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MCP verified Apache-2.0 Self-run

Gemstack

mcp-arvarik-gemstack · by arvarik

The high-velocity AI agent orchestration framework, natively optimized for Antigravity (v2.0).

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Install

$ agentstack add mcp-arvarik-gemstack

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

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Reliability & compatibility

✓ Security review passed
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Declared compatibility

Claude CodeClaude DesktopCursorWindsurf

Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

Preview Execution monitoring

We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.

How agent discovery & health will work →
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About

💎 Gemstack

The high-velocity AI agent orchestration framework, natively optimized for Antigravity.

[](https://github.com/arvarik/gemstack/actions) [](https://github.com/arvarik/gemstack/releases) [](LICENSE)

🚀 Gemstack 2.0: The Antigravity Release

Gemstack has evolved. Version 2.0 is a fundamental architectural shift that moves beyond simple prompt-stitching into Native Agentic Orchestration. It is designed specifically to harness the full power of the Antigravity (agy) CLI.

What makes 2.0 different?

  • 🧠 XML-Structured Mindsets: Every expert role (Architect, SDET, DevOps, etc.) now uses a high-precision XML-tagged mindset. This ensures perfect instruction following and eliminates "Logic Drift" when working with Gemini 1.5 Pro and 2.0.
  • 🤖 Autonomous Subagents: Roles are now Subagent-Aware. The framework no longer just tells the AI what to do; it gives the AI the tools to delegate. The Architect can now autonomously spawn a Security subagent to audit a schema before it ever reaches your codebase.
  • 📊 Native Artifact Integration: We've deprecated manual planning files in favor of native Antigravity artifacts. IMPLEMENTATION_PLAN.md, task.md, and walkthrough.md are now the living, breathing heart of your project, providing real-time visual progress tracking.
  • 📐 Modern Topology Guardrails: Topologies have been refreshed for the 2025 stack.
  • Backend: Drizzle ORM + Playwright integration.
  • Frontend: Next.js 15 Server Components & Server Actions.
  • Infrastructure: Proxmox/LXC resource limits and Caddy DNS-01 automation.
  • 🔍 Deterministic Phase Routing: The new agy routing engine replaces the old status-file check with a high-fidelity artifact monitor, ensuring you never skip a step in the lifecycle.

🏗️ The 5-Step Lifecycle

Gemstack enforces a rigorous, contract-driven engineering process:

  1. Step 1: Spec → Define the feature, design UX, and lock in executable contracts (Architect).
  2. Step 2: Trap → Write failing automated tests that "trap" the requirement before coding (SDET).
  3. Step 3: Build → Implement the logic until the "traps" pass (Principal Engineers).
  4. Step 4: Audit → Security, performance, and accessibility review (Security Engineer).
  5. Step 5: Ship → Deployment, infrastructure provisioning, and post-flight checks (DevOps Engineer).

📦 Installation

# Recommended: Install everything (AI, MCP, TUI)
pipx install "gemstack[all]"

# Or via uv (fastest)
uv tool install "gemstack[all]"

📖 Documentation

  • [Getting Started](docs/getting-started.md) — From zero to your first v2.0 workflow.
  • [The 5-Step Lifecycle](docs/the-5-step-lifecycle.md) — How the orchestration engine works.
  • [Topology Guardrails](docs/topologies.md) — Domain-specific rules for every project type.
  • [MCP Server & IDE Integration](docs/mcp-server.md) — Connecting Gemstack to Cursor and Claude.

🤝 Contributing

We welcome contributions! Please see [CONTRIBUTING.md](CONTRIBUTING.md) for our v2.0 XML prompting standards and development guidelines.

⚖️ License

Apache 2.0. See [LICENSE](LICENSE) for details.

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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