aseprite_openOpens an image or sprite file to set it as the active sprite for editing in Aseprite.
Opens a file (.aseprite, .png, .gif, ...) as the active sprite.
| Name | Required | Description | Default |
|---|---|---|---|
| path | Yes | Absolute path |
Changes observed during successful MCP inspections.
v0.2.0Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions 'as the active sprite' but does not disclose whether opening replaces the current sprite, whether unsaved changes are lost, or how errors such as missing files are handled. For a state-changing tool, this is a significant 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 a single, front-loaded sentence with no unnecessary words. It efficiently combines the core action, supported formats, and the resulting state of the active sprite.
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 one-parameter tool, the description plus schema is minimally sufficient. However, without output schema or annotations, it should clarify side effects on the current sprite and ideally error behavior, which are currently left implicit.
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 input schema covers the only parameter with 100% coverage, including that the path must be absolute. The description adds supported file format examples but does not expand on path semantics or constraints, so the schema already does the heavy lifting.
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 identifies the operation (opens a file), the resource (a supported image/sprite file), and the result (becomes the active sprite). This distinguishes it from siblings like aseprite_new_sprite and aseprite_save without requiring the agent to inspect schemas.
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?
Usage is implied by the name and description: use this tool when you need to open an existing file as the active sprite. However, it does not explicitly name alternatives or state when not to use it, leaving some inference to the agent.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.