cvp_breakeven__margin_of_safety

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

With no annotations, the description carries the full burden of behavioral disclosure but provides none. It does not state if the tool is read-only, requires permissions, or what the output represents beyond a 'ratio'.

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 a single sentence but is under-specified. It fails to earn its place by omitting critical information, making it insufficient rather than concise.

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?

Even for a simple two-parameter tool, the description lacks completeness. It does not explain the formula or unit of the result, and with no output schema, the agent is left guessing what 'ratio of actual sales' means.

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 description coverage is 0%, and the description does not explain the parameters 'actual_sales' or 'breakeven_sales_value'. It adds no value beyond the schema's property names.

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 'Returned as a ratio of actual sales' is vague and does not explicitly state what the tool calculates. The name 'margin_of_safety' suggests the margin of safety ratio, but the description fails to confirm this or distinguish it from sibling tools like breakeven_sales or contribution_margin.

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 guidance is provided on when to use this tool versus alternatives such as breakeven_sales or degree_of_operating_leverage. The description lacks context for appropriate usage scenarios.

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