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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint false, and openWorldHint false, so the safety profile is covered. The description adds that the returned data includes verified code samples and a last-verified date, which is useful provenance context, but it does not disclose auth needs, rate limits, or error behavior. With rich annotations and an existing output schema, this is adequate but not exceptional.

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 one tightly structured sentence, front-loaded with the core action and followed by a clear enumeration of the returned fields. Every clause serves to describe the full record and no space is wasted.

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 simple read-by-id tool with full schema coverage, rich annotations, and an output schema, the description is complete enough to tell an agent what it returns and that it retrieves one full entry. The only gap is explicit routing guidance versus sibling search and recommendation tools, which is implied but not stated.

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 single parameter has 100% schema description coverage, so the schema already explains that the id comes from search or recommend results. The description adds no additional meaning about the id format, allowed values, or how to obtain it. Baseline 3 is correct when the schema fully documents the parameter.

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 gives a specific verb ('Return') and resource ('one solution in full') and enumerates exactly what the full entry contains. The phrase 'one solution in full' distinguishes it from list/search and recommendation siblings, so an agent can tell it is a detail-retrieval tool without opening the schema.

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?

Usage is implied: fetch the complete record for a solution id. The description does not state when to use this tool versus search_402_solutions or recommend_payment_rail, and it does not name exclusions. The schema parameter does say the id comes from search or recommend results, but that guidance is not in the description itself.

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