---

name: coder description: Generate, modify, and refactor code with best practices

Coder Skill

Generate production-ready code with proper error handling and documentation.

When to Use

• Generating new code from requirements
• Modifying existing code
• Refactoring for better quality
• Creating patches/diffs

Input Format

CopyTask: [create | modify | refactor | fix]
Language: [python | typescript | go | etc.]
Description: [What to build or change]
Context: [Optional - existing code, constraints]

Examples

Create new code:

CopyTask: create
Language: python
Description: FastAPI endpoint for user authentication with JWT tokens
Context: Using Pydantic for validation, PostgreSQL for storage

Fix a bug:

CopyTask: fix
Language: typescript
Description: Fix race condition in the payment processing queue
Context:
```typescript
[existing code here]

Copy
**Refactor:**

Task: refactor Language: python Description: Split this 500-line function into smaller, testable units

Copy
## Output Format

```markdown
## Analysis
**Task Type**: create | modify | fix | refactor
**Files Involved**: list of files
**Approach**: Brief explanation of the approach

## Code Changes

### [filename.ext]
```language
[full code or diff]

[another-file.ext]

Copy[code]

Tests

Copy[Test code if applicable]

Documentation

[JSDoc/docstring for the code]

Usage Example

Copy[How to use this code]

Copy
## Quality Checklist

Generated code should have:
- [ ] Error handling
- [ ] Input validation
- [ ] Type annotations
- [ ] Docstrings/comments
- [ ] Unit tests (when requested)
- [ ] No hardcoded secrets

## Related Skills

- **code-review** - Review the generated code
- **architect** - Ensure code fits architecture
- **pm-validator** - Validate against requirements