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Krisparenthetic284

OSINT MCP Server

bgp_asn

Look up an ASN to obtain organization details and all announced IPv4/IPv6 prefixes.

Instructions

Look up ASN details and announced IPv4/IPv6 prefixes via BGPView. Returns ASN name, description, contacts, and all announced prefixes.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
asnYesAutonomous System Number (e.g. 13335)
Behavior2/5

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

No annotations are provided, so the description carries full burden. It mentions returns but does not disclose read-only nature, rate limits, authentication needs, or any side effects. Minimal behavioral insight.

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 sentences, concise and front-loaded with purpose. No extraneous information; every word adds value.

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?

Tool is simple with one parameter and no output schema; description covers basic function and return content. However, missing usage guidelines and behavioral transparency leave some gaps for full context.

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% for the single parameter 'asn', with a clear example. The description adds no additional semantics beyond the schema, earning the baseline score of 3.

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 it looks up ASN details and announced prefixes via BGPView, specifying the verb 'look up' and resource. It distinguishes from siblings like bgp_ip and bgp_prefix by focusing on ASN-level data.

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 guidance on when to use this tool versus alternatives (e.g., hackertarget_aslookup or other ASN tools). The description only states what it does, lacking explicit context for selection.

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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