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

Annotations already indicate readOnlyHint=false and destructiveHint=false. The description adds value by specifying that the tool generates a draft (not final product) and requires permission checks. It also notes FREE businesses cannot use it, adding behavioral context beyond the annotations.

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 (3 sentences) and front-loaded with the core purpose. The following sentences provide essential usage instructions without excess verbosity. Some structure could be improved (e.g., bullet points), but it is not verbose.

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 the tool's complexity (2 required params, no output schema), the description covers purpose and usage guidelines well but lacks parameter descriptions and output details. The 'LPBE AI generation flow' is not explained, and the return format is not mentioned. Moderately complete but with notable gaps.

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%, with no descriptions for communityId or coverMediaItems. The description only mentions 'from cover media' but does not explain the structure or format of coverMediaItems or what communityId represents. The description fails to compensate for the lack of schema documentation.

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 'generate' and specific resource 'physical product draft from cover media using the LPBE AI generation flow'. It differentiates from siblings like 'create_physical_product' (final product) and 'generate_physical_product_cover_media' (cover media only) by specifying the draft generation and AI flow.

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 preconditions: check business permissions, call check_business_tool_access before inputs, show grace-period warning and resubscribe link, and never proceed when blocked. It does not mention alternatives like 'create_physical_product' for final creation, but the instructions are clear and actionable for when to use this tool.

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