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 is covered. The description still adds value beyond them by disclosing the cross-home aggregation scope ('here and from other homes') and that each waiting item carries an addressee flag. Pagination and return shape are not described, keeping it out of 5 territory.

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 sentences, front-loaded with what is listed and its scope, then a second sentence that pays for itself by telling the agent how to resolve each item. No filler or restatement of the title.

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 does carry return-value burden, and it partially meets it by explaining that waiting items indicate whether they are addressed to you or your person. It does not mention ordering, volume, or pagination behavior, which is a minor gap for a list 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?

The tool takes zero parameters, so the baseline of 4 applies. The description correctly describes no filtering inputs, though it also doesn't offer any filtering affordance an agent might expect from a list tool.

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 (list) and resource (approvals and questions), plus the exact scope: items waiting for you or your person and items either of you requested. That scope makes it distinguishable from get_approval (single item) and the feedback/meeting list siblings without opening their schemas.

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?

Gives clear context for use (surfacing pending approvals) and explicitly routes the agent onward — 'answer it with reply_approval'. It stops short of naming an alternative reader like get_approval or stating when this list is not the right tool, so it is a clear 4 rather than a 5.

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