analyze_icmp_packets

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

With no annotations provided, the description carries the burden of disclosing behavioral traits. It goes beyond trivial by explaining the file upload limitation (web upload unsupported), specifying supported input formats, and clarifying the return type (structured dictionary). It does not mention side effects, but as an analysis tool, the main non-obvious behavior (file accessibility) is disclosed.

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?

The description is well-structured with clear sections (warning, supported formats, unsupported, args, returns) and front-loads the main purpose. While the Args section somewhat repeats the format details, the overall length is justified and each sentence adds value. The use of emojis and bullet points improves readability.

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?

For a tool with only one parameter and an output schema (not shown but noted), the description provides sufficient context: the purpose, input format restrictions, and return type. It does not detail the internal analysis contents, but the output schema is expected to cover that. The file access limitation is a critical contextual detail that is addressed.

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?

The schema only declares pcap_file as a string with no description (coverage 0%). The description compensates by defining exactly what the parameter expects: an HTTP URL or absolute local file path, with examples. This gives the agent the necessary information to format the argument correctly.

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?

The description clearly states the tool's action ('Analyze ICMP packets'), the resource ('from a PCAP file'), and the outcome ('return comprehensive analysis results'). It distinguishes itself from sibling tools like analyze_dns_packets and analyze_dhcp_packets by explicitly focusing on ICMP traffic.

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?

The description gives clear setup guidance about file access (URL or local path) and unsupported upload methods, but it does not explicitly state when to use this tool over its siblings or when not to use it. Usage is implied through the name and protocol focus, but no alternatives or exclusions are mentioned.

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