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kali_network_masscan_scan

Perform high-speed network port scanning to identify open ports and services on target systems using the Masscan tool for security assessments.

Instructions

High-speed port scanner capable of scanning the entire internet in minutes. Use with caution and proper authorization.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
targetYesTarget IP, range, or CIDR (e.g., '192.168.1.0/24', '10.0.0.1-10.0.0.255')
portsYesPort range (e.g., '1-1000', '22,80,443', '0-65535')
rateNoPacket transmission rate (packets/second, default: 1000)
bannersNoGrab banners from services
timeoutNoScan timeout in seconds
Behavior2/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions 'high-speed' and 'capable of scanning the entire internet in minutes', which hints at performance, and 'Use with caution and proper authorization' implies potential risks. However, it lacks details on output format, error handling, rate limits, or specific destructive impacts (e.g., network disruption), leaving significant gaps for a powerful scanning tool.

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 highly concise and front-loaded, with two sentences that efficiently convey the tool's capability and a critical warning. Every sentence earns its place without redundancy or unnecessary elaboration, making it easy to parse quickly.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (high-speed scanning with potential network impact), lack of annotations, and no output schema, the description is incomplete. It misses details on behavioral traits (e.g., what results look like, error cases), usage nuances compared to siblings, and fails to fully address risks beyond a generic caution, leaving the agent under-informed for safe and effective use.

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?

The input schema has 100% description coverage, providing clear details for all 5 parameters (target, ports, rate, banners, timeout). The description adds no additional parameter semantics beyond what's in the schema, so it meets the baseline of 3 where the schema does the heavy lifting, but doesn't compensate with extra context.

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?

The description clearly states the tool's purpose as a 'high-speed port scanner' with the capability to 'scan the entire internet in minutes', which is specific and distinguishes it from general scanning tools. However, it doesn't explicitly differentiate from sibling tools like 'kali_network_nmap_scan' or 'kali_network_netdiscover_scan' beyond the high-speed aspect.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides implied usage guidance with 'Use with caution and proper authorization', which suggests ethical and legal considerations. However, it lacks explicit when-to-use vs. alternatives (e.g., compared to nmap_scan for detailed analysis or netdiscover_scan for local network discovery), and no specific exclusions or prerequisites are mentioned.

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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