diff --git a/check_codegen.go b/check_codegen.go
index 99314eb..4084493 100644
--- a/check_codegen.go
+++ b/check_codegen.go
@@ -42,7 +42,37 @@ func init() {
 				fmt.Println("  SKIP: no sqlc or buf codegen targets found")
 			}
 
+			protoFreshness, protoFreshnessErr := checkProtoGeneratedFreshness(ctx.repoRoot)
+			if protoFreshnessErr != nil {
+				fmt.Printf("  ERROR: failed to run make proto freshness check: %v\n", protoFreshnessErr)
+				if protoFreshness.output != "" {
+					for line := range strings.SplitSeq(protoFreshness.output, "\n") {
+						fmt.Printf("      %s\n", line)
+					}
+				}
+				rep.Fail()
+			} else if protoFreshness.changed() {
+				fmt.Println("  FAIL: make proto changed generated outputs; run make proto and commit the generated files.")
+				fmt.Println("    before:")
+				printIndentedStatus(protoFreshness.beforeStatus)
+				fmt.Println("    after:")
+				printIndentedStatus(protoFreshness.afterStatus)
+				rep.Fail()
+			} else if protoFreshness.checked {
+				fmt.Println("  OK: make proto freshness check clean")
+			}
+
 			fmt.Println()
 		},
 	})
 }
+
+func printIndentedStatus(status string) {
+	if strings.TrimSpace(status) == "" {
+		fmt.Println("      (clean)")
+		return
+	}
+	for line := range strings.SplitSeq(status, "\n") {
+		fmt.Printf("      %s\n", line)
+	}
+}
diff --git a/comingsoon.go b/comingsoon.go
index 5569a3e..39311b6 100644
--- a/comingsoon.go
+++ b/comingsoon.go
@@ -18,14 +18,14 @@ type comingSoonViolation struct {
 }
 
 var comingSoonAllowedFiles = map[string]bool{
-	"components/pages/system-pages-list.tsx":                          true, // Real system page type
-	"components/settings/ai-action-matrix.tsx":                       true, // AI task for site status copy
-	"components/settings/site-settings-form.tsx":                     true, // Settings navigation text
-	"components/settings/site-status-section.tsx":                    true, // Legitimate Site Status feature UI
-	"lib/nav-items.ts":                                               true, // Admin navigation metadata
-	"routes/admin/pages.tsx":                                         true, // System page type enum wiring
-	"lib/api/gen/blockninja/v1/pages_pb.d.ts":                       true, // Generated proto enum SYSTEM_PAGE_TYPE_COMING_SOON
-	"lib/api/gen/blockninja/v1/settings_pb.d.ts":                    true, // Generated proto enum SITE_MODE_COMING_SOON
+	"components/pages/system-pages-list.tsx":      true, // Real system page type
+	"components/settings/ai-action-matrix.tsx":    true, // AI task for site status copy
+	"components/settings/site-settings-form.tsx":  true, // Settings navigation text
+	"components/settings/site-status-section.tsx": true, // Legitimate Site Status feature UI
+	"lib/nav-items.ts":                            true, // Admin navigation metadata
+	"routes/admin/pages.tsx":                      true, // System page type enum wiring
+	"lib/api/gen/blockninja/v1/pages_pb.d.ts":     true, // Generated proto enum SYSTEM_PAGE_TYPE_COMING_SOON
+	"lib/api/gen/blockninja/v1/settings_pb.d.ts":  true, // Generated proto enum SITE_MODE_COMING_SOON
 }
 
 var placeholderCopyPatterns = []*regexp.Regexp{
@@ -138,6 +138,12 @@ func checkPlaceholderLanguage(roots []todoScanRoot) []comingSoonViolation {
 			if strings.HasSuffix(path, "_test.go") || strings.HasSuffix(path, ".test.tsx") {
 				return nil
 			}
+			slashPath := filepath.ToSlash(path)
+			if strings.Contains(slashPath, "/generated/") ||
+				strings.HasSuffix(slashPath, ".pb.go") ||
+				strings.HasSuffix(slashPath, ".connect.go") {
+				return nil
+			}
 			if strings.Contains(filepath.ToSlash(path), "cmd/check-safety/") {
 				return nil
 			}
diff --git a/proto_rbac.go b/proto_rbac.go
index 3e09343..79c41a4 100644
--- a/proto_rbac.go
+++ b/proto_rbac.go
@@ -28,6 +28,13 @@ type protoOwnershipViolation struct {
 	coreProto string
 }
 
+type protoFreshnessResult struct {
+	checked      bool
+	beforeStatus string
+	afterStatus  string
+	output       string
+}
+
 var (
 	bufModulePathPattern = regexp.MustCompile(`^(?:-\s*)?path:\s*"?([^"\s]+)"?\s*$`)
 	protoPackagePattern  = regexp.MustCompile(`^\s*package\s+([A-Za-z0-9_.]+)\s*;\s*$`)
@@ -729,6 +736,52 @@ func countRBACRoles(protoMethods []string, roleByMethod map[string]string) map[s
 	return counts
 }
 
+func checkProtoGeneratedFreshness(repoRoot string) (protoFreshnessResult, error) {
+	result := protoFreshnessResult{}
+	if !samePath(repoRoot, blockNinjaRepoRoot()) {
+		return result, nil
+	}
+	if !fileExists(filepath.Join(repoRoot, "Makefile")) || !fileExists(filepath.Join(repoRoot, "buf.gen.yaml")) {
+		return result, nil
+	}
+
+	result.checked = true
+	before, err := protoGeneratedStatus(repoRoot)
+	if err != nil {
+		return result, err
+	}
+	result.beforeStatus = before
+
+	output, runErr := runCommand(repoRoot, "make", "proto")
+	result.output = output
+
+	after, statusErr := protoGeneratedStatus(repoRoot)
+	if statusErr != nil {
+		return result, statusErr
+	}
+	result.afterStatus = after
+
+	if runErr != nil {
+		return result, fmt.Errorf("make proto failed: %w", runErr)
+	}
+	return result, nil
+}
+
+func (r protoFreshnessResult) changed() bool {
+	return r.checked && r.beforeStatus != r.afterStatus
+}
+
+func protoGeneratedStatus(repoRoot string) (string, error) {
+	paths := []string{
+		"backend/internal/api",
+		"backend/internal/mcpserver/generated",
+		"packages/api/src",
+	}
+	args := []string{"status", "--porcelain=v1", "--untracked-files=all", "--"}
+	args = append(args, paths...)
+	return runCommand(repoRoot, "git", args...)
+}
+
 func printRoleBreakdown(roleCounts map[string]int) {
 	orderedRoles := []string{"public", "viewer", "user", "admin", "superadmin", "cms"}
 	printed := make(map[string]bool)