diff --git a/crates/light-client-verifier/src/mock.rs b/crates/light-client-verifier/src/mock.rs
index 421c812..9ac6592 100644
--- a/crates/light-client-verifier/src/mock.rs
+++ b/crates/light-client-verifier/src/mock.rs
@@ -109,4 +109,13 @@ impl<const SYNC_COMMITTEE_SIZE: usize> LightClientStoreReader<SYNC_COMMITTEE_SIZ
     fn next_sync_committee(&self) -> Option<SyncCommittee<SYNC_COMMITTEE_SIZE>> {
         self.next_sync_committee.clone()
     }
+
+    fn ensure_relevant_update<CC: ChainContext, C: ConsensusUpdate<SYNC_COMMITTEE_SIZE>>(
+        &self,
+        _ctx: &CC,
+        _update: &C,
+    ) -> Result<(), crate::errors::Error> {
+        // every update is relevant
+        Ok(())
+    }
 }
diff --git a/crates/light-client-verifier/src/state.rs b/crates/light-client-verifier/src/state.rs
index 14c151a..e097104 100644
--- a/crates/light-client-verifier/src/state.rs
+++ b/crates/light-client-verifier/src/state.rs
@@ -8,10 +8,10 @@ pub trait LightClientStoreReader<const SYNC_COMMITTEE_SIZE: usize> {
     /// Returns the current sync committee period
     fn current_period<CC: ChainContext>(&self, ctx: &CC) -> SyncCommitteePeriod;
 
-    /// Returns the current sync committee corresponding to the current period if available
+    /// Returns the current sync committee corresponding to the `current_period()` if available
     fn current_sync_committee(&self) -> Option<SyncCommittee<SYNC_COMMITTEE_SIZE>>;
 
-    /// Returns the next sync committee corresponding to the next period if available
+    /// Returns the next sync committee corresponding to the `current_period() + 1` if available
     fn next_sync_committee(&self) -> Option<SyncCommittee<SYNC_COMMITTEE_SIZE>>;
 
     /// Returns the sync committee corresponding to the given signature period if available
@@ -31,14 +31,12 @@ pub trait LightClientStoreReader<const SYNC_COMMITTEE_SIZE: usize> {
         }
     }
 
-    /// Returns a error indicating whether the update is relevant to the light client store.
+    /// Returns a error indicating whether the update is relevant to this store.
     ///
     /// This method should be used to determine whether the update should be applied to the store.
     fn ensure_relevant_update<CC: ChainContext, C: ConsensusUpdate<SYNC_COMMITTEE_SIZE>>(
         &self,
-        _ctx: &CC,
-        _update: &C,
-    ) -> Result<(), Error> {
-        Ok(())
-    }
+        ctx: &CC,
+        update: &C,
+    ) -> Result<(), Error>;
 }