iaas_get_about

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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and openWorld, so the safety profile is covered elsewhere. The description contributes a fact annotations can't convey — what the payload contains (supported and latest API versions) — but says nothing about response shape or size. Acceptable, but thin.

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 purpose sentence is front-loaded, but roughly two-thirds of the text is copied boilerplate about version negotiation, including a sample call to a different endpoint (/iaas/api/network-profiles) and a note that 2019-01-15 is deprecated. None of that earns its place for a zero-parameter GET that only returns metadata.

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 read-only, zero-param endpoint with no output schema, the description gives enough to know the returned content is API version metadata. However, no output schema exists and the description never characterizes the response (fields, format), relying instead on boilerplate that doesn't apply.

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 and the schema sets additionalProperties=false, yet the description repeatedly asserts a 'version parameter' is mandatory for some endpoints and 'highly recommended' for others. For a no-param tool that is actively misleading, as an agent could believe it must send apiVersion when doing so would fail schema validation.

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?

States a clear verb+resource ('Get about page') and immediately clarifies what the page contains: supported API versions and the latest API version. That distinguishes it from the CRUD-style siblings, though it does not differentiate itself from other namespace 'about' endpoints (e.g. project_get_about, blueprint_get_about).

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 explicit when-to-use or when-not-to-use guidance is given; the reader must infer that this is a discovery/version-negotiation endpoint. The bulk of the text discusses a version parameter that this tool does not even accept, which adds noise rather than routing guidance.

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