images_to_pdf

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

With no annotations, the description carries the full behavioral burden and only discloses page order and one-image-per-page layout. It does not explain overwrite behavior, supported image formats, or what happens when the output path already exists.

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 front-loaded sentence with no wasted words. The key operation and ordering behavior are stated immediately.

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?

For a file-creating tool with no annotations, no output schema, and 0% parameter description coverage, the definition is too sparse. It omits overwrite semantics, supported formats, error behavior, and return expectations.

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 0%, so the description must compensate, but it never names or explains input_paths, output_path, or overwrite. It only weakly implies that input image order matters and that the output is a single PDF.

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 a specific verb and resource: combine images into a single PDF. It also adds ordering and page layout, which helps distinguish it from generic conversion or PDF merging, though it does not explicitly name the relevant siblings.

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 the tool is used for image-to-PDF creation, but it gives no explicit when-to-use guidance, prerequisites, or comparison to alternatives such as convert_to_pdf or merge_pdfs.

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