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

Annotations already state readOnlyHint=false and destructiveHint=false, so the description is not contradicting them, but it adds nothing: it does not say whether the new doc is empty, where it lives, whether sharing/permissions default to private, or what identifier comes back.

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?

One short sentence with no waste, but it is under-specified rather than genuinely concise; there is room to add a clause about the returned document or the empty-state result without bloat.

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 creation tool with no output schema, an agent needs to know what comes back (e.g. a document ID usable with docs_write) and where the doc is stored. Neither is covered, leaving a meaningful gap before the tool can be composed into a workflow.

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 coverage is 100%, and both parameters (title, account) are fully documented in the schema, so the baseline of 3 applies. The description adds no extra meaning about title constraints, account fallback behavior, or defaults.

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?

States a specific verb and resource: create a Google Doc. An agent can distinguish it from docs_get, docs_delete and docs_batch_update by name alone, though it does not explicitly differentiate it from docs_write (which presumably adds content to an existing doc).

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 versus docs_write or docs_batch_update, and no mention of where the doc is created, what account/Drive context applies, or what the typical follow-up step is. The agent must infer the whole workflow.

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