transfer_credits

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

No annotations are present, and the description says 'Manually transfer' but does not disclose behavioral traits like mutability, required permissions, potential side effects, or failure modes.

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 a single, concise sentence that is front-loaded with the key action and resource, but it could benefit from slightly more elaboration on usage.

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?

With no output schema or annotations, and only two required parameters, the description lacks completeness about expected behavior, such as whether the operation is idempotent or what happens on insufficient balance.

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 coverage is 100%, and descriptions for both parameters ('Subaccount ID', 'Amount of credits to transfer') are clear. The description adds no extra 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 clearly states a specific verb 'transfer' and resource 'credits to a subaccount', distinguishing it from all sibling tools which deal with contacts, groups, numbers, etc.

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, nor any conditions or prerequisites for transferring credits.

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