Table of Contents

• Philosophy
• Quick Start
• The Three Perspectives
• Workflow
• Output Format
• Configuration
• Guardrails
• Integration Points

FPF Architecture Review

Conduct architecture reviews using the FPF (Functional Programming Framework) methodology, evaluating codebases through three complementary perspectives.

Philosophy

Architecture reviews should be systematic and multi-dimensional. FPF provides three lenses:

• Functional: What the system does (capabilities, behaviors)
• Practical: How well it works (performance, usability)
• Foundation: What it's built on (principles, patterns)

This lighter skill-based approach replaces heavyweight tooling with focused analysis.

Quick Start

# Full FPF review
/fpf-review

# Specific perspective
/fpf-review --perspective functional
/fpf-review --perspective practical
/fpf-review --perspective foundation

# Focused scope
/fpf-review --scope plugins/sanctum

The Three Perspectives

1. Functional Perspective

Question: What does this system do?

Evaluates:

• Feature completeness
• Capability coverage
• Behavior correctness
• Integration points

Outputs:

• Feature inventory
• Capability gaps
• Behavior anomalies

2. Practical Perspective

Question: How well does this system work?

Evaluates:

• Performance characteristics
• Usability patterns
• Operational concerns
• Scalability considerations

Outputs:

• Performance assessment
• Usability issues
• Operational recommendations

3. Foundation Perspective

Question: What is this system built on?

Evaluates:

• Architectural patterns
• Design principles
• Code quality
• Technical debt

Outputs:

• Pattern analysis
• Principle adherence
• Debt inventory

Workflow

Phase 1: Discovery (fpf-review:discovery-complete)

1. Scan codebase structure - Identify components, modules, layers
2. Map dependencies - Internal and external relationships
3. Identify entry points - Public APIs, commands, interfaces

Phase 2: Functional Analysis (fpf-review:functional-complete)

1. Inventory features - What capabilities exist
2. Trace behaviors - How features work end-to-end
3. Identify gaps - Missing or incomplete functionality

Phase 3: Practical Analysis (fpf-review:practical-complete)

1. Assess performance - Latency, throughput, resource usage
2. Evaluate usability - Developer experience, API design
3. Check operations - Logging, monitoring, error handling

Phase 4: Foundation Analysis (fpf-review:foundation-complete)

1. Pattern recognition - What patterns are used
2. Principle check - SOLID, DRY, KISS adherence
3. Debt assessment - Technical debt inventory

Phase 5: Synthesis (fpf-review:synthesis-complete)

1. Cross-reference findings - Connect issues across perspectives
2. Prioritize recommendations - Based on impact and effort
3. Generate report - Structured findings and actions

Output Format

FPF Review Report

# FPF Architecture Review: [Project/Component]

**Date:** [DATE]
**Scope:** [what was reviewed]
**Reviewer:** Claude Code with FPF skill

## Executive Summary

[2-3 sentence overview of findings]

## Functional Perspective

### Features Inventory

| Feature | Status | Notes |
|---------|--------|-------|
| [Feature 1] | Complete | - |
| [Feature 2] | Partial | Missing edge case handling |

### Capability Gaps

1. [Gap 1] - [Impact]
2. [Gap 2] - [Impact]

## Practical Perspective

### Performance Assessment

| Metric | Current | Target | Status |
|--------|---------|--------|--------|
| [Metric 1] | [value] | [target] | PASS/FAIL |

### Usability Issues

1. [Issue 1] - [Severity]
2. [Issue 2] - [Severity]

## Foundation Perspective

### Pattern Analysis

| Pattern | Usage | Assessment |
|---------|-------|------------|
| [Pattern 1] | [where used] | Appropriate/Problematic |

### Technical Debt

| Item | Severity | Effort | Priority |
|------|----------|--------|----------|
| [Debt 1] | High | Medium | P1 |

## Recommendations

### High Priority

1. **[Recommendation 1]**
   - Impact: [what improves]
   - Effort: [estimate]
   - Rationale: [why]

### Medium Priority

2. **[Recommendation 2]**
   ...

## Action Items

- [ ] [Action 1] - Owner: TBD
- [ ] [Action 2] - Owner: TBD

Configuration

# .fpf-review.yaml
scope:
  include:
    - src/
    - plugins/
  exclude:
    - tests/
    - docs/
    - node_modules/

perspectives:
  functional:
    enabled: true
    depth: "full"  # full, summary
  practical:
    enabled: true
    depth: "full"
  foundation:
    enabled: true
    depth: "full"

output:
  format: "markdown"
  create_issues: false  # Create GitHub issues for findings
  severity_threshold: "medium"  # Report medium+ severity

Guardrails

1. Scope boundaries - Stay within configured scope
2. Evidence-based - Every finding needs supporting evidence
3. Actionable output - Recommendations must be actionable
4. Balanced perspectives - Don't over-index on one perspective

Required TodoWrite Items

1. fpf-review:discovery-complete
2. fpf-review:functional-complete
3. fpf-review:practical-complete
4. fpf-review:foundation-complete
5. fpf-review:synthesis-complete

Integration Points

• pensive:code-reviewer: Detailed code-level review
• imbue:review-core: Review methodology patterns
• imbue:feature-review: Feature-specific analysis

References

• FPF Framework - Original methodology
• quint-code - Heavy implementation (this skill is lighter)

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Status: Skeleton implementation. Requires:

• Detailed analysis algorithms
• Pattern recognition logic
• Report generation templates