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

It discloses that the operation affects only sheets loaded for this token, indicating it does not delete stored files, and explicitly mentions the side effect of freeing space under the cap.

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, direct sentence that efficiently conveys the action and its purpose without unnecessary detail.

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 the single required parameter and no output schema, the description provides enough context for an agent to understand what the tool does and when to invoke it, including the memory cap rationale.

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 sole parameter 'name' is not explicitly described in the schema or the description; it is implied to be the loaded sheet's name, but this is not stated outright. The description compensates only partially.

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 ('Delete one sheet loaded for this token') and distinguishes it from file operations by specifying the in-memory scope and the 2 MB cap context.

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?

It implies usage when needing to free space under the memory cap, but does not explicitly mention alternatives or when not to use it. The context of the cap makes the appropriate usage fairly evident.

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