lg-init

name: lg-init description: Helps students bootstrap a new Liquid Galaxy Flutter project. Enforces LG naming convention, recommends logo/assets via Nano Banana, configures rig connection, and creates the app in a separate directory with its own Git repo.

Liquid Galaxy Project Initializer

First step in the pipeline: Init -> Brainstorm -> Plan -> Execute -> Review -> Quiz (Finale).

⚠️ PROMINENT GUARDRAIL: The Critical Advisor (.agent/skills/lg-critical-advisor/SKILL.md) and LG Shield (.agent/skills/lg-shield/SKILL.md) are always active. If the student rushes or can't explain the LG architecture, STOP and invoke the Critical Advisor.

Contest: 3-Repository Workflow

This starter kit supports the Gemini Summer of Code 2026 — Agentic Programming Contest structure:

The student's generated app is deliverable #2. It must be in its own repo, buildable, and demonstrate LG control.

CRITICAL: Separate Directory Rule

The new app MUST be created as a sibling directory inside the Antigravity workspace, NOT inside LGFlutterStarterKit.

The starter kit is a template/reference — it stays untouched. The new app gets its own directory and its own Git repo, but BOTH live inside the same workspace so the student can see them side-by-side in their IDE.

~/.gemini/antigravity/scratch/            ← ANTIGRAVITY WORKSPACE ROOT
├── LGFlutterStarterKit/                  ← THIS STAYS UNTOUCHED (template)
│   ├── .agent/                            ← Agent skills, rules, workflows
│   ├── flutter_client/                    ← Reference implementation
│   └── ...
└── LG-Task2-Demo/                        ← NEW APP GOES HERE (separate repo)
    ├── flutter_client/
    ├── docs/
    ├── .github/
    ├── README.md
    └── ...

After creating the app directory, add it to the IDE workspace so the student sees both repos in the file explorer.

CRITICAL: LG App Naming Convention

All generated apps MUST follow this naming pattern:

LG-<TaskName>

Examples:

• LG-Task2-Demo — For the basic Task 2 deliverable
• LG-Earthquake-Viz — For an earthquake visualizer
• LG-Satellite-Tracker — For a satellite tracking app
• LG-Historic-Tours — For a historical exploration app

Rules:

1. Always prefix with LG- — identifies it as a Liquid Galaxy app
2. Use PascalCase after the prefix (no underscores, no spaces)
3. Be descriptive — the name should tell you what the app does
4. NOT acceptable: my_app, flutter_test, earthquake_app, lg_demo
5. The Flutter package name in pubspec.yaml should be snake_case: lg_task2_demo

Phase 0: Repository Setup

⛔ WITHIN-PHASE INTERACTION RULES

DO NOT silently create the project directory and all files. Explain WHAT you're about to create and WHY before doing it. Pause after each significant step for student acknowledgment.

Step 1: Explain and Confirm Project Location

First, explain to the student what will happen:

"I'm going to create your LG app as a sibling directory next to the starter kit — inside the same Antigravity workspace. Both repos will be visible in your IDE side-by-side. Here's the layout:"

# The Antigravity workspace root
WORKSPACE_ROOT=$(dirname "$STARTER_KIT")   # ~/.gemini/antigravity/scratch/

# The starter kit location
STARTER_KIT=$(pwd)   # e.g., ~/.gemini/antigravity/scratch/LGFlutterStarterKit

# New app goes as a SIBLING inside the same workspace
APP_NAME="LG-Task2-Demo"   # Must follow LG-<TaskName> convention
APP_DIR="$WORKSPACE_ROOT/$APP_NAME"

Tell the student the exact path:

"Your new project will live at: ~/.gemini/antigravity/scratch/LG-Task2-Demo/" "The starter kit stays untouched at: ~/.gemini/antigravity/scratch/LGFlutterStarterKit/" "Both will be visible in your IDE workspace."

Ask: "This means your app code and the mentor's skills live side-by-side. Does this workspace layout make sense? Any questions about why we keep them separate but within reach?"

⛔ STOP and WAIT for the student's response.

Step 2: Create the New App Directory

mkdir -p "$APP_DIR"
cd "$APP_DIR"

Tell the student:

"📂 Created directory: ~/.gemini/antigravity/scratch/LG-Task2-Demo/" "To navigate here yourself: cd ~/.gemini/antigravity/scratch/LG-Task2-Demo"

Step 3: Copy Starter Kit Scaffolding

Explain what's being copied:

"I'm copying the Flutter client template, docs structure, GitHub workflows, and server as a starting point. I'll walk you through the structure after."

# Copy the Flutter client as a starting point
cp -r "$STARTER_KIT/flutter_client" "$APP_DIR/flutter_client"

# Copy docs structure
mkdir -p docs/plans docs/reviews docs/aimentor docs/screenshots docs/recordings docs/gifs

# Copy workflow files for CI/CD
cp -r "$STARTER_KIT/.github" "$APP_DIR/.github"

# Copy .gitignore
cp "$STARTER_KIT/.gitignore" "$APP_DIR/.gitignore"

# Copy node_server if needed
cp -r "$STARTER_KIT/server" "$APP_DIR/server" 2>/dev/null || true

# Create fresh README and DEVELOPMENT_LOG
touch README.md DEVELOPMENT_LOG.md

After copying, show the student exactly what was created with full paths:

📁 Files created:
  ✅ ~/.gemini/antigravity/scratch/LG-Task2-Demo/flutter_client/  (Flutter app template)
  ✅ ~/.gemini/antigravity/scratch/LG-Task2-Demo/server/          (Node.js backend)
  ✅ ~/.gemini/antigravity/scratch/LG-Task2-Demo/docs/plans/      (Design & plan docs)
  ✅ ~/.gemini/antigravity/scratch/LG-Task2-Demo/docs/screenshots/ (Demo evidence)
  ✅ ~/.gemini/antigravity/scratch/LG-Task2-Demo/.github/          (CI/CD workflows)
  ✅ ~/.gemini/antigravity/scratch/LG-Task2-Demo/README.md
  ✅ ~/.gemini/antigravity/scratch/LG-Task2-Demo/DEVELOPMENT_LOG.md

"Here's what we just created. flutter_client/ is your main app code, docs/ is where plans and reviews go, server/ is the Node.js backend. Each folder has a specific purpose."

Ask: "Can you guess which folder your SSH service code will go in? Which folder will your screen widgets live in?"

⛔ STOP and WAIT for the student's answer. This confirms they understand the project structure.

Step 4: Initialize Git

cd "$APP_DIR"
git init
git add .
git commit -m "init: project scaffolding from LGFlutterStarterKit"

Tell the student:

"💻 Terminal command: cd ~/.gemini/antigravity/scratch/LG-Task2-Demo && git init && git add . && git commit -m 'init: project scaffolding from LGFlutterStarterKit'" "Git repo initialized with your first commit. To check status: cd ~/.gemini/antigravity/scratch/LG-Task2-Demo && git log --oneline"

Step 5: Add to IDE Workspace

CRITICAL: Make both repos visible in the IDE.

"I'm adding your new app to the current workspace so you can see both repos in the file explorer:" "📂 Workspace now contains:" " 1. LGFlutterStarterKit/ — The template + agent skills" " 2. LG-Task2-Demo/ — Your app (this is where we'll work)"

If using VS Code, add the folder to the workspace. If using another IDE, tell the student how to open both directories.

Step 6: Create GitHub Repo

Hand off to .agent/skills/lg-github-agent/SKILL.md to:

1. Create a new GitHub repo with the app name
2. Set origin remote
3. Push initial commit
4. Set up branch protection and templates

Tell the student the GitHub URL:

"GitHub repo created: https://github.com/<username>/LG-Task2-Demo" "To push manually: cd ~/.gemini/antigravity/scratch/LG-Task2-Demo && git push -u origin main"

Phase 1: Requirement Gathering

Ask the student these questions ONE AT A TIME. Wait for each answer before asking the next.

1. Project Name: "What should we name this app? It must follow the LG-<TaskName> convention. For Task 2, I'd recommend LG-Task2-Demo. For a custom project, describe what it visualizes."

2. LG Rig Config: "How many screens does your target LG rig have? (3 is the default for Task 2)"

3. App Type: "What kind of LG app are you building?"

   • Task 2 Demo: Minimum features (logo, pyramid, flyTo, clean) — contest requirement
   • Data Visualization: Live data on Google Earth (earthquakes, weather, satellites)
   • Educational: Guided tours, historical explorations, information balloons
   • Controller: Rig management dashboard

4. Platforms: Android (primary — required for release APK), plus optionally iOS, Linux, macOS.

5. External APIs: USGS, NASA, OpenWeather, custom, or none (Task 2 = none).

6. Tooling confirm: flutter analyze, flutter test, dart format.

Phase 1.5: Logo & Asset Guidance

After requirements, recommend visual assets:

"Every LG app needs a logo for the ScreenOverlay on the slave screen and an app icon. I recommend using the Nano Banana Asset Master to generate these. Here's what we need:"

For Task 2: The logo is sent to the left slave screen (screen 3 in a 3-screen rig) as a <ScreenOverlay> KML element. It should include the project name and optionally the LG logo.

Generation: Use .agent/skills/lg-nanobanana-sprite/SKILL.md — it provides prompts with green-screen background removal for clean transparent PNGs.

Reference: See how Lucia handles the logo overlay in LG Master Web App.

Phase 2: Scaffolding

First, explain the layered architecture:

"Your Flutter app uses a layered architecture — each folder has a specific responsibility. Let me walk you through it:"

flutter_client/lib/
├── main.dart         # Provider setup, entry point
├── config.dart       # LG rig connection config
├── constants/        # App-wide constants
├── models/           # Data models
├── screens/          # UI screens (phone controller UI)
├── services/         # Business logic (SSH, KML, API)
├── widgets/          # Reusable components
└── modules/          # Feature modules

Ask: "Looking at this structure — which folder do you think handles SSH communication to the rig? Which folder should NEVER import SSH or KML code directly?"

⛔ STOP and WAIT for the student's answer. This tests layer boundary understanding early.

Actions:

1. Create missing directories + test/, assets/.
2. flutter pub get
3. flutter doctor
4. If platforms missing: flutter create --platforms=android,ios,linux,macos .

After running the commands, report the results and ask:

"Flutter is set up. flutter doctor shows [summary]. Any issues you notice that we should fix before moving on?"

⛔ STOP and WAIT.

Phase 3: Configuration

Explain before configuring:

"Now I'll set up the LG rig connection defaults in config.dart and add the packages we need in pubspec.yaml. These packages are:"

• dartssh2 — SSH to communicate with the LG rig master (pure Dart)
• xml — KML generation and parsing
• google_maps_flutter — In-app map for location picking and flyTo targets
• provider — State management (UI reads state from providers)
• shared_preferences — Persistent connection settings (rig IP, port, user)
• flutter_secure_storage — Encrypted password storage
• path_provider — File system access for KML temp files
• http — API calls for external data
• web_socket_channel — WebSocket for Node.js server

📋 REFERENCE: See demo/DEPENDENCIES.md in the starter kit for the full verified plugin stack with exact versions, platform compatibility matrix, and a ready-to-use pubspec.yaml template.

Ask: "Can you guess which of these packages our SSH service will use? And which one will the KML service use? (Hint: think about layer boundaries)"

⛔ STOP and WAIT. This validates the student understands which service uses which dependency.

Update config.dart with LG connection defaults. Update pubspec.yaml using the versions from demo/DEPENDENCIES.md.

Phase 4: Golden Rules (CONVERSATIONAL — NOT A LECTURE)

⛔ DO NOT dump all 3 rules in one message. Present each rule as a conversation:

Rule 1 — App is Controller:

"The most important concept: your Flutter app is a REMOTE CONTROL. It runs on your phone. Google Earth runs on the rig. Your app sends COMMANDS, the rig DISPLAYS."

Ask: "If the app is just a remote control, what does the app NOT need to do? What heavy lifting does Google Earth handle?"

⛔ STOP and WAIT.

Rule 2 — Google Earth is Display:

"When you send a KML file to the rig, Google Earth automatically renders it across ALL screens. You don't need to manage multi-screen layout — Google Earth does that for you."

Ask: "So if we want something to appear on the left screen vs. the center screen — how do we control that? (Hint: it's about which slave file you write to)"

⛔ STOP and WAIT.

Rule 3 — Service Layer:

"All SSH, KML, and API logic lives in the services/ folder — NEVER in widgets or screens. This is called separation of concerns."

Ask: "Why is this important? What would go wrong if we put SSH code directly in a button's onPressed handler?"

⛔ STOP and WAIT.

Reference Architecture: LG Master Web App by Lucia — the reference implementation for all LG controller apps.

LG Official Resources:

• Liquid Galaxy LAB — All GSoC LG projects
• LG Mobile Applications — Official app showcase
• GSoC 2026 Ideas — Current project ideas

Execution

1. Gather requirements.
2. Recommend logo/assets via Nano Banana.
3. Create/modify files — show full paths for every file created.
4. flutter pub get && flutter analyze.

   "🖥️ Terminal: cd ~/.gemini/antigravity/scratch/LG-Task2-Demo/flutter_client && flutter pub get && flutter analyze"

5. Commit: init: LG Flutter project scaffolding.

   "🖥️ Terminal: cd ~/.gemini/antigravity/scratch/LG-Task2-Demo && git add . && git commit -m 'init: LG Flutter project scaffolding'"

6. Summary block — show everything created:

   📁 Project created at: ~/.gemini/antigravity/scratch/LG-Task2-Demo/
   📂 Flutter app: ~/.gemini/antigravity/scratch/LG-Task2-Demo/flutter_client/
   📂 Docs: ~/.gemini/antigravity/scratch/LG-Task2-Demo/docs/
   📂 Server: ~/.gemini/antigravity/scratch/LG-Task2-Demo/server/
   🌐 GitHub: https://github.com/<user>/LG-Task2-Demo
   🖥️ To run: cd ~/.gemini/antigravity/scratch/LG-Task2-Demo/flutter_client && flutter run
   

7. Ask the student: "The project is scaffolded. Before we brainstorm features, can you explain: What is the relationship between the Flutter app on your phone and Google Earth on the LG rig?"
8. If the student cannot answer, link to lg-learning-resources (.agent/skills/lg-learning-resources/SKILL.md) — Architecture topic.
9. Hand to Brainstormer (.agent/skills/lg-brainstormer/SKILL.md).

🔗 Skill Chain

After scaffolding is complete and the student passes the checkpoint, automatically offer the next stage:

"Project scaffolded and committed! You clearly understand the Controller-to-Rig model. Now let's brainstorm features — what should your LG app visualize on Google Earth? Ready to brainstorm? 🧠"

If student says "ready" → activate .agent/skills/lg-brainstormer/SKILL.md.