get_image_details

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

No annotations are provided, so the description must cover behavioral traits. It states the input and output clearly but does not disclose potential errors (e.g., file not found) or any side effects. For a read-only operation, this is adequate but not exhaustive.

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?

Extremely concise: four lines total. Front-loaded with the main purpose, followed by args and returns in a clean docstring format. No unnecessary words.

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 a single parameter and a clear output (format, size, dimensions), the description is complete. An output schema exists but is not shown; the description sufficiently covers what to expect. Sibling tools are numerous but this is a simple getter.

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 0% coverage (no parameter descriptions). The description adds meaning: 'image_path: Path to the image file'. While brief, it clarifies the parameter's purpose beyond the schema, compensating for the lack of schema description.

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 tool's purpose: 'Get information about an image file.' It specifies the input (image_path) and output (format, size, dimensions), distinguishing it from siblings like add_image, get_image_as_base64, or list_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?

No guidance on when to use this tool versus alternatives. No mention of when-not to use or how it compares to other image-related tools (e.g., get_image_as_base64 for actual image data).

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