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

The description adds useful behavioral context beyond the annotations: the workspace is private, shared, owned by the caller, and the call returns a workspace_id. However, it doesn't disclose potential side effects, authentication requirements, or what happens with the optional parameters. Annotations already indicate the operation is mutating but not destructive.

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 followed by a short return-value statement. Every word contributes to the core meaning, and there is no fluff or repetition.

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?

While the core action and return value are clear, the tool has two undocumented optional parameters, no output schema, and no usage or prerequisite guidance. An agent invoking this tool correctly would still need to infer what 'api_token' is for and whether it must be supplied.

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 0%, so the description must compensate for the lack of parameter documentation. It does not mention 'name' or 'api_token' at all, leaving the agent to guess their meaning and necessity. This is a significant gap for a tool with two 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 clearly states the verb ('Create'), the resource ('workspace'), and key characteristics ('private shared', 'that you own'). It also specifies the return value ('workspace_id'), making the tool's purpose unambiguous. It doesn't explicitly distinguish from sibling tools, but no sibling appears to create workspaces.

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 gives no explicit guidance on when to use this tool versus alternatives, no prerequisites, and no exclusions. Usage is only implied by the tool name and the action itself, which is insufficient for an agent deciding between this and related tools like create_invite or sign_up.

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