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

No annotations are provided, so the description carries the full burden, yet it says nothing about whether this is a pure computation, what inputs are expected, or what is returned. A definition this thin for a tool with zero annotation coverage fails to disclose any behavioral context.

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?

Extremely short, but under-specification rather than conciseness — the single tautological sentence gives an agent no actionable content.

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 two-parameter financial metric tool with no annotations and no output schema, the description is completely inadequate — it neither explains the formula, the input semantics, nor the return shape.

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 schema description coverage is 100% for both parameters (dividends, netIncome), so the schema itself carries the semantics. However, the description adds no meaning beyond the schema (e.g. dividend payout vs. retained-earnings framing), so the baseline 3 is appropriate.

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?

"Retention Ratio: Ratio of retention" is essentially a tautology — it restates the tool name without specifying what is computed (retained earnings / net income) or what it returns. There is vague gesture at a finance metric, but no verb+resource specificity that would let an agent distinguish it from the many other ratio tools in the sibling list.

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?

No when-to-use, when-not-to-use, or alternative is given. The description provides zero routing guidance among the ~500 financial/ratio siblings.

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