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

Annotations already indicate destructive behavior (destructiveHint=true) and non-read-only (readOnlyHint=false). The description adds 'abandon' and 'reconcile' which reinforces the destructive nature and hints at state cleanup, but does not disclose additional side effects or reversibility beyond the annotations.

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 concise sentence with no redundant words or elaboration. It is direct and to the point, fitting the tool's simple purpose.

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 tool is relatively simple and the description covers the core purpose. However, given the large set of sibling tools and the lack of parameter explanations, some context is missing—such as when to use this versus creatives_delete or creatives_confirm_upload. No output schema is shown, but the context signals indicate one exists, so return value details are not required.

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 input schema lists 4 parameters (file_hash, idempotency_key, upload_attempt) with no descriptions. The description does not mention any of these parameters or their roles, leaving them completely unexplained. Schema coverage is 0% and the description does not compensate.

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: 'Reconcile and explicitly abandon one failed creative upload generation'. The verb 'abandon' is specific and the resource 'creative upload generation' is distinct, differentiating it from sibling tools like creatives_confirm_upload or creatives_request_upload.

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 for failed uploads ('failed creative upload generation') but does not explicitly state when to use this tool versus alternatives (e.g., delete, confirm upload). There is no explicit when-not instruction, leaving some ambiguity.

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