get_monthly_registration

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

With no annotations, the description carries the burden of behavioral disclosure. It communicates that the operation returns data, and it transparently documents default month/year behavior and API key fallback. However, it does not mention whether there are side effects, required permissions, or what the status values mean, which leaves meaningful gaps for a tool with zero annotations.

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 compact and front-loaded with the purpose, followed by a neat argument list. Every sentence adds useful information and no filler is present.

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?

The description covers the core purpose and all parameters, and an output schema exists so return-value details do not need to be repeated. It is mostly complete for a simple read tool, though a brief usage note distinguishing it from get_registration would make it fully complete.

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 coverage is 0%, but the description compensates fully by explaining all three parameters: month ranges 1-12, year is a four-digit year, both default to current values, and api_key falls back to an environment variable. This adds significant meaning beyond the bare schema types.

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 clear verb and resource: 'Return the current monthly registration status.' It is specific enough to indicate a read operation on monthly registration data. However, it does not explicitly differentiate itself from the sibling get_registration or explain what 'status' includes, so it falls short of a 5.

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 no guidance on when to use this tool over alternatives such as get_registration, check_registrations, or create_monthly_registration. It only documents default behavior for the month/year arguments, not the intended selection context.

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