Answer MFA Challenge

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

The readOnlyHint annotation already signals a non-read-only operation, but the description adds no further behavioral detail. It does not mention possible side effects, idempotency, or the consequences of submitting an incorrect response, leaving a significant transparency gap.

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, focused sentence with no fluff or redundancy. It effectively communicates the essential purpose with illustrative examples, earning full credit for conciseness.

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?

While the schema covers parameter details thoroughly, the description lacks context about the tool's role in the MFA challenge flow, such as how it relates to poll_job or what to do after submission. For a write action with no output schema, this absence of workflow context is a notable 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 has 100% coverage, with each parameter described appropriately (jobId, type with enum, value). The tool description adds no additional semantic value beyond the schema, so the baseline score of 3 is appropriate.

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 tool's action ('Submit an MFA response') and provides helpful examples such as security question answer, verification code, and captcha. This distinguishes it from sibling tools focused on account/connection management, making its purpose unmistakable.

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 implies the tool is used when an MFA challenge must be answered, but it does not explicitly state when to use it versus alternatives like poll_job, nor does it mention the broader workflow (e.g., after receiving a challenge from poll_job). This falls under implied usage without clear exclusions or alternatives.

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