analyze_dns_packets

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

No annotations provided, so description carries full burden. Discloses file limitations and supported formats, and mentions return type. Lacks details on side effects, permissions, or performance, but covers key behavioral constraints.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Description is verbose with sections (FILE UPLOAD LIMITATION, SUPPORTED, etc.) and docstring-style Args/Returns. While organized, it could be more concise without losing clarity.

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

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

Covers file input requirements and states 'comprehensive analysis results' but lacks detail on what DNS aspects are analyzed. Output schema exists but description could add more context about the analysis scope.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

With 0% schema coverage, description fully compensates by explaining that pcap_file must be an HTTP URL or absolute local path, and explicitly lists unsupported formats (Claude uploads, base64, relative paths).

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

Clearly states it analyzes DNS packets from a PCAP file and returns comprehensive results. The focus on DNS distinguishes it from siblings like analyze_dhcp_packets, analyze_icmp_packets, etc.

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

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

Provides explicit file input restrictions (local path or URL, not Claude upload or base64), giving clear when-to-use context. Does not explicitly contrast with siblings but sibling names imply specialization.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.