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

Annotations already declare destructiveHint=true and idempotentHint=true, so the description's main added value is stating what is gained and that rows/fields are preserved. However, it never addresses reversibility or whether the type change can be undone, which is precisely the risk the destructive hint signals for an in-place conversion.

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?

A single tight sentence, front-loaded with the action and followed by the concrete effects and the preservation guarantee. No wasted wording; every clause carries 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?

An output schema exists, so return values need no explanation, and the tool is simple (one param). Still, for a destructive, in-place type conversion the description omits reversibility and any effect on existing views/automations attached to the sheet, leaving a meaningful gap.

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?

There is one required parameter (sheetId) with zero schema description coverage, and the description never mentions the identifier or its expected form (numeric sheet id vs. other item ids). With coverage at 0%, the description was the only place to disambiguate the parameter and it does not.

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 states a specific verb ('Turn ... into') and resource ('a worksheet into a tasksheet'), and enumerates the concrete effect (gains Status, Assignee, Due Date, Priority; rows become tasks). This is clearly distinguishable from siblings like sheet.add_attribute or sheet.update, though no sibling is named explicitly.

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?

Usage is implied by the transformation itself, and 'in place' plus 'Rows and fields stay' gives the agent a decision-relevant fact when choosing between full conversion and adding a single attribute. There is no explicit when-to-use/when-not guidance or suggested alternative (e.g., sheet.add_attribute for one field).

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