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list_tools

Discover and filter 670+ cybersecurity tools by module, install method, or installed status. Narrow the registry to find the right tool before checking installation or details.

Instructions

List and filter the 670+ cybersecurity tools in the registry.

Returns the tools drawn from tools_config.json — the same registry the installer and the advisors share — with the total count, the filters still available to narrow the results, and one entry per tool. Combine the filters to scope the list: module="web" for web tools, method="pipx" for Python-packaged tools, installed_only=True for only what is on this host. Start here to discover what exists before check_installed or get_tool_info.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
methodNoFilter by install method. One of apt, pipx, go, cargo, gem, git, binary, docker, snap, special, source, npm.
moduleNoFilter by module (e.g. "web", "pwn", "forensics"). 18 modules available.
installed_onlyNoIf true, only return tools that are currently installed.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changedv1.2.1
    • changedInput schema / properties / method / anyOf
      Previous value: -[
      -  {
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "enum": [
      +      "apt",
      +      "pipx",
      +      "go",
      +      "cargo",
      +      "gem",
      +      "git",
      +      "binary",
      +      "docker",
      +      "snap",
      +      "special",
      +      "source",
      +      "npm"
      +    ],
      +    "type": "string"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedInput schema / properties / method / description
      Previous value: -"Filter by install method (apt, pipx, go, cargo, gem, git, binary, docker, snap, special, source, npm)."New value: +"Filter by install method. One of apt, pipx, go, cargo, gem, git,\nbinary, docker, snap, special, source, npm."
  2. First observedv1.2.0

TDQS

A4.7/5.0
Behavior5/5

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

With no annotations supplied, the description carries the full transparency burden and meets it: it discloses the data source (tools_config.json), the shape of the result (total count, remaining filters, one entry per tool), and the fact that filters can be combined. This goes well beyond what the name or schema alone conveys.

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?

Three sentences with no filler: purpose, return composition, and usage examples are front-loaded. The closing pointer to sibling tools earns its place, and the filter examples are positioned where they are most useful.

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?

For a tool with three optional parameters and a full output schema, this description is complete. It covers what is returned, the source of the data, how filters work, and where it fits in the discovery workflow, leaving no missing information an agent would need to call it correctly.

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 coverage is 100%, so the baseline is 3. The description adds value by providing semantic mappings such as 'pipx' meaning Python-packaged, clarifying installed_only as 'only what is on this host,' and explicitly noting that filters can be combined, which is not stated in the schema.

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 opens with 'List and filter the 670+ cybersecurity tools in the registry,' giving a specific verb and resource. It further distinguishes itself by noting the data comes from tools_config.json and by positioning itself as the place to start 'before check_installed or get_tool_info.'

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?

It gives explicit when-to-use guidance ('Start here to discover what exists before check_installed or get_tool_info') and concrete filter examples such as module='web', method='pipx', and installed_only=True. It does not provide an explicit when-not-to-use rule or name a direct alternative for filtered detail, so it stops short of a 5.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.