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

With no annotations, the description carries the full burden of behavioral disclosure. It says the tool is 'the first question' but does not state what happens when invoked—whether it returns a question, initializes a session, or produces any output. The description is a static characterization rather than a disclosure of behavior, leaving side effects and return behavior unexplained.

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 a single short sentence, so it is compact. However, it is on the edge of under-specification, omitting an action verb and any behavioral detail. It is not overly verbose, but it does not fully earn its place as a complete tool definition.

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?

The tool is simple (no parameters), but there is no output schema and no annotations. The description does not mention return values, the overall decision guide flow, or how this first question connects to checker_answer or checker_tree. An agent would be left guessing at the interaction pattern beyond 'first question.' The sibling names hint at a flow, but the description itself is incomplete for a confident invocation.

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 schema and description have nothing to clarify. The baseline of 4 applies because no parameter explanation is needed, and the description does not need to compensate for any undocumented parameters.

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 tool as 'The first question of the Exit readiness checker decision guide,' which names a specific resource and its position in a sequence. However, it uses a noun phrase rather than a verb, so it does not explicitly state an action like 'starts the guide' or 'returns the first question.' It is distinguishable from siblings by the word 'first,' but the lack of a clear verb makes the purpose slightly vague.

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?

There is no guidance on when to use this tool versus alternatives. The sibling list includes checker_answer and checker_tree, which likely belong to the same flow, but the description does not say 'use this to begin' or 'use instead of...'. The 'first question' wording weakly implies sequencing, but no explicit usage direction or exclusions are provided.

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