diff --git a/pr_description.txt b/pr_description.txt
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+🎯 **What:** The `_memory_entry` helper function in `router/memory_mcp.py` was previously completely untested. This function is responsible for converting a raw dictionary representation of a memory entry from LiteLLM into a structured dictionary used by the MCP.
+
+📊 **Coverage:** The new `test_memory_mcp.py` file covers several scenarios for the `_memory_entry` dictionary translation helper:
+- **Happy Path:** Tests that valid and complete memory dictionaries are properly parsed, mapped, and typed.
+- **Invalid Key:** Verifies that if a memory has a key that does not start with `"memory:"`, the function properly returns `None`.
+- **Malformed/String Value:** Tests the graceful fallback when a memory value is a raw string instead of the expected JSON payload, ensuring it still parses the string into the `data` field and initializes an empty `tags` array without throwing a JSON decode error.
+- **Missing Fields:** Tests dictionary inputs that are missing either `"key"` or `"value"` or both to ensure graceful behavior, fallback values, and early exits without `KeyError`s.
+
+✨ **Result:** Increased code reliability and coverage for the core memory data transformation logic with pure, isolated dictionary tests ensuring zero runtime side effects.
diff --git a/test_memory_mcp.py b/test_memory_mcp.py
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+++ b/test_memory_mcp.py
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+#!/usr/bin/env python3
+import json
+import pytest
+from router.memory_mcp import _memory_entry
+
+def test_memory_entry_happy_path():
+    """Test correctly formatted and complete memory entry."""
+    valid_key = "memory:global:project_standards::1689201948123:a1b2c3d4e5f6"
+    valid_value = json.dumps({"data": "Use pytest for all tests", "tags": ["testing", "python"]})
+    lmem = {
+        "key": valid_key,
+        "value": valid_value,
+        "memory_id": "test_id_123"
+    }
+
+    result = _memory_entry(lmem)
+
+    assert result is not None
+    assert result["key"] == valid_key
+    assert result["category"] == "project_standards"
+    assert result["data"] == "Use pytest for all tests"
+    assert result["tags"] == ["testing", "python"]
+    assert result["scope"] == "global"
+    assert result["timestamp"] == "1689201948123"
+    assert result["memory_id"] == "test_id_123"
+
+def test_memory_entry_invalid_key():
+    """Test with a key that does not start with 'memory:'."""
+    lmem = {
+        "key": "notamemory:global:cat::123:hash",
+        "value": json.dumps({"data": "test", "tags": []})
+    }
+
+    result = _memory_entry(lmem)
+    assert result is None
+
+def test_memory_entry_malformed_json_value():
+    """Test with malformed/string value where JSON parsing fails."""
+    valid_key = "memory:local:notes::1689201948123:a1b2c3d4e5f6"
+    # value is just a raw string, not JSON
+    lmem = {
+        "key": valid_key,
+        "value": "This is just a raw string without tags"
+    }
+
+    result = _memory_entry(lmem)
+
+    assert result is not None
+    assert result["data"] == "This is just a raw string without tags"
+    assert result["tags"] == [] # Falls back to empty tags list
+    assert result["category"] == "notes"
+    assert result["scope"] == "local"
+
+def test_memory_entry_missing_fields():
+    """Test gracefully handling dictionaries with missing keys."""
+    # Missing 'value' and 'memory_id'
+    lmem1 = {
+        "key": "memory:global:ideas::123:hash"
+    }
+    result1 = _memory_entry(lmem1)
+    assert result1 is not None
+    assert result1["data"] == ""
+    assert result1["tags"] == []
+    assert result1["memory_id"] == ""
+
+    # Missing 'key'
+    lmem2 = {
+        "value": json.dumps({"data": "test", "tags": []})
+    }
+    result2 = _memory_entry(lmem2)
+    assert result2 is None
+
+    # Empty dict
+    result3 = _memory_entry({})
+    assert result3 is None