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

The description usefully discloses that the tool reads a frozen plan, does not automatically send messages, and does not fetch real-time private data from the original plan. However, the readOnlyHint is false while the description emphasizes '读取' (read), leaving potential side effects of redeeming the token undisclosed. It adds context beyond annotations but is not fully transparent about mutation or consumption behavior.

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 sentence with no filler, front-loading the key condition and then stating the primary behavior and exclusions. Every element earns its place, and the structure is easy for an agent to parse quickly.

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 one-parameter tool with no output schema, the description covers the trigger condition, the core read behavior, and two important non-actions. It does not specify return value format or failure behavior, but given the simplicity of the tool and the presence of idempotent and non-destructive annotations, the description is largely sufficient.

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 provides only a token pattern, and schema description coverage is 0%. The description adds that the token must be explicitly provided by the user and is a cooperation share token, which clarifies its meaning. It does not explain how to obtain the token or what happens with an invalid token, so the compensation is partial.

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 action: after the user explicitly provides a share token, read the frozen cooperation plan. It also clarifies what the tool does not do, distinguishing it from sharing, revoking, and listing sibling tools. The combination of verb, resource, and boundary conditions makes the purpose unambiguous.

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 gives a clear precondition: use only after the user explicitly provides a share token. This tells the agent when the tool is appropriate. It does not explicitly name alternative tools or state when not to use it, but the context is clear enough for a single-purpose redemption action.

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