create_sprite

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

With no annotations, the description carries the behavioral disclosure burden. It states the file is new and blank and gives a path-extension rule, but it does not reveal what happens on existing paths, whether the file is saved to disk immediately, what dimensions imply, or any error behavior.

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 short sentences with no filler. The primary purpose is front-loaded and the path-extension tip is the only supporting detail, so every sentence 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 simple creation tool, the core purpose and path rule are present, and an output schema exists to describe return values. However, critical practical details are missing: the effect of width/height, behavior when the path already exists, and whether the new file is blank/transparent versus otherwise initialized.

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. It adds meaningful guidance only for path (must end in .ase or .png), while width and height are left to their bare names with no units, minimums, defaults, or interpretation.

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 uses a specific verb and resource ('Create a new blank sprite file') and is clearly distinct from siblings like resize_canvas, set_pixel, or export_png. It also adds a concrete constraint on path extensions, so an agent can identify the tool's purpose unambiguously.

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 establishes general context: use this when creating a new blank sprite before editing or exporting. However, it does not explicitly state when not to use it, mention alternatives, or explain how to proceed if the target file already exists.

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