create_membership

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

No annotations provided. Description discloses that it creates a membership, with defaults and optional parameters. However, it does not specify permissions, whether it can replace existing memberships, or effect on other data. The presence of an output schema mitigates some transparency gaps.

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?

Concise, well-structured: one-line purpose, usage example, then bullet list for arguments with clear descriptions. No redundant information.

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?

Covers all 5 parameters and their semantics with usage context. Missing details about return value (likely covered by output schema) and preconditions. Sufficient for a typical creation tool.

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 description coverage is 0%, so description fully compensates. Each parameter is explained with examples and context: tier names are config-dependent, start_date defaults to today, end_date open-ended if omitted, location_id only for multi-location clubs.

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 the action 'Assign a membership tier to a member', a specific verb+resource. It distinguishes from sibling tools like cancel_membership and update_membership.

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?

Provides an explicit usage example 'give Jane a Gold membership starting today' and explains each parameter's purpose. Missing explicit when-not-to-use or alternatives, but the example implies typical usage.

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