Open Source AI Engineering
Governance
72 MCP tools across four tiers. 43 workflow commands. 11 lifecycle hooks. 12 core tools free. Install and govern your AI code.
Everything You Need. Free and Open Source.
Free to use, source code included. Licensed under BSL 1.1 — converts to Apache 2.0 in 2029. 12 core tools free, 72 total across four tiers, 43 commands, three databases, 11 hooks. Install and go.
CodeGraph DB
Static-analyzed AST graph gives your AI true code awareness. Functions, imports, dependencies — all mapped.
Data DB
Structured project metadata enables safe automated changes. Import edges, tRPC maps, sentinel registry.
Memory DB
Persistent cognition makes your AI stateful and accountable. Sessions, observations, analytics, audit trails.
Everything You Need to Govern AI Code
A comprehensive toolkit spanning memory, intelligence, security, governance, and observability — so every AI-generated line meets your engineering standards.
Three Steps to Governed AI Development
Go from zero to fully governed AI coding in minutes. Massu AI integrates directly into your existing workflow.
Install & Init
One command installs everything: config, MCP server, hooks, and framework detection.
npm install @massu/corenpx massu init
# Output:# Detected: TypeScript, Next.js, Prisma, tRPC# Created massu.config.yaml# Registered MCP server in .mcp.json# Installed 11 hooks# Massu AI is ready.Configure
Customize your auto-generated config with domains and governance rules.
project: name: my-project root: autoframework: type: typescript router: trpc orm: prisma ui: nextjstoolPrefix: massudomains: - name: core routers: ["src/server/api/routers/core.ts"]Govern
Run governed AI workflows with full verification and audit trails.
/massu-loop
✓ Plan loaded: 12 items✓ Implementation: 12/12 complete✓ Type check: 0 errors✓ Tests: 217 passed✓ Pattern scan: 8/8 checks passed✓ Audit trail: loggedBuilt From Real Engineering, Not Theory
Every number below was earned shipping a real enterprise product. Every rule was written after a real incident. This isn't a thought experiment.
Production-tested, not theoretical
Built by shipping a real enterprise product
Every canonical rule exists because something went wrong
Built in public — not a weekend prototype
Ancient Protection. Modern Code.
Named after the Lamassu — the ancient Mesopotamian sentinel that guarded palace gates for millennia. With the wisdom of a human, the strength of a bull, and the swiftness of an eagle, these hybrid guardians warded off threats and embodied authority.
Massu carries that same purpose — standing guard over your codebase with intelligence, strength, and speed.
Wisdom
Human head
Intelligent governance that understands your codebase
Strength
Body of a bull
Enterprise-grade enforcement that never bends
Swiftness
Eagle wings
Real-time scanning at every commit, PR, and deploy
Scale with Massu AI Cloud
Love the local tools? Add cloud sync, team features, and enterprise compliance.
Dashboard & Analytics
Visual quality scores, cost tracking, session history — all in one place.
Cost Intelligence
Track AI spending with daily trends, model breakdown, budget alerts, and forecasting.
Team Sync
Shared memory across developers. Your whole team learns from every session.
Compliance Reports
Auto-generate SOC2 evidence packages from your audit trail.
Centralized Rules
Define coding rules once, push to every developer's instance.
REST API & Integrations
GitHub Actions PR risk scoring, webhooks, quality badges, and full REST API access.
Compliance Automation
Continuous compliance monitoring, scheduled reports, and downloadable PDF evidence packages for SOC2 and ISO 27001.
Rule Marketplace
Install curated rule packs for SOC2, React, API security, and more. Enterprise orgs can create private packs.
Team Intelligence
Weekly digests, code review insights, onboarding guides, and a shared prompt library.
How I Built an AI Engineering Governance Platform
The full journey from chaotic vibe coding to a disciplined system that actually ships enterprise software. 10 articles. Every lesson learned.
Ready to Govern Your AI Code?
Install the open-source core free, or add cloud features for your team.