best-practices

# Best Practices - View Your Pattern Library

Display your aggregated best practices library, showing successful patterns and anti-patterns across all projects.

## Usage

```
/best-practices                     # Show full library
/best-practices <category>          # Filter by category
/best-practices --warnings          # Show only anti-patterns
/best-practices --successes         # Show only successes
/best-practices --stats             # Show statistics only
```

## Options

- `<category>` - Filter by specific category (pagination, database, authentication, etc.)
- `--warnings` - Show only anti-patterns (failed patterns)
- `--successes` - Show only successful patterns
- `--stats` - Show statistics summary without individual patterns

## Workflow

### 1. Query mem0 for Best Practices

Use `mcp__mem0__search_memories` with:

```json
{
  "query": "patterns outcomes",
  "filters": {
    "OR": [
      { "metadata.outcome": "success" },
      { "metadata.outcome": "failed" }
    ]
  },
  "limit": 100
}
```

### 2. Aggregate Results

Group patterns by category, then by outcome:

```json
{
  "pagination": {
    "successes": [...],
    "failures": [...]
  },
  "authentication": {
    "successes": [...],
    "failures": [...]
  }
}
```

### 3. Calculate Statistics

For each pattern:
- Count occurrences across projects
- Calculate success rate: successes / (successes + failures)
- Note which projects contributed

### 4. Display Output

**Full Library View:**
```
📚 Your Best Practices Library
═══════════════════════════════════════════════════════════════

PAGINATION
─────────────────────────────────────────────────────────────
  ✅ Cursor-based pagination (3 projects, always worked)
     "Scales well for large datasets"

  ❌ Offset pagination (failed in 2 projects)
     "Caused timeouts on tables with 1M+ rows"
     💡 Lesson: Use cursor-based for large datasets

AUTHENTICATION
─────────────────────────────────────────────────────────────
  ✅ JWT + httpOnly refresh tokens