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

Annotations already declare readOnlyHint and destructiveHint, so the description carries a lower burden. It adds value by stating 'without granting execution or result access', which is behavioral context beyond the annotations. It is consistent with the read-only annotation.

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, front-loads 'FREE STATUS', and uses only two phrases with zero waste. It is immediately scannable and efficient.

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?

For a simple read-only inspect tool with one parameter and no output schema, the description is mostly adequate. It covers purpose and behavior but does not describe the return format, potential errors, or any prerequisites. Given the simplicity, a 3 reflects acceptable completeness with room for improvement.

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 0%, so the description must compensate. It only says 'by identifier', which adds minimal meaning beyond the parameter name 'id'. It does not clarify what kind of identifier, constraints, or format. A single-parameter tool still benefits from a clearer explanation.

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 states a specific verb ('Inspects'), a resource ('entitlement state'), and a scope ('by identifier'). It also differentiates from sibling tools by explicitly noting it does not grant execution or result access, making its purpose distinct.

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. It does not mention conditions, exclusions, or sibling names. The phrase 'FREE STATUS' hints at a lightweight check, but the description lacks clear routing information.

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