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

Annotations already declare readOnlyHint=true and idempotentHint=true, covering the safety profile. The description adds valuable context beyond annotations by noting that 'Values are preliminary or updated state reports and may include footnotes or missing periods.' This discloses data quality and completeness issues not captured in structured fields.

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 two sentences with zero waste. The first sentence states the core purpose; the second adds an essential caveat about data quality. It is front-loaded and every word earns its place.

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 presence of an output schema and comprehensive annotations, the description covers the essential purpose and caveats. It does not explain the month-range relationship, but the schema examples imply it. For a moderately complex tool, this is sufficient context.

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 description coverage is 100%, with each parameter (state, to_month, from_month) fully described in the schema. The description adds no meaningful parameter semantics beyond 'for one state,' which is already implied by the schema. Per rubric, baseline 3 is appropriate when the schema does the heavy lifting.

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's function: 'Show monthly Medicaid and CHIP enrollment and application-processing indicators for one state.' This specific verb+resource+scope distinguishes it from sibling tools like medicaid_drug_trend (drug data) and medicaid_managed_care_summary (managed care data).

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 description provides clear context: it is for 'one state' and covers monthly enrollment and application-processing indicators. However, it does not explicitly name alternative tools for other use cases (e.g., national data or different indicator types), so it lacks explicit exclusions but is still unambiguous about its scope.

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