game_vapi_health

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

With no annotations, the description carries the full behavioral burden and does so well. It discloses that this is a public read, makes one logical GET, does not auto-fetch continuation pages, limits array responses, reports truncation, and refuses oversized records without partial fields. It also prevents over-interpretation by noting it is not a route-availability claim.

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 opening sentence is clear and front-loaded, and the health-read caveat is useful. However, 'Required inputs reflect tool policy as well as measured upstream requirements' and 'Other declared filters are forwarded as supplied' are generic statements that add little for a zero-parameter tool and could mislead an agent into expecting inputs that do not exist.

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 simple health endpoint with no parameters, the description is largely complete: it names the returned metadata, notes the single-request behavior, and documents truncation limits. A small gap is the absence of any detail about response status values or error behavior, but with no output schema this is not a major omission.

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 and no parameter documentation is needed. The description does add a note that required inputs reflect tool policy and upstream requirements, but since the schema is empty this is not critical. It neither confuses nor substantively improves parameter understanding.

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 a specific verb and resource: 'Read the public VAPI health root'. It also clarifies that this reports status and application/version/environment metadata, and explicitly distinguishes this from a claim about game route availability. This clearly separates it from the many data-route siblings.

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?

The description gives clear context that this is a health read and warns it is not a guarantee that all game routes are available. However, it does not explicitly say when to choose this tool over alternatives or name any sibling as the right choice for route-level status checks. Usage is implied rather than stated.

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