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

With no annotations, the description carries the full behavioral burden. It usefully discloses that approval_id and status are returned and that the email token is not returned, but it omits whether the call triggers an email, whether repeated calls create duplicate requests, and what happens on denial or timeout.

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?

Three short sentences with zero waste, and the core action is front-loaded before return behavior and the email-token caveat.

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 tool with no annotations, a nested details object, and no output schema, the definition is too thin. It does not explain the details parameter, the approval lifecycle, or how it relates to wait_for_approval, leaving the agent with material gaps.

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 description coverage is 33% and only identity_id is documented in the schema. The description does not explain the action parameter's meaning or the shape/content expected in the nested details object, so it fails to compensate for the low coverage.

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?

States a specific verb and resource: asking the account owner to approve an action. It is clear what the tool does, but it does not explicitly distinguish itself from the sibling wait_for_approval.

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?

Provides no guidance on when to use this tool versus wait_for_approval, or any prerequisites such as an owner needing to be configured. Usage is only implied by the phrase 'Ask the account owner to approve.'

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