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Design

pencil-mcp-replace-all-matching-properties

Global property batch replace. Use for global style adjustment, e.g., 'Replace all red backgrounds with brand blue'.

by full-stack-skillsRepository →Source →

Tools

This skill is designed to call the Pencil MCP tool:

  • replace_all_matching_properties

If your client namespaces MCP tools, it may appear as mcp__pencil__replace_all_matching_properties.

When to use this skill

Intent Recognition (CRITICAL)

Even if a trigger phrase matches, you must verify the user's intent:

  1. Is the user explicitly asking to use "Pencil"?
  2. Is the current conversation context clearly about "Pencil" design tasks?

If the answer is NO, do NOT use this skill. (e.g., "Replace properties" might refer to refactoring code).

CRITICAL PREREQUISITE: You must ONLY use this skill when the user EXPLICITLY mentions "Pencil".

ALWAYS use this skill when:

  • You need to make Global Changes or Batch Updates in Pencil.
  • The user asks to "Change all X to Y".
  • You are refactoring styles (e.g., "Replace hex codes with variables").

Trigger phrases include:

  • "Replace Pencil properties" (替换 Pencil 属性)
  • "Change all colors in Pencil" (修改 Pencil 所有颜色)
  • "Batch update Pencil fonts" (批量更新 Pencil 字体)
  • "Pencil global style replace" (Pencil 全局样式替换)

Input Parameters

  • filePath (string, optional).
  • parents (array, required): IDs of parent nodes to search within.
  • properties (array, required): List of replacement rules.
    • Each rule defines the property, match (value to find), and replace (new value).

How to use this skill

  1. Define Rules: "Find fills: #FF0000, Replace with fills: #0000FF".
  2. Call Tool: replace_all_matching_properties(...).
  3. Verify: Call get_screenshot to verify the global change.

Examples

1. Simple: Global Color Swap

Replace all instances of Red (#FF0000) with Blue (#0000FF) across the entire document.

{
  "properties": [
    {
      "property": "fills",
      "from": { "color": "#FF0000" },
      "to": { "color": "#0000FF" }
    }
  ]
}

2. Medium: Local Font Update

Change the font family from "Arial" to "Roboto" only within the Footer section.

{
  "parents": ["frame:footer"],
  "properties": [
    {
      "property": "fontFamily",
      "from": "Arial",
      "to": "Roboto"
    }
  ]
}

3. Complex: Batch Style Migration

Update multiple properties (color and font) simultaneously across several frames to migrate to a new brand style.

{
  "parents": ["frame:home", "frame:profile"],
  "properties": [
    {
      "property": "fills",
      "from": { "color": "#OLD_COLOR" },
      "to": { "color": "#NEW_COLOR" }
    },
    {
      "property": "fontSize",
      "from": 12,
      "to": 14
    }
  ]
}

Keywords

English keywords: replace properties, batch update, global change, style refactor, bulk edit, theme switch

Chinese keywords (中文关键词): 替换属性, 批量更新, 全局修改, 样式重构, 批量编辑, 主题切换

能力边界

✅ 适用场景

  • 当你需要使用此技能对应的技术栈时
  • 当项目需要遵循最佳实践时
  • 当需要快速上手或深入理解核心概念时

⚠️ 需要注意

  • 复杂业务逻辑需要结合具体场景调整
  • 性能优化需要根据实际数据量评估

❌ 不适用场景

  • 不相关的技术栈或框架
  • 需要完全自定义的特殊场景

常见陷阱 (Gotchas)

  1. 版本兼容性:注意框架版本与依赖库的兼容性,不同版本 API 可能有差异
  2. 配置文件格式:配置文件格式错误是最常见的问题,建议使用编辑器的语法检查
  3. 环境变量:确保所有必要的环境变量已正确设置,敏感信息不要硬编码
  4. 依赖冲突:多版本共存时注意依赖冲突,使用 lock 文件锁定版本
  5. 性能陷阱:大数据量场景下注意性能优化,避免 N+1 查询等常见问题

使用流程

Step 1: 环境准备

确保开发环境已安装必要的依赖和工具。

Step 2: 配置初始化

根据项目需求进行基础配置。

Step 3: 核心功能使用

按照示例代码实现核心功能。

Step 4: 测试验证

运行测试确保功能正常。

Step 5: 部署上线

完成开发后进行部署和监控。