create-container-registry-auth

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

The description discloses that passwords are 'stored as a secret', adding behavioral context beyond annotations (readOnlyHint=false, openWorldHint=true). However, it does not mention side effects, permissions required, or whether credentials are validated upon save.

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, front-loaded sentence with no wasted words. It efficiently communicates the tool's purpose.

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 creation tool without an output schema, the description is mostly complete. It could briefly mention that the tool creates a secret resource or what happens upon success, but the current text is sufficient for an experienced user.

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?

Schema coverage is 100% with detailed descriptions for all 3 parameters. The description does not add new meaning beyond the schema, so baseline score of 3 is appropriate.

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 a specific verb ('Save'), names the resource ('container-registry credentials'), and states the goal ('so pods and endpoints can pull private images'). It clearly distinguishes from sibling tools like delete-container-registry-auth or list-container-registry-auths.

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 implies usage for enabling private image pulls but does not provide explicit when-to-use vs when-not-to-use guidance or mention alternative tools. The context is clear enough from sibling tool names, but no exclusions or prerequisites are stated.

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