create_tier

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

No annotations exist, so the description carries the full burden. It explains price unit conventions and output but omits safety-related behaviors (e.g., whether creation is reversible, auth requirements, or rate limits).

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 four sentences in one paragraph, front-loading the core purpose. It is efficient but could be slightly more structured with bullet-style insights for parameters.

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 9-parameter complexity and presence of an output schema, the description addresses core constraints (price units, currency) but lacks explanations for many optional fields and potential restrictions, leaving moderate 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?

Input schema has 0% description coverage, yet the description only clarifies three parameters (name, currency, benefits, and price units) out of nine. Remaining parameters like trial_days, visibility, welcome_page_url are left undocumented.

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 begins with 'Create a tier (paid plan).' which clearly identifies the action and resource, and the parenthetical disambiguates from other tier-related tools like 'list_tiers' or 'update_tier'.

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?

No guidance is provided on when to use this tool versus alternatives such as 'update_tier' or other creation tools. There are no prerequisites, conflicts, or contextual examples.

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