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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so safety and repeatability are covered. The description adds the useful detail that the record's payload includes tasting profile, pairings, price, and community ratings, but says nothing about behavior on a missing/ambiguous bottle or lookup ambiguity between name and UUID.

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?

Two tight sentences with zero filler, and the payload summary is front-loaded before the input note. Every clause carries information.

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 one required parameter and no output schema, the description usefully enumerates what comes back, which is exactly the gap structured data leaves. It stops short of covering failure modes or how an ambiguous name resolves, but it is otherwise adequate for a simple lookup tool.

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 the single parameter is already documented as 'Bottle UUID or a name like Eagle Rare 10'. The description restates the dual ID-or-name acceptance without adding format rules, disambiguation behavior, or normalization details 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?

States a specific verb and resource ('Detailed record for one bottle') and enumerates the record's contents (tasting profile, flavor notes, pairings, price, ratings). It implicitly contrasts with the list-oriented siblings like search_bottles and trending_bottles by scoping to a single bottle, but never names an alternative explicitly.

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 phrase 'Accepts a Pour Picks bottle ID (UUID) or a bottle name' implies you call this when you already have an identifier, which distinguishes it from search_bottles by inference only. There is no explicit when-to-use, when-not-to-use, or named alternative guidance.

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