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

Annotations already disclose readOnlyHint, idempotentHint, and destructiveHint=false, so the safety profile is covered. The description adds one piece of behavioral context beyond that: results are limited to data visible to the linked Market Brew account. It says nothing about behavior on a missing/invalid id or about the shape of the response.

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 short sentences with no filler; the usage trigger is front-loaded. It is efficient, though the first sentence spends words restating the tool name rather than adding 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 no output schema, the description carries the burden of explaining what is returned, and it only gestures at account-scoped visibility without describing the payload or error cases. For a single-entity fetch with an undocumented id parameter, an agent lacks enough to call it confidently.

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% and the single required 'id' parameter (string or number) is completely undocumented. The description does not state what the id refers to, where to obtain it, or how it relates to ids returned by list_knowledge_bases, so it fails to compensate for the schema gap.

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 names a clear verb and resource ('get a Knowledge Base'), but it largely restates the tool name and title rather than sharpening the purpose. It does not distinguish this single-record fetch from siblings like list_knowledge_bases or count_knowledge_bases. The scope note about Market Brew account visibility is the only genuinely informative clause.

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?

'Use this when the user asks to get a Knowledge Base' is implied usage that simply echoes the name, giving no real selection criteria. There is no mention of when to prefer this over list_knowledge_bases or count_knowledge_bases, nor any prerequisite such as needing a valid id.

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