Fingerprint protocol payload

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

With no annotations provided, the description carries full responsibility for behavioral disclosure. It mentions that no network traffic is sent, which is a key safety trait, but it doesn't explain what a fingerprint is, whether it's deterministic, or what the output looks like. Minimal behavioral context beyond the single phrase.

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 a single, front-loaded sentence with no redundant words. It efficiently communicates the core action and a key constraint. It could include a bit more detail without becoming verbose, but it earns a 4 for conciseness.

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 tool has a simple input schema and no output schema, so the description is the only context. While the purpose is clear, the lack of return value details and lightweight usage guidance leaves gaps. For a single-parameter tool, this is borderline acceptable, but it falls short of fully informative.

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 input schema has zero description coverage, so the description must compensate. It adds that the payload is 'raw hex', which clarifies the expected format for payloadHex. However, it doesn't provide examples or validate constraints beyond the schema. This is adequate for a single parameter but not rich.

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 verb 'fingerprint' and the resource 'one raw hex payload', making the tool's core function apparent. The qualifier 'without sending network traffic' adds useful scope. However, it doesn't explicitly differentiate from sibling tools like proto_auto_detect, so a 4 is appropriate.

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 phrase 'without sending network traffic' implies an offline use case, but there is no explicit when-to-use guidance or comparison with alternatives. The description hints at a context but doesn't provide exclusions or clear selection criteria.

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