ibmcloud_cr_namespaces

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only states the action 'List' without mentioning whether authentication/scoping is required, whether output is paginated, or that it is a read-only operation. This is minimal disclosure beyond the bare intent.

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 sentence containing exactly the essential information—verb and object—with no filler or redundant phrasing. It is appropriately concise for a parameterless list tool.

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 tool with no parameters and no output schema, this description adequately conveys the core function for selection and invocation. It could mention the return format (e.g., a list of namespace names), but the verb 'List' already implies a listing result, so the omission is not critical.

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 already fully covers parameter semantics (vacuously). The baseline of 4 applies, and the description adds no unnecessary parameter details.

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 uses the specific verb 'List' and identifies the resource as 'Container Registry namespaces', clearly distinguishing it from sibling tools like ibmcloud_cr_namespace_add (which adds namespaces) and ibmcloud_cr_images (which lists images). This makes the tool's function unambiguous.

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?

Usage is implied by the verb 'List'—the agent would call this when needing to enumerate namespaces—but there is no explicit guidance about when to prefer this over related tools like ibmcloud_cr_images or ibmcloud_cr_quota. No alternatives or exclusions are mentioned.

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