image_to_prompt

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

No annotations are provided, so the description carries the full burden. It discloses that the operation is 'synchronous' and 'returns the operation result', offering some behavioral insight. However, it does not disclose side effects, authentication requirements, rate limits, or failure behavior, which is a significant gap for a generation tool.

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 consists of two concise sentences with no redundant or filler content. It front-loads the essential purpose and adds the synchronous and return-value details without waste. Every word 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 the lack of annotations and output schema, the description is incomplete. It does not specify what the operation result contains (likely a prompt string), nor does it address error conditions or how the result is structured. With one parameter and no output schema, more explanation is needed to fully prepare an agent.

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 schema has one parameter, source_image_url, with no description (0% coverage). The description does not mention this parameter or explain what constitutes a valid input (e.g., URL format, accessibility). Since schema coverage is zero, the description must compensate, but it does not, leaving the parameter semantically empty.

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 'Run a synchronous Midjourney operation on RunAPI (image to prompt)', which clearly identifies the tool's purpose as converting an image to a prompt. The parenthetical 'image to prompt' differentiates it from sibling tools like image_to_video and text_to_image. However, the verb 'Run' is generic rather than a specific action like 'convert' or 'generate', so it falls short of a 5.

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 provides no guidance on when to use this tool versus alternatives. It does not mention use cases, prerequisites, or exclusions. There is no reference to sibling tools such as image_to_video or shorten_prompt, leaving the agent without context for tool selection.

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