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绘制事物 MCP

使用模型上下文协议 (MCP) 为 Cursor 集成 Draw Things API。

先决条件

Related MCP server: Jira Context MCP Server

安装

# Install globally
npm install -g draw-things-mcp-cursor

# Or run directly
npx draw-things-mcp-cursor

光标集成

要在 Cursor 中设置此工具,请参阅cursor-setup.md中的详细指南。

快速设置:

  1. 创建或编辑~/.cursor/claude_desktop_config.json :

{
  "mcpServers": {
    "draw-things": {
      "command": "draw-things-mcp-cursor",
      "args": []
    }
  }
}
  1. 重启光标

  2. 在 Cursor 中使用: generateImage({"prompt": "a cute cat"})

CLI 使用

生成图像

echo '{"prompt": "your prompt here"}' | npx draw-things-mcp-cursor

参数

  • prompt :图像生成的文本提示(必需)

  • negative_prompt :图像生成的负面提示

  • width :图像宽度(默认值:360)

  • height :图像高度(默认值:360)

  • steps :生成的步骤数(默认值:8)

  • model :用于生成的模型(默认值:“flux_1_schnell_q5p.ckpt”)

  • sampler :采样方法(默认值:“DPM++ 2M AYS”)

例子:

echo '{
  "prompt": "a happy smiling dog, professional photography",
  "negative_prompt": "ugly, deformed, blurry",
  "width": 360,
  "height": 360,
  "steps": 4
}' | npx draw-things-mcp-cursor

MCP 工具集成

当在 Cursor 中用作 MCP 工具时,该工具将注册为generateImage ,并具有以下参数:

{
  prompt: string;       // Required - The prompt to generate the image from
  negative_prompt?: string;  // Optional - The negative prompt
  width?: number;       // Optional - Image width (default: 360)
  height?: number;      // Optional - Image height (default: 360)
  model?: string;       // Optional - Model name
  steps?: number;       // Optional - Number of steps (default: 8)
}

生成的图像将保存在images目录中,文件名格式为: <sanitized_prompt>_<timestamp>.png

响应格式

成功:

{
  "type": "success",
  "content": [{
    "type": "image",
    "data": "base64 encoded image data",
    "mimeType": "image/png"
  }],
  "metadata": {
    "parameters": { ... }
  }
}

错误:

{
  "type": "error",
  "error": "error message",
  "code": 500
}

故障排除

如果您遇到问题:

  • 确保 Draw Things API 在http://127.0.0.1:7888运行

  • 如果使用 Cursor,请检查~/.cursor/logs中的日志文件

  • 确保src/index.js具有执行权限: chmod +x src/index.js

执照

麻省理工学院

Available Tools

1 tool
generateImageC

Generate an image based on a prompt

ParametersJSON Schema
NameRequiredDescriptionDefault
promptNo
negative_promptNo
widthNo
heightNo
stepsNo
seedNo
guidance_scaleNo
random_stringNo

TDQS

C2.4/5.0
Behavior2/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only states the action ('Generate an image') without mentioning any behavioral traits like rate limits, authentication needs, output format, or potential side effects (e.g., resource usage). For a tool with 8 parameters and no annotation coverage, this is inadequate, as it leaves critical operational details unspecified.

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?

The description is extremely concise with a single sentence, 'Generate an image based on a prompt', which is front-loaded and wastes no words. It efficiently communicates the core function without unnecessary elaboration, making it easy to parse quickly. This is optimal for brevity, though it may sacrifice detail.

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

Completeness2/5

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

Given the complexity (8 parameters, no annotations, no output schema), the description is incomplete. It doesn't explain the return values, error conditions, or how parameters interact, leaving significant gaps for the agent to operate effectively. While conciseness is high, it lacks the necessary context to handle the tool's full scope, making it insufficient for robust use.

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

Parameters1/5

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

The description adds no meaning beyond the input schema, which has 8 parameters and 0% schema description coverage. Parameters like 'negative_prompt', 'steps', and 'guidance_scale' are undocumented in both the schema and description, leaving their purposes unclear. This fails to compensate for the low coverage, resulting in poor parameter understanding for the agent.

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

Purpose3/5

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

The description 'Generate an image based on a prompt' clearly states the verb ('Generate') and resource ('image'), making the purpose understandable. However, it's somewhat vague about the specific method or technology (e.g., AI model type), and with no siblings, it doesn't need differentiation but lacks depth. This meets the minimum viable standard without being tautological or misleading.

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?

The description provides no guidance on when to use this tool, such as scenarios for image generation, alternatives, or prerequisites. It merely states the basic function without context, leaving the agent to infer usage. This is a clear gap, as it doesn't help distinguish from potential implicit alternatives or set expectations.

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

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

  1. 1 tool update
    • First observedgenerateImage

TDQS

C2.7/5.0

Scored across 1 tool

Disambiguation5/5

With only one tool, there is no possibility of confusion or overlap between tools. The single tool 'generateImage' has a distinct and clear purpose, so disambiguation is perfect.

Naming Consistency5/5

Since there is only one tool, naming consistency is inherently perfect. The tool name 'generateImage' follows a clear verb_noun pattern, and there are no other tools to compare it against for inconsistency.

Tool Count2/5

A single tool for an image generation server feels thin and limited in scope. While it covers the core function, it lacks supporting operations like editing, listing, or managing images, making it borderline too few for a typical domain.

Completeness2/5

The server's purpose appears to be image generation, but with only a generate tool, there are significant gaps. There is no way to retrieve, update, delete, or manage generated images, which will likely cause agent failures in workflows requiring more than one-off generation.

Maintenance

ActivityInactive
ResponsivenessNo issues

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