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Get Started Free →KubeSphere central controller Skill. Routes to specific Skills based on user requests: multi-cluster management (kubesphere-cluster-management), multi-tenant management (kubesphere-multi-tenant-management), extension management (kubesphere-extension-management). Also provides core architecture, API routing, and API utilities.
.claude/skills/kubesphere-kubesphere-core/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-01 | ✗→✓ | ▲ Improved | -26% | 0% |
| case-02 | ✗→✓ | ▲ Improved | 78% | 0% |
| case-03 | ✗→✓ | ▲ Improved | 29% | 0% |
| case-11 | ✗→✓ | ▲ Improved | 57% | 0% |
| case-15 | ✗→✓ | ▲ Improved | -2% | 0% |
KubeSphere is a distributed operating system for cloud-native application management built on Kubernetes. Version 4.x adopts a microkernel + extension architecture (codename LuBan) where the core provides essential functions and independent functional modules are delivered as extensions.
┌─────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ KubeSphere Console │
│ (React-based Web UI + Extension Framework) │
└────────────────────────────────────────────────────────────┬────────────────────────────────────────────────────┘
│
┌────────────────────────────────────────────────────────────▼────────────────────────────────────────────────────┐
│ KubeSphere Core (LuBan) │
│ ┌───────────────────┐ ┌───────────────────┐ ┌───────────────────┐ ┌───────────────────┐ ┌───────────────────┐ │
│ │ Multi-Cluster │ │ Multi-Tenant │ │ K8s Resource │ │ Extension │ │ Application │ │
│ │ Management │ │ Management │ │ Management │ │ Management │ │ Management │ │
│ └───────────────────┘ └───────────────────┘ └───────────────────┘ └───────────────────┘ └───────────────────┘ │
└────────────────────────────────────────────────────────────┬────────────────────────────────────────────────────┘
│
┌────────────────────────────────────────────────────────────▼────────────────────────────────────────────────────┐
│ Underlying Kubernetes Clusters │
└─────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘| Component | Description | |-----------|-------------| | ks-apiserver | API aggregation layer. Acts as the central API entry point for KubeSphere, aggregating APIs from core services and extensions. Handles authentication, authorization, and multi-cluster API routing. | | ks-controller-manager | Resource controllers. Manages the lifecycle of KubeSphere custom resources (workspaces, projects, users, etc.). Reconciles desired state and handles event-driven operations. | | ks-console | Web UI. React-based console providing visual management interface for all KubeSphere capabilities. Supports extension framework for custom UI components. |
KubeSphere provides two main API path prefixes with different routing behaviors:
| Path Prefix | Routed To | Use Case | |-------------|-----------|----------| | /apis/ | kube-apiserver on target cluster | Direct Kubernetes CRUD operations | | /kapis/ | KubeSphere API server | KubeSphere-specific APIs, workspace-scoped operations |
Use the /clusters/{cluster-name}/ prefix to forward requests to specific member clusters:
bash# Access member-1 cluster /clusters/member-1/kapis/tenant.kubesphere.io/v1beta1/workspaces/demo/namespaces
Use the ks_api.py script to make API calls. The script handles authentication automatically.
Prerequisites:
bashpip install requests export KUBESPHERE_HOST="http://<kubesphere-host>" python scripts/ks_api.py --login --username admin --password <password>
Usage:
bash# Get token info python scripts/ks_api.py # List resources (GET) python scripts/ks_api.py GET /kapis/tenant.kubesphere.io/v1beta1/workspacetemplates # Query specific cluster python scripts/ks_api.py GET /clusters/member-1/kapis/tenant.kubesphere.io/v1beta1/namespaces # Clear cached token python scripts/ks_api.py --clear-cache
kubesphere-core routes to specific Skills based on user requests.
| Skill | Capabilities | Restrictions | |-------|--------------|--------------| | kubesphere-core | Architecture, API routing, API utilities | No management operations | | kubesphere-cluster-management | Multi-cluster management | Cluster operations | | kubesphere-multi-tenant-management | Create user/workspace/project, assign roles | No delete, No custom roles | | kubesphere-extension-management | Extension install/upgrade/uninstall | Extension-related only |
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-08 | pass→pass | 7,003 | 1,877 | -73% | 1 | 1 | 0% | 1,037 | 1,369 | +32% | 0 | 0 | — |
case-01 | fail→pass | 18,048 | 3,766 | -79% | 1 | 1 | 0% | 2,278 | 1,678 | -26% | 0 | 0 | — |
case-07 | pass→pass | 6,118 | 2,751 | -55% | 1 | 1 | 0% | 931 | 1,395 | +50% | 0 | 0 | — |
case-02 | fail→pass | 10,851 | 2,719 | -75% | 1 | 1 | 0% | 903 | 1,603 | +78% | 0 | 0 | — |
case-03 | fail→pass | 5,929 | 1,456 | -75% | 1 | 1 | 0% | 1,012 | 1,306 | +29% | 0 | 0 | — |
case-04 | pass→pass | 8,335 | 4,868 | -42% | 1 | 1 | 0% | 1,470 | 1,386 | -6% | 0 | 0 | — |
case-05 | pass→pass | 7,569 | 3,293 | -56% | 1 | 1 | 0% | 1,415 | 1,623 | +15% | 0 | 0 | — |
case-06 | pass→pass | 10,925 | 4,933 | -55% | 1 | 1 | 0% | 1,812 | 1,954 | +8% | 0 | 0 | — |
case-09 | pass→pass | 4,417 | 1,482 | -66% | 1 | 1 | 0% | 772 | 1,251 | +62% | 0 | 0 | — |
case-10 | pass→pass | 6,252 | 4,727 | -24% | 1 | 1 | 0% | 1,185 | 1,892 | +60% | 0 | 0 | — |
case-11 | fail→pass | 5,064 | 1,892 | -63% | 1 | 1 | 0% | 869 | 1,368 | +57% | 0 | 0 | — |
case-12 | pass→pass | 3,945 | 1,653 | -58% | 1 | 1 | 0% | 593 | 1,309 | +121% | 0 | 0 | — |
case-13 | pass→pass | 5,069 | 1,667 | -67% | 1 | 1 | 0% | 741 | 1,317 | +78% | 0 | 0 | — |
case-14 | pass→pass | 24,801 | 14,586 | -41% | 1 | 1 | 0% | 572 | 1,291 | +126% | 0 | 0 | — |
case-15 | fail→pass | 12,358 | 5,265 | -57% | 1 | 1 | 0% | 2,001 | 1,969 | -2% | 0 | 0 | — |
case-16 | fail→pass | 5,431 | 4,039 | -26% | 1 | 1 | 0% | 751 | 1,707 | +127% | 0 | 0 | — |
case-17 | fail→pass | 21,921 | 5,642 | -74% | 1 | 1 | 0% | 2,142 | 1,852 | -14% | 0 | 0 | — |
case-18 | pass→pass | 2,905 | 1,706 | -41% | 1 | 1 | 0% | 400 | 1,332 | +233% | 0 | 0 | — |
case-19 | fail→pass | 10,744 | 2,395 | -78% | 1 | 1 | 0% | 2,054 | 1,515 | -26% | 0 | 0 | — |
case-20 | fail→pass | 4,636 | 1,781 | -62% | 1 | 1 | 0% | 792 | 1,312 | +66% | 0 | 0 | — |
case-21 | fail→pass | 6,887 | 2,430 | -65% | 1 | 1 | 0% | 1,046 | 1,451 | +39% | 0 | 0 | — |
case-22 | fail→pass | 7,181 | 2,356 | -67% | 1 | 1 | 0% | 1,180 | 1,477 | +25% | 0 | 0 | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 22 cases were attempted. The headline lift of +50 percentage points is the difference between those two pass rates over the 22 comparable cases.
Without the skill loaded, the model failed this case. With it loaded, the same prompt on the same model passed. This is one improved case from the latest verified run; every case, including any that regressed, is in the table above.
Other measured skills in the registry, with their headline benchmark lift.