diff --git a/lucidia/spiral_agent.py b/lucidia/spiral_agent.py
new file mode 100644
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+++ b/lucidia/spiral_agent.py
@@ -0,0 +1,58 @@
+"""
+Spiral Agent Module for Lucidia.
+
+The SpiralAgent coordinates iterative evolution of a symbolic state using
+Lucidia's codex recursion functions. It updates an internal state based
+on incoming events and persists the state via the memory manager.
+"""
+
+from __future__ import annotations
+
+from typing import Any, Dict
+
+from .codex_recursion import breath_state_derivative, self_awakening_function
+from .memory_manager import load_memory, save_memory
+
+
+class SpiralAgent:
+    """
+    A minimal agent that manages a recursively evolving state.
+
+    The SpiralAgent uses the breath_state_derivative to update a numerical
+    state and applies the self_awakening_function to update memory based
+    on events. The current state is persisted between runs.
+    """
+
+    def __init__(self) -> None:
+        self.memory: Dict[str, Any] = load_memory()
+        # Initialize the internal state from memory or default to 0.0
+        self.state: float = self.memory.get("spiral_state", 0.0)  # type: ignore
+
+    def evolve(self, event: str) -> float:
+        """
+        Evolve the internal state based on an event.
+
+        Args:
+            event: A description of the event influencing evolution.
+
+        Returns:
+            The updated state value.
+        """
+        # Compute derivative of current state.
+        derivative = breath_state_derivative(event, self.state)  # type: ignore
+        # Update state with derivative. Use try/except in case derivative is non-numeric.
+        try:
+            self.state += derivative  # type: ignore
+        except Exception:
+            # If derivative is not numeric, reset the state to derivative directly.
+            self.state = derivative  # type: ignore
+        # Apply self awakening to memory.
+        self.memory = self_awakening_function(event, self.memory)  # type: ignore
+        # Persist updated state in memory.
+        self.memory["spiral_state"] = self.state
+        save_memory(self.memory)
+        return self.state
+
+    def get_state(self) -> float:
+        """Return the current spiral state."""
+        return self.state