delete_preview_files

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

No annotations are provided, so the description must carry the burden of disclosing behavior. It states 'delete' implying destructive action, but does not detail irreversible effects, impact on performance, or whether it applies to the entire project or selected sequences. The 'expanded operation' phrase contributes no behavioral context.

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 only one sentence, but it is under-specified. It includes the filler 'expanded operation' and lacks operational details. While brevity is valued, this is so short that it fails to convey essential usage context, making it incomplete rather than concise.

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 simplicity of the tool (0 params, no output schema), a short description could suffice, but it fails to explain what preview files are, what the deletion affects, or any consequences. The description is incomplete for an agent to safely invoke this destructive operation without additional context.

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 tool has zero parameters, so there is nothing to explain. The baseline for 0 parameters is 4, and the description correctly does not attempt to describe parameters. It adds no extra meaning, but none is required.

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 preview files'. It is specific to a resource (preview files) and distinguishes from other delete tools like delete_bin or delete_sequence. However, the phrase 'expanded operation' is vague and adds no clarity, and the scope (which project or sequence) is unspecified.

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, prerequisites, or conditions. The description does not mention when deleting preview files is appropriate or if there are any side effects to consider.

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