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

The annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is established. The description adds the two-mode behavior (rewards vs flows), but does not disclose return format, pagination, or address-format expectations.

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?

A single front-loaded sentence with no filler; every word contributes to purpose and scope. It is appropriately sized for a simple two-parameter tool, though it leaves some operational details to the schema.

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 read-only tool with two parameters and no output schema, the description covers the core domain well. Gaps remain: it does not explicitly say that the view parameter selects between rewards and flows, and it omits return-value or address-format details.

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?

With 0% schema description coverage, the description must compensate. It does clarify the view enum values by saying 'per-epoch incentive rewards or delegate in/out flows', and it implies the address is a validator address. It does not explain address format or the default view behavior.

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 identifies a specific resource (Wanchain validator) and the two data categories it returns: per-epoch incentive rewards and delegate in/out flows. It is clearly distinguishable from generic address tools like get_address_flows, though it lacks an explicit verb such as 'gets' or 'returns'.

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 phrase 'for a Wanchain validator' implies the tool is for validator-specific queries and not for generic address activity. However, there is no explicit guidance about when to choose this over sibling tools like get_address_flows or get_address_activity.

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