refactor(compute): remove driver feature negotiation

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

Author: drew

.agents/skills/debug-openshell-cluster/SKILL.md

@@ -199,8 +199,8 @@ running intent should stop before the gateway exits and restart after it
 returns. Check for `Stopped sandbox during gateway shutdown` and `Started
 sandbox during gateway startup` in gateway logs. A sandbox explicitly stopped
 through the CLI remains stopped. Kubernetes sandboxes are cluster-owned and do
-not follow this local gateway lifecycle. An external driver follows it only
-when `GetCapabilities` advertises `GATEWAY_MANAGED_LIFECYCLE`.
+not follow this local gateway lifecycle. An external driver configured under a
+different name is not included in the local gateway lifecycle sweep.
 
 ### Step 5: Check Podman-Backed Gateways
 

architecture/compute-runtimes.md

@@ -24,13 +24,11 @@ references to gateway-internal types. The gateway owns the public
 implementing `ComputeDriver` out of tree.
 
 `compute_driver.proto` is the supported gateway/driver extension boundary.
-At initialization the gateway snapshots additive feature values from
-`GetCapabilities`; unknown values are ignored. Post-initialization lifecycle
-and policy behavior does not depend on the configured or advertised driver
-name. Gateway-managed shutdown/start lifecycle and native process-identity
-defaults are enabled only by their corresponding features. Driver-requested
-listeners are structurally validated and remain restricted to sandbox callback
-RPCs.
+At initialization the gateway snapshots the driver's identity, version, and
+default image from `GetCapabilities`. Process-identity omissions are preserved
+across this boundary so every driver can apply its native image or runtime
+defaults. Driver-requested listeners are structurally validated and remain
+restricted to sandbox callback RPCs.
 
 Drivers own runtime-specific platform event interpretation. When an event should
 drive client provisioning UI, the driver attaches the shared

crates/openshell-core/src/driver_utils.rs

@@ -5,7 +5,7 @@
 
 use std::path::{Path, PathBuf};
 
-use crate::proto::compute::v1::{ComputeDriverFeature, DriverSandbox, GetCapabilitiesResponse};
+use crate::proto::compute::v1::{DriverSandbox, GetCapabilitiesResponse};
 
 pub use crate::container_paths::{
     SANDBOX_TOKEN_MOUNT_PATH, SUPERVISOR_CONTAINER_BINARY, SUPERVISOR_CONTAINER_DIR,
@@ -380,13 +380,11 @@ pub fn build_capabilities_response(
     driver_name: &str,
     driver_version: impl Into<String>,
     default_image: impl Into<String>,
-    features: impl IntoIterator<Item = ComputeDriverFeature>,
 ) -> GetCapabilitiesResponse {
     GetCapabilitiesResponse {
         driver_name: driver_name.to_string(),
         driver_version: driver_version.into(),
         default_image: default_image.into(),
-        features: features.into_iter().map(i32::from).collect(),
     }
 }
 
@@ -582,27 +580,6 @@ pub fn validate_linux_elf_binary(path: &Path) -> Result<(), String> {
 mod tests {
     use super::*;
 
-    #[test]
-    fn capabilities_encode_additive_features() {
-        let capabilities = build_capabilities_response(
-            "external",
-            "1.0.0",
-            "sandbox:latest",
-            [
-                ComputeDriverFeature::GatewayManagedLifecycle,
-                ComputeDriverFeature::PreserveUnspecifiedProcessIdentity,
-            ],
-        );
-
-        assert_eq!(
-            capabilities.features,
-            vec![
-                i32::from(ComputeDriverFeature::GatewayManagedLifecycle),
-                i32::from(ComputeDriverFeature::PreserveUnspecifiedProcessIdentity),
-            ]
-        );
-    }
-
     #[test]
     fn upstream_proxy_url_accepts_http_with_port() {
         let addr = parse_upstream_proxy_url("http://proxy.corp.com:8080").unwrap();

crates/openshell-driver-docker/src/lib.rs

@@ -494,10 +494,6 @@ impl DockerComputeDriver {
             "docker",
             &self.config.daemon_version,
             &self.config.default_image,
-            [
-                openshell_core::proto::compute::v1::ComputeDriverFeature::GatewayManagedLifecycle,
-                openshell_core::proto::compute::v1::ComputeDriverFeature::PreserveUnspecifiedProcessIdentity,
-            ],
         )
     }
 

crates/openshell-driver-kubernetes/src/driver.rs

@@ -548,7 +548,6 @@ impl KubernetesComputeDriver {
             "kubernetes",
             openshell_core::VERSION,
             &self.config.default_image,
-            [],
         ))
     }
 

crates/openshell-driver-podman/src/driver.rs

@@ -468,10 +468,6 @@ impl PodmanComputeDriver {
             "podman",
             openshell_core::VERSION,
             &self.config.default_image,
-            [
-                openshell_core::proto::compute::v1::ComputeDriverFeature::GatewayManagedLifecycle,
-                openshell_core::proto::compute::v1::ComputeDriverFeature::PreserveUnspecifiedProcessIdentity,
-            ],
         ))
     }
 

crates/openshell-driver-vm/src/driver.rs

@@ -37,12 +37,12 @@ use openshell_core::progress::{
     format_bytes, mark_progress_active, mark_progress_complete, mark_progress_detail,
 };
 use openshell_core::proto::compute::v1::{
-    ComputeDriverFeature, CreateSandboxRequest, CreateSandboxResponse, DeleteSandboxRequest,
-    DeleteSandboxResponse, DeleteWorkspaceRequest, DeleteWorkspaceResponse,
-    DriverCondition as SandboxCondition, DriverPlatformEvent as PlatformEvent,
-    DriverSandbox as Sandbox, DriverSandboxStatus as SandboxStatus,
-    DriverSandboxTemplate as SandboxTemplate, EnsureWorkspaceRequest, EnsureWorkspaceResponse,
-    GetCapabilitiesRequest, GetCapabilitiesResponse, GetGatewayListenerRequirementsRequest,
+    CreateSandboxRequest, CreateSandboxResponse, DeleteSandboxRequest, DeleteSandboxResponse,
+    DeleteWorkspaceRequest, DeleteWorkspaceResponse, DriverCondition as SandboxCondition,
+    DriverPlatformEvent as PlatformEvent, DriverSandbox as Sandbox,
+    DriverSandboxStatus as SandboxStatus, DriverSandboxTemplate as SandboxTemplate,
+    EnsureWorkspaceRequest, EnsureWorkspaceResponse, GetCapabilitiesRequest,
+    GetCapabilitiesResponse, GetGatewayListenerRequirementsRequest,
     GetGatewayListenerRequirementsResponse, GetSandboxRequest, GetSandboxResponse,
     ListSandboxesRequest, ListSandboxesResponse, StartSandboxRequest, StartSandboxResponse,
     StopSandboxRequest, StopSandboxResponse, ValidateSandboxCreateRequest,
@@ -520,7 +520,6 @@ impl VmDriver {
             driver_name: DRIVER_NAME.to_string(),
             driver_version: openshell_core::VERSION.to_string(),
             default_image: self.config.default_image.clone(),
-            features: vec![ComputeDriverFeature::GatewayManagedLifecycle.into()],
         }
     }