Pilot MCP

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

No annotations are provided, so the description carries the full disclosure burden. While 'send' implies a write operation, the description fails to mention whether this requires user interaction to complete, what happens if no mail account is configured, or whether the operation returns a success status.

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, efficient sentence with no redundant words. However, given the suspicious absence of parameters for an email-sending operation, the description may be overly concise by failing to explain how the email content is provided (e.g., via UI or missing schema fields).

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 performing a high-complexity external operation (sending email) with no output schema and zero documented parameters, the description is inadequate. It fails to explain the parameter discrepancy, distinguish the email client used, or describe success/failure handling.

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 input schema contains zero parameters. Per evaluation rules, tools with 0 parameters receive a baseline score of 4 for this dimension, as there are no parameter semantics to clarify beyond what the empty schema already conveys.

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 states the basic action (compose and send) and resource (email), but fails to distinguish from sibling tool 'outlook_send_email' or clarify which email client is targeted. Given the macOS-centric sibling tools (finder_list, safari bookmarks), this likely targets Apple Mail, but the description leaves this ambiguous.

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 provided on when to use this versus 'outlook_send_email' or 'reply_email'. The absence of parameters in the schema suggests this may open a UI compose window rather than sending programmatically, but the description does not clarify this critical behavioral distinction.

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