diff --git a/packages/package_validator/seed/scripts/tests/metadata.test.lua b/packages/package_validator/seed/scripts/tests/metadata.test.lua
index 7d7019d06..bfd947766 100644
--- a/packages/package_validator/seed/scripts/tests/metadata.test.lua
+++ b/packages/package_validator/seed/scripts/tests/metadata.test.lua
@@ -114,4 +114,180 @@ describe("Metadata Schema Validation", function()
     local valid, errors = metadata_schema.validate_metadata(invalid_metadata)
     expect(valid).toBe(false)
   end)
+
+  -- Tests for primary flag
+  it("should validate primary: true", function()
+    local valid_metadata = {
+      packageId = "test_package",
+      name = "Test Package",
+      version = "1.0.0",
+      description = "A test package",
+      author = "MetaBuilder",
+      category = "test",
+      primary = true
+    }
+
+    local valid, errors = metadata_schema.validate_metadata(valid_metadata)
+    expect(valid).toBe(true)
+  end)
+
+  it("should validate primary: false", function()
+    local valid_metadata = {
+      packageId = "test_package",
+      name = "Test Package",
+      version = "1.0.0",
+      description = "A test package",
+      author = "MetaBuilder",
+      category = "test",
+      primary = false
+    }
+
+    local valid, errors = metadata_schema.validate_metadata(valid_metadata)
+    expect(valid).toBe(true)
+  end)
+
+  it("should fail when primary is not boolean", function()
+    local invalid_metadata = {
+      packageId = "test_package",
+      name = "Test Package",
+      version = "1.0.0",
+      description = "A test package",
+      author = "MetaBuilder",
+      category = "test",
+      primary = "yes"
+    }
+
+    local valid, errors = metadata_schema.validate_metadata(invalid_metadata)
+    expect(valid).toBe(false)
+  end)
+
+  -- Tests for permissions
+  it("should validate valid permissions", function()
+    local valid_metadata = {
+      packageId = "test_package",
+      name = "Test Package",
+      version = "1.0.0",
+      description = "A test package",
+      author = "MetaBuilder",
+      category = "test",
+      permissions = {
+        ["test.read"] = { minLevel = 1, description = "Read test data" },
+        ["test.write"] = { minLevel = 2, description = "Write test data" }
+      }
+    }
+
+    local valid, errors = metadata_schema.validate_metadata(valid_metadata)
+    expect(valid).toBe(true)
+  end)
+
+  it("should fail when permission key is invalid", function()
+    local invalid_metadata = {
+      packageId = "test_package",
+      name = "Test Package",
+      version = "1.0.0",
+      description = "A test package",
+      author = "MetaBuilder",
+      category = "test",
+      permissions = {
+        ["Test.Read"] = { minLevel = 1, description = "Read test data" }
+      }
+    }
+
+    local valid, errors = metadata_schema.validate_metadata(invalid_metadata)
+    expect(valid).toBe(false)
+  end)
+
+  it("should fail when permission minLevel is missing", function()
+    local invalid_metadata = {
+      packageId = "test_package",
+      name = "Test Package",
+      version = "1.0.0",
+      description = "A test package",
+      author = "MetaBuilder",
+      category = "test",
+      permissions = {
+        ["test.read"] = { description = "Read test data" }
+      }
+    }
+
+    local valid, errors = metadata_schema.validate_metadata(invalid_metadata)
+    expect(valid).toBe(false)
+  end)
+
+  it("should fail when permission description is missing", function()
+    local invalid_metadata = {
+      packageId = "test_package",
+      name = "Test Package",
+      version = "1.0.0",
+      description = "A test package",
+      author = "MetaBuilder",
+      category = "test",
+      permissions = {
+        ["test.read"] = { minLevel = 1 }
+      }
+    }
+
+    local valid, errors = metadata_schema.validate_metadata(invalid_metadata)
+    expect(valid).toBe(false)
+  end)
+
+  it("should validate permissions with featureFlags", function()
+    local valid_metadata = {
+      packageId = "test_package",
+      name = "Test Package",
+      version = "1.0.0",
+      description = "A test package",
+      author = "MetaBuilder",
+      category = "test",
+      permissions = {
+        ["test.advanced"] = {
+          minLevel = 3,
+          description = "Advanced features",
+          featureFlags = { "beta_features", "advanced_mode" }
+        }
+      }
+    }
+
+    local valid, errors = metadata_schema.validate_metadata(valid_metadata)
+    expect(valid).toBe(true)
+  end)
+
+  it("should validate permissions with requireDatabase", function()
+    local valid_metadata = {
+      packageId = "test_package",
+      name = "Test Package",
+      version = "1.0.0",
+      description = "A test package",
+      author = "MetaBuilder",
+      category = "test",
+      permissions = {
+        ["test.db_action"] = {
+          minLevel = 2,
+          description = "Database action",
+          requireDatabase = true
+        }
+      }
+    }
+
+    local valid, errors = metadata_schema.validate_metadata(valid_metadata)
+    expect(valid).toBe(true)
+  end)
+
+  it("should allow minLevel 0 for public permissions", function()
+    local valid_metadata = {
+      packageId = "test_package",
+      name = "Test Package",
+      version = "1.0.0",
+      description = "A test package",
+      author = "MetaBuilder",
+      category = "test",
+      minLevel = 0,
+      permissions = {
+        ["test.public"] = { minLevel = 0, description = "Public action" }
+      }
+    }
+
+    local valid, errors = metadata_schema.validate_metadata(valid_metadata)
+    expect(valid).toBe(true)
+  end)
 end)