcoming charter departure dates from Tirana for a destination (cached calendar), each with the trip lengths (nights_available) really on sale for that departure and a ready booking-search link. Filter with date_from/date_to or month; total_count/has_more say when the calendar holds MORE dates than returned — never present a capped list as the whole calendar. For "which date is cheapest" use charter_flexible_dates.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNoMax dates to return (default 20).
monthNoWhole-month window, e.g. '2026-09' (ignored when date_from/date_to given).
adultsNoNumber of adults (default 2).
nightsNoTrip length in nights. Omit for the standard charter length (6 nights / 7 days). Most departures also sell 3-10 nights.
date_toNoOnly departures on/before this date (YYYY-MM-DD).
date_fromNoOnly departures on/after this date (YYYY-MM-DD).
destinationYesDestination key, e.g. 'antalya' or 'bodrum'.
children_agesNoAge of each child AT DEPARTURE (0-14 = child; 15+ is counted as an adult automatically).

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed7 schema fields changed
    • addedInput schema / properties / adults
      Added value: +{
      +  "description": "Number of adults (default 2).",
      +  "maximum": 6,
      +  "minimum": 1,
      +  "type": "integer"
      +}
    • addedInput schema / properties / children_ages
      Added value: +{
      +  "description": "Age of each child AT DEPARTURE (0-14 = child; 15+ is counted as an adult automatically).",
      +  "items": {
      +    "maximum": 17,
      +    "minimum": 0,
      +    "type": "integer"
      +  },
      +  "maxItems": 6,
      +  "type": "array"
      +}
    • addedInput schema / properties / date_from
      Added value: +{
      +  "description": "Only departures on/after this date (YYYY-MM-DD).",
      +  "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      +  "type": "string"
      +}
    • addedInput schema / properties / date_to
      Added value: +{
      +  "description": "Only departures on/before this date (YYYY-MM-DD).",
      +  "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      +  "type": "string"
      +}
    • addedInput schema / properties / limit
      Added value: +{
      +  "description": "Max dates to return (default 20).",
      +  "maximum": 60,
      +  "minimum": 1,
      +  "type": "integer"
      +}
    • addedInput schema / properties / month
      Added value: +{
      +  "description": "Whole-month window, e.g. '2026-09' (ignored when date_from/date_to given).",
      +  "pattern": "^\\d{4}-\\d{2}$",
      +  "type": "string"
      +}
    • addedInput schema / properties / nights
      Added value: +{
      +  "description": "Trip length in nights. Omit for the standard charter length (6 nights / 7 days). Most departures also sell 3-10 nights.",
      +  "maximum": 21,
      +  "minimum": 2,
      +  "type": "integer"
      +}
  2. First observed

TDQS

A4.7/5.0
Behavior5/5

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

Annotations already declare read-only, idempotent, and non-destructive behavior. The description adds valuable operational context beyond that: the calendar is cached, nights are actually on sale, and total_count/has_more warn that the response may be a capped subset, so the agent must not present it as the full calendar. This is meaningful behavioral guidance.

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 three dense sentences with no filler. The primary purpose is front-loaded, the cap/pagination caveat and filter guidance follow, and the alternative tool is named last. Every sentence earns its place.

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?

Even though there is no output schema, the description names the key result contents (nights_available, booking-search link, total_count/has_more) and the critical pagination caveat. Combined with the fully described schema and read-only annotations, an agent has enough information to call the tool correctly and interpret the response.

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 describes all 8 parameters with 100% coverage, so the baseline is 3. The description mostly restates filtering options and references an output field (nights_available) rather than adding new parameter semantics, but it does not need to compensate for missing schema documentation.

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 states exactly what the tool provides: real upcoming charter departure dates from Tirana for a destination, including trip lengths actually on sale and a booking-search link. It also distinguishes itself from charter_flexible_dates by explicitly naming that alternative for cheapest-date queries.

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?

It gives concrete filter guidance (date_from/date_to or month) and an explicit routing rule: use charter_flexible_dates when the user wants the cheapest date. This clearly tells an agent when to choose this tool over the most relevant sibling.

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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