diff --git a/README_BRIEF.md b/README_BRIEF.md
new file mode 100644
index 0000000..59c24da
--- /dev/null
+++ b/README_BRIEF.md
@@ -0,0 +1,2 @@
+DeltaForge MVP scaffold for real-time cross-venue hedging across assets.
+This repository provides core DSL primitives, a minimal ADMM-like coordinator, two starter adapters, a toy backtester, and a test harness.
diff --git a/deltaforge/__init__.py b/deltaforge/__init__.py
new file mode 100644
index 0000000..5c774bc
--- /dev/null
+++ b/deltaforge/__init__.py
@@ -0,0 +1,7 @@
+"""
+DeltaForge MVP: Core package initialization.
+"""
+from .dsl import StrategyDelta, Asset, MarketSignal, PlanDelta
+from .coordinator import Coordinator
+
+__all__ = ["StrategyDelta", "Asset", "MarketSignal", "PlanDelta", "Coordinator"]
diff --git a/deltaforge/adapters/equity_feed.py b/deltaforge/adapters/equity_feed.py
new file mode 100644
index 0000000..5bd99e6
--- /dev/null
+++ b/deltaforge/adapters/equity_feed.py
@@ -0,0 +1,19 @@
+from __future__ import annotations
+import time
+from typing import List
+from ..dsl import Asset, MarketSignal
+
+class EquityFeedAdapter:
+    """
+    Starter equity feed adapter.
+    In a real system this would connect to a streaming data source.
+    Here we provide a deterministic, test-friendly generator.
+    """
+    def __init__(self, asset_symbol: str = "AAPL"):
+        self.asset = Asset(id="eq-"+asset_symbol, type="equity", symbol=asset_symbol)
+        self.start = time.time()
+
+    def poll_signals(self) -> List[MarketSignal]:
+        t = time.time() - self.start
+        price = 150.0 + (t % 5)  # deterministic-ish
+        return [MarketSignal(asset=self.asset, timestamp=t, price=price, liquidity=1.0)]
diff --git a/deltaforge/adapters/options_feed.py b/deltaforge/adapters/options_feed.py
new file mode 100644
index 0000000..bfa7aae
--- /dev/null
+++ b/deltaforge/adapters/options_feed.py
@@ -0,0 +1,17 @@
+from __future__ import annotations
+import time
+from typing import List
+from ..dsl import Asset, MarketSignal
+
+class OptionsFeedAdapter:
+    """
+    Starter options feed adapter (toy).
+    """
+    def __init__(self, symbol: str = "AAPL-20260120-150C"):
+        self.asset = Asset(id="opt-"+symbol, type="option", symbol=symbol)
+        self.start = time.time()
+
+    def poll_signals(self) -> List[MarketSignal]:
+        t = time.time() - self.start
+        price = 5.0 + (t % 1.5)
+        return [MarketSignal(asset=self.asset, timestamp=t, price=price, liquidity=1.0)]
diff --git a/deltaforge/backtester.py b/deltaforge/backtester.py
new file mode 100644
index 0000000..eafa679
--- /dev/null
+++ b/deltaforge/backtester.py
@@ -0,0 +1,26 @@
+from __future__ import annotations
+from typing import List
+from .dsl import MarketSignal, PlanDelta
+
+class Backtester:
+    """
+    Tiny deterministic replay engine.
+    Applies PlanDelta actions to a simple PnL model.
+    """
+    def __init__(self, initial_cash: float = 100000.0):
+        self.cash = initial_cash
+        self.positions: List[dict] = []
+
+    def apply(self, signals: List[MarketSignal], plan: PlanDelta) -> float:
+        # Very simple PnL: sum(action.size * current_price) and adjust cash
+        pnl = 0.0
+        for act in plan.delta:
+            symbol = act.get("symbol") or act.get("asset") or "UNKNOWN"
+            size = act.get("size", 0.0)
+            price = act.get("price") or act.get("premium") or 0.0
+            if price is None:
+                price = 0.0
+            pnl += size * price
+            self.positions.append({"symbol": symbol, "size": size, "price": price})
+        self.cash += pnl
+        return self.cash
diff --git a/deltaforge/coordinator.py b/deltaforge/coordinator.py
new file mode 100644
index 0000000..aac2fec
--- /dev/null
+++ b/deltaforge/coordinator.py
@@ -0,0 +1,27 @@
+from __future__ import annotations
+from typing import List
+from .dsl import MarketSignal, PlanDelta
+
+class Coordinator:
+    """
+    Lightweight ADMM-like coordinator.
+    It collects MarketSignals from multiple venues and emits a PlanDelta
+    representing a synchronized hedging action.
+    This is a minimal, deterministic stub suitable for MVP testing.
+    """
+    def __init__(self, contract_id: str = "default-contract"):
+        self.contract_id = contract_id
+        self.last_plan: PlanDelta | None = None
+
+    def coordinate(self, signals: List[MarketSignal], author: str = "coordinator") -> PlanDelta:
+        # Very small heuristic: if two assets present, generate a delta-neutral hedge
+        actions: List[dict] = []
+        # Simple rule: create a hedge adjustment based on price relative to last plan
+        for s in signals:
+            if s.asset.type == "equity":
+                actions.append({"action": "hedge", "symbol": s.asset.symbol, "size": -0.5, "price": s.price, "ts": s.timestamp})
+            elif s.asset.type == "option":
+                actions.append({"action": "adjust", "symbol": s.asset.symbol, "size": -0.25, "premium": s.price, "ts": s.timestamp})
+        plan = PlanDelta(delta=actions, timestamp=signals[0].timestamp if signals else 0.0, author=author, contract_id=self.contract_id)
+        self.last_plan = plan
+        return plan
diff --git a/deltaforge/dsl.py b/deltaforge/dsl.py
new file mode 100644
index 0000000..bc15fc6
--- /dev/null
+++ b/deltaforge/dsl.py
@@ -0,0 +1,58 @@
+from __future__ import annotations
+from dataclasses import dataclass, field
+from typing import List, Optional, Any
+
+def _validate_non_empty(name: str, value: Any) -> None:
+    if value is None or (isinstance(value, (str, list, dict)) and len(value) == 0):
+        raise ValueError(f"{name} must be non-empty")
+
+@dataclass
+class Asset:
+    id: str
+    type: str  # "equity" | "option" | "future"
+    symbol: str
+
+    def __post_init__(self):
+        _validate_non_empty("Asset.id", self.id)
+        _validate_non_empty("Asset.type", self.type)
+        _validate_non_empty("Asset.symbol", self.symbol)
+
+@dataclass
+class MarketSignal:
+    asset: Asset
+    timestamp: float
+    price: float
+    liquidity: float = 1.0
+    extra: dict = field(default_factory=dict)
+
+    def __post_init__(self):
+        _validate_non_empty("MarketSignal.asset", self.asset)
+        if self.timestamp is None or self.price is None:
+            raise ValueError("MarketSignal timestamp/price required")
+
+@dataclass
+class PlanDelta:
+    delta: List[dict]  # A list of actions, simplified
+    timestamp: float
+    author: str
+    contract_id: Optional[str] = None
+    privacy_budget: Optional[dict] = None
+
+    def __post_init__(self):
+        _validate_non_empty("PlanDelta.delta", self.delta)
+        if self.timestamp is None:
+            raise ValueError("PlanDelta.timestamp required")
+
+@dataclass
+class StrategyDelta:
+    id: str
+    assets: List[Asset]
+    objectives: dict
+    constraints: dict = field(default_factory=dict)
+    version: int = 1
+
+    def __post_init__(self):
+        _validate_non_empty("StrategyDelta.id", self.id)
+        _validate_non_empty("StrategyDelta.assets", self.assets)
+        if not isinstance(self.assets, list) or len(self.assets) == 0:
+            raise ValueError("StrategyDelta.assets must be a non-empty list")
diff --git a/pyproject.toml b/pyproject.toml
index eaee05c..d7a8f32 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,13 +1,10 @@
 [build-system]
-requires = ["setuptools>=42", "wheel"]
+requires = ["setuptools", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [project]
-name = "deltaforge-mvp"
-version = "0.1.0"
-description = "Minimal MVP scaffolding for DeltaForge cross-venue hedgingEngine"
+name = "deltaforge"
+version = "0.0.1"
+description = "MVP: cross-venue hedging engine scaffold"
 readme = "README.md"
-requires-python = ">=3.8"
-license = {text = "MIT"}
-authors = [ { name = "DeltaForge MVP" } ]
-dependencies = ["numpy"]
+requires-python = ">=3.9"
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..eddbbc9
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,10 @@
+from setuptools import setup, find_packages
+
+setup(
+    name="deltaforge",
+    version="0.0.1",
+    description="MVP: cross-venue hedging engine scaffold",
+    packages=find_packages(include=["deltaforge", "deltaforge.*"]),
+    include_package_data=True,
+    install_requires=[],
+)
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 0000000..484a2f3
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,4 @@
+import sys, os
+ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
+if ROOT not in sys.path:
+    sys.path.insert(0, ROOT)
diff --git a/tests/test_backtester.py b/tests/test_backtester.py
new file mode 100644
index 0000000..ff215c9
--- /dev/null
+++ b/tests/test_backtester.py
@@ -0,0 +1,11 @@
+from deltaforge.backtester import Backtester
+from deltaforge.dsl import Asset, MarketSignal
+from deltaforge.dsl import PlanDelta
+
+def test_backtester_runs_deterministic():
+    a = Asset(id="eq-XYZ", type="equity", symbol="XYZ")
+    s = MarketSignal(asset=a, timestamp=0.0, price=10.0)
+    plan = PlanDelta(delta=[{"action": "hedge", "symbol": "XYZ", "size": -1.0, "price": 10.0}], timestamp=0.0, author="tester")
+    bt = Backtester(initial_cash=1000.0)
+    final_cash = bt.apply([s], plan)
+    assert final_cash == 1000.0 - 1.0 * 10.0 + 0  # initial cash minus hedge cost
diff --git a/tests/test_coordinator.py b/tests/test_coordinator.py
new file mode 100644
index 0000000..6dee382
--- /dev/null
+++ b/tests/test_coordinator.py
@@ -0,0 +1,13 @@
+from deltaforge.coordinator import Coordinator
+from deltaforge.dsl import Asset, MarketSignal
+
+def test_coordinator_creates_plan_delta():
+    a1 = Asset(id="eq-XYZ", type="equity", symbol="XYZ")
+    a2 = Asset(id="eq-ABC", type="equity", symbol="ABC")
+    s1 = MarketSignal(asset=a1, timestamp=1.0, price=10.0)
+    s2 = MarketSignal(asset=a2, timestamp=1.1, price=20.0)
+    c = Coordinator(contract_id="test-contract")
+    plan = c.coordinate([s1, s2], author="tester")
+    assert plan is not None
+    assert plan.contract_id == "test-contract"
+    assert isinstance(plan.delta, list)
diff --git a/tests/test_dsl.py b/tests/test_dsl.py
new file mode 100644
index 0000000..ac4b44a
--- /dev/null
+++ b/tests/test_dsl.py
@@ -0,0 +1,22 @@
+import math
+from deltaforge.dsl import Asset, MarketSignal, PlanDelta, StrategyDelta
+
+def test_asset_and_signals_creation():
+    a = Asset(id="eq-ABC", type="equity", symbol="ABC")
+    ms = MarketSignal(asset=a, timestamp=1.0, price=100.0)
+    assert a.symbol == "ABC"
+    assert ms.asset.symbol == "ABC"
+    assert ms.price == 100.0
+
+def test_plan_delta_creation():
+    a = Asset(id="eq-ABC", type="equity", symbol="ABC")
+    ms = MarketSignal(asset=a, timestamp=1.0, price=100.0)
+    plan = PlanDelta(delta=[{"action": "hedge", "symbol": "ABC", "size": -0.5, "price": 100.0}], timestamp=1.0, author="tester")
+    assert isinstance(plan.delta, list)
+    assert plan.author == "tester"
+    assert plan.timestamp == 1.0
+
+def test_strategy_delta_creation():
+    a = Asset(id="eq-ABC", type="equity", symbol="ABC")
+    sd = StrategyDelta(id="s1", assets=[a], objectives={"maximize": "return"})
+    assert sd.assets[0].symbol == "ABC"