pull_image

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 without noting that pulling downloads data into the environment, may require registry credentials, can fail if the image does not exist, or may overwrite an existing tag. This is a significant gap for a side-effectful operation.

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 concise sentence with no unnecessary words. It is front-loaded with the verb and resource, making it easy to parse quickly. Every word earns its place.

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?

The tool has only 2 parameters and no output schema, and the description does state the core purpose. However, it lacks behavioral context such as side effects and failure conditions, and provides no usage guidance. While the basics are covered, important contextual details are missing, preventing a higher score.

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 schema covers 100% of parameters with descriptive comments (image name and environment ID), so the description adds no additional parameter information. The baseline of 3 is appropriate because the schema does the heavy lifting and the tool has only two simple parameters.

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 'pull' and the resource 'Docker image', also indicating the source 'from a registry'. This clearly distinguishes it from sibling tools like delete_image and list_images, and it is 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?

The description provides no guidance on when to use this tool versus alternatives. It lacks any context about prerequisites (e.g., environment must exist), conditions (e.g., image not already present), or alternatives such as list_images or inspect_image.

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