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

The description adds behavioral context beyond annotations by detailing permission checks and access blocks. Annotations indicate this is a mutating (readOnlyHint=false) but non-destructive action. The description does not contradict annotations and adds value by explaining preconditions for safe usage.

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 at 6 sentences and front-loads the purpose. However, the structure could be improved by separating the purpose from usage guidelines for readability. It is efficient but not perfectly organized.

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 complex tool with 14 parameters and no output schema, the description is incomplete. It lacks parameter semantics, return value information, and any example usage. The strong usage guidelines partially compensate, but overall the tool definition leaves significant 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?

With 14 parameters and 0% schema description coverage, the description fails to explain any parameter semantics. It does not clarify fields like code, type, value, timezone, etc., leaving the AI agent to rely entirely on the schema, which lacks 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 'Create a discount code for a managed community' and clarifies that 'business' and 'community' are interchangeable. However, the title 'Create Business Discount' and tool name 'create_community_discount' may cause initial confusion, slightly reducing clarity.

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 explicitly states when to use the tool, including prerequisites: check business permissions, FREE businesses cannot use, call check_business_tool_access before collecting inputs, and show grace-period warnings. It provides clear instructions on when not to proceed, making it highly actionable for an AI agent.

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