ArchitectOS

AI-Native Repository Intelligence & Governance Engine

ArchitectOS analyzes your repository, explains its architecture, calculates change impact, and enforces guardrails for AI Agents (Claude Code / Cursor / Codex).

Strict Product Mandate: ArchitectOS never modifies user code directly; it exclusively analyzes, explains, calculates impact, and generates actionable refactoring plans. Code modifications are executed by AI Agents or human developers.

⚡ Quickstart & Core Commands

# 1. Initialize and review repository
npx architectos

# 2. High-level repository health, security & UI review (with optional CI threshold)
architectos review
architectos review --threshold 80

# 3. Component deep-dive (supports --why, --ui, --dead, --duplication, --taint)
architectos analyze toolbar.tsx
architectos analyze toolbar.tsx --why
architectos analyze --ui
architectos analyze --dead
architectos analyze --duplication
architectos analyze --taint auth.controller.ts

# 4. View historical score timeline and trend
architectos history

# 5. Cross-graph downstream change impact & risk rating
architectos impact auth.ts

# 6. Structured refactoring migration plan
architectos plan toolbar.tsx

# 7. Symbol resolver & natural language architecture query
architectos resolve WorkspaceRepository
architectos resolve "Where is tenant isolation enforced?"

# 8. Native MCP server gateway & live watcher
architectos watch
architectos mcp

Related MCP server: arch-viewer

🏛️ The ArchitectOS Pipeline

architectos review               # High-level health & problem breakdown (--threshold 80)
      ↓
architectos analyze <target>     # Deep-dive (--why, --ui, --dead, --duplication, --taint)
      ↓
architectos impact <target>      # Cross-graph downstream change risk
      ↓
architectos plan <target>        # Step-by-step refactoring migration plan
      ↓
architectos resolve <symbol>     # Hallucination shield & symbol resolver
      ↓
architectos history              # Historical score timeline & trend tracking
      ↓
AI Agent / Developer executes refactor

🎯 Engine Precision & Accuracy Features

• 25 CWE-Mapped SAST Engine: High-precision rules covering SQLi, XSS, RCE, ReDoS, Prototype Pollution, NoSQLi, Open Redirect, Unsafe Deserialization, and Weak Cryptography.

• Context-Aware Noise Filter: Automatically suppresses false positives inside test blocks (describe/it), JSDoc comments, dead conditional branches, and when known sanitizers (DOMPurify, escapeHtml) are detected.

• Multi-File Taint Tracking Engine: Traces untrusted user inputs (HTTP req.body/searchParams) down to dangerous execution sinks across multi-file import graphs.

• Code Duplication Scanner: Token-fingerprinted Jaccard similarity engine detecting copy-pasted code blocks across monorepo packages.

• Framework Entrypoint Whitelist: Eliminates false positives for Next.js (GET, POST, generateMetadata, middleware), Remix, Vitest, and CLI entrypoints.

• Tarjan SCC Cycle Detection: Mathematically sound circular dependency cycle detection for complex monorepos.

• Public Scoring Transparency: Fully documented formulas and deduction rules in SCORING.md.

🧪 Real-World Benchmark Verification (v1.2.1 Engine Breakdown)

ArchitectOS is battle-tested and dogfooded across major open-source codebases with transparent sub-metric scoring:

Note: Pure CLI / backend repositories (e.g. architectos) omit UI Architecture scoring.

🤖 Native MCP Server Integration

Add ArchitectOS to your Claude Code, Cursor, or Codex MCP configuration:

{
  "mcpServers": {
    "architectos": {
      "command": "npx",
      "args": ["-y", "architectos", "mcp"]
    }
  }
}

Registered MCP Tools

• architectos_review: Repository health & problem breakdown.

• architectos_why: Root-cause coupling analysis.

• architectos_impact: Polyglot change impact calculator.

• architectos_plan: Step-by-step migration refactoring plan.

• architectos_resolve: Symbol resolver & hallucination shield.

• architectos_dead: Unused exports & zombie code detector.

• architectos_ui: Framework-agnostic UI component composition & boundary audit.

• architectos_remember: Store persistent architectural guardrail rules.

📄 License

MIT License © 2026 ArchitectOS Authors