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 the full burden of behavioral disclosure. It mentions that Out of Office events 'auto-decline meeting invitations and set the user's status', which implies mutation effects, but fails to detail permissions required, whether changes are reversible, rate limits, or error handling. For a tool with 14 parameters and no annotation coverage, this lack of behavioral context is a significant gap.

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 concise and front-loaded, consisting of two sentences that directly state the tool's purpose and key effects. Every sentence earns its place by clarifying the tool's scope and impact. However, it could be slightly more structured by explicitly mentioning the multi-action nature (create/list/update/delete) hinted at in the schema.

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 the tool's complexity (14 parameters, multi-action support) and the presence of an output schema, the description is minimally adequate. It covers the basic purpose but lacks guidance on usage, behavioral details, and integration with sibling tools. The output schema reduces the need to explain return values, but the description should do more to contextualize the tool within the broader server ecosystem.

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 14 parameters thoroughly. The description adds no additional parameter semantics beyond what the schema provides, such as explaining interactions between parameters or usage examples. With high schema coverage, the baseline score of 3 is appropriate, as the description doesn't compensate but also doesn't need to given the schema's completeness.

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 tool's purpose: 'Manages Out of Office events on Google Calendar' with specific effects ('auto-decline meeting invitations and set the user's status to "Out of office" across Google Workspace'). It uses a specific verb ('manages') and identifies the resource ('Out of Office events on Google Calendar'). However, it doesn't explicitly differentiate from sibling tools like 'manage_event' or 'manage_focus_time', which could handle similar calendar 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?

The description provides no guidance on when to use this tool versus alternatives. It mentions the tool's functionality but doesn't specify prerequisites, exclusions, or compare it to sibling tools such as 'manage_event' or 'get_events'. Without this context, users might struggle to choose the appropriate tool for calendar-related tasks.

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