Create Canvas Page

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

The description states 'Create and activate a new' which contradicts the annotation idempotentHint=true, as creating a new page each time would not be idempotent. This is a direct conflict, so the description fails to align with the annotation and receives the minimum score.

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 that front-loads the action and object. No unnecessary words or repetition, making it appropriately sized and efficient.

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 is simple, but the description omits critical details: the meaning of 'activate' and whether 'name' is required. The idempotentHint annotation suggests important behavior not reflected in the description. It does not fully inform the agent on how to invoke the tool correctly, even though an output schema exists.

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 input schema has one parameter 'name' with no description coverage, and the tool description does not mention the parameter or its optionality. Since schema coverage is 0%, the description should compensate, but it provides no additional meaning about the parameter's purpose or behavior when omitted.

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 specific verbs 'Create and activate' and clearly identifies the resource as a 'new workspace-local Canvas page.' This distinguishes it from sibling tools like rename_canvas_page or delete_canvas_page, which imply different actions on existing pages.

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 implies usage for creating a new page, and 'workspace-local' provides some context. However, it does not explicitly state when to use this tool over alternatives or mention any exclusions, such as not using it for existing pages or when certain conditions apply.

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