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zeek_network_baseline

Generate a statistical baseline of normal network activity by calculating averages and distributions for connections, bytes, services, and protocols to identify deviations that may indicate compromise.

Instructions

Generate a statistical baseline of normal network activity. Calculates averages, standard deviations, and distributions for connections, bytes, services, and protocols. Use as a reference point to identify deviations that may indicate compromise.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
timeToNoBaseline period end (ISO 8601)
timeFromNoBaseline period start (ISO 8601)
Behavior2/5

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

No annotations are provided, so the description must bear all responsibility. It describes the computational output but fails to disclose whether the tool is read-only, requires special permissions, or has side effects. The behavioral profile is incomplete.

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 efficient sentences: the first states purpose and calculations, the second provides usage guidance. No redundancy, and key information is front-loaded.

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?

The description mentions statistics calculated but does not specify output format, default behavior when parameters are omitted, or any constraints on time ranges. With no output schema, additional detail would improve completeness.

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% with both parameters described as ISO 8601 date strings. The description adds no additional meaning beyond the schema, such as defaults or behavior when omitted. Baseline score of 3 applies.

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 action 'Generate a statistical baseline of normal network activity' and specifies calculations (averages, standard deviations, distributions) and scope (connections, bytes, services, protocols). The tool name includes 'baseline' and siblings include 'zeek_detect_anomalies', making the distinction evident.

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 suggests using the baseline as a reference for identifying deviations, implying appropriate use. However, it does not explicitly state when not to use this tool or name alternative tools like 'zeek_detect_anomalies' for detection tasks.

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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