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upload_image

Upload a public URL image to generate a hash for Meta ad creatives.

Instructions

Upload an ad image from a public URL. Returns image hash for use in ad creatives.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
urlYesPublic URL of the image to upload
Behavior3/5

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

No annotations provided, so description must fully cover behavior. It discloses upload from URL and return of hash, but omits side effects, error conditions, size limits, or authentication needs. Adequate but not comprehensive.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

A single, front-loaded sentence of 14 words with no fluff. Every word is necessary and informative.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple tool with one parameter and no output schema, the description is nearly complete. It explains input and output. Missing minor details like file size limits or format restrictions, but overall adequate.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% with parameter description 'Public URL of the image to upload'. The description reinforces this but adds no new meaning (e.g., supported formats, validation rules). Baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb 'Upload' and resource 'ad image' from a 'public URL', and specifies output as 'image hash for use in ad creatives'. It distinguishes from sibling tools like get_image, delete_image, and list_images.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies when to use (when you have a public URL for an ad image) and provides context for ad creatives. However, it lacks explicit exclusion of alternatives or when-not-to-use guidance.

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

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