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fa_list_operators

Read-only

List operators (airlines) known to FlightAware AeroAPI. Use the cursor to page through results.

Instructions

List operators (airlines) known to AeroAPI (paged). Use the cursor to page through.

Input Schema

NameRequiredDescriptionDefault
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.
cursorNoPaging cursor: the cursor query parameter of a previous response's links.next (passing the whole links.next value also works)
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 changedv1.3.2
    • changedInput schema / properties / cursor / description
      Previous value: -"Opaque paging cursor from a previous response's links.next"New value: +"Paging cursor: the cursor query parameter of a previous response's links.next (passing the whole links.next value also works)"
  2. Changed1 schema field changedv1.0.0
    • changedInput schema / $schema
      Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
  3. 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"
      +}
  4. 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
  5. First observedv0.1.0

TDQS

B3.3/5.0
Behavior3/5

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds that results are paged and cursor-driven, which is genuine behavioral context, but says nothing about result volume, ordering, or what happens when the cursor expires. Adds some value over annotations, nothing rich.

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 short sentences, purpose front-loaded, zero filler. Every clause carries information and nothing is buried.

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

Completeness3/5

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

For a no-required-param list tool with readOnly annotations and no output schema, this covers the essentials but is thin: it never describes what an operator record returns or how results are ordered. Adequate to call, but not complete.

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?

Schema description coverage is 100%, so the schema already fully documents view, cursor, and max_pages including the billing rationale behind the 20-page cap. The description only reinforces "cursor" for paging and adds no format or semantics beyond what the schema provides. Baseline 3 applies.

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 ("List") and resource ("operators (airlines)") scoped to AeroAPI, and the parenthetical disambiguates operators as airlines. It is clearly distinct from fa_get_operator in form, but the description never names that sibling, so the agent must infer the singular-vs-list distinction from the name alone.

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

Usage Guidelines2/5

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

"Use the cursor to page through" is mechanical guidance about a parameter, not a statement of when to use this tool versus alternatives like fa_get_operator. There is no mention of prerequisites, when-not-to-use, or which sibling to reach for.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.