upscale_image

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

With no annotations, the description carries the full burden of behavioral disclosure. It only states the high-level effect (higher resolution) and does not mention async execution, generation ID returns, cost implications, model selection, or non-destructive behavior. No behavioral context beyond the schema is provided.

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 one short, front-loaded sentence with no filler. It communicates the core purpose immediately and earns its place.

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 no annotations, no output schema, and a nested parameters object, the description is too sparse. It does not explain that this is an AI model-based transformation, that it returns a generation/job ID, or that model_id should be sourced from list_models. The schema covers parameters well, but the overall usage context remains incomplete.

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 description coverage is 100%, with descriptions already provided for model_id, image_url, and parameters. The description adds no extra parameter meaning beyond the implication of scaling from 'higher resolution,' which the parameters field already hints at with the 'scale' example.

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 'Upscale gambar ke resolusi lebih tinggi' states a specific action and resource: upscaling an existing image to a higher resolution. It clearly differentiates from sibling tools like upscale_video (video vs image) and generate_image (generation vs enhancement). The verb and resource are unambiguous.

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 use on existing images but does not explicitly contrast with alternatives such as generate_image or upscale_video. However, the image_url parameter description adds a useful prerequisite: the image must have a public http(s) URL and should be uploaded via upload_file if it is not already public.

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