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Kyze-Labs

Damn Vulnerable MCP Server (DVMCP)

by Kyze-Labs

it.query_audit_log

Search the system audit log for security events. Filter by actor, action type, or time range to identify threats.

Instructions

Search the system audit log for security events. Filter by actor, action type, or time range.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
actorNoFilter by actor username
actionNoFilter by action type
sinceNoFilter events after this timestamp
Behavior2/5

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

No annotations are provided, so the description bears the full burden. It states the tool searches and filters but does not disclose behavioral traits such as pagination, ordering, rate limits, authentication needs, or whether it is read-only. As a query tool, it likely has no side effects, but this is not confirmed.

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 sentence that efficiently conveys the core purpose and available filters. Every word is necessary and there is no extraneous information.

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?

For a simple query tool with three optional parameters and no output schema, the description is minimally adequate. However, it omits details about output format, result ordering, data retention, or any limitations, which would help an agent use the tool effectively.

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%, meaning the input schema already fully documents each parameter. The description merely echoes the filter dimensions without adding new semantics or usage nuances beyond what the schema provides.

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 explicitly states the tool searches the system audit log for security events and lists the key filter dimensions (actor, action, time range). This distinguishes it from sibling tools like it.execute_admin_command or it.manage_users, which have different purposes.

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 implies usage for querying audit logs but does not provide explicit guidance on when to use it versus alternatives like it.get_system_config or other read tools. No 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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