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Aseprite MCP Tools

Aseprite MCP Tools

by NosytLabs
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

set_color_mode

Convert an Aseprite sprite's color mode to RGB, grayscale, or indexed for adjusting color depth or palette compatibility.

Instructions

Convert the sprite's color mode.

Args: filename: Aseprite file to modify mode: "rgb", "grayscale", or "indexed"

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "filename": "<filename>",
      "mode": "<mode>"
    },
    "name": "set_color_mode"
  }
}

Input Schema

NameRequiredDescriptionDefault
modeYes
filenameYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

B3.2/5.0
Behavior2/5

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

No annotations are present, so the description must cover behavioral traits. It only states the conversion action without disclosing side effects, permanence, authorization needs, or impact on the sprite.

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

Conciseness4/5

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

The description is very concise with no extraneous words. It efficiently conveys the purpose and parameters, though it could be slightly more structured with separate description and args sections front-loaded.

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

Completeness3/5

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

Given the simplicity of the tool (2 required params, no output schema), the description covers the basic function and parameter values. However, it lacks details on return values, file modification behavior, and any prerequisites.

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?

The description adds meaning to the 'mode' parameter by listing the allowed values ('rgb', 'grayscale', or 'indexed'), which is not in the schema. The 'filename' parameter is minimally described as 'Aseprite file to modify'. Overall, it partially compensates for the 0% schema coverage.

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 uses the specific verb 'convert' and clearly identifies the resource as 'the sprite's color mode'. It directly states the action, making it easy to understand what the tool does without ambiguity.

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

Usage Guidelines2/5

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

No information is provided about when to use this tool versus alternatives. Among many sibling tools, there is no guidance on context, prerequisites, or when not to use it.

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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