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

Annotations already declare this as read-only, idempotent, non-destructive, and closed-world. The description adds useful behavior beyond annotations: the listing is newest first, covers the whole team's briefs on Buyer/Company, returns artist/market/verdict/grade/date, and filters case-insensitively. It does not explain limit/pagination behavior, so it is strong but not exhaustive.

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 compact and front-loaded: purpose and scope first, returned fields next, filter behavior after that, and the get_brief alternative last. Every clause adds useful information with no repetition of structured fields.

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?

With rich annotations and an output schema, the description supplies the important call context: scope, ordering, filter semantics, and the full-memo alternative. The main remaining gap is limit/pagination semantics, which keeps it from being fully complete.

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%, so the description must compensate. It meaningfully describes the artist and market filters, including case-insensitive matching, but it never explains the limit parameter's behavior or bounds. Partial compensation for a three-parameter tool is a 3.

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?

States a specific verb and resource: listing recent briefs, with explicit scope, ordering, and returned summary fields. It also distinguishes itself from get_brief, which returns the full memo, so an agent can select it without opening another 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?

The description tells the agent when to use this tool for recent summary rows and explicitly routes full-memo needs to get_brief. It also notes optional artist/market filters, making the common selection path clear.

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