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

With no annotations provided, the description carries the behavioral burden and does well by disclosing that the data is PUBLIC, curator-ingested, partial, and not all government procurements. It also warns that an award does not prove who else lost or why. It does not cover authentication, rate limits, or return format, but the major scope limitations are clearly surfaced.

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 three sentences and front-loads the core purpose before adding important scope caveats. It is efficient overall, though the repeated emphasis on 'curator-ingested' and 'partial curated KB' is slightly redundant.

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 search tool with five optional parameters, no annotations, and no output schema, the description provides enough scope and limitation context for correct selection and invocation. It does not explain return structure or pagination behavior, but the schema covers parameter usage and the description covers the key data caveats.

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 100%, so all five parameters are already documented in the schema. The description does not add any parameter-specific meaning beyond the structured fields, which is acceptable at baseline 3 when the schema does the heavy lifting.

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 uses a specific verb ('Search') and clearly identifies the resource: public, curator-ingested historical procurement bid outcomes, including winners and documented unsuccessful bidders. It distinguishes itself somewhat from a pure awards lookup by emphasizing bid outcomes and evidence, but it does not explicitly name sibling tools such as contracts_search_awards.

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 caveat that 'an award is never proof of which other firms lost or why' implies this tool is appropriate when seeking documented bid outcome details rather than inferring losers from awards. However, it does not explicitly state when to choose this tool over contracts_search_awards or contracts_search_bid_research, nor does it list exclusions.

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