diff --git a/adk-rust/crates/detmir-portal/src/main.rs b/adk-rust/crates/detmir-portal/src/main.rs
index 5bd96d0..376cc18 100644
--- a/adk-rust/crates/detmir-portal/src/main.rs
+++ b/adk-rust/crates/detmir-portal/src/main.rs
@@ -31,6 +31,7 @@ mod portal_roles;
 mod production;
 mod readiness_api;
 mod risk_narrative;
+mod role_access;
 mod workforce_kpi_explain;
 
 use api_contracts::api_contract_summary;
@@ -52,6 +53,7 @@ use readiness_api::{readiness_bundle, readiness_latest, readiness_verify};
 use risk_narrative::{
     RiskNarrativeInputs, RiskNarrativeQuery, build_risk_narrative, build_risk_narrative_from_report,
 };
+use role_access::{portal_role_from_request, respond_forbidden, role_envelope};
 use workforce_kpi_explain::{KpiExplainQuery, build_workforce_kpi_explain};
 
 const INDEX_HTML: &str = include_str!("static/index.html");
@@ -1663,45 +1665,6 @@ fn handle_evidence_only_request(request: Request, args: &Cli) -> Result<()> {
     )
 }
 
-fn portal_role_from_request(request: &Request, url: &str) -> PortalRole {
-    query_param(url, "role")
-        .as_deref()
-        .and_then(PortalRole::parse)
-        .or_else(|| {
-            request
-                .headers()
-                .iter()
-                .find(|header| header.field.equiv("X-AWatch-Role"))
-                .and_then(|header| PortalRole::parse(header.value.as_str()))
-        })
-        .unwrap_or(PortalRole::Executive)
-}
-
-fn role_envelope(role: PortalRole, scope: &str) -> Value {
-    json!({
-        "role": role.as_str(),
-        "role_label": role.label_ru(),
-        "scope": scope,
-        "allowed_scopes": role.allowed_scopes(),
-        "server_enforced": true,
-    })
-}
-
-fn respond_forbidden(request: Request, role: PortalRole, scope: &str) -> Result<()> {
-    respond_json_status(
-        request,
-        StatusCode(403),
-        &json!({
-            "ok": false,
-            "error": "forbidden",
-            "message": format!("Роль {} не имеет доступа к контуру {scope}", role.label_ru()),
-            "role": role.as_str(),
-            "scope": scope,
-            "server_enforced": true,
-        }),
-    )
-}
-
 fn cached_snapshot(args: &Cli, cache: &SnapshotCache) -> Snapshot {
     let mut guard = cache.lock().expect("snapshot cache mutex poisoned");
     if let Some(cached) = guard.as_ref() {
diff --git a/adk-rust/crates/detmir-portal/src/role_access.rs b/adk-rust/crates/detmir-portal/src/role_access.rs
new file mode 100644
index 0000000..dfaa166
--- /dev/null
+++ b/adk-rust/crates/detmir-portal/src/role_access.rs
@@ -0,0 +1,52 @@
+//! Portal role extraction and access-denial helpers.
+//!
+//! CONTRACT: role aliases, role envelope fields and forbidden response shape
+//! are part of the portal security boundary. Keep changes explicit and covered
+//! by role-gate tests.
+
+use anyhow::Result;
+use serde_json::{Value, json};
+use tiny_http::{Request, StatusCode};
+
+use crate::path_query::query_param;
+use crate::portal_roles::PortalRole;
+use crate::respond_json_status;
+
+pub(crate) fn portal_role_from_request(request: &Request, url: &str) -> PortalRole {
+    query_param(url, "role")
+        .as_deref()
+        .and_then(PortalRole::parse)
+        .or_else(|| {
+            request
+                .headers()
+                .iter()
+                .find(|header| header.field.equiv("X-AWatch-Role"))
+                .and_then(|header| PortalRole::parse(header.value.as_str()))
+        })
+        .unwrap_or(PortalRole::Executive)
+}
+
+pub(crate) fn role_envelope(role: PortalRole, scope: &str) -> Value {
+    json!({
+        "role": role.as_str(),
+        "role_label": role.label_ru(),
+        "scope": scope,
+        "allowed_scopes": role.allowed_scopes(),
+        "server_enforced": true,
+    })
+}
+
+pub(crate) fn respond_forbidden(request: Request, role: PortalRole, scope: &str) -> Result<()> {
+    respond_json_status(
+        request,
+        StatusCode(403),
+        &json!({
+            "ok": false,
+            "error": "forbidden",
+            "message": format!("Роль {} не имеет доступа к контуру {scope}", role.label_ru()),
+            "role": role.as_str(),
+            "scope": scope,
+            "server_enforced": true,
+        }),
+    )
+}