download_inline_image

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

With no annotations, the description must disclose behavioral details, but it only states the basic action. It does not mention whether existing files are overwritten, authentication requirements, or potential failure modes such as expired URLs. This leaves a significant transparency gap.

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 two sentences with no filler; the first sentence states the purpose and the second provides usage context. 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?

For a two-parameter download tool, the description covers its purpose and usage context. However, with no annotations or output schema, it could be more explicit about expected behavior and relationship to sibling tools like extract_inline_images and download_task_images.

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%—both image_url and output_path have descriptive text, including an example for image_url. The description adds no additional parameter semantics beyond the schema.

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 ('Download an inline image') and specifies the source ('from a Zoho task description URL') and destination ('to a local file'). It also adds usage context ('screenshots/images embedded in task descriptions'), but does not explicitly distinguish from sibling tools like extract_inline_images or download_task_images.

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 line 'Use this to download screenshots/images embedded in task descriptions' provides clear context for when to use the tool, but it does not mention alternatives or exclusions, so it stops short of a full comparative guideline.

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