create_custom_field_options

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

Annotations already indicate non-idempotent and non-read-only behavior. The description adds that calling twice may create duplicates, which aligns with idempotentHint=false. However, no additional behavioral details are given (e.g., side effects, authorization requirements, or 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 short but includes redundant text ('Create custom field options' appears twice) and a header with emoji and endpoint info that could be streamlined. It is not ideally front-loaded for quick scanning.

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 creation tool with one nested parameter and no output schema, the description is minimally adequate. It covers the basic create action and non-idempotency, but lacks information about response format, error handling, or required relationships with other resources.

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 provides complete descriptions for all parameters (100% coverage), so the description adds no new meaning. It does not elaborate on the body object or provide usage examples beyond what the schema already offers.

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 verb 'create' and resource 'custom field options', and includes context like 'Field Values' and 'POST /fieldOption/bulk'. However, it does not differentiate from similar sibling tools like 'create_a_custom_field_value' or 'create_custom_deal_field_meta', leaving ambiguity about when to use this specific tool.

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 vs alternatives. The description lacks any context about prerequisites, such as needing a custom field ID or when creating options is appropriate versus other field creation tools.

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