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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false, and openWorldHint=false, so safety is covered. The description adds value beyond that by disclosing the result hierarchy (report → issue → violator element → diagnosis), which helps the agent understand the payload shape. It stops short of mentioning size limits or pagination for large reports.

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?

Two sentences, front-loaded with the action and format ('Get one full report in JSON'). The follow-up sentence earns its place by explaining the domain and result structure rather than padding.

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?

With only two required scalar parameters and an output schema present, the description need not explain return values further; the domain context and result hierarchy it supplies are already more than required. The only minor gap is the absence of guidance on locating the jobID/timeStamp or what happens if a report does not exist.

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?

Schema coverage is 100% and both parameters carry descriptions with concrete format examples (jobID 'x9z', timeStamp '260503T0432'), so the schema does the heavy lifting. The description adds no additional parameter meaning, which is the correct baseline for full coverage.

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?

States a specific verb and resource ('Get one full report in JSON') and clarifies the scope as a single report rather than a list, which implicitly separates it from listReports. It does not name a sibling directly, but the singular 'one full report' is clear enough to act on.

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 'one full report' implies retrieval of a specific report versus a listing, but there is no explicit when-to-use, no prerequisites (e.g., a prior test must exist), and no named alternative such as listReports or getKilotestOverview. Usage must be inferred from the singular framing.

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