diff --git a/crates/openshell-driver-podman/src/container.rs b/crates/openshell-driver-podman/src/container.rs
index d01179095..cae477618 100644
--- a/crates/openshell-driver-podman/src/container.rs
+++ b/crates/openshell-driver-podman/src/container.rs
@@ -14,7 +14,6 @@ use openshell_core::{driver_mounts, proto_struct};
 use serde::Serialize;
 use serde_json::Value;
 use std::collections::{BTreeMap, HashSet};
-#[cfg(target_os = "linux")]
 use std::path::Path;
 
 /// Returns `true` when `SELinux` is enabled (enforcing or permissive).
diff --git a/crates/openshell-supervisor-middleware/src/lib.rs b/crates/openshell-supervisor-middleware/src/lib.rs
index d9972223e..5351bbdd9 100644
--- a/crates/openshell-supervisor-middleware/src/lib.rs
+++ b/crates/openshell-supervisor-middleware/src/lib.rs
@@ -437,6 +437,7 @@ pub enum TransformedBodyPolicy<'a> {
 pub struct HttpRequestInput {
     pub request_id: String,
     pub sandbox_id: String,
+    pub sandbox_name: String,
     pub scheme: String,
     pub host: String,
     pub port: u16,
@@ -1581,6 +1582,7 @@ impl ChainRunner {
         let HttpRequestInput {
             request_id,
             sandbox_id,
+            sandbox_name,
             scheme,
             host,
             port,
@@ -1597,6 +1599,7 @@ impl ChainRunner {
         let context = RequestContext {
             request_id,
             sandbox_id,
+            sandbox_name,
             originating_process: None,
         };
         let target = HttpRequestTarget {
@@ -2047,7 +2050,8 @@ mod tests {
     fn input(body: &str) -> HttpRequestInput {
         HttpRequestInput {
             request_id: "req".into(),
-            sandbox_id: "sbx".into(),
+            sandbox_id: "sbx-id".into(),
+            sandbox_name: "sbx-name".into(),
             scheme: "https".into(),
             host: "api.example.com".into(),
             port: 443,
@@ -3215,7 +3219,8 @@ mod tests {
         assert_eq!(received[0].config.as_ref(), Some(&evaluation_config));
         let context = received[0].context.as_ref().expect("request context");
         assert_eq!(context.request_id, "req");
-        assert_eq!(context.sandbox_id, "sbx");
+        assert_eq!(context.sandbox_id, "sbx-id");
+        assert_eq!(context.sandbox_name, "sbx-name");
         assert!(context.originating_process.is_none());
         let target = received[0].target.as_ref().expect("request target");
         assert_eq!(target.scheme, "https");
@@ -4678,6 +4683,7 @@ mod tests {
             session_id: session_id.into(),
             request_id: "request".into(),
             sandbox_id: "sandbox".into(),
+            sandbox_name: "sandbox-name".into(),
             scheme: "wss".into(),
             host: "api.openai.com".into(),
             port: 443,
@@ -5111,6 +5117,7 @@ mod tests {
                     session_id: "builtin-regex-session".into(),
                     request_id: "request".into(),
                     sandbox_id: "sandbox".into(),
+                    sandbox_name: "sandbox-name".into(),
                     scheme: "wss".into(),
                     host: "api.openai.com".into(),
                     port: 443,
@@ -5177,6 +5184,7 @@ mod tests {
                     session_id: "builtin-regex-gap-session".into(),
                     request_id: "request".into(),
                     sandbox_id: "sandbox".into(),
+                    sandbox_name: "sandbox-name".into(),
                     scheme: "wss".into(),
                     host: "api.openai.com".into(),
                     port: 443,
@@ -5239,6 +5247,7 @@ mod tests {
                     session_id: "in-process-session".into(),
                     request_id: "request".into(),
                     sandbox_id: "sandbox".into(),
+                    sandbox_name: "sandbox-name".into(),
                     scheme: "wss".into(),
                     host: "api.openai.com".into(),
                     port: 443,
@@ -5310,6 +5319,7 @@ mod tests {
                     session_id: "ws-session".into(),
                     request_id: "request".into(),
                     sandbox_id: "sandbox".into(),
+                    sandbox_name: "sandbox-name".into(),
                     scheme: "wss".into(),
                     host: "api.openai.com".into(),
                     port: 443,
@@ -5394,6 +5404,7 @@ mod tests {
                     session_id: "ws-session".into(),
                     request_id: "request".into(),
                     sandbox_id: "sandbox".into(),
+                    sandbox_name: "sandbox-name".into(),
                     scheme: "ws".into(),
                     host: "api.openai.com".into(),
                     port: 80,
@@ -5689,6 +5700,7 @@ mod tests {
                     session_id: "session".into(),
                     request_id: "request".into(),
                     sandbox_id: "sandbox".into(),
+                    sandbox_name: "sandbox-name".into(),
                     scheme: "wss".into(),
                     host: "api.openai.com".into(),
                     port: 443,
diff --git a/crates/openshell-supervisor-middleware/src/websocket.rs b/crates/openshell-supervisor-middleware/src/websocket.rs
index cea7addb0..48891dd3f 100644
--- a/crates/openshell-supervisor-middleware/src/websocket.rs
+++ b/crates/openshell-supervisor-middleware/src/websocket.rs
@@ -38,6 +38,7 @@ pub struct WebSocketPreflightInput {
     pub session_id: String,
     pub request_id: String,
     pub sandbox_id: String,
+    pub sandbox_name: String,
     pub scheme: String,
     pub host: String,
     pub port: u16,
@@ -920,6 +921,7 @@ async fn open_stage(entry: DescribedChainEntry, input: WebSocketPreflightInput)
         context: Some(RequestContext {
             request_id: input.request_id,
             sandbox_id: input.sandbox_id,
+            sandbox_name: input.sandbox_name,
             originating_process: None,
         }),
         target: Some(HttpRequestTarget {
diff --git a/crates/openshell-supervisor-network/src/l7/middleware.rs b/crates/openshell-supervisor-network/src/l7/middleware.rs
index b8c863f0c..56f518fbf 100644
--- a/crates/openshell-supervisor-network/src/l7/middleware.rs
+++ b/crates/openshell-supervisor-network/src/l7/middleware.rs
@@ -480,6 +480,7 @@ pub async fn apply_middleware_chain_for_scheme<C: AsyncRead + AsyncWrite + Unpin
         // unresolved binding is handled before the body is read) and forward
         // the original request unchanged if the chain allows.
         let input = middleware_request_input(
+            openshell_ocsf::ctx::ctx(),
             scheme,
             &req,
             ctx,
@@ -525,6 +526,7 @@ pub async fn apply_middleware_chain_for_scheme<C: AsyncRead + AsyncWrite + Unpin
     let headers = safe_middleware_headers(&buffered.headers)?;
     let query = raw_query_from_request_headers(&buffered.headers)?;
     let input = middleware_request_input(
+        openshell_ocsf::ctx::ctx(),
         scheme,
         &req,
         ctx,
@@ -607,7 +609,9 @@ pub async fn send_middleware_admission_exhausted_response<
     .await
 }
 
+#[allow(clippy::too_many_arguments)]
 pub(super) fn middleware_request_input(
+    sandbox: &openshell_ocsf::SandboxContext,
     scheme: &str,
     req: &crate::l7::provider::L7Request,
     ctx: &L7EvalContext,
@@ -618,7 +622,8 @@ pub(super) fn middleware_request_input(
 ) -> openshell_supervisor_middleware::HttpRequestInput {
     openshell_supervisor_middleware::HttpRequestInput {
         request_id: uuid::Uuid::new_v4().to_string(),
-        sandbox_id: openshell_ocsf::ctx::ctx().sandbox_id.clone(),
+        sandbox_id: sandbox.sandbox_id.clone(),
+        sandbox_name: sandbox.sandbox_name.clone(),
         scheme: scheme.into(),
         host: ctx.host.clone(),
         port: ctx.port,
@@ -1079,6 +1084,51 @@ mod tests {
         assert!(!body.to_string().contains("secret-value"));
     }
 
+    #[test]
+    fn middleware_input_carries_real_sandbox_name() {
+        let sandbox = openshell_ocsf::SandboxContext {
+            sandbox_id: "sbx-123".into(),
+            sandbox_name: "nightly-build".into(),
+            container_image: String::new(),
+            hostname: "h".into(),
+            product_version: "0".into(),
+            proxy_ip: [127, 0, 0, 1].into(),
+            proxy_port: 3128,
+        };
+
+        let eval = L7EvalContext {
+            host: "api.example.test".into(),
+            port: 443,
+            policy_name: "api-policy".into(),
+            binary_path: "/usr/bin/curl".into(),
+            ancestors: Vec::new(),
+            cmdline_paths: Vec::new(),
+            secret_resolver: None,
+            ..Default::default()
+        };
+        let req = crate::l7::provider::L7Request {
+            action: "POST".into(),
+            target: "/v1/messages".into(),
+            query_params: std::collections::HashMap::new(),
+            raw_header: Vec::new(),
+            body_length: crate::l7::provider::BodyLength::None,
+        };
+
+        let input = super::middleware_request_input(
+            &sandbox,
+            "https",
+            &req,
+            &eval,
+            Vec::new(),
+            Vec::new(),
+            String::new(),
+            Vec::new(),
+        );
+
+        assert_eq!(input.sandbox_name, "nightly-build");
+        assert_eq!(input.sandbox_id, "sbx-123");
+    }
+
     #[tokio::test]
     async fn middleware_failure_uses_platform_response_without_policy_guidance() {
         let ctx = L7EvalContext {
diff --git a/crates/openshell-supervisor-network/src/l7/relay.rs b/crates/openshell-supervisor-network/src/l7/relay.rs
index 6bd0a9847..46a4b370b 100644
--- a/crates/openshell-supervisor-network/src/l7/relay.rs
+++ b/crates/openshell-supervisor-network/src/l7/relay.rs
@@ -990,6 +990,7 @@ pub(crate) async fn websocket_middleware_preflight(
                 session_id: uuid::Uuid::new_v4().to_string(),
                 request_id: uuid::Uuid::new_v4().to_string(),
                 sandbox_id: openshell_ocsf::ctx::ctx().sandbox_id.clone(),
+                sandbox_name: openshell_ocsf::ctx::ctx().sandbox_name.clone(),
                 scheme: scheme.to_string(),
                 host: ctx.host.clone(),
                 port: ctx.port,
@@ -5870,6 +5871,7 @@ network_policies:
         };
 
         let input = middleware_request_input(
+            openshell_ocsf::ctx::ctx(),
             "http",
             &req,
             &ctx,
diff --git a/crates/openshell-supervisor-network/src/l7/websocket.rs b/crates/openshell-supervisor-network/src/l7/websocket.rs
index 7ba286b10..bdb54a9bc 100644
--- a/crates/openshell-supervisor-network/src/l7/websocket.rs
+++ b/crates/openshell-supervisor-network/src/l7/websocket.rs
@@ -3598,6 +3598,7 @@ network_policies:
                     session_id: "session".into(),
                     request_id: "request".into(),
                     sandbox_id: "sandbox".into(),
+                    sandbox_name: "sandbox-name".into(),
                     scheme: scheme.into(),
                     host: "api.openai.com".into(),
                     port: if scheme == "wss" { 443 } else { 80 },
@@ -4482,6 +4483,7 @@ network_policies:
                     session_id: "session".into(),
                     request_id: "request".into(),
                     sandbox_id: "sandbox".into(),
+                    sandbox_name: "sandbox-name".into(),
                     scheme: "wss".into(),
                     host: "api.openai.com".into(),
                     port: 443,
@@ -4629,6 +4631,7 @@ network_policies:
                     session_id: "disabled-session".into(),
                     request_id: "request".into(),
                     sandbox_id: "sandbox".into(),
+                    sandbox_name: "sandbox-name".into(),
                     scheme: "wss".into(),
                     host: "api.openai.com".into(),
                     port: 443,
@@ -4748,6 +4751,7 @@ network_policies:
                     session_id: "builtin-regex-session".into(),
                     request_id: "request".into(),
                     sandbox_id: "sandbox".into(),
+                    sandbox_name: "sandbox-name".into(),
                     scheme: "wss".into(),
                     host: "api.openai.com".into(),
                     port: 443,
diff --git a/crates/openshell-supervisor-network/src/opa.rs b/crates/openshell-supervisor-network/src/opa.rs
index 6dd92b40d..f3278d60f 100644
--- a/crates/openshell-supervisor-network/src/opa.rs
+++ b/crates/openshell-supervisor-network/src/opa.rs
@@ -7123,6 +7123,7 @@ network_policies:
                 session_id,
                 request_id: "request".into(),
                 sandbox_id: "sandbox".into(),
+                sandbox_name: "sandbox-name".into(),
                 scheme: "wss".into(),
                 host: "api.openai.com".into(),
                 port: 443,
diff --git a/docs/extensibility/supervisor-middleware.mdx b/docs/extensibility/supervisor-middleware.mdx
index 42beedeff..db529a147 100644
--- a/docs/extensibility/supervisor-middleware.mdx
+++ b/docs/extensibility/supervisor-middleware.mdx
@@ -41,6 +41,8 @@ If post-transformation policy evaluation itself fails, OpenShell denies the requ
 
 Middleware receives the request before credential injection. Operator-run services cannot inspect OpenShell-managed credentials. Middleware-visible request headers are delivered in wire order and repeated header names are preserved as separate entries. OpenShell filters credential, routing, framing, and hop-by-hop headers before invoking middleware. It rejects malformed request headers and unsupported transfer-coding sequences before middleware or policy dispatch. Headers named by a request's `Connection` field are omitted from middleware input and removed before forwarding, except for the validated WebSocket upgrade pair.
 
+The request context identifies the originating sandbox to operator-run services. It carries the sandbox ID (`sandbox_id`) and the sandbox name (`sandbox_name`), letting audit and approval interfaces show a human-readable name instead of an opaque ID. The name is best-effort: a supervisor that cannot resolve it, or an older supervisor that predates the field, sends an empty string. Services should fall back to the sandbox ID when the name is empty.
+
 ## Choose a Middleware Type
 
 | Type | Registration | Payload limit | Deployment |
diff --git a/proto/supervisor_middleware.proto b/proto/supervisor_middleware.proto
index 2c7c63c11..61ea44247 100644
--- a/proto/supervisor_middleware.proto
+++ b/proto/supervisor_middleware.proto
@@ -280,6 +280,8 @@ message RequestContext {
   string sandbox_id = 2;
   // Workload process that originated the request, when available.
   Process originating_process = 3;
+  // Sandbox name that originated the request.
+  string sandbox_name = 4;
 }
 
 // HttpRequestTarget describes the admitted HTTP destination and request target.