# Antigravity Migration

> M4ST assistant migration notes by Mast Anuj: local-first setup, MCP configs, and verified workflow handoff.

- **Type:** MCP server
- **Install:** `agentstack add mcp-m4stanuj-antigravity-migration`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [m4stanuj](https://agentstack.voostack.com/s/m4stanuj)
- **Installs:** 0
- **Category:** [AI & ML](https://agentstack.voostack.com/c/ai-and-ml)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [m4stanuj](https://github.com/m4stanuj)
- **Source:** https://github.com/m4stanuj/antigravity-migration

## Install

```sh
agentstack add mcp-m4stanuj-antigravity-migration
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# M4ST → ANTIGRAVITY FULL MIGRATION GUIDE
## v6.0 | April 2026

---

## WHAT THIS DOES

M4ST ka pura backend Antigravity IDE ke andar shift hota hai.

```
BEFORE (M4ST standalone):
  Flask/SocketIO server → Custom UI → Tools

AFTER (Antigravity + M4ST layer):
  Antigravity IDE → MCP Servers → Same tools, same memory, same persona
```

M4ST ka kuch bhi lose nahi hota. Sab kuch MCP ke through Antigravity ko milta hai.

---

## PACKAGE STRUCTURE

```
antigravity_migration/
├── SOUL.md                    ← M4ST personality/identity for Antigravity
├── config/
│   ├── opencode.jsonc         ← 21-provider LLM fallback config
│   └── .env.example           ← API keys template
├── mcps/
│   ├── mcp_system.py          ← PC control + file ops + shell (60+ tools)
│   ├── mcp_memory.py          ← 3-tier memory (working/episodic/semantic)
│   ├── mcp_vision.py          ← DPI-aware screenshot + Qwen3-VL vision
│   ├── mcp_browser.py         ← CDP browser control (Playwright)
│   └── mcp_web.py             ← Search + scrape + research
└── scripts/
    └── start_antigravity.ps1  ← One-click Windows startup
```

---

## SETUP — STEP BY STEP

### Step 1 — Create Antigravity config dir

```powershell
mkdir $env:USERPROFILE\.antigravity\mcps -Force
mkdir $env:USERPROFILE\.m4st\memory -Force
mkdir $env:USERPROFILE\.m4st\screenshots -Force
mkdir $env:USERPROFILE\.m4st\models -Force
```

### Step 2 — Copy files

```powershell
# SOUL.md
Copy-Item SOUL.md "$env:USERPROFILE\.antigravity\SOUL.md"

# Config
Copy-Item config\opencode.jsonc "$env:USERPROFILE\.antigravity\opencode.jsonc"
Copy-Item config\.env.example "$env:USERPROFILE\.antigravity\.env"

# MCP servers
Copy-Item mcps\*.py "$env:USERPROFILE\.antigravity\mcps\"
```

### Step 3 — Fill in API keys

```powershell
notepad $env:USERPROFILE\.antigravity\.env
```

Fill in at minimum:
- `GROQ_API_KEY` — primary provider (free, fast)
- `DEEPSEEK_API_KEY` — code tasks
- `ANTHROPIC_API_KEY` — final fallback

### Step 4 — Install Python dependencies

```powershell
cd $env:USERPROFILE\.antigravity
python -m venv venv
.\venv\Scripts\pip install mcp httpx playwright pyautogui pyperclip pygetwindow pillow chromadb scrapling
.\venv\Scripts\playwright install chromium
```

### Step 5 — Download Qwen3-VL (optional but recommended)

For local vision (screenshots, OCR, UI element finding):

```powershell
# Download from HuggingFace
cd $env:USERPROFILE\.m4st\models

# Model: ~5GB
# Get from: https://huggingface.co/Qwen/Qwen3-VL-7B-GGUF
# File: qwen3-vl-7b-q4_k_m.gguf + qwen3-vl-7b-mmproj.gguf
```

### Step 6 — Link config to Antigravity

Antigravity looks for config in these locations (try each):

```
~/.antigravity/opencode.jsonc   ← Primary (already placed here)
~/.opencode/config.json          ← OpenCode fallback
.antigravity/ (workspace root)   ← Per-project override
```

If Antigravity has a "Custom Instructions" or "System Prompt" setting:
- Point it to: `~/.antigravity/SOUL.md`
- Or paste the SOUL.md content directly

### Step 7 — Run startup script

```powershell
.\scripts\start_antigravity.ps1
```

Or right-click the .ps1 file → "Run with PowerShell"

---

## MCP TOOL COVERAGE

| Category         | Server           | Tools | Replaces |
|-----------------|-----------------|-------|----------|
| Shell/Process    | mcp_system.py    | 15    | M4ST shell tools |
| File Operations  | mcp_system.py    | 20    | M4ST file tools |
| PC Control       | mcp_system.py    | 15    | M4ST Windows tools |
| Browser          | mcp_browser.py   | 16    | M4ST + Tandem CDP |
| Memory T1        | mcp_memory.py    | 4     | M4ST working memory |
| Memory T2        | mcp_memory.py    | 3     | M4ST episodic memory |
| Memory T3        | mcp_memory.py    | 3     | M4ST semantic/ChromaDB |
| Vision           | mcp_vision.py    | 7     | M4ST vision pipeline |
| Web Research     | mcp_web.py       | 8     | M4ST web tools |

**Total: ~91 tools** directly ported. Remaining M4ST tools (code analysis, git, notification chains, etc.) are native to Antigravity/VS Code.

---

## LLM PROVIDER FALLBACK CHAIN

```
groq/llama-3.3-70b          → [1] PRIMARY  (fastest, free)
groq/llama-3.1-8b           → [2] fast tasks
cerebras/llama-4-scout      → [3] fast alternative
cerebras/llama3.1-70b       → [4] smart + fast
openrouter/qwen3-235b:free  → [5] top quality free
openrouter/llama-4:free     → [6] meta free
openrouter/mai-ds-r1:free   → [7] reasoning free
deepseek/deepseek-chat      → [8] smart + cheap
gemini/2.0-flash            → [9] long context (1M tokens)
together/qwen3-235b         → [10] quality
groq/qwen-qwq-32b           → [11] reasoning
groq/deepseek-r1-70b        → [12] reasoning alt
mistral/codestral           → [13] code specialist
cohere/command-r7b          → [14] RAG tasks
claude-haiku-4-5            → [15] premium haiku
claude-sonnet-4-6           → [16] premium smart
gpt-4o-mini                 → [17] openai fallback
gemini-2.5-pro              → [18] premium long ctx
together/deepseek-r1        → [19] deep reasoning
ollama/qwen3:8b             → [20] LOCAL offline
llamacpp/josiefied-qwen3    → [21] LOCAL uncensored
```

---

## TASK-BASED ROUTING

| Task Type    | Model |
|-------------|-------|
| Code gen     | deepseek/deepseek-coder |
| Fast/simple  | groq/llama-3.1-8b-instant |
| Reasoning    | groq/deepseek-r1-distill-70b |
| Vision       | llamacpp/qwen3-vl-7b (local) |
| Long context | gemini/gemini-2.0-flash |
| Private      | llamacpp/josiefied-qwen3-8b |
| Default      | groq/llama-3.3-70b-versatile |

---

## MEMORY SYSTEM

```
TIER 1 — Working (in-memory dict)
  → session state, recent results, active task
  → Tools: memory_working_set/get/list/clear

TIER 2 — Episodic (SQLite at ~/.m4st/memory/episodic.db)
  → conversations, tasks, decisions, errors, insights
  → Tools: memory_episode_save/search/recent

TIER 3 — Semantic (ChromaDB at ~/.m4st/memory/semantic/)
  → long-term knowledge, vector search
  → Tools: memory_semantic_store/search/delete

Cross-tier:
  → memory_recall(query) — searches all tiers automatically
  → memory_stats() — shows counts + disk usage
```

---

## WHAT STAYS WITH M4ST

Some M4ST v6 features are already native to Antigravity and don't need porting:

- **Code editing** — Antigravity's core strength
- **Git operations** — Built-in VS Code git
- **Terminal** — Integrated terminal (use shell_run for MCP access)
- **File tree** — VS Code explorer
- **Extensions** — All VS Code extensions work

The MCP layer fills in the gaps: memory, vision, PC control, browser.

---

## TROUBLESHOOTING

**MCP server not starting:**
```powershell
# Test manually
$env:USERPROFILE\.antigravity\venv\Scripts\python.exe `
  $env:USERPROFILE\.antigravity\mcps\mcp_system.py
# Should show no output (waiting for stdio)
```

**Vision not working:**
```powershell
# Check llama-server
curl http://localhost:8080/health
# Should return {"status":"ok"}
```

**Memory errors:**
```powershell
# ChromaDB needs reset sometimes
Remove-Item "$env:USERPROFILE\.m4st\memory\semantic\" -Recurse -Force
```

**Provider auth errors:**
```powershell
# Verify keys loaded
$env:GROQ_API_KEY  # Should show your key
```

---

## BUILD FAST. SHIP. ITERATE. 👽🤙

## Source & license

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

- **Author:** [m4stanuj](https://github.com/m4stanuj)
- **Source:** [m4stanuj/antigravity-migration](https://github.com/m4stanuj/antigravity-migration)
- **License:** MIT

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

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** yes
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** yes
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/mcp-m4stanuj-antigravity-migration
- Seller: https://agentstack.voostack.com/s/m4stanuj
- Browse the marketplace: https://agentstack.voostack.com/browse

---
Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.