gmail_create_send_as

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

No annotations provided. The description does not disclose behavioral traits such as whether it triggers a verification email, if it can overwrite existing aliases, or what happens if the email already exists. For a tool with 11 parameters including SMTP settings, the description is significantly under-informative.

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?

Extremely concise at 5 words. It is front-loaded but lacks substance. While it earns its place, it could be slightly expanded to include essential context without losing conciseness.

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 11 parameters and no output schema, the description is too minimal. It does not explain what the tool actually does (e.g., create a custom 'from' address in Gmail), the need for verification, or how to handle SMTP settings. The high complexity demands more contextual information.

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 100%, so baseline is 3. The description 'Create a new send-as alias' adds no extra meaning beyond the schema's parameter descriptions. The schema itself is clear, but the tool description does not explain how parameters relate or any dependencies.

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 'Create a new send-as alias' clearly states the verb (create) and the resource (send-as alias). It differentiates from sibling tools like gmail_get_send_as, gmail_update_send_as, gmail_delete_send_as, which handle other CRUD operations.

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?

No guidance on when to use this tool vs alternatives. Does not mention prerequisites (e.g., domain verification) or when not to use it. Lacks any context about the need to verify the alias afterwards using gmail_verify_send_as.

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