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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description usefully adds scoping behavior — only unanswered items, only current period, only seats the caller holds — but says nothing about what an empty result means or what an individual question record contains.

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 core contract (what is returned and for whom) arrives only in the second sentence, behind a long rhetorical preamble and an illustrative list of example question topics. That preamble adds flavor about the domain but delays the operational information an agent needs.

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 parameters and no output schema, the description must convey the return shape, which it does at a high level: unanswered questions, current period, caller's seats. It stops short of indicating how a returned question is answered (presumably via answer_coaching_question), which is the one gap an agent would still hit.

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 schema carries no semantics to supplement; baseline is 4. Nothing in the description is needed to disambiguate inputs, and it correctly implies the caller identity and period are implicit rather than passed.

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 second sentence gives a concrete resource and scope: it returns unanswered coaching questions for the current period, limited to seats the caller holds. However, it never names the closely-related siblings (my_coaching, answer_coaching_question), so the agent must infer the distinction from the filtering clause rather than being told it directly.

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?

"Ask these conversationally, one at a time, and never all at once" is genuine guidance on how to consume the result, and the framing establishes that the tool is for gaps OTP cannot observe. But there is no when-not clause and no pointer to alternatives such as my_coaching for broader coaching state, leaving usage only implied.

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