diff --git a/crates/mem-ingest/src/obsidian_ref_source.rs b/crates/mem-ingest/src/obsidian_ref_source.rs
index e51ddac..42e0430 100644
--- a/crates/mem-ingest/src/obsidian_ref_source.rs
+++ b/crates/mem-ingest/src/obsidian_ref_source.rs
@@ -70,11 +70,13 @@ impl ObsidianRefSource {
     }
 
     /// Check if a file path is allowed (matches configured prefixes)
+    #[allow(dead_code)]
     fn is_allowed_path(&self, path: &str) -> bool {
         self.allowed_paths.iter().any(|prefix| path.starts_with(prefix))
     }
 
     /// Chunk reference document via heading-boundary logic
+    #[allow(dead_code)]
     fn chunk_document(&self, path: &str, content: &str) -> Vec<Record> {
         // M3.6.1 heading-boundary chunking
         // - Split by headings
diff --git a/crates/mem-llm/src/embeddings.rs b/crates/mem-llm/src/embeddings.rs
index fa30c18..fa17741 100644
--- a/crates/mem-llm/src/embeddings.rs
+++ b/crates/mem-llm/src/embeddings.rs
@@ -27,6 +27,7 @@ struct EmbeddingRequest {
 }
 
 #[derive(Debug, Deserialize)]
+#[allow(dead_code)]
 #[serde(untagged)]
 enum EmbeddingResponse {
     Success {
diff --git a/crates/mem-store/src/audit_logger.rs b/crates/mem-store/src/audit_logger.rs
index 5ce909f..7613cfd 100644
--- a/crates/mem-store/src/audit_logger.rs
+++ b/crates/mem-store/src/audit_logger.rs
@@ -1,7 +1,6 @@
 use chrono::{DateTime, Utc};
 use sqlx::PgPool;
 use uuid::Uuid;
-use serde_json::json;
 
 /// Minimal audit logger - records version snapshots on mutation
 #[derive(Clone)]