ambient-code · jeremyeder · Feb 10, 2026
diff --git a/components/backend/handlers/projects.go b/components/backend/handlers/projects.go
@@ -2,6 +2,7 @@ package handlers
 
 import (
 	"context"
+	"encoding/json"
 	"fmt"
 	"log"
 	"net/http"
@@ -137,9 +138,20 @@ func GetClusterInfo(c *gin.Context) {
 	isOpenShift := isOpenShiftCluster()
 	vertexEnabled := os.Getenv("CLAUDE_CODE_USE_VERTEX") == "1"
 
+	var models []map[string]interface{}
+	if raw := os.Getenv("MODELS_JSON"); raw != "" {
+		if err := json.Unmarshal([]byte(raw), &models); err != nil {
+			log.Printf("Warning: failed to parse MODELS_JSON: %v", err)
+		}
+	}
+	if models == nil {
+		models = []map[string]interface{}{}
+	}
+
 	c.JSON(http.StatusOK, gin.H{
 		"isOpenShift":   isOpenShift,
 		"vertexEnabled": vertexEnabled,
+		"models":        models,
 	})
 }
 

diff --git a/components/frontend/src/components/create-session-dialog.tsx b/components/frontend/src/components/create-session-dialog.tsx
@@ -35,9 +35,10 @@ import {
 import type { CreateAgenticSessionRequest } from "@/types/agentic-session";
 import { useCreateSession } from "@/services/queries/use-sessions";
 import { useIntegrationsStatus } from "@/services/queries/use-integrations";
+import { useClusterInfo } from "@/hooks/use-cluster-info";
 import { errorToast } from "@/hooks/use-toast";
 
-const models = [
+const fallbackModels = [
   { value: "claude-sonnet-4-5", label: "Claude Sonnet 4.5" },
   { value: "claude-opus-4-6", label: "Claude Opus 4.6" },
   { value: "claude-opus-4-5", label: "Claude Opus 4.5" },
@@ -69,6 +70,13 @@ export function CreateSessionDialog({
   const [open, setOpen] = useState(false);
   const router = useRouter();
   const createSessionMutation = useCreateSession();
+  const { models: clusterModels } = useClusterInfo();
+
+  const models = clusterModels.length > 0
+    ? clusterModels.map((m) => ({ value: m.name, label: m.displayName }))
+    : fallbackModels;
+
+  const defaultModel = clusterModels.find((m) => m.default)?.name ?? "claude-sonnet-4-5";
 
   const { data: integrationsStatus } = useIntegrationsStatus();
 
@@ -81,7 +89,7 @@ export function CreateSessionDialog({
     resolver: zodResolver(formSchema),
     defaultValues: {
       displayName: "",
-      model: "claude-sonnet-4-5",
+      model: defaultModel,
       temperature: 0.7,
       maxTokens: 4000,
       timeout: 300,

diff --git a/components/frontend/src/hooks/use-cluster-info.ts b/components/frontend/src/hooks/use-cluster-info.ts
@@ -4,26 +4,29 @@
  */
 
 import { useClusterInfo as useClusterInfoQuery } from '@/services/queries/use-cluster';
+import type { ModelInfo } from '@/services/api/cluster';
 
 export type ClusterInfo = {
   isOpenShift: boolean;
   vertexEnabled: boolean;
+  models: ModelInfo[];
   isLoading: boolean;
   isError: boolean;
 };
 
 /**
- * Detects whether the cluster is OpenShift or vanilla Kubernetes
- * and whether Vertex AI is enabled
- * Calls the /api/cluster-info endpoint which checks for project.openshift.io API group
- * and CLAUDE_CODE_USE_VERTEX environment variable
+ * Detects whether the cluster is OpenShift or vanilla Kubernetes,
+ * whether Vertex AI is enabled, and available models
+ * Calls the /api/cluster-info endpoint which checks for project.openshift.io API group,
+ * CLAUDE_CODE_USE_VERTEX environment variable, and MODELS_JSON ConfigMap
  */
 export function useClusterInfo(): ClusterInfo {
   const { data, isLoading, isError } = useClusterInfoQuery();
 
   return {
     isOpenShift: data?.isOpenShift ?? false,
     vertexEnabled: data?.vertexEnabled ?? false,
+    models: data?.models ?? [],
     isLoading,
     isError,
   };

diff --git a/components/frontend/src/services/api/cluster.ts b/components/frontend/src/services/api/cluster.ts
@@ -5,9 +5,17 @@
 
 import { apiClient } from './client';
 
+export type ModelInfo = {
+  name: string;
+  displayName: string;
+  vertexId?: string;
+  default?: boolean;
+};
+
 export type ClusterInfo = {
   isOpenShift: boolean;
   vertexEnabled: boolean;
+  models: ModelInfo[];
 };
 
 /**

diff --git a/components/manifests/base/backend-deployment.yaml b/components/manifests/base/backend-deployment.yaml
@@ -131,6 +131,12 @@ spec:
             configMapKeyRef:
               name: operator-config
               key: GOOGLE_APPLICATION_CREDENTIALS
+        - name: MODELS_JSON
+          valueFrom:
+            configMapKeyRef:
+              name: operator-config
+              key: MODELS_JSON
+              optional: true
         resources:
           requests:
             cpu: 100m

diff --git a/components/manifests/base/operator-deployment.yaml b/components/manifests/base/operator-deployment.yaml
@@ -71,6 +71,12 @@ spec:
             configMapKeyRef:
               name: operator-config
               key: GOOGLE_APPLICATION_CREDENTIALS
+        - name: MODELS_JSON
+          valueFrom:
+            configMapKeyRef:
+              name: operator-config
+              key: MODELS_JSON
+              optional: true
         # Platform-wide Langfuse observability configuration
         # All LANGFUSE_* config stored in ambient-admin-langfuse-secret (platform-admin managed)
         - name: LANGFUSE_ENABLED

diff --git a/components/manifests/minikube/operator-config.yaml b/components/manifests/minikube/operator-config.yaml
@@ -26,4 +26,6 @@ data:
   CLOUD_ML_REGION: "global"
   ANTHROPIC_VERTEX_PROJECT_ID: ""
   GOOGLE_APPLICATION_CREDENTIALS: "/app/vertex/ambient-code-key.json"
+  # Available models for the platform (consumed by backend, operator, runner)
+  MODELS_JSON: '[{"name":"claude-sonnet-4-5","displayName":"Claude Sonnet 4.5","vertexId":"claude-sonnet-4-5@20250929","default":true},{"name":"claude-opus-4-6","displayName":"Claude Opus 4.6","vertexId":"claude-opus-4-6@20260115"},{"name":"claude-opus-4-5","displayName":"Claude Opus 4.5","vertexId":"claude-opus-4-5@20251101"},{"name":"claude-opus-4-1","displayName":"Claude Opus 4.1","vertexId":"claude-opus-4-1@20250805"},{"name":"claude-haiku-4-5","displayName":"Claude Haiku 4.5","vertexId":"claude-haiku-4-5@20251001"}]'
 
diff --git a/components/manifests/overlays/e2e/operator-config.yaml b/components/manifests/overlays/e2e/operator-config.yaml
@@ -13,3 +13,5 @@ data:
   CLOUD_ML_REGION: ""
   ANTHROPIC_VERTEX_PROJECT_ID: ""
   GOOGLE_APPLICATION_CREDENTIALS: ""
+  # Available models for the platform (consumed by backend, operator, runner)
+  MODELS_JSON: '[{"name":"claude-sonnet-4-5","displayName":"Claude Sonnet 4.5","vertexId":"claude-sonnet-4-5@20250929","default":true},{"name":"claude-opus-4-6","displayName":"Claude Opus 4.6","vertexId":"claude-opus-4-6@20260115"},{"name":"claude-opus-4-5","displayName":"Claude Opus 4.5","vertexId":"claude-opus-4-5@20251101"},{"name":"claude-opus-4-1","displayName":"Claude Opus 4.1","vertexId":"claude-opus-4-1@20250805"},{"name":"claude-haiku-4-5","displayName":"Claude Haiku 4.5","vertexId":"claude-haiku-4-5@20251001"}]'
diff --git a/components/manifests/overlays/kind/operator-config.yaml b/components/manifests/overlays/kind/operator-config.yaml
@@ -13,3 +13,5 @@ data:
   CLOUD_ML_REGION: ""
   ANTHROPIC_VERTEX_PROJECT_ID: ""
   GOOGLE_APPLICATION_CREDENTIALS: ""
+  # Available models for the platform (consumed by backend, operator, runner)
+  MODELS_JSON: '[{"name":"claude-sonnet-4-5","displayName":"Claude Sonnet 4.5","vertexId":"claude-sonnet-4-5@20250929","default":true},{"name":"claude-opus-4-6","displayName":"Claude Opus 4.6","vertexId":"claude-opus-4-6@20260115"},{"name":"claude-opus-4-5","displayName":"Claude Opus 4.5","vertexId":"claude-opus-4-5@20251101"},{"name":"claude-opus-4-1","displayName":"Claude Opus 4.1","vertexId":"claude-opus-4-1@20250805"},{"name":"claude-haiku-4-5","displayName":"Claude Haiku 4.5","vertexId":"claude-haiku-4-5@20251001"}]'
diff --git a/components/manifests/overlays/local-dev/operator-config-crc.yaml b/components/manifests/overlays/local-dev/operator-config-crc.yaml
@@ -11,3 +11,5 @@ data:
   CLOUD_ML_REGION: ""
   ANTHROPIC_VERTEX_PROJECT_ID: ""
   GOOGLE_APPLICATION_CREDENTIALS: ""
+  # Available models for the platform (consumed by backend, operator, runner)
+  MODELS_JSON: '[{"name":"claude-sonnet-4-5","displayName":"Claude Sonnet 4.5","vertexId":"claude-sonnet-4-5@20250929","default":true},{"name":"claude-opus-4-6","displayName":"Claude Opus 4.6","vertexId":"claude-opus-4-6@20260115"},{"name":"claude-opus-4-5","displayName":"Claude Opus 4.5","vertexId":"claude-opus-4-5@20251101"},{"name":"claude-opus-4-1","displayName":"Claude Opus 4.1","vertexId":"claude-opus-4-1@20250805"},{"name":"claude-haiku-4-5","displayName":"Claude Haiku 4.5","vertexId":"claude-haiku-4-5@20251001"}]'
diff --git a/components/manifests/overlays/production/operator-config-openshift.yaml b/components/manifests/overlays/production/operator-config-openshift.yaml
@@ -11,3 +11,5 @@ data:
   CLOUD_ML_REGION: "global"
   ANTHROPIC_VERTEX_PROJECT_ID: "ambient-code-platform"
   GOOGLE_APPLICATION_CREDENTIALS: "/app/vertex/ambient-code-key.json"
+  # Available models for the platform (consumed by backend, operator, runner)
+  MODELS_JSON: '[{"name":"claude-sonnet-4-5","displayName":"Claude Sonnet 4.5","vertexId":"claude-sonnet-4-5@20250929","default":true},{"name":"claude-opus-4-6","displayName":"Claude Opus 4.6","vertexId":"claude-opus-4-6@20260115"},{"name":"claude-opus-4-5","displayName":"Claude Opus 4.5","vertexId":"claude-opus-4-5@20251101"},{"name":"claude-opus-4-1","displayName":"Claude Opus 4.1","vertexId":"claude-opus-4-1@20250805"},{"name":"claude-haiku-4-5","displayName":"Claude Haiku 4.5","vertexId":"claude-haiku-4-5@20251001"}]'
diff --git a/components/operator/internal/handlers/sessions.go b/components/operator/internal/handlers/sessions.go
@@ -1001,6 +1001,11 @@ func handleAgenticSessionEvent(obj *unstructured.Unstructured) error {
 						base = append(base, corev1.EnvVar{Name: "CLAUDE_CODE_USE_VERTEX", Value: "0"})
 					}
 
+					// Pass dynamic model configuration to runner
+					if modelsJSON := os.Getenv("MODELS_JSON"); modelsJSON != "" {
+						base = append(base, corev1.EnvVar{Name: "MODELS_JSON", Value: modelsJSON})
+					}
+
 					// Add PARENT_SESSION_ID if this is a continuation
 					if parentSessionID != "" {
 						base = append(base, corev1.EnvVar{Name: "PARENT_SESSION_ID", Value: parentSessionID})

diff --git a/components/runners/claude-code-runner/auth.py b/components/runners/claude-code-runner/auth.py
@@ -45,14 +45,31 @@ def sanitize_user_context(user_id: str, user_name: str) -> tuple[str, str]:
 # ---------------------------------------------------------------------------
 
 # Anthropic API → Vertex AI model name mapping
-VERTEX_MODEL_MAP: dict[str, str] = {
+# Built from MODELS_JSON env var (set via operator-config ConfigMap) if available,
+# otherwise falls back to hardcoded defaults.
+_HARDCODED_VERTEX_MAP: dict[str, str] = {
     "claude-opus-4-5": "claude-opus-4-5@20251101",
     "claude-opus-4-1": "claude-opus-4-1@20250805",
     "claude-sonnet-4-5": "claude-sonnet-4-5@20250929",
     "claude-haiku-4-5": "claude-haiku-4-5@20251001",
 }
 
 
+def _build_vertex_model_map() -> dict[str, str]:
+    raw = os.environ.get("MODELS_JSON", "")
+    if not raw:
+        return dict(_HARDCODED_VERTEX_MAP)
+    try:
+        models = _json.loads(raw)
+        return {m["name"]: m["vertexId"] for m in models if m.get("vertexId")}
+    except Exception:
+        logger.warning("Failed to parse MODELS_JSON, using hardcoded map")
+        return dict(_HARDCODED_VERTEX_MAP)
+
+
+VERTEX_MODEL_MAP: dict[str, str] = _build_vertex_model_map()
+
+
 def map_to_vertex_model(model: str) -> str:
     """Map Anthropic API model names to Vertex AI model names."""
     return VERTEX_MODEL_MAP.get(model, model)