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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It reveals nothing about side effects, return format, assumptions, edge cases, or computational behavior. The text adds zero information beyond the tool name.

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 extremely short, but this is under-specification rather than conciseness. It contains no front-loaded meaningful content or structural organization that helps 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 finance-related tool without annotations or an output schema, the description is completely inadequate. It does not explain what inputs are conceptually needed, what result is returned, how unlevered beta differs from levered beta, or any formula/assumption context.

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 has zero parameters and the schema coverage is 100%, so there is no parameter ambiguity for the agent to resolve. The baseline of 4 applies because there are no parameters that could require clarification.

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 "Beta Unlevered: Beta Unlevered" is a pure tautology that restates the tool name without providing a verb, resource, or function. An agent cannot tell whether this tool calculates, converts, explains, or looks up a beta-unlevered value.

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 about when to use this tool or how it differs from the closely related sibling x402-beta-levered. The description provides no context, prerequisites, exclusions, or alternative routing, leaving the agent to guess.

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