List Price Subscriptions

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

Adds context beyond annotations: subscriptions are 'PERSISTENT', 'recurring', 'account-tied snapshot jobs'. No contradiction with readOnlyHint and openWorldHint.

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?

Three concise sentences, front-loaded with main action. No extraneous words.

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 zero-parameter list tool with no output schema, description covers purpose, usage, and prerequisites adequately.

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?

No parameters; schema coverage 100%. Description confirms 'No parameters needed.' Baseline 4 is appropriate.

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?

Clearly indicates verb 'List' and resource 'PERSISTENT price subscriptions'. Distinguishes from sibling tools like opa_list_price_alerts and opa_list_commodities.

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?

States when to use (when user asks what they're monitoring or to find watch id) and mentions API key requirement. Lacks explicit when-not-to-use, but acceptable for a simple list tool.

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