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

Annotations say readOnlyHint=false / idempotentHint=true / destructiveHint=false, which imply a mutating-but-safe call; the description adds the decisive behavioral fact that the call yields no reward anymore, which annotations cannot convey. It stops short of saying whether the call still returns success, errors, or mutates any state, so it is strong but not exhaustive.

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?

Three short sentences, front-loaded with the most important fact (the program ended). No filler; every clause either explains the deprecation or redirects the agent.

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 deprecated no-op with no output schema and mostly self-constraining params, the description tells the agent everything needed to avoid wasting a call. The only omission is what operator_url expects, but that matters little once the agent is routed away from this tool.

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 only 25% and the description adds no parameter-level meaning. The two boolean params are self-enforcing via const:true and agent_key is richly documented in the schema, but operator_url has no description anywhere in the definition, which is the remaining gap. Baseline 3 given the schema carries most of the load through const constraints.

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 the tool's actual current behavior in specific terms: the reward program has ended and the endpoint is retained only for compatibility. Combined with the title, an agent immediately understands this is a defunct claim operation, and the reference to speedbot_earning_opportunities distinguishes it from every other claim-style sibling.

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?

It explicitly gives the when-not ('no new reward is offered', program ended) and names the alternative to use instead ('Read speedbot_earning_opportunities for current availability'). Nothing about routing is left to inference.

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