container_create

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

Annotations give no behavioral hints (readOnlyHint=false, destructiveHint=false). The description adds that it creates without starting, but does not disclose other behaviors like image pulling, name conflict handling, or side effects. For a creation tool, more transparency is needed.

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 concise (4 lines), front-loaded with purpose, and includes args and returns sections without waste.

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 3 parameters, one required, nested objects, and no output schema, the description is incomplete. It does not cover defaults, error conditions, or return value specifics beyond 'dict of attrs.'

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 0%, but the description adds meaning: 'image - The image to use,' 'command - The command to run when started,' 'extra_kwargs - Additional keyword arguments forwarded to ContainerCollection.create.' This partially compensates but lacks format or constraint 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 clearly states 'Create a container without starting it,' which is a specific verb+resource. It distinguishes itself from sibling tools like container_run (create and start) and container_start (start existing).

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 does not provide when or when not to use this tool versus alternatives like container_run or container_start. It only mentions that it does not start the container, offering minimal guidance.

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