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HALO (GEMMA-by-GOOGLE)

HALO (GEMMA-by-GOOGLE)

by XenoCoreGiger31
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

run_nmap

Scan a target IP or hostname to discover open ports, detect service versions, and run enumeration scripts for detailed reconnaissance.

Instructions

Detailed port/service scan with version and script detection.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "target": "<target>"
    },
    "name": "run_nmap"
  }
}

Input Schema

NameRequiredDescriptionDefault
flagsNonmap flags.-sV
targetYesIP or hostname to scan.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

A3.5/5.0
Behavior3/5

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

With no annotations provided, the description carries the full burden. It mentions version and script detection, but does not disclose potential side effects like network traffic, root requirements, or scan duration. Provides basic behavior but lacks depth.

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?

The description is a single concise sentence that front-loads the main purpose. No unnecessary words or redundancy.

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 complexity of nmap and the absence of an output schema, the description is somewhat incomplete. It does not mention scanning behavior, limitations, or performance considerations, but it provides a high-level overview sufficient for basic understanding.

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 description coverage is 100% (both parameters are described in the input schema). The description does not add additional meaning beyond the schema, so a baseline score of 3 is appropriate.

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 performs a 'Detailed port/service scan with version and script detection' using nmap, which is specific and distinguishes it from sibling tools like run_curl or run_enum4linux.

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?

The description provides no guidance on when to use this tool versus alternatives such as run_masscan or run_nikto. No when/when-not or comparative context is given.

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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