diff --git a/k8s/clusters/benchmarks/README.md b/k8s/clusters/benchmarks/README.md
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+# Benchmark Cluster Infrastructure
+
+This directory contains Kubernetes manifests for the benchmark cluster's logging infrastructure.
+
+## Overview
+
+### Vector Log Collection
+
+Vector is deployed as a distributed logging system to collect logs from Codex benchmark experiments:
+
+**Vector Agent (DaemonSet):**
+- Collects logs from benchmark pods (filtered by label: `app.kubernetes.io/name=codex-benchmarks`)
+- Forwards compressed logs to Vector Aggregator via port 6000
+
+**Vector Aggregator:**
+- Receives logs from all Vector agents
+- Writes consolidated logs to PVC as JSONL files: `/vector-logs/benchmarks-YYYY-MM-DD.jsonl`
+- Used by log-parsing Argo workflow for post-experiment processing
+
+**Persistent Volume:**
+- Stores collected JSONL logs
+- Mounted by Vector Aggregator and log-parsing workflow
+- Allows logs to persist between workflow runs
+
+**S3 Secret:**
+- Credentials for uploading processed logs to S3-compatible storage
+- Used by log-parsing workflow's tar-and-upload step
+
+**RBAC:**
+- Service account and cluster role for Vector to access Kubernetes API
+- Required for reading pod logs cluster-wide
+
+## Installation Order
+
+### 1. Create namespace (if not exists)
+
+```bash
+kubectl create namespace argo
+```
+
+### 2. Apply Vector components
+
+```bash
+kubectl apply -f vector/vector-pvc.yaml -n argo
+kubectl apply -f vector/vector-agent-configmap.yaml -n argo
+kubectl apply -f vector/vector-configmap.yaml -n argo
+kubectl apply -f vector/vector-aggregator-configmap.yaml -n argo
+kubectl apply -f vector/vector-deployment.yaml -n argo
+kubectl apply -f vector/vector-aggregator-deployment.yaml -n argo
+```
+
+### 3. Configure S3 access
+
+```bash
+# Edit s3-secret.yaml with your credentials first
+kubectl apply -f s3-secret.yaml -n argo
+```
+
+### 4. Configure Vector RBAC
+
+```bash
+kubectl apply -f vector/vector-aggregator-rbac.yaml -n argo
+```
+
+## Verification
+
+### Check Vector Agent status
+```bash
+kubectl get daemonset -n argo | grep vector
+kubectl get pods -n argo -l app.kubernetes.io/name=vector
+```
+
+### Check Vector Aggregator status
+```bash
+kubectl get deployment -n argo | grep vector-aggregator
+```
+
+### Check PVC status
+```bash
+kubectl get pvc -n argo vector-logs-pvc
+```
+
+## Troubleshooting
+
+### Vector Agent not collecting logs
+- Verify pod labels: `kubectl get pods -n codex-benchmarks --show-labels`
+- Check agent logs: `kubectl logs -n argo -l app.kubernetes.io/name=vector`
+- Ensure RBAC is applied: `kubectl get clusterrole vector-agent`
+
+### Logs not appearing in PVC
+- Check aggregator connection: `kubectl logs -n argo deployment/vector-aggregator | grep error`
+- Verify PVC is mounted: `kubectl describe pod -n argo <aggregator-pod>`
+
+### S3 upload failures
+- Verify secret exists: `kubectl get secret -n argo s3-codex-benchmarks`
+- Check credentials are correct (not placeholders)
diff --git a/k8s/clusters/benchmarks/s3-secret.yaml b/k8s/clusters/benchmarks/s3-secret.yaml
new file mode 100644
index 0000000..2ba4b38
--- /dev/null
+++ b/k8s/clusters/benchmarks/s3-secret.yaml
@@ -0,0 +1,21 @@
+# S3 credentials secret for uploading benchmark logs
+# Replace the placeholder values with your actual S3 credentials before applying
+#
+# For Digital Ocean Spaces:
+#   AWS_ENDPOINT_URL: https://<region>.digitaloceanspaces.com (e.g., https://fra1.digitaloceanspaces.com)
+#   AWS_ACCESS_KEY_ID: Your Spaces access key
+#   AWS_SECRET_ACCESS_KEY: Your Spaces secret key
+#
+# Apply with:
+#   kubectl apply -f s3-secret.yaml -n argo
+
+apiVersion: v1
+kind: Secret
+metadata:
+  name: s3-codex-benchmarks
+  namespace: argo
+type: Opaque
+stringData:
+  AWS_ENDPOINT_URL: "https://<REGION>.digitaloceanspaces.com"
+  AWS_ACCESS_KEY_ID: "ACCESS_KEY_ID"
+  AWS_SECRET_ACCESS_KEY: "SECRET_ACCESS_KEY"
diff --git a/k8s/clusters/benchmarks/vector/vector-agent-configmap.yaml b/k8s/clusters/benchmarks/vector/vector-agent-configmap.yaml
new file mode 100644
index 0000000..53ac805
--- /dev/null
+++ b/k8s/clusters/benchmarks/vector/vector-agent-configmap.yaml
@@ -0,0 +1,41 @@
+# Vector Agent configuration for DaemonSet
+# Collects logs from pods on each node and forwards to Vector Aggregator
+
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: vector-agent-config
+  namespace: argo
+data:
+  vector.yaml: |
+    data_dir: /vector-data
+
+    sources:
+      benchmark-experiments-source:
+        type: kubernetes_logs
+        extra_label_selector: "app.kubernetes.io/name=codex-benchmarks"
+        node_annotation_fields:
+          node_labels: ""
+        pod_annotation_fields:
+          container_id: ""
+          container_image: ""
+          container_image_id: ""
+          pod_node_name: ""
+          pod_owner: ""
+          pod_uid: ""
+          pod_ip: ""
+          pod_ips: ""
+        glob_minimum_cooldown_ms: 5000
+
+    sinks:
+      vector-aggregator:
+        type: vector
+        inputs: [benchmark-experiments-source]
+        address: vector-aggregator.argo.svc.cluster.local:6000
+        compression: true
+        acknowledgements:
+          enabled: true
+        buffer:
+          type: disk
+          max_size: 301989888  # 312MB per agent
+          when_full: block  # Block new logs if buffer full (prevents drops)
diff --git a/k8s/clusters/benchmarks/vector/vector-aggregator-configmap.yaml b/k8s/clusters/benchmarks/vector/vector-aggregator-configmap.yaml
new file mode 100644
index 0000000..d4235f7
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+++ b/k8s/clusters/benchmarks/vector/vector-aggregator-configmap.yaml
@@ -0,0 +1,32 @@
+# Vector Aggregator configuration
+# Receives logs from Vector Agents and writes to file
+
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: vector-aggregator-config
+  namespace: argo
+data:
+  vector.yaml: |
+    data_dir: /vector-data
+
+    sources:
+      vector-agents:
+        type: vector
+        address: 0.0.0.0:6000
+        acknowledgements:
+          enabled: true
+
+    sinks:
+      file-output:
+        type: file
+        inputs: [vector-agents]
+        path: "/vector-logs/benchmarks-%Y-%m-%d.jsonl"
+        encoding:
+          codec: json
+        acknowledgements:
+          enabled: true
+        buffer:
+          type: disk
+          max_size: 301989888  # 312MB for aggregator
+          when_full: block
diff --git a/k8s/clusters/benchmarks/vector/vector-aggregator-deployment.yaml b/k8s/clusters/benchmarks/vector/vector-aggregator-deployment.yaml
new file mode 100644
index 0000000..6714545
--- /dev/null
+++ b/k8s/clusters/benchmarks/vector/vector-aggregator-deployment.yaml
@@ -0,0 +1,93 @@
+# Vector Aggregator Deployment
+# Receives logs from Vector Agents (DaemonSet) and writes to PVC
+
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: vector-aggregator
+  namespace: argo
+  labels:
+    app.kubernetes.io/name: vector-aggregator
+    app.kubernetes.io/instance: vector
+    app.kubernetes.io/component: Aggregator
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: vector-aggregator
+      app.kubernetes.io/instance: vector
+      app.kubernetes.io/component: Aggregator
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: vector-aggregator
+        app.kubernetes.io/instance: vector
+        app.kubernetes.io/component: Aggregator
+    spec:
+      serviceAccountName: vector
+      # Schedule aggregator on infra node to avoid competing with benchmark workloads
+      affinity:
+        nodeAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            nodeSelectorTerms:
+              - matchExpressions:
+                  - key: workload-type
+                    operator: In
+                    values:
+                      - infra
+      containers:
+        - name: vector
+          image: timberio/vector:0.34.0-distroless-libc
+          args:
+            - --config
+            - /etc/vector/vector.yaml
+          env:
+            - name: VECTOR_LOG
+              value: "info"
+          ports:
+            - containerPort: 6000
+              name: vector
+              protocol: TCP
+          volumeMounts:
+            - name: config
+              mountPath: /etc/vector
+              readOnly: true
+            - name: data
+              mountPath: /vector-data
+            - name: vector-logs
+              mountPath: /vector-logs
+          resources:
+            requests:
+              cpu: 200m
+              memory: 512Mi
+            limits:
+              cpu: 2000m
+              memory: 2Gi
+      volumes:
+        - name: config
+          configMap:
+            name: vector-aggregator-config
+        - name: data
+          emptyDir: {}
+        - name: vector-logs
+          persistentVolumeClaim:
+            claimName: vector-logs-pvc
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: vector-aggregator
+  namespace: argo
+  labels:
+    app.kubernetes.io/name: vector-aggregator
+spec:
+  type: ClusterIP
+  ports:
+    - port: 6000
+      targetPort: 6000
+      protocol: TCP
+      name: vector
+  selector:
+    app.kubernetes.io/name: vector-aggregator
+    app.kubernetes.io/instance: vector
+    app.kubernetes.io/component: Aggregator
diff --git a/k8s/clusters/benchmarks/vector/vector-aggregator-rbac.yaml b/k8s/clusters/benchmarks/vector/vector-aggregator-rbac.yaml
new file mode 100644
index 0000000..9ab165a
--- /dev/null
+++ b/k8s/clusters/benchmarks/vector/vector-aggregator-rbac.yaml
@@ -0,0 +1,27 @@
+# RBAC permissions for log parsing workflow to scale Vector Aggregator
+# Allows the workflow to scale down/up the aggregator to access the RWO PVC
+
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: vector-aggregator-scaler
+  namespace: argo
+rules:
+  - apiGroups: ["apps"]
+    resources: ["deployments"]
+    verbs: ["get", "patch", "update"]
+    resourceNames: ["vector-aggregator"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: codex-workflows-vector-aggregator-scaler
+  namespace: argo
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: vector-aggregator-scaler
+subjects:
+  - kind: ServiceAccount
+    name: codex-benchmarks-workflows
+    namespace: argo
diff --git a/k8s/clusters/benchmarks/vector/vector-configmap.yaml b/k8s/clusters/benchmarks/vector/vector-configmap.yaml
new file mode 100644
index 0000000..157350c
--- /dev/null
+++ b/k8s/clusters/benchmarks/vector/vector-configmap.yaml
@@ -0,0 +1,36 @@
+# Vector configuration for collecting benchmark pod logs
+# This ConfigMap contains the Vector pipeline configuration
+
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: vector-config
+  namespace: argo
+data:
+  vector.yaml: |
+    data_dir: /vector-data
+
+    sources:
+      benchmark-experiments-source:
+        type: kubernetes_logs
+        extra_label_selector: "app.kubernetes.io/name=codex-benchmarks"
+        node_annotation_fields:
+          node_labels: ""
+        pod_annotation_fields:
+          container_id: ""
+          container_image: ""
+          container_image_id: ""
+          pod_node_name: ""
+          pod_owner: ""
+          pod_uid: ""
+          pod_ip: ""
+          pod_ips: ""
+        glob_minimum_cooldown_ms: 5000
+
+    sinks:
+      output:
+        type: file
+        inputs: [benchmark-experiments-source]
+        path: "/vector-logs/benchmarks-%Y-%m-%d.jsonl"
+        encoding:
+          codec: json
diff --git a/k8s/clusters/benchmarks/vector/vector-deployment.yaml b/k8s/clusters/benchmarks/vector/vector-deployment.yaml
new file mode 100644
index 0000000..0cb0104
--- /dev/null
+++ b/k8s/clusters/benchmarks/vector/vector-deployment.yaml
@@ -0,0 +1,112 @@
+# Vector Agent DaemonSet for collecting benchmark logs
+# Runs on each node to collect logs from local pods and forward to Vector Aggregator
+
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: vector
+  namespace: argo
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: vector-agent
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - namespaces
+      - nodes
+      - pods
+    verbs:
+      - list
+      - watch
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: vector-agent
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: vector-agent
+subjects:
+  - kind: ServiceAccount
+    name: vector
+    namespace: argo
+---
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: vector
+  namespace: argo
+  labels:
+    app.kubernetes.io/name: vector
+    app.kubernetes.io/instance: vector
+    app.kubernetes.io/component: Agent
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: vector
+      app.kubernetes.io/instance: vector
+      app.kubernetes.io/component: Agent
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: vector
+        app.kubernetes.io/instance: vector
+        app.kubernetes.io/component: Agent
+    spec:
+      serviceAccountName: vector
+      containers:
+        - name: vector
+          image: timberio/vector:0.34.0-distroless-libc
+          args:
+            - --config
+            - /etc/vector/vector.yaml
+          env:
+            - name: VECTOR_SELF_NODE_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: spec.nodeName
+            - name: VECTOR_SELF_POD_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.name
+            - name: VECTOR_SELF_POD_NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
+            - name: VECTOR_LOG
+              value: "info"
+          volumeMounts:
+            - name: config
+              mountPath: /etc/vector
+              readOnly: true
+            - name: data
+              mountPath: /vector-data
+            - name: var-log
+              mountPath: /var/log
+              readOnly: true
+            - name: var-lib
+              mountPath: /var/lib
+              readOnly: true
+          resources:
+            requests:
+              cpu: 100m
+              memory: 256Mi
+            limits:
+              cpu: 1000m
+              memory: 1Gi
+      volumes:
+        - name: config
+          configMap:
+            name: vector-agent-config
+        - name: data
+          emptyDir: {}
+        - name: var-log
+          hostPath:
+            path: /var/log
+        - name: var-lib
+          hostPath:
+            path: /var/lib
diff --git a/k8s/clusters/benchmarks/vector/vector-pvc.yaml b/k8s/clusters/benchmarks/vector/vector-pvc.yaml
new file mode 100644
index 0000000..2aa4a73
--- /dev/null
+++ b/k8s/clusters/benchmarks/vector/vector-pvc.yaml
@@ -0,0 +1,15 @@
+# Persistent Volume Claim for Vector to collect benchmark logs.
+# This PVC uses block storage which will be mounted by Vector Aggregator to write logs.
+
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: vector-logs-pvc
+  namespace: argo
+spec:
+  accessModes:
+    - ReadWriteOnce
+  storageClassName: do-block-storage
+  resources:
+    requests:
+      storage: 50Gi