diff --git a/docs/RFC-STORE.md b/docs/RFC-STORE.md
index 25299da..171fbd2 100644
--- a/docs/RFC-STORE.md
+++ b/docs/RFC-STORE.md
@@ -40,7 +40,7 @@ SQLite-backed key-value store with TTL, namespace isolation, reactive events, an
 ## 4. Store Struct
 
 ```go
-// Store is the SQLite KV store with optional InfluxDB journal backing.
+// Store is the SQLite KV store with optional SQLite journal backing.
 type Store struct {
     db      *sql.DB            // SQLite connection (single, WAL mode)
     journal influxdb2.Client   // InfluxDB client (nil if no journal configured)
@@ -255,7 +255,7 @@ func (s *Store) Compact(opts CompactOptions) core.Result { }
 
 Output: gzip JSONL files. Each line is a complete unit of work — ready for training data ingestion, CDN publishing, or long-term analytics.
 
-### 7.6 File Lifecycle
+### 8.1 File Lifecycle
 
 Workspace files are ephemeral:
 
@@ -288,5 +288,5 @@ func (s *Store) RecoverOrphans(stateDir string) []*Workspace { }
 
 | Resource | Location |
 |----------|----------|
-| Core Go RFC | `code/core/go/RFC.md` |
-| IO RFC | `code/core/go/io/RFC.md` |
+| Architecture docs | `docs/architecture.md` |
+| Development guide | `docs/development.md` |
diff --git a/scope.go b/scope.go
index 4e4120d..0c91c78 100644
--- a/scope.go
+++ b/scope.go
@@ -207,13 +207,13 @@ func (scopedStore *ScopedStore) Count(group string) (int, error) {
 // Usage example: `keyCount, err := scopedStore.CountAll("config")`
 // Usage example: `keyCount, err := scopedStore.CountAll()`
 func (scopedStore *ScopedStore) CountAll(groupPrefix ...string) (int, error) {
-	return scopedStore.storeInstance.CountAll(scopedStore.namespacedGroup(firstString(groupPrefix)))
+	return scopedStore.storeInstance.CountAll(scopedStore.namespacedGroup(firstScopedString(groupPrefix)))
 }
 
 // Usage example: `groupNames, err := scopedStore.Groups("config")`
 // Usage example: `groupNames, err := scopedStore.Groups()`
 func (scopedStore *ScopedStore) Groups(groupPrefix ...string) ([]string, error) {
-	groupNames, err := scopedStore.storeInstance.Groups(scopedStore.namespacedGroup(firstString(groupPrefix)))
+	groupNames, err := scopedStore.storeInstance.Groups(scopedStore.namespacedGroup(firstScopedString(groupPrefix)))
 	if err != nil {
 		return nil, err
 	}
@@ -228,7 +228,7 @@ func (scopedStore *ScopedStore) Groups(groupPrefix ...string) ([]string, error)
 func (scopedStore *ScopedStore) GroupsSeq(groupPrefix ...string) iter.Seq2[string, error] {
 	return func(yield func(string, error) bool) {
 		namespacePrefix := scopedStore.namespacePrefix()
-		for groupName, err := range scopedStore.storeInstance.GroupsSeq(scopedStore.namespacedGroup(firstString(groupPrefix))) {
+		for groupName, err := range scopedStore.storeInstance.GroupsSeq(scopedStore.namespacedGroup(firstScopedString(groupPrefix))) {
 			if err != nil {
 				if !yield("", err) {
 					return
@@ -427,7 +427,7 @@ func (scopedStoreTransaction *ScopedStoreTransaction) CountAll(groupPrefix ...st
 	if err := scopedStoreTransaction.ensureReady("store.ScopedStoreTransaction.CountAll"); err != nil {
 		return 0, err
 	}
-	return scopedStoreTransaction.storeTransaction.CountAll(scopedStoreTransaction.scopedStore.namespacedGroup(firstString(groupPrefix)))
+	return scopedStoreTransaction.storeTransaction.CountAll(scopedStoreTransaction.scopedStore.namespacedGroup(firstScopedString(groupPrefix)))
 }
 
 // Usage example: `groupNames, err := scopedStoreTransaction.Groups("config")`
@@ -437,7 +437,7 @@ func (scopedStoreTransaction *ScopedStoreTransaction) Groups(groupPrefix ...stri
 		return nil, err
 	}
 
-	groupNames, err := scopedStoreTransaction.storeTransaction.Groups(scopedStoreTransaction.scopedStore.namespacedGroup(firstString(groupPrefix)))
+	groupNames, err := scopedStoreTransaction.storeTransaction.Groups(scopedStoreTransaction.scopedStore.namespacedGroup(firstScopedString(groupPrefix)))
 	if err != nil {
 		return nil, err
 	}
@@ -457,7 +457,7 @@ func (scopedStoreTransaction *ScopedStoreTransaction) GroupsSeq(groupPrefix ...s
 		}
 
 		namespacePrefix := scopedStoreTransaction.scopedStore.namespacePrefix()
-		for groupName, err := range scopedStoreTransaction.storeTransaction.GroupsSeq(scopedStoreTransaction.scopedStore.namespacedGroup(firstString(groupPrefix))) {
+		for groupName, err := range scopedStoreTransaction.storeTransaction.GroupsSeq(scopedStoreTransaction.scopedStore.namespacedGroup(firstScopedString(groupPrefix))) {
 			if err != nil {
 				if !yield("", err) {
 					return
@@ -601,7 +601,7 @@ func (scopedStore *ScopedStore) checkQuota(operation, group, key string) error {
 	return nil
 }
 
-func firstString(values []string) string {
+func firstScopedString(values []string) string {
 	if len(values) == 0 {
 		return ""
 	}