create_messaging_profile

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

No annotations are provided, so the description carries the full burden. It clearly states the creation action and lists configurable settings with defaults, which is helpful. However, it does not disclose potential side effects (e.g., cost implications), required permissions, validation rules, or whether creation is idempotent. This is a moderate disclosure but leaves 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?

The description is well-structured with a one-line purpose statement followed by a clearly organized parameter list and a returns section. Every parameter earns its place, and the format is scannable. It is appropriately sized given the complexity of the tool.

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?

The tool is complex with many optional parameters and nested objects, and there is no output schema. The description covers all parameters, but the return value is vague ('Dict[str, Any]: Response data'), providing no indication of what keys or data structure to expect. This leaves a notable completeness gap.

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?

The input schema is a generic 'request' object with additionalProperties true, providing 0% coverage. The description compensates by thoroughly explaining every parameter, including types, defaults, and nested structures (e.g., number_pool_settings, url_shortener_settings). This adds immense meaning beyond the schema.

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 opens with 'Create a messaging profile,' which clearly identifies the action (create) and the resource (messaging profile). This distinguishes it from sibling tools like list_messaging_profiles, get_messaging_profile, and update_messaging_profile.

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 does not explicitly state when to use this tool versus alternatives. The verb 'create' implies its use for new profiles, but there is no mention of prerequisites, typical scenarios, or exclusions. Usage is inferred from the tool name and the parameter list rather than made explicit.

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