diff --git a/guards/github-guard/rust-guard/src/labels/helpers.rs b/guards/github-guard/rust-guard/src/labels/helpers.rs
index 2ec0c61e..3cb25097 100644
--- a/guards/github-guard/rust-guard/src/labels/helpers.rs
+++ b/guards/github-guard/rust-guard/src/labels/helpers.rs
@@ -1269,8 +1269,7 @@ pub fn collaborator_permission_floor(
     match normalized.as_str() {
         "admin" | "maintain" | "write" => writer_integrity(scope, ctx),
         "triage" | "read" => reader_integrity(scope, ctx),
-        "none" => vec![],
-        _ => vec![],
+        _ => vec![], // "none" or any unrecognised value → no integrity
     }
 }
 
diff --git a/guards/github-guard/rust-guard/src/labels/mod.rs b/guards/github-guard/rust-guard/src/labels/mod.rs
index 88d38cc7..efd10c42 100644
--- a/guards/github-guard/rust-guard/src/labels/mod.rs
+++ b/guards/github-guard/rust-guard/src/labels/mod.rs
@@ -34,10 +34,6 @@ mod response_items;
 mod response_paths;
 pub mod tool_rules;
 
-// Re-export commonly used items for backward compatibility
-#[allow(unused_imports)]
-pub use constants::MEDIUM_BUFFER_SIZE;
-
 // Re-export helpers - these are part of the public API and used by tests
 // The unused_imports warning is suppressed because these are intentionally
 // re-exported for external modules and tests, not used within mod.rs itself