Create volume

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

Annotations already indicate readOnlyHint=false (modifies) and destructiveHint=false (not destructive), which the description does not contradict. However, the description adds no additional behavioral context, such as what happens if a volume with the same name exists, permissions required, or side effects. With minimal annotation value added, a score of 3 is appropriate.

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, clear sentence with no redundant words. It is front-loaded and concise, but could be slightly expanded to include essential behavioral or usage context without losing brevity.

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 description is minimal for a creation tool with 5 parameters, no output schema, and no behavioral notes. Important details like uniqueness constraints, driver requirements, or labels formatting are missing, leaving the agent potentially underinformed.

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 description coverage is 100%, meaning all 5 parameters (environmentId, name, driver, driverOpts, labels) are already documented within the input schema. The description adds no extra meaning or usage hints beyond what the schema provides.

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 'Create a new Docker volume' clearly states the verb (Create) and resource (Docker volume), making the tool's purpose immediately obvious. It effectively distinguishes itself from sibling volume tools like arcane_volume_delete, arcane_volume_list, etc.

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, such as importing volumes or using Docker's volume create. No prerequisites, scenarios, or exclusions are mentioned, leaving the agent without context for proper selection.

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