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

The description discloses the automatic label 'keep-mcp' as a behavioral trait not covered by annotations. It does not mention return values or error handling, but for a simple create operation this is acceptable.

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 extremely concise, consisting of two short sentences, and conveys the essential information without any fluff.

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?

Given the simplicity, the description covers the main action and a key side effect (labeling). It omits return details, but that may be acceptable for a create operation. It is mostly complete for the context.

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 schema has 3 parameters (items, title, account) with no descriptions. The description explains only 'items' and its structure, leaving 'title' and especially 'account' unclear. This is incomplete coverage.

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 clearly states it creates a checklist in Google Keep, uses the verb 'Cria' (creates), and specifies the resource. It distinguishes from sibling tools like keep_create_note by mentioning 'checklist'.

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?

While not explicit, the description implies usage for creating checklists, and the sibling list shows keep_create_note for regular notes. The mention of automatic labeling suggests a side effect but does not explicitly contrast with alternatives.

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