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

Annotations already declare readOnlyHint=true and idempotentHint=true, so the description doesn't need to restate safety. It adds little about actual behavior, such as that only four seasons are accepted, and confuses with the 'month' promise, which is a behavioral limitation not disclosed.

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 concise, front-loading the core purpose in the first sentence. The trigger list is helpful but somewhat redundant and includes a misleading 'March' example, which wastes a bit of space.

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 simple tool with strong annotations and schema, the description is mostly sufficient. However, it fails to mention that only the four seasons are valid and does not clarify what the response looks like. The 'month' contradiction is a notable gap that could lead to incorrect usage.

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 has 100% coverage for both parameters, so baseline is 3. The description does not add useful parameter semantics and actively misleads by implying 'month' is a valid input when the only parameter is an enum of four seasons.

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 it finds recipes for a specific season, with a verb and resource ('Find recipes perfect for a specific season or month'). However, the mention of 'month' is misleading because the schema only supports a season enum, which introduces ambiguity.

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 TRIGGERS provide explicit example queries like 'fall recipes' and 'Thanksgiving ideas', giving clear context on when to use the tool. However, there is no mention of alternative tools or when not to use it, and one trigger ('seasonal dishes for March') implies month support not present in the schema.

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