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

Annotations already declare readOnlyHint=true and openWorldHint=false, so safety is covered. The description adds genuinely non-obvious behavior: the default filters out already-answered questions, and the response includes type, options/scale, hint, and current answer. That default-filtering trait is exactly the kind of thing an agent would otherwise get wrong.

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?

Very compact, with no wasted words; the default-filter behavior is placed at the end where it reads as a qualifier. The noun-phrase opening is slightly awkward for an action tool but the sentence is dense with relevant content.

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?

There is no output schema, and the description does a reasonable job of enumerating returned fields (type, options/scale, hint, current answer), which is a genuine strength. What remains missing for a 3-parameter read tool is the meaning of checklist_id vs section_id and whether sections are grouped in the result.

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 coverage is only 33% – just `all` is documented inline. The description partially compensates by explaining the unanswered-by-default behavior (clarifying `all`) and by referring to sections (hinting at section_id), but checklist_id and section_id remain semantically undefined in both places. Adequate but with a real 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 identifies the specific resource (the questions of a checklist, organized by sections) and enumerates the payload fields, which is more than a restatement of the name. However, it is a bare noun phrase with no verb, so an agent must infer that this is a read/list operation rather than something else involving questions. It does not distinguish itself from finish_checklist or save_checklist_answers, which operate on the same resource.

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?

"By default only the unanswered ones" implies the retrieval scenario (finding outstanding items), but there is no explicit when-to-use guidance and no mention of alternatives such as save_checklist_answers or finish_checklist. An agent must infer from the tool name and sibling names which one to call.

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