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

The description claims the tool creates structures, implying a write operation, but annotations declare readOnlyHint: true. This direct contradiction severely misleads the agent about the tool's side effects. The description fails to disclose this inconsistency.

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, actionable sentence that front-loads the main action. However, it lists many details in a run-on manner, slightly reducing readability. It is efficient but could benefit from bullet points or clearer structure.

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?

The description lacks critical context: no output schema, no error handling, no mention of permissions or consequences. The contradiction with annotations is unaddressed, and the tool's behavior under failure is unknown. For a tool with moderate complexity, this is severely incomplete.

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?

The description does not clarify the schema parameters. It mentions 'columns' but provides no additional meaning beyond the schema's definitions. With 67% schema description coverage, the tool description should compensate but does not. The meaning of 'useCase' and 'rowsEstimate' remains implicit.

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 creates a Google Sheets structure with specific elements like tabs, columns, formulas, and validation rules for an operations workflow. The verb 'Create' and resource 'Google Sheets structure' are precise, and the context of 'operations workflow' differentiates it from siblings.

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 is provided on when to use this tool versus alternatives. It does not mention exclusions, prerequisites, or contexts where the tool is inappropriate. The description solely defines the tool's purpose without usage conditions.

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