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

Annotations already declare readOnlyHint, idempotentHint, and non-destructive behavior, so the description adds value by stating the required permission and warning that unknown payout receipt is neither zero nor confirmed settlement. It does not describe the return format, but with annotations covering safety, this extra context is a meaningful supplement.

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 first two sentences are efficient and front-loaded, but the third sentence ('Unknown payout receipt is not zero or confirmed settlement') is cryptic and may confuse without further context. It is concise overall, but that sentence does not clearly earn its place.

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 zero-parameter list tool with full annotation coverage and no output schema, the description covers what the tool returns, the required permission, and a subtle settlement caveat. It lacks explicit alternative guidance, but is otherwise sufficient for an agent to invoke it.

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 tool takes zero parameters, so there are no parameter semantics to explain. Baseline for 0 params is 4; the description appropriately focuses on purpose and permission context instead.

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 verb ('Read') and resource ('owner’s original creator/supplier orders') and clarifies these are website orders, not separate Agent orders. This distinguishes it from the Agent-order concept but does not explicitly differentiate it from sibling tools like evuun_get_business_order or evuun_list_business_supplies.

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 mentions a prerequisite ('with explicit orders:read permission') and clarifies the order type, but gives no explicit guidance on when to choose this tool over alternatives (e.g., a single-order getter or supply list). Usage is implied rather than stated.

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