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

The annotations already indicate a destructive, non-read-only operation, and the description adds no further behavioral context such as whether the old key is immediately invalidated, whether permissions are required, or what the side effects are. It neither contradicts annotations nor enriches them.

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, concise sentence that front-loads the core action. It has no fluff, but it is so minimal that it misses opportunities to add helpful context without becoming verbose.

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 the simple parameter set, destructive annotation, and presence of an output schema, the description is minimally viable but not complete. It could mention the impact of rotation (e.g., old key becomes invalid) to better prepare the agent for consequences.

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 input schema fully documents the key_prefix parameter with a clear description ('First 8 chars of the key to rotate'). Since schema coverage is 100%, the description does not need to add parameter-level detail, and it does not. This meets the baseline for schema-driven semantics.

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 uses a specific verb 'rotate' and identifies the resource 'API key', making the tool's purpose clear. It does not explicitly distinguish this from sibling tools like thinkneo_manage_secrets, but the action is specific enough to avoid confusion.

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?

There is no guidance on when to use this tool, what prerequisites exist, or how it compares to alternative tools. The description simply states the action without any contextual 'when' or 'when-not' information.

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