Google Workspace MCP VE

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

With no annotations provided, the description carries full burden for behavioral disclosure. While 'Set' implies a mutation operation, the description doesn't mention permission requirements, whether changes are reversible, rate limits, or what happens to existing background settings. This is inadequate for a tool that modifies presentation content.

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 that directly states the tool's function without unnecessary words. It's appropriately sized for a straightforward operation and front-loads the essential information.

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 this is a mutation tool with no annotations, 5 parameters (2 undocumented), and an output schema exists (which reduces need to describe return values), the description is minimally adequate. However, it should provide more behavioral context about the mutation operation and guidance on parameter usage to be truly complete.

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 60%, with three parameters documented (page_object_id, color, alpha) and two undocumented (user_google_email, presentation_id). The description doesn't add any parameter information beyond what's in the schema, so it doesn't compensate for the coverage gap. Baseline 3 is appropriate given the partial schema documentation.

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 action ('Set') and resource ('background color of a slide'), making the purpose immediately understandable. However, it doesn't differentiate from sibling tools like 'style_slides_shape' or 'format_all_slides_text', which might have overlapping functionality for slide appearance modifications.

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. With many sibling tools for slide formatting and presentation manipulation, there's no indication of specific use cases, prerequisites, or comparisons to tools like 'format_all_slides_text' or 'style_slides_shape'.

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