Plan Feature

Plan Feature Implementation

Create a thorough implementation plan before writing code.

Workflow

1. Gather Context

• Read docs/PRD.md
• Read docs/specs/[feature-name].md if exists
• Analyze existing codebase structure
• Understand current architecture

2. Deep Analysis

Think carefully about:

• How does this feature fit into existing architecture?
• What are the dependencies?
• What could go wrong?
• What are the unknowns?

3. Create Implementation Plan

Output: docs/tasks/[feature-name]-plan.md

# Implementation Plan: [Feature Name]

## Executive Summary
[Brief overview of the feature and approach]

## Current State Analysis
### Existing Architecture
[Relevant parts of current codebase]

### Integration Points
- [Where this connects to existing code]
- [Services that will be used/extended]

## Proposed Approach

### Option 1: [Approach Name] (Recommended)
**Description**: [How it works]

**Pros**:
- [Advantage 1]
- [Advantage 2]

**Cons**:
- [Disadvantage 1]

**Effort**: [Low/Medium/High]

### Option 2: [Alternative Approach]
**Description**: [How it works]

**Pros**:
- [Advantage 1]

**Cons**:
- [Disadvantage 1]
- [Disadvantage 2]

**Effort**: [Low/Medium/High]

### Decision
[Which option and why]

## Implementation Steps

### Phase 1: Foundation
1. [Step with brief description]
2. [Step with brief description]

### Phase 2: Core Implementation
3. [Step with brief description]
4. [Step with brief description]

### Phase 3: Integration & Testing
5. [Step with brief description]
6. [Step with brief description]

## Technical Decisions

### Data Model
```swift
// Proposed model structure

Architecture Pattern

[Which pattern and why]

State Management

[How state will be managed]

Risks and Mitigations

Dependencies

• [External dependency or blocker]
• [Team coordination needed]

Open Questions

• [Question that needs resolution]

Next Steps

1. [Immediate next action]
2. [Following action]

### 4. Review and Iterate
- Validate assumptions
- Get feedback on approach
- Refine before implementation

## Important
This skill is for **planning only**. Do NOT write implementation code.