Google Docs MCP Server

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. It mentions appending 'to the very end' and 'specific tab' which adds some context, but doesn't address critical behavioral aspects: whether this requires edit permissions, if it's idempotent, what happens on failure, or what the output contains. For a mutation tool with zero annotation coverage, this leaves significant gaps in understanding how the tool behaves.

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 immediately states the core functionality. Every word earns its place - 'Append text' specifies the action, 'to the very end' clarifies positioning, 'Google Document' identifies the resource, and 'or specific tab' adds important scope information. There's zero waste or redundancy in this compact description.

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 this is a mutation tool with no annotations but with an output schema (which handles return values), the description is minimally adequate. It covers the basic what and where, but lacks important context about permissions, error conditions, and when to use versus alternatives. The presence of an output schema means the description doesn't need to explain return values, but it should provide more behavioral context for a write operation.

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 75% (3 of 4 parameters have descriptions), so the baseline is 3. The description adds minimal value beyond the schema - it mentions 'specific tab' which relates to the 'tab_id' parameter, but doesn't explain what tabs are or when they're used. It doesn't clarify the relationship between document_id and tab_id, or provide examples of valid document IDs. The description doesn't compensate for the 25% coverage gap in a meaningful way.

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 ('Append text') and target resource ('Google Document or specific tab'), making the purpose immediately understandable. It doesn't explicitly distinguish from siblings like 'insert_text' or 'replace_all_text', but the 'append' verb implies end-of-document positioning. The description is specific enough to understand what the tool does without being tautological.

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 like 'insert_text' (which might allow positioning anywhere) or 'replace_all_text'. It mentions 'specific tab' but doesn't explain when tab targeting is needed versus regular document appending. There's no mention of prerequisites, permissions required, or common use cases for this operation.

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