get_subscription_rate_plan

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

No annotations. Description only states GET operation, implying read-only, but doesn't confirm idempotency, error handling, or side effects. Adequate but lacks explicit behavioral context.

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?

Efficient single sentence plus endpoint. No wasted words, but could benefit from brief additional context.

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?

No output schema and description doesn't mention return format. For a retrieval tool, missing output details can hinder proper handling of results.

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 covers both parameters with clear descriptions. Description adds no extra meaning beyond what schema provides.

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?

Description explicitly states 'Get a single rate plan on a subscription' with exact HTTP endpoint. Clearly distinguishes from siblings like 'list_subscription_rate_plans' and other get tools.

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?

Minimal guidance on when to use. Context implies use when you have specific IDs, but no explicit comparison to siblings like 'list_subscription_rate_plans' is provided.

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