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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).

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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.

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⚡ 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

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🏛️ 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

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🎯 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.

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🧪 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:

Repository	Files	Overall	Arch	Sec	Qual	AI	UI	Scan Speed	Top Focus Area
excalidraw/excalidraw	520+	88/100	92	84	90	94	80	<18ms	Canvas Component Decomposition
calcom/cal.com	1,400+	84/100	80	88	82	90	80	<45ms	Booking Service Layer Isolation
shadcn/ui	120+	96/100	98	95	96	95	96	<8ms	UI Component Primitive Boundaries
cgseyhan/architectos	51	100/100	100	100	100	100	N/A	<19ms	Native Self-Hosted AST Governance

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

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🤖 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.

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📄 License

MIT License © 2026 ArchitectOS Authors