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bgpview_asn_prefixes

Read-onlyIdempotent

Fetch IP prefixes announced by an ASN via BGPView to identify networks associated with an autonomous system for routing and security analysis.

Instructions

Get IP prefixes announced by an ASN from BGPView.

Input Schema

NameRequiredDescriptionDefault
asnYesASN number.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv0.1.11

TDQS

C2.9/5.0
Behavior2/5

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

Annotations already declare readOnly, idempotent, non-destructive and openWorld, covering the safety profile. The description adds only the data-source name 'BGPView'; it doesn't mention rate limits, auth, or the shape of returned prefixes.

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?

A single, front-loaded sentence with no filler. It is efficient, though its terseness borders on under-specification rather than ideal richness.

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 trivial one-param lookup with no output schema, it's minimally adequate, but it omits anything about the returned prefixes (format, count) or the external API's constraints that an agent might need.

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?

Only one parameter with 100% schema coverage, so the baseline is 3. The phrase 'announced by an ASN' maps to the asn parameter but adds no syntax or format detail beyond the schema.

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 ('Get') and resource ('IP prefixes announced by an ASN') plus the data source (BGPView). An agent can distinguish this from bgpview_asn and bgpview_ip by resource, though the description doesn't explicitly contrast them.

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?

No when-to-use guidance or exclusions. It doesn't say when to reach for this vs bgpview_asn or bgpview_ip; the agent must infer selection from the resource noun alone.

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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