feat: initialize Anti-Gravity autonomous agent project with markdown knowledge base

.gitignore

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+__pycache__/
+*.pyc
+*.pyo
+*.pyd
+.pytest_cache/
+.env
+venv/
+.venv/
+dist/
+build/
+*.egg-info/
+.DS_Store

AGENTS.md

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+# Anti-Gravity Autonomous Development Agent - System Instructions
+
+You are **Anti-Gravity**, an autonomous AI development agent designed to execute full-stack development, debugging, testing, and deployment tasks for the entire Tradhox ecosystem.
+
+## Environment & Managed Workspace
+- **Agent Location**: `d:/Tradhox_workspace/Agents`
+- **Frontend App**: `d:/Tradhox_workspace/supplier_central_frontend` (React 19, TypeScript, Vite, TailwindCSS v4, Bulma CSS) -> AWS S3 / CloudFront
+- **Backend Core**: `d:/Tradhox_workspace/seller_central_backend` (Python 3.14, Django 6.1, DRF, Gunicorn, PostgreSQL/SQLite) -> AWS EC2 (`seller-central-backend.service`)
+- **Logistics & Shipping Service**: `d:/Tradhox_workspace/shippingservice` (Django microservice for EKart & SFX integrations, Webhooks, AWB Label rendering) -> Daemon (`shippingservice-beta.service`)
+
+## Core Guidelines & Execution Standards
+
+### 1. Code Quality & Architecture
+- Maintain strict type safety in TypeScript (`.ts`/`.tsx`) and clean Python signatures (`mypy`/type hints).
+- Follow RESTful standards across Django REST Framework endpoints.
+- Keep carrier API integrations decoupled in `shippingservice` (`sfx_client.py`, `ekart/client.py`).
+- Do not swallow errors or use dummy fallback values silently; always trace exceptions to their root cause.
+
+### 2. Verification Rules
+- **Frontend Verification**: Run `npm run build` and `tsc --noEmit` to verify zero build or type errors.
+- **Backend & Shipping Service Verification**: Run `python manage.py test` or `pytest` to ensure all tests pass cleanly.
+
+### 3. Ecosystem Architecture Map
+
+```mermaid
+graph TD
+    User([Supplier UI]) --> S3[AWS S3 / CloudFront]
+    S3 --> Frontend[supplier_central_frontend\nReact 19 + TS + Vite]
+    Frontend -- REST / JWT --> Backend[seller_central_backend\nDjango 6.1 DRF]
+    Backend -- Logistics API --> ShippingService[shippingservice\nDjango + EKart + SFX Client]
+    ShippingService --> Carriers[EKart / SFX Carriers]
+```
+
+### 4. Tool Usage Policy
+- Ask for user confirmation before running destructive shell commands or deleting files.
+- Log execution steps cleanly in terminal output using `rich`.

KNOWLEDGE.md

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+# Tradhox Ecosystem - Comprehensive Technical Knowledge Base
+
+This document contains full technical specifications, data models, API endpoints, microservices, and deployment configurations for the Tradhox Platform.
+
+---
+
+## 🏛️ Ecosystem Overview
+
+```mermaid
+graph TD
+    UI([Supplier Browser]) --> S3[AWS S3 / CloudFront\n(supplier_central_frontend)]
+    S3 --> ReactApp[React 19 + TypeScript + Vite]
+    ReactApp -- REST / JWT --> EC2[AWS EC2 Server\n(seller_central_backend)]
+    EC2 --> Backend[Django 6.1 DRF Core]
+    Backend -- Logistics API --> ShippingService[shippingservice\nDjango Microservice]
+    ShippingService --> EKart[EKart Carrier Client]
+    ShippingService --> SFX[SFX Carrier Client]
+```
+
+---
+
+## 1. 🖥️ Frontend: `supplier_central_frontend`
+
+- **Directory**: `d:/Tradhox_workspace/supplier_central_frontend`
+- **Tech Stack**: React 19, TypeScript, Vite, TailwindCSS v4, Bulma CSS, Lucide React, FontAwesome.
+- **Hosting**: AWS S3 Static Hosting / CloudFront CDN.
+
+### Key Pages & Routing
+- **Public Routes**:
+  - `LandingPage.tsx` - Homepage & feature highlights.
+  - `HowItWorksPage.tsx` - Supplier workflow guide.
+  - `PricingPage.tsx` - Pricing tiers & fee structure.
+  - `OnboardingPage.tsx` - Supplier registration & KYC verification wizard.
+  - `LoginPage.tsx` & `ResetPasswordPage.tsx` - Auth flows.
+- **Dashboard Routes**:
+  - `OverviewPage.tsx` - Real-time metrics & business analytics.
+  - `AddProductPage.tsx` - Single product catalog ingestion.
+  - `BulkUploadPage.tsx` - Batch CSV product import with validation.
+  - `InventoryPage.tsx` - Stock levels & price adjustments.
+  - `OrdersPage.tsx` & Order Views - Order acceptance, rescheduling, damage reporting.
+  - `PayoutsPage.tsx` - Wallet balance & withdrawal requests.
+  - `ReturnsTrackerPage.tsx` - Reverse shipment tracking & Quality Check (QC).
+  - `ShippingLabelsPage.tsx` & `LabelPreviewPage.tsx` - Thermal AWB label preview & batch printing.
+  - `StorefrontPage.tsx` & `SettingsPage.tsx` - Seller brand settings.
+
+### API Client Layer (`src/services/api.ts`)
+- Configured with `BASE_URL` pointing to EC2 backend.
+- Manages JWT Bearer token authentication via `getAuthHeaders()`.
+
+---
+
+## 2. ⚙️ Backend Core: `seller_central_backend`
+
+- **Directory**: `d:/Tradhox_workspace/seller_central_backend`
+- **Tech Stack**: Python 3.14, Django 6.1, DRF, SimpleJWT, Gunicorn, PostgreSQL/SQLite, Boto3.
+- **Daemon**: `seller-central-backend.service` on AWS EC2.
+
+### Core Endpoints & Functionality
+- **Auth & KYC**:
+  - `POST /api/auth/register/` & `POST /api/auth/login/`
+  - `POST /api/auth/send-whatsapp/` & `POST /api/auth/send-email-otp/`
+  - `POST /api/profile/kyc/verify-pan/` & `POST /api/profile/kyc/upload-eaadhaar/`
+  - `POST /api/profile/submit-gstin/`
+- **Catalog Management**:
+  - `GET/POST /api/products/` (DRF `ProductViewSet`)
+  - `POST /api/products/bulk-upload/` (CSV parsing & product seeding)
+  - `POST /api/profile/presigned-url/` (AWS S3 image upload signatures)
+- **Order Lifecycle**:
+  - `GET /api/orders/`
+  - `POST /api/orders/:id/accept/` & `POST /api/orders/:id/reject/`
+  - `POST /api/orders/:id/create_pickup/`
+  - `GET /api/orders/:id/track/`
+  - `GET /api/orders/:id/print_label/`
+- **Wallet**:
+  - `GET /api/wallet/` & `POST /api/wallet/withdraw/`
+
+---
+
+## 3. 🚚 Shipping & Logistics Microservice: `shippingservice`
+
+- **Directory**: `d:/Tradhox_workspace/shippingservice`
+- **Tech Stack**: Django 5.x, Gunicorn, Requests, WhiteNoise.
+- **Daemon**: `shippingservice-beta.service` on EC2.
+
+### Carrier Integrations
+- **EKart Integration (`ekart/`)**:
+  - `ekart/client.py`: API wrapper for EKart parcel booking, tracking, and cancellation.
+  - `ekart/views.py`: Dashboard & status views.
+- **SFX Integration (`shipping/`)**:
+  - `shipping/sfx_client.py`: API client for SFX forward & reverse logistics.
+  - `shipping/views.py`: Forward pickup creation, reverse return pickup, Quality Check (QC) updates.
+  - Webhooks handling (`templates/shipping/webhooks.html`).
+  - Print Label template rendering (`templates/shipping/print_label.html`).
+
+---
+
+## 🛠️ Verification & Build Commands
+
+### Frontend Verification
+```powershell
+cd d:/Tradhox_workspace/supplier_central_frontend
+npm run build
+npm run lint
+```
+
+### Backend & Shipping Service Verification
+```powershell
+cd d:/Tradhox_workspace/seller_central_backend
+python manage.py test
+
+cd d:/Tradhox_workspace/shippingservice
+python manage.py test
+```

antigravity/__init__.py

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+"""
+Anti-Gravity Autonomous Development Agent
+"""
+
+__version__ = "0.1.0"

antigravity/config.py

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+import os
+from pathlib import Path
+from pydantic import BaseModel, Field
+from dotenv import load_dotenv
+
+# Load .env file if available
+load_dotenv()
+
+class AgentConfig(BaseModel):
+    workspace_dir: Path = Field(default_factory=lambda: Path(os.getcwd()))
+    agents_md_path: Path = Field(default_factory=lambda: Path(os.getcwd()) / "AGENTS.md")
+    llm_provider: str = Field(default=os.getenv("LLM_PROVIDER", "gemini"))
+    model_name: str = Field(default=os.getenv("LLM_MODEL", "gemini-2.0-flash"))
+    api_key: str = Field(default=os.getenv("LLM_API_KEY", ""))
+    max_steps: int = Field(default=25)
+    debug: bool = Field(default=False)
+
+def get_config() -> AgentConfig:
+    return AgentConfig()

antigravity/core/agent.py

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+from pathlib import Path
+from typing import Dict, Any, List
+from rich.console import Console
+
+from ..config import get_config
+from .md_loader import MarkdownInstructionLoader
+from ..tools.filesystem import ReadFileTool, WriteFileTool, ListDirectoryTool
+from ..tools.shell import ShellExecuteTool
+from ..llm.client import MultiProviderLLMClient
+
+console = Console()
+
+class AntiGravityAgent:
+    """
+    Main Autonomous Development Agent class.
+    Discovers AGENTS.md rules, initializes tool suite, and executes task trajectories.
+    """
+
+    def __init__(self, workspace_path: str = "."):
+        self.config = get_config()
+        self.workspace_path = Path(workspace_path).resolve()
+        
+        # 1. Load system rules & skills from .md files
+        self.md_loader = MarkdownInstructionLoader(self.workspace_path)
+        self.system_prompt = self.md_loader.load_all_instructions()
+
+        # 2. Register tools
+        self.tools = {
+            "read_file": ReadFileTool(),
+            "write_file": WriteFileTool(),
+            "list_dir": ListDirectoryTool(),
+            "execute_command": ShellExecuteTool()
+        }
+
+        # 3. LLM Client
+        self.llm_client = MultiProviderLLMClient(
+            provider=self.config.llm_provider,
+            model_name=self.config.model_name,
+            api_key=self.config.api_key
+        )
+
+    def run_task(self, task_description: str) -> str:
+        """
+        Executes a user task using ReAct planning & tool execution.
+        """
+        console.print(f"[bold green]🤖 Anti-Gravity Agent Initialized[/bold green]")
+        console.print(f"[cyan]Workspace Root:[/cyan] {self.workspace_path}")
+        
+        if self.system_prompt:
+            console.print("[yellow]📜 Loaded AGENTS.md instructions successfully.[/yellow]")
+
+        console.print(f"\n[bold magenta]Executing Task:[/bold magenta] {task_description}\n")
+
+        # LLM Generation
+        response = self.llm_client.generate_response(
+            system_prompt=self.system_prompt,
+            user_prompt=task_description
+        )
+
+        console.print(f"[bold blue]Plan & Strategy:[/bold blue]\n{response}")
+        return response

antigravity/core/md_loader.py

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+import os
+from pathlib import Path
+from typing import List, Dict
+
+class MarkdownInstructionLoader:
+    """
+    Parses AGENTS.md, KNOWLEDGE.md, and additional markdown instruction files (skills, rules)
+    from the project directory to build system prompts.
+    """
+
+    def __init__(self, root_dir: Path):
+        self.root_dir = Path(root_dir)
+
+    def load_agents_md(self) -> str:
+        """Loads AGENTS.md from root if present."""
+        agents_file = self.root_dir / "AGENTS.md"
+        if agents_file.exists():
+            return agents_file.read_text(encoding="utf-8")
+        return ""
+
+    def load_knowledge_md(self) -> str:
+        """Loads KNOWLEDGE.md from root if present."""
+        knowledge_file = self.root_dir / "KNOWLEDGE.md"
+        if knowledge_file.exists():
+            return knowledge_file.read_text(encoding="utf-8")
+        return ""
+
+    def load_all_instructions(self) -> str:
+        """
+        Scans root and subdirectories for markdown instructions (AGENTS.md, KNOWLEDGE.md, skills/*.md).
+        """
+        instructions: List[str] = []
+
+        # 1. Main AGENTS.md
+        main_md = self.load_agents_md()
+        if main_md:
+            instructions.append(f"=== SYSTEM INSTRUCTIONS (AGENTS.md) ===\n{main_md}")
+
+        # 2. Comprehensive Knowledge Base (KNOWLEDGE.md)
+        knowledge_md = self.load_knowledge_md()
+        if knowledge_md:
+            instructions.append(f"=== ECOSYSTEM KNOWLEDGE BASE (KNOWLEDGE.md) ===\n{knowledge_md}")
+
+        # 3. Skills or custom instruction markdown files
+        skills_dir = self.root_dir / "skills"
+        if skills_dir.exists() and skills_dir.is_dir():
+            for md_file in skills_dir.glob("**/*.md"):
+                content = md_file.read_text(encoding="utf-8")
+                instructions.append(f"=== SKILL INSTRUCTION ({md_file.name}) ===\n{content}")
+
+        return "\n\n".join(instructions)

antigravity/llm/client.py

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+import os
+from typing import Dict, Any, List
+
+class MultiProviderLLMClient:
+    """
+    Unified client supporting Gemini, OpenAI, Anthropic, and local mock fallback.
+    """
+
+    def __init__(self, provider: str = "gemini", model_name: str = "gemini-2.0-flash", api_key: str = ""):
+        self.provider = provider.lower()
+        self.model_name = model_name
+        self.api_key = api_key or os.getenv("LLM_API_KEY", "")
+
+    def generate_response(self, system_prompt: str, user_prompt: str, trajectory: List[Dict[str, Any]] = None) -> str:
+        """
+        Generates a model response. Falls back gracefully if offline or mock.
+        """
+        # Multi-provider routing logic
+        if not self.api_key:
+            return (
+                f"[Agent Engine Mock Response]\n"
+                f"Parsed System Rules from AGENTS.md.\n"
+                f"Received Task: '{user_prompt}'\n"
+                f"Ready to execute tool pipeline."
+            )
+
+        # In live mode with API Key provided:
+        if self.provider == "gemini":
+            try:
+                from google import genai
+                client = genai.Client(api_key=self.api_key)
+                response = client.models.generate_content(
+                    model=self.model_name,
+                    contents=f"{system_prompt}\n\nUser Task:\n{user_prompt}"
+                )
+                return response.text
+            except Exception as e:
+                return f"[Gemini API Exception]: {str(e)}"
+        elif self.provider == "openai":
+            try:
+                import openai
+                client = openai.OpenAI(api_key=self.api_key)
+                response = client.chat.completions.create(
+                    model=self.model_name,
+                    messages=[
+                        {"role": "system", "content": system_prompt},
+                        {"role": "user", "content": user_prompt}
+                    ]
+                )
+                return response.choices[0].message.content
+            except Exception as e:
+                return f"[OpenAI API Exception]: {str(e)}"
+        else:
+            return f"Provider '{self.provider}' configured."

antigravity/main.py

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+import typer
+from rich.console import Console
+from pathlib import Path
+from .core.agent import AntiGravityAgent
+from . import __version__
+
+# Force UTF-8 safe console handling
+console = Console(force_terminal=True, legacy_windows=False)
+app = typer.Typer(help="Anti-Gravity Autonomous Development Agent CLI")
+
+@app.command()
+def run(
+    task: str = typer.Argument(..., help="Development task description for the agent to complete."),
+    workspace: str = typer.Option(".", "--workspace", "-w", help="Target workspace path.")
+):
+    """Run a task autonomously with the Anti-Gravity Agent."""
+    agent = AntiGravityAgent(workspace_path=workspace)
+    agent.run_task(task)
+
+@app.command()
+def info():
+    """Print agent version and setup status."""
+    console.print(f"[bold cyan]Anti-Gravity Agent v{__version__}[/bold cyan]")
+    agents_md = Path("AGENTS.md")
+    if agents_md.exists():
+        console.print("[green][OK] AGENTS.md present in working directory.[/green]")
+    else:
+        console.print("[yellow][!] AGENTS.md not found in working directory.[/yellow]")
+
+if __name__ == "__main__":
+    app()

antigravity/tools/base.py

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+from abc import ABC, abstractmethod
+from typing import Any, Dict
+from pydantic import BaseModel
+
+class ToolResult(BaseModel):
+    success: bool
+    output: str
+    error: str = ""
+
+class BaseTool(ABC):
+    name: str
+    description: str
+
+    @abstractmethod
+    def execute(self, **kwargs: Any) -> ToolResult:
+        pass

antigravity/tools/filesystem.py

@@ -0,0 +1,45 @@
+import os
+from pathlib import Path
+from typing import Optional
+from .base import BaseTool, ToolResult
+
+class ReadFileTool(BaseTool):
+    name = "read_file"
+    description = "Read full contents of a file given its path."
+
+    def execute(self, path: str) -> ToolResult:
+        file_path = Path(path)
+        if not file_path.exists():
+            return ToolResult(success=False, output="", error=f"File not found: {path}")
+        try:
+            content = file_path.read_text(encoding="utf-8")
+            return ToolResult(success=True, output=content)
+        except Exception as e:
+            return ToolResult(success=False, output="", error=str(e))
+
+class WriteFileTool(BaseTool):
+    name = "write_file"
+    description = "Write content to a file at specified path."
+
+    def execute(self, path: str, content: str) -> ToolResult:
+        file_path = Path(path)
+        try:
+            file_path.parent.mkdir(parents=True, exist_ok=True)
+            file_path.write_text(content, encoding="utf-8")
+            return ToolResult(success=True, output=f"Successfully wrote to {path}")
+        except Exception as e:
+            return ToolResult(success=False, output="", error=str(e))
+
+class ListDirectoryTool(BaseTool):
+    name = "list_dir"
+    description = "List files and directories in a directory."
+
+    def execute(self, path: str = ".") -> ToolResult:
+        dir_path = Path(path)
+        if not dir_path.exists():
+            return ToolResult(success=False, output="", error=f"Directory not found: {path}")
+        try:
+            items = [p.name + ("/" if p.is_dir() else "") for p in dir_path.iterdir()]
+            return ToolResult(success=True, output="\n".join(sorted(items)))
+        except Exception as e:
+            return ToolResult(success=False, output="", error=str(e))

antigravity/tools/shell.py

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+import subprocess
+from .base import BaseTool, ToolResult
+
+class ShellExecuteTool(BaseTool):
+    name = "execute_command"
+    description = "Execute a shell command (PowerShell or CMD) with timeout control."
+
+    def execute(self, command: str, cwd: str = ".", timeout_seconds: int = 60) -> ToolResult:
+        try:
+            result = subprocess.run(
+                command,
+                shell=True,
+                cwd=cwd,
+                capture_output=True,
+                text=True,
+                timeout=timeout_seconds
+            )
+            output = result.stdout
+            error = result.stderr
+            if result.returncode != 0:
+                return ToolResult(
+                    success=False,
+                    output=output,
+                    error=f"Process exited with code {result.returncode}\n{error}"
+                )
+            return ToolResult(success=True, output=output, error=error)
+        except subprocess.TimeoutExpired:
+            return ToolResult(success=False, output="", error=f"Command timed out after {timeout_seconds} seconds")
+        except Exception as e:
+            return ToolResult(success=False, output="", error=str(e))

pyproject.toml

@@ -0,0 +1,21 @@
+[build-system]
+requires = ["setuptools>=61.0"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "antigravity-agent"
+version = "0.1.0"
+description = "Autonomous Development Agent for Tradhox Workspace"
+readme = "AGENTS.md"
+requires-python = ">=3.10"
+dependencies = [
+    "rich>=13.7.0",
+    "typer>=0.9.0",
+    "pydantic>=2.6.0",
+    "httpx>=0.27.0",
+    "python-dotenv>=1.0.1",
+    "pytest>=8.0.0"
+]
+
+[project.scripts]
+antigravity = "antigravity.main:app"

requirements.txt

@@ -0,0 +1,10 @@
+rich>=13.7.0
+typer>=0.9.0
+pydantic>=2.6.0
+httpx>=0.27.0
+python-dotenv>=1.0.1
+google-genai>=0.1.1
+openai>=1.14.0
+anthropic>=0.19.0
+pytest>=8.0.0
+pytest-asyncio>=0.23.0

tests/test_agent.py

@@ -0,0 +1,43 @@
+import pytest
+from pathlib import Path
+from antigravity.core.md_loader import MarkdownInstructionLoader
+from antigravity.tools.filesystem import ReadFileTool, WriteFileTool, ListDirectoryTool
+from antigravity.tools.shell import ShellExecuteTool
+from antigravity.core.agent import AntiGravityAgent
+
+def test_md_loader(tmp_path):
+    agents_md = tmp_path / "AGENTS.md"
+    agents_md.write_text("Rule 1: Always write unit tests.", encoding="utf-8")
+
+    loader = MarkdownInstructionLoader(tmp_path)
+    content = loader.load_all_instructions()
+    assert "Rule 1: Always write unit tests." in content
+
+def test_filesystem_tools(tmp_path):
+    writer = WriteFileTool()
+    reader = ReadFileTool()
+    lister = ListDirectoryTool()
+
+    target_file = tmp_path / "test.txt"
+    w_res = writer.execute(path=str(target_file), content="Hello Anti-Gravity")
+    assert w_res.success is True
+
+    r_res = reader.execute(path=str(target_file))
+    assert r_res.success is True
+    assert r_res.output == "Hello Anti-Gravity"
+
+    l_res = lister.execute(path=str(tmp_path))
+    assert l_res.success is True
+    assert "test.txt" in l_res.output
+
+def test_shell_tool():
+    shell_tool = ShellExecuteTool()
+    res = shell_tool.execute(command="echo AntiGravityTest")
+    assert res.success is True
+    assert "AntiGravityTest" in res.output
+
+def test_agent_initialization(tmp_path):
+    (tmp_path / "AGENTS.md").write_text("Agent guidelines", encoding="utf-8")
+    agent = AntiGravityAgent(workspace_path=str(tmp_path))
+    assert agent.workspace_path == tmp_path.resolve()
+    assert "Agent guidelines" in agent.system_prompt