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

Annotations are absent, so the description carries the full burden of behavioral disclosure. It only lists the content contained (questions, options, verdicts) but does not state whether this is a static read-only dump, whether it has side effects, or what the agent should do with the returned information. The lack of any safety or mutation hints is a notable gap.

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 very short and front-loads the key content coverage. The phrase 'Check an agent in four questions guide' is slightly awkward, but the sentence is otherwise compact and contains no filler.

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?

For a zero-parameter, static-content tool, the description gives a reasonable idea of the payload, but it does not explain how this tree relates to the sibling tools or when an agent should consult it. With no output schema and no annotations, a bit more context (e.g., 'use this to understand all branches before invoking checker_start') would make it complete.

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 has zero parameters, so the baseline is 4. There is nothing for the description to add about parameters; the description correctly focuses on content rather than input semantics.

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 states the tool provides every question, option, and verdict of the decision guide, which clearly identifies the resource and scope. It is distinguishable from siblings like checker_answer and checker_start by being the complete tree, though it lacks an explicit verb like 'retrieve' or 'return'.

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?

No when-to-use guidance is provided. The description does not mention when an agent should call this tool instead of siblings such as checker_answer or checker_start, nor does it specify whether it is meant for initial orientation, debugging, or end-to-end traceability.

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