diff --git a/internal/runtime/executor/devin_executor_test.go b/internal/runtime/executor/devin_executor_test.go
index 791d02b7e..fd142588c 100644
--- a/internal/runtime/executor/devin_executor_test.go
+++ b/internal/runtime/executor/devin_executor_test.go
@@ -87,13 +87,13 @@ func TestDevinExecutor_GetSensitiveWords(t *testing.T) {
 	eWithWords := &DevinExecutor{
 		cfg: &config.Config{
 			Devin: config.DevinConfig{
-				SensitiveWords: []string{"Hermes", "Claude Agent SDK"},
+				SensitiveWords: []string{"sample-word-1", "sample-word-2"},
 			},
 		},
 	}
 	words := eWithWords.getSensitiveWords()
-	if len(words) != 2 || words[0] != "Hermes" || words[1] != "Claude Agent SDK" {
-		t.Errorf("words = %v, want [Hermes Claude Agent SDK]", words)
+	if len(words) != 2 || words[0] != "sample-word-1" || words[1] != "sample-word-2" {
+		t.Errorf("words = %v, want [sample-word-1 sample-word-2]", words)
 	}
 }
 
diff --git a/internal/runtime/executor/helps/devin_wire.go b/internal/runtime/executor/helps/devin_wire.go
index cdba5ec88..81b78fe52 100644
--- a/internal/runtime/executor/helps/devin_wire.go
+++ b/internal/runtime/executor/helps/devin_wire.go
@@ -527,10 +527,7 @@ func SanitizeDevinSystemPrompt(prompt string, matcher *SensitiveWordMatcher) str
 		if util.IsClaudeCodeAttributionSystemText(trimmed) {
 			continue
 		}
-		if strings.HasPrefix(trimmed, "You are Claude Code") || strings.HasPrefix(trimmed, "You are a Claude agent") || strings.HasPrefix(trimmed, "You are an agent for Claude Code") {
-			continue
-		}
-		if strings.Contains(trimmed, "Claude Agent SDK") || strings.Contains(trimmed, "avoid using emojis") {
+		if strings.HasPrefix(trimmed, "You are Claude Code") {
 			continue
 		}
 		if strings.Contains(trimmed, "authorized security testing") || strings.Contains(trimmed, "destructive techniques, DoS attacks") {
diff --git a/internal/runtime/executor/helps/devin_wire_test.go b/internal/runtime/executor/helps/devin_wire_test.go
index 17b777552..58d3ae1d6 100644
--- a/internal/runtime/executor/helps/devin_wire_test.go
+++ b/internal/runtime/executor/helps/devin_wire_test.go
@@ -141,14 +141,14 @@ func TestBuildDevinGetChatMessageRequest_SensitiveWordsOnlyInSystemPrompt(t *tes
 
 func TestSanitizeDevinSystemPrompt_AndSensitiveWords(t *testing.T) {
 	matcher := BuildSensitiveWordMatcher([]string{"API", "proxy"})
-	rawPrompt := "x-anthropic-billing-header: cc_version=2.1.260;\nYou are Claude Code, Anthropic's official CLI for Claude.\nYou are a Claude agent, built on Anthropic's Claude Agent SDK.\n- For clear communication with the user the assistant MUST avoid using emojis.\nHelp the project with API and proxy."
+	rawPrompt := "x-anthropic-billing-header: cc_version=2.1.260;\nYou are Claude Code, Anthropic's official CLI for Claude.\nHelp the project with API and proxy."
 	sanitized := SanitizeDevinSystemPrompt(rawPrompt, matcher)
 
 	if strings.Contains(sanitized, "x-anthropic-billing-header") {
 		t.Errorf("sanitized prompt still contains billing header: %s", sanitized)
 	}
-	if strings.Contains(sanitized, "You are Claude Code") || strings.Contains(sanitized, "Claude Agent SDK") || strings.Contains(sanitized, "avoid using emojis") {
-		t.Errorf("sanitized prompt still contains blocked Claude subagent phrases: %s", sanitized)
+	if strings.Contains(sanitized, "You are Claude Code") {
+		t.Errorf("sanitized prompt still contains Claude Code identity: %s", sanitized)
 	}
 	if strings.Contains(sanitized, "API") && !strings.Contains(sanitized, zeroWidthSpace) {
 		t.Errorf("API was not obfuscated with zero-width space")