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get_celestrak_satcat

Retrieve satellite catalog records from CelesTrak using filters such as NORAD catalog number, active status, payload, or orbit status.

Instructions

Look up satellite catalog (SATCAT) records from CelesTrak.

At least one filter parameter must be provided.

Args: catnr: NORAD catalog number. active: Filter to active objects only. payloads: Filter to payloads only. on_orbit: Filter to on-orbit objects only. limit: Maximum number of records to return.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
catnrNo
limitNo
activeNo
on_orbitNo
payloadsNo
Behavior2/5

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

No annotations are provided, so the description must convey behavioral traits. It only states the lookup action and parameter filtering. It does not disclose output format, data freshness, rate limits, error behavior, or side effects. The requirement for at least one filter is a positive, but overall it lacks transparency.

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 concise with a brief summary, a constraint line, and a parameter list. It uses a structured format (docstring) without extraneous content. Minor improvement could be front-loading the constraint.

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?

Given the tool has 5 parameters, no output schema, and many siblings, the description is minimally adequate. It lacks guidance on return format, sorting, pagination, and differentiation from similar tools (e.g., get_gcat_satcat). More context about what records include would improve completeness.

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 0%, but the description lists all 5 parameters with clear explanations (e.g., 'Filter to active objects only'), adding substantial meaning beyond the plain schema types and names.

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 states 'Look up satellite catalog (SATCAT) records from CelesTrak,' specifying the verb, resource, and source. Among siblings like get_gcat_satcat and get_spacetrack_satcat, this distinguishes by source and catalog type.

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 provides a key constraint: 'At least one filter parameter must be provided.' However, it does not advise when to use this tool over alternatives like get_celestrak_gp or get_spacetrack_satcat, nor does it mention prerequisites or context.

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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