rattus_crc_self_test

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

With no annotations available, the description carries the full burden of behavioral disclosure. It mentions the expected check vector but does not explain what happens on success or failure, whether it produces output, or if it has any side effects. The behavior beyond the stated verification is opaque.

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, efficient sentence that front-loads the core action (verify) and resource. It adds the expected vector in parentheses without unnecessary fluff. Every word contributes value.

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?

Given the tool's simplicity (no params, no output schema), the description is adequate but minimal. It clearly states the purpose and expected result, but does not explain how to interpret a failure or what the user should do next. For a self-test, this is acceptable but could be improved with a note about exit codes or response behavior.

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 tool has zero parameters, so the baseline is 4. The description appropriately includes the expected check vector, which is a hardcoded value and not a parameter. No parameter documentation is needed since there are none.

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 verifies that host-side CRC-8/MAXIM matches firmware RattusUart, with an explicit expected check vector (0xA1). The verb 'verify' and the specific resource (CRC-8/MAXIM vs firmware) make the purpose unmistakable and distinct from sibling tools.

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?

No guidance is provided on when to use this tool versus alternatives. It does not mention whether it should be run after flashing, before serial communication, or in conjunction with other tools. The description simply states what it does without any situational context.

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