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

Beyond the annotations, the description explains what the agent receives (greeting wording and a link), what it should do with the link (show it to the user), and where the actual card image is rendered (on the external page). This prevents the common mistake of treating the link itself as the image. It aligns with readOnlyHint and idempotentHint.

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 two focused sentences with the key output and user-facing instruction front-loaded. There is no filler; every clause earns its place.

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?

With no output schema, the description correctly explains the return values: greeting wording and a link, with the card produced on the target page. It also covers how to present the URL. A small gap is that it does not describe the expected format or structure of the returned wording, but this is minor given the schema covers inputs fully.

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 parameters are already well documented in the schema. The main description adds no parameter-specific meaning beyond the schema, so the baseline score of 3 is 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 states a specific verb and resource: compose an Islamic greeting card and return the wording plus a link to the finished card. It is clearly differentiated from sibling listing tools like list_greeting_card_occasions, and the title aligns tightly with the described behavior.

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 intended use is implied clearly: generate a greeting card for occasions like Ramadan, Eid, or Friday. However, it does not explicitly state when to use it versus alternatives or when not to use it, though no competing sibling tool exists for card creation.

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