Create registry

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

Annotations indicate it is not read-only and not destructive, but the description adds no behavioral context beyond the title. It does not disclose whether duplicate names cause errors, whether authentication is validated, or if the creation is irreversible. The description fails to add value beyond the annotations.

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, very concise, and front-loaded with the essential action. However, it could be slightly more informative without losing conciseness, e.g., mentioning creation of a new registry rather than just 'add configuration'.

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?

Given 8 parameters including optional conditional ones (e.g., ECR fields), the description is too sparse. It does not explain parameter relationships or required groupings (e.g., type 'ecr' needs awsRegion). With no output schema, the agent is left without guidance on success behavior or return value.

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 individual parameter descriptions, so the description does not need to repeat them. The description adds no extra parameter-level insight, such as conditional requirements (e.g., ECR requires awsRegion). Baseline 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 'Add a new container registry configuration' clearly states the action (create) and the resource (registry configuration). It distinguishes from sibling tools like delete, get, list, sync, test, update, which have different verbs.

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 provides no guidance on when to use this tool versus alternatives (e.g., registry_update for modifying an existing registry). It lacks explicit context, prerequisites, or exclusions, leaving the agent to infer usage from the tool name alone.

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