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zeek_query_dns

Search Zeek DNS logs with wildcard domain matching, query type filtering, and response code filtering to investigate network security events.

Instructions

Search Zeek DNS query logs. Supports wildcard domain matching, query type filtering, and response code filtering.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNoMax results
qtypeNoQuery type (A, AAAA, MX, TXT, CNAME, NS, PTR, SRV, SOA)
queryNoDomain query (supports wildcards: *.evil.com)
rcodeNoResponse code (NOERROR, NXDOMAIN, SERVFAIL, REFUSED)
srcIpNoQuerying host IP
timeToNoEnd time (ISO 8601)
answersNoSearch in DNS answers
timeFromNoStart time (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 fully disclose behavioral traits. It only mentions search capabilities but omits whether the tool is read-only, required permissions, rate limits, or the nature of results (raw vs aggregated). Significant behavioral gaps remain.

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?

A single, clear sentence conveying the tool's purpose and key features. No unnecessary words or repetition.

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?

With 8 parameters, no output schema, and minimal description, the tool lacks completeness. It does not explain result ordering, time range behavior, or default query scope. Adequate but with clear gaps for a tool of this complexity.

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%, with all 8 parameters described. The description adds a high-level summary of filtering (domain, qtype, rcode) but no additional semantic detail beyond what the schema already provides. Baseline score 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 the verb 'Search' and the resource 'Zeek DNS query logs'. It further specifies supported features (wildcard matching, query type, response code filtering). This effectively distinguishes it from sibling tools like zeek_query_http or zeek_query_connection.

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 use for DNS log searching but does not provide explicit context on when to use versus alternatives like zeek_dns_summary or zeek_dns_tunneling_check. No 'when not to use' guidance 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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