Simplification

Simplification Skill (Occam's Razor)

Purpose

"Simplicity is the ultimate sophistication." This skill provides a rigorous protocol for identifying and eliminating over-engineering, code bloat, and technical debt across the entire stack.

Overview

The Simplification Skill is a cross-functional protocol used to flatten logic, reduce state, and ensure every line of code justifies its existence. It leverages specialized agents and MCP tools to validate architectural simplicity and performance.

Prerequisites

• Agents: Backend, Frontend, Quality.
• MCP Tools:
  • context7: To research lightweight alternatives and library standards.
  • sequential-thinking: To audit complex logic flows for potential flattening.
  • sqlite: To verify if database schemas or queries can be compressed.
  • playwright/chrome-devtools: To identify UI "jank" or DOM complexity.

Agent-Specific Simplification Protocols

Senior Backend Engineer

• State Reduction: Derive values instead of storing them. If is_active can be derived from status === 'active', delete the redundant field.
• Query Optimization: Use sqlite to check for N+1 issues. Replace nested loops with single optimized queries or batching.
• Error Flattening: Centralize error handling middleware. Remove repetitive try/catch blocks from business logic to expose the "Happy Path".

Senior Frontend Engineer

• DOM Streamlining: Replace "Div Soup" with semantic HTML elements.
• Hook Optimization: Audit useEffect usage. If it's used to sync state, replace it with derived constants or useMemo.
• Styling Discipline: Replace custom inline styles with standard Tailwind utility classes or cva variants.

QA Automation Engineer

• Test Pruning: Remove redundant unit tests if the logic is covered by a high-confidence integration test.
• Selector Simplification: Replace fragile XPaths or class-based selectors with accessible getByRole or getByLabel locators.

The Procedural Workflow

1. The Deletion Test

• Action: Use grep_search to find references to the target code. If references < 1, DELETE.
• Rule: Dead code is the best code.

2. The Library Leverage (via context7)

• Action: Use context7 to check if a complex custom utility (e.g., date formatting, deep cloning) can be replaced by a native function or a lightweight standard library (Lodash/Zustand).

3. Flat Logic Audit (via sequential-thinking)

• Action: Step through the logic. If nesting > 3 levels or cyclomatic complexity is high, apply guard clauses.

• Target Pattern:

  - if (user) {
  -   if (user.active) {
  -     return doThing();
  -   }
  - }
  + if (!user?.active) return;
  + return doThing();
  

Complexity Metrics to Watch

• Nesting Level: Maximum 3 levels of indentation.
• Function Size: Maximum 30 lines.
• Cognitive Weight: If a function requires sequential-thinking just to "read" it, it's too complex.

Output Format

## Simplification Review: [Target File/Function]

### 1. Opportunities Identified
| Area | Description | Tool Used | Impact |
|------|-------------|-----------|--------|
| Logic | Flatten nested `if` statements | `sequential-thinking` | High |
| State | Remove redundant `isLoading` boolean | - | Medium |
| Lib | Replace custom deep clone with `structuredClone` | `context7` | Low |

### 2. Implementation: Before vs After
**Before**:
```javascript
// Complex, nested, or redundant code

After:

// Streamlined, readable, and efficient code

3. Impact Assessment

• Lines Removed: [Count]
• Performance Gain: [e.g., Reduced O(N²) to O(N)]
• Maintenance Status: Optimized

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