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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only says 'check whether,' suggesting a read-only connectivity test, but it does not describe what happens during the check, what the result looks like, or whether network calls or timeouts are involved.

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?

A single, front-loaded sentence with no filler. Every word adds meaning, and it is appropriately sized for a zero-argument utility.

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 no-parameter tool, the description is sufficient to invoke it, but it does not explain the expected result format, how to interpret failures, or how this relates to the sibling discovery tools. Given no output schema and no annotations, a bit more context would help an agent use 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?

The tool has zero parameters, so the schema leaves no semantic gap to fill. The description clarifies what the check targets (public discovery registries), which is useful context even though no arguments are needed.

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 action ('Check whether') and a specific subject ('NEO can reach public discovery registries'). It identifies this as a connectivity readiness check, which is distinct enough from most siblings, though it does not explicitly contrast with near-neighbors like neo_discover or verify_mcp_endpoint.

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 guidance is provided about when to run this tool versus alternatives such as neo_discover or verify_mcp_endpoint. The word 'preflight' implies a pre-check, but there is no explicit context, precondition, or exclusion stated.

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