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

Annotations already declare readOnlyHint=true, idempotentHint=true, openWorldHint=false, and destructiveHint=false, so the safety profile is covered. The description adds useful scope about the categories of capability returned, but does not describe the return format, pagination, or any auth/caching behavior. With annotations carrying the safety burden, this is an adequate but not rich disclosure.

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 a single compact sentence fragment that front-loads the core subject. It is appropriately sized for a simple zero-parameter capability lookup, though it could start with a clearer verb to improve scannability.

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 zero-parameter, read-only capability endpoint with no output schema, the description supplies the essential content categories an agent would want to know. It stops short of describing the exact return structure, but the annotations and simple shape make the definition sufficiently complete for correct invocation.

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?

The tool takes zero parameters, so there are no parameter semantics to document. Baseline 4 applies for a parameterless tool with full schema coverage.

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 identifies the specific resource — stores and data sources served by this deployment — and names the key subcategories (Google Play status, chart catalogs, autocomplete sources). It lacks an explicit verb like 'List' and does not differentiate itself from sibling tools such as get_dashboard, but the purpose is clear enough to distinguish from most siblings.

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 states what the tool returns but gives no explicit guidance on when to use it, when not to use it, or which sibling tools are alternatives. An agent must infer that this is a discovery/preflight tool for checking deployment coverage.

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