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

No annotations are provided, so the description must disclose behaviors. It mentions the data source (period-of-performance end) and that it provides a winner prediction. However, it does not detail how predictions are made, potential rate limits, or whether the operation is read-only (though listing implies read). Adequate but not rich.

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 two sentences, front-loading the core purpose. Every word adds value: 'List', 'EXPIRING', 'horizon window', 'winner prediction', 'Filter by NAICS and agency'. No fluff or redundancy.

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?

Given six parameters and no output schema, the description covers the main purpose and filtering but does not detail default values or the structure of the returned data (e.g., fields like contract ID, amount). It could mention window floor/ceiling explicitly. Still, it provides enough for basic use.

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 coverage is 83% (only agency lacks description). The description adds meaning by explaining the horizon window concept (min/max days) and filters (NAICS, agency). It reinforces the parameters without repeating schema entirely, providing useful context beyond the schema.

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 clearly identifies the tool as listing expiring federal contracts with winner predictions, specifying filtering by NAICS and agency. It distinguishes from sibling tools by calling it 'the recompete pipeline feed', which implies a broad listing versus per-contract prediction.

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?

The description states when to use: to list expiring contracts within a horizon window with predictions. It does not explicitly mention when not to use or alternatives, but the context is clear enough that an agent can infer its use case. Sibling tools are not contrasted, which slightly reduces the score.

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