verify_agent_contact_email

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

The description explicitly states a key behavioral trait: 'Does not expose the challenge secret'. With no annotations, this disclosure adds important safety info. However, it doesn't describe response, idempotency, or side effects beyond initiating a challenge.

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 sentence that efficiently states the action and a crucial caveat. No wasted words.

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 fairly complete. It covers the action and a behavioral note. However, it omits context like the need for an existing agent contact or what the challenge entails.

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?

There are no parameters, so the description need not cover them. Baseline 4 applies for 0 parameters. The description doesn't need to add anything beyond the schema, which is empty.

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 verb 'Start or resend' and the resource 'operator email reply challenge for the active agent contact email'. It distinguishes itself from siblings like 'set_agent_contact' and 'get_agent_contact_status' by focusing on the challenge process.

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 when to use (start or resend a challenge) but lacks explicit guidance on prerequisites, alternatives, or when not to use. It doesn't mention that the agent contact must first be set, or that this is a follow-up to verification.

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