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Fireball Events

jpl.events.fireballs
Read-onlyIdempotent

Retrieve reported fireball events with energy, velocity, altitude, and geographic coordinates from NASA JPL CNEOS data.

Instructions

Get reported fireball (bolide) events — atmospheric entry energy, velocity, altitude, geographic coordinates (NASA JPL CNEOS)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
date_minNoMinimum event date in YYYY-MM-DD format
date_maxNoMaximum event date in YYYY-MM-DD format
energy_minNoMinimum radiated energy in Joules (e.g. 1e10)
sortNoSort field (default: date descending)
limitNoMaximum number of results (default 20, max 100)

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultNoTool response payload. Shape varies per tool — consult the tool description and inputSchema. May be an object, array, string, or number depending on the upstream provider response.
errorNoPresent only when the call failed. Includes error code, message, request_id, and any provider-specific extras.
Behavior3/5

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

Annotations already declare readOnlyHint, destructiveHint, idempotentHint, openWorldHint, covering safety and idempotency. The description adds the data source (NASA JPL CNEOS) and fields, but does not disclose additional behavioral traits like pagination or rate limits.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, informative sentence that efficiently communicates the tool's purpose and key return fields. Minor improvement would be to front-load the source or avoid the dash.

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?

Given the presence of an output schema and full parameter descriptions, the description adequately summarizes the tool. It could mention filtering options (date_min, etc.) but the schema covers those.

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 coverage is 100% with each parameter well-described. The description does not add new meaning beyond the schema, listing only return fields. Baseline of 3 is appropriate.

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 specifies the verb 'Get' and the resource 'reported fireball (bolide) events', and lists key data fields (energy, velocity, altitude, coordinates), differentiating it from sibling tools like jpl.asteroids.approaches.

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

Usage Guidelines3/5

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

The description does not provide explicit guidance on when to use this tool versus alternatives (e.g., jpl.asteroids). It implies usage for fireball events but lacks when-not conditions or references to sibling tools.

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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