# Enhancement Plan: [Enhancement Title]

**Generated:** [auto-generated date]
**Spec:** `[path to spec.yaml]`
**Ticket Type:** Enhancement
**Enhancement Type:** [improvement/refactoring/performance/technical-debt/documentation]
**Estimated Effort:** [time estimate]

---

## Executive Summary

[1-2 paragraph overview of what's being enhanced and why]

**Current State:** [Brief description of current behavior/implementation]

**Target State:** [Brief description of desired outcome]

**Key Changes:**
- [Change 1]
- [Change 2]
- [Change 3]

---

## Analysis & Justification

### Current Implementation Analysis

**What Works:**
- [Aspect that works well 1]
- [Aspect that works well 2]

**What Needs Improvement:**
- [Pain point 1]
- [Pain point 2]

**Root Cause:**
[Analysis of why current state is suboptimal]

### Improvement Strategy

**Approach:** [High-level strategy for enhancement]

**Why This Approach:**
- [Reason 1]
- [Reason 2]

**Alternatives Considered:**
1. **[Alternative 1]**
   - Pros: [Advantages]
   - Cons: [Disadvantages]
   - Why Not Chosen: [Reasoning]

---

## Technical Decisions

### Decision 1: [Decision Title]
**Choice:** [What was decided]
**Rationale:** [Why this choice improves current state]
**Impact:** [What changes as a result]

### Decision 2: [Decision Title]
**Choice:** [What was decided]
**Rationale:** [Why this choice improves current state]
**Impact:** [What changes as a result]

[Continue for all major decisions...]

---

## Impact Assessment

### Breaking Changes
[yes/no - if yes, detail below]

**Changes That Break Compatibility:**
- [Breaking change 1]
- [Breaking change 2]

**Migration Strategy:**
- [How to handle migration 1]
- [How to handle migration 2]

### Affected Components

1. **[Component 1]**
   - Impact: [How it's affected]
   - Changes Required: [What needs to change]

2. **[Component 2]**
   - Impact: [How it's affected]
   - Changes Required: [What needs to change]

### Backward Compatibility

[yes/no/partial]

**Compatibility Plan:**
- [How backward compatibility is maintained or handled]

---

## File Structure

### Files to Modify

1. **`[path/to/file1.py]`**
   - Current state: [What exists now]
   - Changes needed: [What to modify]
   - Refactoring approach: [How to improve]

2. **`[path/to/file2.py]`**
   - Current state: [What exists now]
   - Changes needed: [What to modify]
   - Refactoring approach: [How to improve]

### New Files to Create (if any)

1. **`[path/to/new-file.py]`**
   - Purpose: [Why new file is needed]
   - Key components: [What goes in it]

### Files to Delete (if any)

1. **`[path/to/obsolete.py]`**
   - Reason for deletion: [Why no longer needed]
   - Dependencies to update: [What references this]

---

## Implementation Steps

### Phase 1: Preparation & Analysis
**Estimated Time:** [hours]

1. **Review Current Implementation** ([time estimate])
   - Read and understand existing code
   - Identify all dependencies
   - Document current behavior
   - **Success Criteria:** Complete understanding of current state

2. **Set Up Safety Measures** ([time estimate])
   - Ensure tests pass before changes
   - Create feature branch
   - Document rollback strategy
   - **Success Criteria:** Safe environment for changes

### Phase 2: Implementation
**Estimated Time:** [hours]

1. **[Step 1 Title]** ([time estimate])
   - **Actions:** [Specific actions to take]
   - **Expected Outcome:** [What results from this step]
   - **Verification:** [How to confirm it worked]
   - **Potential Blockers:** [What could go wrong]

2. **[Step 2 Title]** ([time estimate])
   - **Actions:** [Specific actions to take]
   - **Expected Outcome:** [What results from this step]
   - **Verification:** [How to confirm it worked]
   - **Potential Blockers:** [What could go wrong]

[Continue for all implementation steps...]

### Phase 3: Validation & Testing
**Estimated Time:** [hours]

1. **Update Tests** ([time estimate])
   - Modify existing tests for new behavior
   - Add tests for edge cases
   - Ensure coverage maintained/improved
   - **Success Criteria:** All tests passing, coverage >= current

2. **Performance Validation** ([time estimate]) [if applicable]
   - Benchmark current performance
   - Benchmark new implementation
   - Verify improvement achieved
   - **Success Criteria:** Measurable performance improvement

3. **Integration Testing** ([time estimate])
   - Test affected components together
   - Verify no regressions
   - Validate acceptance criteria
   - **Success Criteria:** All acceptance criteria met

### Phase 4: Documentation & Cleanup
**Estimated Time:** [hours]

1. **Update Documentation** ([time estimate])
   - Update living docs (docs/features/)
   - Update code comments
   - Update API docs if needed
   - **Success Criteria:** Documentation reflects new reality

2. **Code Cleanup** ([time estimate])
   - Remove dead code
   - Clean up debug logging
   - Format code (Black)
   - Lint code (Ruff)
   - **Success Criteria:** Code quality standards met

---

## Testing Strategy

### Existing Tests to Update

1. **`[test_file_1.py]`**
   - Tests affected: [Which tests need changes]
   - Changes needed: [What to update]

2. **`[test_file_2.py]`**
   - Tests affected: [Which tests need changes]
   - Changes needed: [What to update]

### New Tests to Add

1. **Edge Case: [Description]**
   - Location: [Where to add test]
   - What to test: [Specific behavior]

2. **Performance Test: [Description]** [if applicable]
   - Location: [Where to add test]
   - Benchmark: [What to measure]

### Manual Testing Checklist

- [ ] [Manual test scenario 1]
- [ ] [Manual test scenario 2]
- [ ] [Manual test scenario 3]

---

## Risk Assessment

### Risks & Mitigation

1. **Risk: [Risk Description]**
   - Likelihood: [High/Medium/Low]
   - Impact: [High/Medium/Low]
   - Mitigation: [How to reduce risk]
   - Fallback: [What to do if it happens]

2. **Risk: [Risk Description]**
   - Likelihood: [High/Medium/Low]
   - Impact: [High/Medium/Low]
   - Mitigation: [How to reduce risk]
   - Fallback: [What to do if it happens]

### Rollback Strategy

**If Enhancement Fails:**
1. [Rollback step 1]
2. [Rollback step 2]
3. [Rollback step 3]

**Recovery Time Objective:** [Expected time to rollback]

---

## Success Metrics

### Quantitative Metrics

1. **[Metric 1]:** [Current value] → [Target value]
   - How to measure: [Measurement method]

2. **[Metric 2]:** [Current value] → [Target value]
   - How to measure: [Measurement method]

### Qualitative Metrics

- [Improvement in developer experience]
- [Improvement in code maintainability]
- [Improvement in user experience]

---

## Dependencies & Prerequisites

### Must Complete Before Starting

- [ ] [Prerequisite 1]
- [ ] [Prerequisite 2]

### External Dependencies

- [External system or service 1]
- [External system or service 2]

### Team Dependencies

- [Coordination needed with team/person 1]
- [Coordination needed with team/person 2]

---

## Definition of Done

- [ ] All acceptance criteria met
- [ ] Tests updated and passing (coverage >= current)
- [ ] Code formatted (Black) and linted (Ruff)
- [ ] Documentation updated (living docs + code comments)
- [ ] Performance benchmarks pass (if applicable)
- [ ] No breaking changes (or migration path provided)
- [ ] Peer review completed
- [ ] Integration testing passed
- [ ] Success metrics validated

---

## Timeline & Effort Estimate

| Phase | Estimated Time | Confidence |
|-------|----------------|------------|
| Preparation & Analysis | [X hours] | High/Med/Low |
| Implementation | [X hours] | High/Med/Low |
| Validation & Testing | [X hours] | High/Med/Low |
| Documentation & Cleanup | [X hours] | High/Med/Low |
| **Total** | **[X hours]** | **High/Med/Low** |

**Confidence Factors:**
- [Factor affecting estimate 1]
- [Factor affecting estimate 2]

---

## Post-Enhancement Monitoring

### What to Monitor

- [Metric 1 to watch]
- [Metric 2 to watch]

### Success Indicators

- [Indicator that enhancement is working well 1]
- [Indicator that enhancement is working well 2]

### Warning Signs

- [Sign that something might be wrong 1]
- [Sign that something might be wrong 2]

---

*Generated by CDD Framework /plan command*
