AgentSkillsCN

find-patterns

查找可作为参考的相似实现、使用示例或现有代码模式。返回带有文件路径和行号的精炼代码片段。当你需要了解代码库中某项功能当前的具体实现方式时，这一工具大有裨益。

SKILL.md
--- frontmatter
name: find-patterns
description: Find similar implementations, usage examples, or existing code patterns that can be modeled after. Returns concrete code snippets with file:line references. Use when you need to understand how something is currently done in the codebase.

What I Do

Find code patterns and examples in the codebase that can serve as templates or inspiration. I locate similar implementations and extract concrete, reusable snippets with full context.

Search Strategy

Step 1: Identify Pattern Types

Based on the request, determine what to search for:

  • •Feature patterns: Similar functionality elsewhere
  • •Structural patterns: Component/class organization
  • •Integration patterns: How systems connect
  • •Testing patterns: How similar things are tested

Step 2: Search

  • •Use grep to find keywords, function names, patterns
  • •Use glob for file patterns
  • •Use list to explore directory structures

Step 3: Read and Extract

  • •Read files with promising patterns
  • •Extract the relevant code sections
  • •Note the context and usage
  • •Identify variations across the codebase

Output Format

code
## Pattern Examples: [Pattern Type]

### Pattern 1: [Descriptive Name]
**Found in**: `src/api/users.js:45-67`
**Used for**: [What this pattern accomplishes]

[code snippet]

**Key aspects**:
- [Aspect 1]
- [Aspect 2]

### Pattern 2: [Alternative Approach]
**Found in**: `src/api/products.js:89-120`
**Used for**: [What this pattern accomplishes]

[code snippet]

### Testing Patterns
**Found in**: `tests/api/pagination.test.js:15-45`

[test code example]

### Pattern Usage in Codebase
- **[Variation A]**: Found in [locations]
- **[Variation B]**: Found in [locations]

### Related Utilities
- `src/utils/helper.js:12` - Shared helpers used by this pattern

Pattern Categories to Search

API Patterns

Route structure, middleware, error handling, authentication, validation, pagination

Data Patterns

Database queries, caching, data transformation, migrations

Component Patterns

File organization, state management, event handling, lifecycle, hooks

Testing Patterns

Unit test structure, integration test setup, mock strategies, assertions

Rules

  • •Show working code — not just snippets
  • •Include context — where patterns are used in the codebase
  • •Show multiple variations that exist
  • •Include test patterns alongside implementation patterns
  • •Full file paths with line numbers
  • •Don't recommend one pattern over another — just show what exists
  • •Don't critique or evaluate pattern quality
  • •Don't skip test examples