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GreyNoise-Intelligence

greynoise-mcp-server

Official

get-tag-list

Retrieve the complete list of GreyNoise tags with metadata including name, category, intention, and associated CVEs.

Instructions

Retrieve the complete list of GreyNoise tags. Metadata for each tag includes:

  • id: a unique identifier for the tag used in some API calls

  • name: the human readablename of the tag

  • slug: the slugified tag name used in some other API calls

  • description: a brief description of the tag's purpose or meaning

  • category: the category or type of the tag

  • intention: whether the tag activity is benign, malicious, suspicious,or unknown

  • references: an optional array of URL references or sources for the tag

  • cves: an optional array of CVE identifiers associated with the tag

  • created_at: the timestamp when the tag was created

  • related_tags: an optional array of related tags that are similar or related to the current tag

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior4/5

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

No annotations provided, so the description carries full burden. It discloses the return structure comprehensively but does not mention pagination or limits; however, with zero parameters, pagination is unlikely, making this a minor gap.

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 front-loaded with the main purpose and then lists all fields in a clear manner. Slightly verbose due to field enumeration, but each line adds value.

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?

Given no parameters, no output schema, and no annotations, the description fully explains the tool's behavior and return format, making it complete for a straightforward list retrieval tool.

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?

Zero parameters, so schema coverage is 100%. Baseline is 4 per guidelines; description adds no parameter info but none needed.

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 the tool retrieves 'the complete list of GreyNoise tags' and enumerates all metadata fields, distinguishing it from siblings like search-tags (which filter) and get-tag-details (single tag).

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 implies usage when a full tag list is needed, but does not explicitly specify when not to use or compare to alternatives like search-tags. Context is clear but lacks exclusionary guidance.

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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