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

No annotations provided, so the description carries full burden, and it does real work: it discloses that this is step one of a two-step flow, that no browser/auth is needed, that a code is emailed, and that the API key only materializes after verify_account. It omits code expiry, rate limits, and what happens on repeated invocations.

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 tight sentences, front-loaded with purpose, then the verification flow, then the edge case of an existing account. No filler and every clause is load-bearing.

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?

Without an output schema, the description correctly explains where the API key comes from (verify_account) rather than leaving the return value mysterious, and it covers the unauthenticated and existing-account cases. Remaining gaps around code lifetime and re-invocation behavior are minor for a bootstrap tool.

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 coverage is 80%, so the schema already documents email, agent, preset, scopes, and workspaceName. The description adds only the email input and the verify_account { email, code } shape, contributing little beyond the structured fields. Baseline 3 applies when the schema does the heavy lifting.

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+resource ("Start a ShipMyForm account") plus the delivery mechanism (6-digit emailed code) and explicitly distinguishes its role from the sibling verify_account. An agent can tell this apart from create_api_key or verify_account without opening any schema.

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?

Gives clear context: works without authentication, works for existing accounts (code approves API access), and names verify_account as the mandated next step. It stops short of explicitly contrasting with create_api_key (the other key-provisioning sibling), but the two-step flow is unambiguous.

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