verify_agent_contact_email

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

The description discloses that it 'does not expose the challenge secret', which is a useful behavioral note. However, with no annotations, it fails to mention other important traits such as idempotency, side effects, rate limits, or authentication requirements.

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 extremely concise—two short sentences that front-load the action and add one key behavioral fact. Every word earns its place with no redundancy.

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?

Given zero parameters and no output schema, the description is minimally adequate. However, it lacks information about return values, success/failure indicators, or what happens after the challenge is sent, which an agent would need for reliable invocation.

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 tool has no parameters, and the schema coverage is 100%. The description doesn't need to add parameter details, and its concise note about the challenge secret adds value beyond the empty 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 the action ('Start or resend') and the resource ('operator email reply challenge for the active agent contact email'). It is specific and informative, but does not differentiate from sibling tools like 'get_agent_contact_status' or 'set_agent_contact'.

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 usage for initiating or re-sending an email challenge for agent contact verification, but provides no explicit guidance on when to use this tool versus alternatives, nor any preconditions or scenarios where it should not be used.

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