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

Annotations already indicate readOnlyHint=false and destructiveHint=false, so the description's focus on creation is consistent. It adds valuable context about permission checks and access restrictions, but does not detail return values or error handling, which would be helpful.

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 paragraph that is mostly front-loaded with purpose and then provides conditional usage steps. It is concise but could benefit from breaking into separate sentences or bullet points for clarity.

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 omits what the tool returns (no output schema) and does not describe the result or side effects beyond 'Create'. For a tool with 19 parameters, more context about expected outcomes or examples would improve completeness.

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%, yet the description does not explain any of the 19 parameters. It focuses entirely on usage preconditions, leaving the meaning of fields like icon, link, size, and others entirely to the schema, which has no descriptions.

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' and the resource 'an item inside a folder-backed product', distinguishing it from sibling tools like delete_folder_item, update_folder_item, and reorder_folder_items.

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 explicit guidance on when to use the tool: after checking business permissions, calling check_business_tool_access, and handling grace periods and resubscribe links. It also states that FREE businesses cannot use this tool, clearly defining exclusions.

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