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flightaware-mcp

by chrischall
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Remote

fa_get_airport_delays

Read-only

Check current airport delays for all airports or a specific airport code. Retrieve delay statuses to make informed travel decisions.

Instructions

Get current airport delays — all delayed airports, or just one when id is given.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
idNoAirport code to scope to a single airport (omit for all delays)
viewNoResponse shape: "compact" (default) drops fields the response already carries elsewhere; "full" returns every field this server understands. compact strips image/avatar URLs from the response; "full" returns FlightAware's payload untouched. No field projection: this server has no verified record of which FlightAware fields matter, and inventing one would risk dropping a field a caller needs.
cursorNoOpaque paging cursor from a previous response's links.next
max_pagesNoMax pages to fetch, 1-20 (AeroAPI default: 1). Capped at 20 since AeroAPI bills per page.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv0.5.2
    • addedInput schema / properties / view
      Added value: +{
+  "description": "Response shape: \"compact\" (default) drops fields the response already carries elsewhere; \"full\" returns every field this server understands. compact strips image/avatar URLs from the response; \"full\" returns FlightAware's payload untouched. No field projection: this server has no verified record of which FlightAware fields matter, and inventing one would risk dropping a field a caller needs.",
+  "enum": [
+    "compact",
+    "full"
+  ],
+  "type": "string"
+}
  2. Changed2 schema fields changedv0.3.2
    • changedInput schema / properties / max_pages / description
      Previous value: -"Max pages to fetch (AeroAPI default: 1)"New value: +"Max pages to fetch, 1-20 (AeroAPI default: 1). Capped at 20 since AeroAPI bills per page."
    • changedInput schema / properties / max_pages / maximum
      Previous value: -9007199254740991New value: +20
  3. First observedv0.1.0

TDQS

A4/5.0
Behavior3/5

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

Annotations already signal read-only and open-world behavior. The description adds that results are current and scopeable, but it does not mention response shape, empty results, or that the view parameter changes output verbosity.

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?

One tight sentence: action, resource, and the all-versus-single condition are front-loaded and unambiguous. No filler, and the most useful decision cue appears early.

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 simple read-only delay lookup, the description plus annotations and schema cover all core usage. It could have named the view/pagination trade-off, but the id-scoping rule is the main behavioral branch and it is explicit.

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 schema already describes id and view well. The description only re-states the id scoping behavior and adds no extra parameter context, which is acceptable because schema coverage is high.

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 a specific verb and resource — 'Get current airport delays' — and immediately clarifies the two scoping modes: all delayed airports or one airport when id is provided. No sibling tool covers delays specifically, so the tool is easy to distinguish.

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 gives a clear decision rule: omit id for all delays, include id for a single airport. It does not name alternative tools, but the delay scope is unique among siblings and the condition is unambiguous.

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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