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

The annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false. The description adds valuable behavior beyond the annotations: it returns an exact preview and a five-minute confirmation token, and it explicitly does not apply the change. This is consistent with the annotations and helpful for a preview operation.

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 three short sentences, front-loaded with the purpose, then confirmation requirement, then return behavior. Every sentence adds useful information with no wasted text.

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 explains the key behavioral points: it is a preview, requires confirmation, returns a time-limited token, and does not apply changes. However, it does not describe how to identify the load beyond saying 'one load,' and it does not explain what to do with the token afterward. Given no output schema and zero parameter descriptions, these are meaningful gaps.

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, and schema description coverage is 0%. The description says 'one load' but does not explain the trip_number field or clarify how a load is identified. It therefore fails to compensate for the missing schema documentation.

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 and resource: 'Prepare clearing one load's saved vehicle information.' It also distinguishes the preview from the actual clearing action by saying it 'does not apply the change,' so an agent can tell it apart from siblings like clear_load_vehicle.

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 implies usage by saying 'Requires confirmation' and explaining that it returns a confirmation token, which suggests it is a pre-step before an actual clear operation. However, it does not explicitly name alternatives such as clear_load_vehicle or state when not to use this preview tool.

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