Jet Tracker

Flight history of an aircraft

jt_aircraft_flights

Read-onlyIdempotent

Tracked flights of one Brazilian registration in a period (default last 90 days, max 365): departure, arrival, arrivalConfidence (landed, last_seen, reported, inferred, unknown), duration, plus coverage (status never_seen/active/lost, first and last tracked flight, flights on record). Newest first, max 200 per call, paginate with nextCursor. Coverage is partial and a third of flights end at strips without ground coverage (see the caveat).

Input Schema

TableJSON Schema

Name	Required	Description
`to`	No	End date YYYY-MM-DD (default: today).
`from`	No	Start date YYYY-MM-DD (default: 90 days ago).
`limit`	No	Default 50.
`cursor`	No	nextCursor from a previous page.
`registration`	Yes	Brazilian registration (PR-TBL).

Output Schema

TableJSON Schema

Name	Required	Description
`code`	No	Machine-readable error code (INTERNAL, TIMEOUT, INVALID_ARGUMENT, NOT_FOUND, TOOL_FAILED, ACCOUNT_KEY_REQUIRED).
`_meta`	No
`error`	No
`found`	No
`gated`	No
`requestId`	No
`retryable`	No
`quota_exceeded`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed8 schema fields changedSep 16, 2026

addedOutput schema / properties / _meta / properties / asOf / description
```
Added value: +"Alias of sourceUpdatedAt (kept for compatibility)."
```

addedOutput schema / properties / _meta / properties / generatedAt

Added value: +{
+  "description": "When this response was produced (ISO 8601).",
+  "type": "string"
+}

addedOutput schema / properties / _meta / properties / observedAt

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Last event actually observed in the data returned (last flight, last arrival, last listing sighting)."
+}

addedOutput schema / properties / _meta / properties / sourceUpdatedAt

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Last sync of the underlying source (RAB snapshot, registry import, listing scan). Never in the future."
+}

addedOutput schema / properties / _meta / properties / validUntil

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Expiry of the fact returned, when it has one (CVA validity, period end)."
+}

addedOutput schema / properties / code

Added value: +{
+  "description": "Machine-readable error code (INTERNAL, TIMEOUT, INVALID_ARGUMENT, NOT_FOUND, TOOL_FAILED, ACCOUNT_KEY_REQUIRED).",
+  "type": "string"
+}

addedOutput schema / properties / requestId
```
Added value: +{
+  "type": "string"
+}
```
addedOutput schema / properties / retryable
```
Added value: +{
+  "type": "boolean"
+}
```

First observedSep 11, 2026

TDQS

A4.4/5.0

Behavior5/5

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

Adds substantial behavior beyond the read-only/idempotent annotations: newest-first ordering, max 200 per call, pagination via nextCursor, and a notable data-quality caveat about partial coverage and flights ending at strips without ground coverage. This gives the agent important expectations about result completeness.

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 dense but well-organized: core scope first, then output highlights, then pagination/limits, then a caveat. Every sentence adds value and there is no filler or repetition of annotations.

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?

For a read-only paginated list tool with a rich output schema, the description covers all essential operational details: defaults, maximums, ordering, pagination, and data reliability caveats. An agent can call this correctly and interpret results accurately without further hunting.

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?

Schema description coverage is 100%, so the baseline is 3. The description adds meaningful parameter context on top: the 90-day default and 365-day maximum range, the per-call limit of 200, and the pagination mechanism tied to nextCursor. These details go beyond what the schema itself states.

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?

The description uses a specific verb and resource: 'Tracked flights of one Brazilian registration in a period', with a clear list of returned fields. It does not explicitly contrast itself with sibling tools like jt_aircraft_history, so it misses the top score for sibling differentiation, but the purpose is unmistakable.

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 clearly defines when the tool applies: one Brazilian registration, a date range, with default and maximum boundaries, ordering, and pagination. It does not name alternatives or exclusion conditions, but the context is explicit and actionable enough for an agent to select it.

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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