get_io_statistics

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

Annotations already provide readOnlyHint=true, destructiveHint=false, idempotentHint=true, indicating safe read operation. The description adds the context of reading from a PCAP file and time-binning, but does not disclose details such as output format or any limitations beyond the schema.

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 extremely concise: a single sentence stating the purpose followed by clear parameter descriptions. Every element is necessary and front-loaded, with no redundant or extraneous content.

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?

The description covers the tool's input and purpose adequately for a simple read-only statistics tool with annotations. However, the absence of an output schema and lack of description of the return format (e.g., time bins, I/O metrics) leaves a gap. Considering the 0% schema coverage, the description partially compensates but not fully for output documentation.

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?

Despite 0% schema description coverage, the tool description explicitly explains each parameter: file_path as 'Path to PCAP/PCAPNG file', interval as 'Time interval in seconds for binning (positive number)', and display_filter as 'Optional Wireshark display filter'. This adds significant meaning beyond the schema's type-only definitions, though it could clarify that interval is a string representing a number.

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 'Time-binned I/O statistics from a PCAP file' clearly states the verb (get) and resource (I/O statistics) with a specific qualifier (time-binned). It distinguishes from sibling tools like get_conversation_stats and get_protocol_statistics by focusing on I/O, but does not explicitly differentiate or name alternatives.

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 provides no guidance on when to use this tool versus alternatives, no prerequisites, and no exclusion criteria. The sibling list is extensive but not referenced, leaving the agent to infer usage without context.

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