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

Annotations already cover the safety profile (readOnlyHint=true, destructiveHint=false), and the description adds meaningful context beyond them: the OAuth/permission requirement and the fact that the payload includes any step only the person can perform, which implies partial results the caller cannot complete.

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 compact sentences with no filler; the return contents are stated before any caveat. The auth sentence leads, which slightly buries the purpose, but nothing in the text is wasted.

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?

No output schema exists, and the description compensates by enumerating the key returned fields and the unusual 'step only the person can do' element. For a one-parameter read with annotations carrying the safety profile, the only real gap is how to obtain a valid case_id.

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 is the only place semantics could be added. It mentions case_id but adds no format, constraints, or where the identifier comes from (e.g., from list_my_cases), leaving the one parameter under-explained despite a maxLength of 200 in the schema.

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 (returns one case by case_id) and names exactly what comes back: current status, verification status, and any user-only step. It is distinguishable from list_my_cases by the singular, id-keyed scope, though it never names that sibling explicitly.

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?

Gives a prerequisite (OAuth plus the 'share_results' permission) but no when-to-use/when-not guidance. An agent must infer that this is the single-case detail lookup versus list_my_cases or get_removal_route; the usage is implied rather than stated.

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