Flux159/mcp-server-kubernetes is an MCP server that lets AI tools connect to and manage Kubernetes clusters. Developers and operators use it with kubectl, kubeconfig, and optionally Helm to perform Kubernetes management tasks through supported agent clients. Its catalogue instructions explain how to configure the server for those clients.
Borrowing it
Nothing to install: this file belongs to Flux159/mcp-server-kubernetes. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Flux159/mcp-server-kubernetes/main/CLAUDE.mdgit clone --depth 1 https://github.com/Flux159/mcp-server-kubernetesWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/flux159/mcp-server-kubernetes/claude-md)<a href="https://agentmods.dev/instructions/flux159/mcp-server-kubernetes/claude-md"><img src="https://agentmods.dev/badge/instructions/flux159/mcp-server-kubernetes/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/flux159/mcp-server-kubernetes/claude-md"><img src="https://agentmods.dev/badge/instructions/flux159/mcp-server-kubernetes/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01532 | $0.01532 |
| Opus 5.5 | $0.00613 | $0.00613 |
| Sonnet 5.5 | $0.00306 | $0.00306 |
| Haiku 4.5 | $0.00153 | $0.00153 |
Grade C, and why
mcp-server-kubernetes CLAUDE.md scanned grade C with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Reaches for credential fileshighPrivilege escalation
SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.
- Server loads kubeconfig from multiple sources: KUBECONFIG_YAML env var, KUBECONFIG path, or ~/.kube/config How it starts
The opening of the file, as written. The whole thing — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Development Commands
Build and Development
bun run build- Compile TypeScript to dist/ and make executablesbun run dev- Start TypeScript compiler in watch mode for developmentbun run start- Run the compiled server from dist/index.jsbun run test- Run all tests using Vitest
Testing and Quality
bun run test- Execute the complete test suite with custom sequencer (kubectl tests run last)- Tests have 120s timeout and 60s hook timeout due to Kubernetes operations
- Use
npx @modelcontextprotocol/inspector node dist/index.jsfor local testing with Inspector - Always run single test based on with area you are working on. running all tests will take a long time.
Local Development Testing
bun run chat- Test locally with mcp-chat CLI client- For Claude Desktop testing, point to local
dist/index.jsbuild
Architecture Overview
This is an MCP (Model Context Protocol) server that provides Kubernetes cluster management capabilities. The server connects to Kubernetes clusters via kubectl and offers both read-only and destructive operations.
Core Components
KubernetesManager (src/utils/kubernetes-manager.ts): Central class managing Kubernetes API connections, resource tracking, port forwards, and watches. Handles kubeconfig loading from multiple sources in priority order.
Tool Structure: Each Kubernetes operation is implemented as a separate tool in src/tools/, with corresponding Zod schemas for validation. Tools are divided into:
- kubectl operations (get, describe, apply, delete, create, etc.)
- Helm operations (install, upgrade, uninstall charts)
- Specialized operations (port forwarding, scaling, rollouts)
Resource Handlers (src/resources/handlers.ts): Manage MCP resource endpoints for dynamic data retrieval.
Configuration System (src/config/): Contains schemas and templates for deployments, namespaces, containers, and cleanup operations.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago Changed · +1 lines · +84 tokens per session d00729e85703
- 2mo ago First seen · 120 lines · 1,448 tokens per session scan C b37a6e6a4885
mcp-server-kubernetes CLAUDE.md is an instructions file published in the GitHub repository Flux159/mcp-server-kubernetes (1,610 stars, last pushed 11d ago), licensed MIT. It adds 1,532 tokens to every session, about $0.0061 per session on Opus 5.5. A static security scan graded it C with 1 finding (reaches for credential files). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
mcp-server-kubernetes CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| mcp-server-kubernetes CLAUDE.mdFlux159/mcp-server-kubernetes | Instructions file | 1.6k | 11d ago | MIT | C | 1,532 | Claude Code |
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