Google Workspace MCP VE

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

No annotations are provided, so the description carries full burden. It mentions what content is retrieved but doesn't disclose behavioral aspects like authentication requirements (implied by user_google_email parameter), rate limits, error conditions, or whether this is a read-only operation. The description is functional but lacks operational context.

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?

Single sentence that efficiently conveys the core functionality with zero waste. Front-loaded with the main action and includes specific content components in parentheses for clarity.

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 that there's an output schema (which handles return values), 100% schema coverage for parameters, and no annotations, the description provides adequate context for a read operation. It could be more complete by mentioning authentication needs or rate limits, but the core functionality is clearly described.

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 the schema already documents all three parameters thoroughly. The description doesn't add any parameter-specific information beyond what's in the schema. Baseline 3 is appropriate 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?

The description clearly states the verb ('retrieves') and resource ('full content of a specific Gmail message') with specific components listed (subject, sender, recipients, body). It distinguishes from siblings like 'get_gmail_messages_content_batch' (batch retrieval) and 'get_gmail_thread_content' (thread-level), but doesn't explicitly mention these alternatives in the description itself.

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 versus alternatives like batch retrieval tools or thread-level tools. The description implies it's for single messages but doesn't provide context about prerequisites, performance considerations, or when other tools might be more appropriate.

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