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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so the safety profile is covered. The description adds genuinely new behavioral context: the response is the entire report in one JSON payload, and its size is disclosed via listIssues, which usefully warns the agent that the payload may be large. It does not discuss limits or partial-failure behavior, so it falls short of a 5.

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?

Front-loaded with the core action and the discriminator, and the size caveat lands at the end where it is most useful. 'Returns the complete report data for the specified report identifier' largely restates the opening sentence, so it is slightly redundant but still compact.

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?

An output schema exists, so return values need no elaboration, yet the description still characterizes the payload contents and points to the tool that reveals its size. Combined with the explicit routing guidance against three siblings, an agent has everything needed to call this correctly.

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 the parameter already carries a description plus a concrete example ('260503T0432-x9z'). The description only refers to 'the specified report identifier', adding no syntax or format detail beyond the schema, so the baseline 3 applies.

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?

Specific verb+resource ('Retrieves one entire report as JSON') with explicit scope ('all of its issues, violators, and diagnoses'). It names the sibling tools it replaces – listIssues, listViolators, listDiagnoses – so an agent can distinguish it from the drill-down tools without opening any schema.

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?

States the selection condition directly: use this instead of drilling down through the three list tools when the full report is needed in one call. That is an explicit when-to-use with named alternatives, leaving nothing to inference.

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