diff --git a/internal/session/history.go b/internal/session/history.go
index 5d3f4f4..fefc8b7 100644
--- a/internal/session/history.go
+++ b/internal/session/history.go
@@ -23,14 +23,14 @@ func FormatHistory(entries []Entry, excludePhase string) string {
 	var b strings.Builder
 	b.WriteString("## Session history\n\n")
 	for _, e := range filtered {
-		b.WriteString(fmt.Sprintf("### Phase: %s\n", e.Phase))
-		b.WriteString(fmt.Sprintf("- Skill: %s\n", e.Skill))
-		b.WriteString(fmt.Sprintf("- Status: %s\n", e.FinalStatus))
+		fmt.Fprintf(&b, "### Phase: %s\n", e.Phase)      //nolint:errcheck // strings.Builder never errors
+		fmt.Fprintf(&b, "- Skill: %s\n", e.Skill)        //nolint:errcheck
+		fmt.Fprintf(&b, "- Status: %s\n", e.FinalStatus) //nolint:errcheck
 		if e.FilePath != "" {
-			b.WriteString(fmt.Sprintf("- File: %s\n", e.FilePath))
+			fmt.Fprintf(&b, "- File: %s\n", e.FilePath) //nolint:errcheck
 		}
 		if e.Message != "" {
-			b.WriteString(fmt.Sprintf("- Summary: %s\n", e.Message))
+			fmt.Fprintf(&b, "- Summary: %s\n", e.Message) //nolint:errcheck
 		}
 		b.WriteString("\n")
 	}