build_uploads__create

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

The description indicates a creation action, matching the annotations (readOnlyHint=false). No additional behavioral traits are disclosed, such as side effects or state changes. With annotations present, this is minimally adequate but lacks extra 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 a single sentence with the URL, no wasted words. However, it could be front-loaded with more critical information. Still, it is concise and to the point.

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 complexity of the nested JSON schema and lack of output schema, the description is minimal. It does not explain the purpose of build uploads or next steps (e.g., file upload). Some contextual gaps remain.

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?

Schema coverage is 100%, but the description adds no semantic value beyond what the schema provides. The nested body parameter is labeled as 'JSON:API request body (Apple schema: BuildUploadCreateRequest)', which is essentially a reference. Baseline score of 3 is appropriate.

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 'Create a build upload' with a specific verb and resource. However, it does not differentiate from sibling tools like build_uploads__delete or build_uploads__get, missing an opportunity for better distinction.

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. There is no mention of preconditions (e.g., having an app ID) or follow-up steps, leaving the agent without context for proper invocation.

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