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

With no annotations, it provides useful constraints: 'at least one is required' for resource_url/file_url, price > 0, and access_level defaults to public. However, it does not disclose other defaults (is_published, resource_type) or side effects, limiting transparency.

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?

Two sentences, front-loaded with purpose, and every clause adds information. Extremely concise without sacrificing 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?

For a 12-parameter tool with no output schema and no annotations, the description is somewhat thin. It covers key usage constraints but omits several default behaviors and parameter roles, making it adequate but not comprehensive.

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 roughly 50%, and the description adds meaning for a few parameters (e.g., the mutual exclusivity of resource_url/file_url, price positivity). But it ignores many parameters like folder_id, is_premium, or cover_image_url, so it only partially compensates for the schema gaps.

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 starts with a clear verb+resource: 'Add a resource to the community library.' This distinguishes it from sibling create tools like create_course or create_post, making its purpose unambiguous.

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?

It implies usage for community library resources but does not explicitly mention when to prefer this tool over alternatives or state exclusions. The guidance on choosing between resource_url and file_url is parameter-level, not tool-level.

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