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

With no annotations, the description carries the behavioral burden well: it explains raw/unmapped status codes, warns against misreading them, names Play Console as the authority, and specifies the fallback `submission_state_known: false` when history cannot be read. It does not explicitly state read-only behavior or auth requirements, so it falls short of fully 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?

The description is front-loaded with the core question and the sibling distinction, and most sentences earn their place by explaining trust, raw status codes, and fallback behavior. It is somewhat verbose with anecdotal warning language, but not wasteful.

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 no output schema and no annotations, the description still names the key return field `ever_submitted_for_review` and the fallback `submission_state_known: false`, which gives the agent a usable mental model of the result. It does not describe the full response shape, but it covers the behavior an agent most needs to avoid misinterpretation.

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%, so the schema already documents all four parameters, including the required account identifier and app/developer IDs. The description adds no parameter-specific meaning beyond what the schema provides, making the baseline 3 appropriate.

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 answers whether the app has ever been sent for Google Play review, naming the key field `ever_submitted_for_review`. It explicitly distinguishes this from sibling `get_pre_submit_status` and explains why that sibling is insufficient for this purpose.

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?

It gives a clear usage context by saying this answers what `get_pre_submit_status` cannot, and warns not to interpret raw status codes as a verdict. It does not spell out a full when-to-use/when-not-to-use rule set, but the sibling differentiation is explicit enough.

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