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

Annotations mark the tool as destructive and open-world, but the description does not explain any side effects, permissions, or why a remainder calculation would be destructive. 'FREE' and 'plus decided' are unexplained terms that add ambiguity rather than 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?

It is short, but the slash-separated phrasing, unexplained 'FREE:' prefix, and trailing 'plus decided' make it cryptic. Conciseness is achieved at the expense of clarity.

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?

An output schema exists, so return values need not be described, but the tool's domain logic, both required parameters, and the surprising destructive annotation remain unexplained. This is insufficient for an agent to invoke the tool confidently.

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% for both series_id and strike. The description alludes to 'strike' as a target but never defines series_id, accepted values, or what 'decided' corresponds to.

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 is a cryptic noun phrase ('what the remaining slots must average / sum to / hit') without a clear verb or resource, and 'plus decided' is undefined. It does not clearly distinguish this tool from siblings like decided_strikes or period_status.

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 when-to-use guidance, no prerequisites, and no named alternative. 'FREE:' is a cost or tier marker rather than usage direction, leaving the agent to infer context.

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