verify_audit_integrity

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

With no annotations, the description carries the full burden of behavioral disclosure. It correctly states the tool checks HMAC signatures and returns counts and status, implying a read-only operation. However, it does not explicitly confirm it is non-destructive or mention any prerequisites (e.g., access to audit logs). Some ambiguity remains about whether it modifies any state.

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, consisting of two short sentences that immediately convey the purpose ('Verify HMAC signatures') and the outcome ('Returns counts...'). Every sentence adds value, and there is no fluff or repetition.

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 parameters, no output schema), the description covers the essential aspects: what it does and what it returns. It lacks details on error handling, prerequisites, or how the integrity status is determined (e.g., boolean or string), but these are minor omissions for a straightforward verification tool.

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 parameters, and schema coverage is 100% (since no parameters exist). According to the rubric, with 0 parameters the baseline is 4. The description does not need to add parameter information, and it correctly focuses on the tool's action and output.

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 'Verify' and specifies the resource ('HMAC signatures on all safety audit log entries'). It distinguishes the tool as a security-focused audit verification, which is unique among many sibling tools that are about printing, design, and management.

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 explicit guidance on when to use this tool versus alternatives is provided. Given the large list of siblings, including tools like 'safety_audit' and 'export_audit_trail', the description should clarify that this tool specifically checks integrity via HMAC, not general auditing or export. The absence of such guidance reduces its helpfulness.

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