vk_post_user_3bc5afd3077b

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

With no annotations, the description must disclose side effects and requirements. It does mention authentication and the enabling action, but it incorrectly states the body is optional when the schema requires it, misleading agents about call requirements. This is a significant transparency issue.

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 purpose is repeated almost verbatim in the first and third sentences ('Enable a previously enrolled totp setting' twice), there is a typo ('..'), and the generic proxy instructions add noise. It is not a well-structured or concise description.

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 simple one-parameter tool, the description should clearly state that the body is required and explain the expected input format. It fails by contradicting the schema and omits any response or error behavior. The authentication note is useful but insufficient overall.

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 schema has one required parameter 'body' (described as 'The totp passcode'). The description contradicts this by calling the body 'optional' and adds irrelevant boilerplate about top-level parameters and name aliases. This actively misleads the agent about required inputs.

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: enabling a previously enrolled TOTP setting using a passcode, and specifies the exact REST endpoint (POST /user/settings/totp/enable). This is a specific verb+resource that distinguishes it from sibling tools.

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?

It provides useful context: the TOTP must be previously enrolled, implying this is a follow-up step. It also notes that authentication is required. While it doesn't explicitly mention alternatives, the usage context is clear enough.

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