kube-mcp: Instructions file for Claude Code

CLAUDE.md

kube-mcp CLAUDE.md is an instructions file for Claude Code from Abinesh0206/kube-mcp. It costs 828 tokens per session, scanned C, original, MIT.

Development instructions for an MCP server that manages Kubernetes clusters through kubectl, a command-line tool for Kubernetes. They cover building, running, testing, and local inspection.

In plain words
What is it for?
Use them to build or run the server, execute focused or complete tests, inspect it with the MCP Inspector, and test it locally with the provided chat client.
Why use it?
They give contributors the commands and testing guidance needed to develop the server without guessing how its TypeScript project or Kubernetes operations are organized.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is Abinesh0206/kube-mcp's own configuration. It tells Claude Code how to work on kube-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything kube-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Abinesh0206/kube-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Abinesh0206/kube-mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/Abinesh0206/kube-mcp

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Your own site
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/abinesh0206/kube-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/abinesh0206/kube-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 828 This file is loaded in full into every session.
When invoked 828 The same file — it is already loaded in full.
Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00828 $0.00828
Opus 5 $0.00414 $0.00414
Sonnet 5 $0.00166 $0.00166
Haiku 4.5 $0.00083 $0.00083

Measured 9d ago against content hash 5ed32f344ceb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade C, and why

kube-mcp 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 9d 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
Origin

Copies of this mod

1 near-identical copy found in the catalogue:

CLAUDE.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 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 executables
  • bun run dev - Start TypeScript compiler in watch mode for development
  • bun run start - Run the compiled server from dist/index.js
  • bun 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.js for 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.js build

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.

Read the full file on GitHub · 91 lines

Changes

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.

  1. 9d ago First seen · 91 lines · 828 tokens per session scan C 5ed32f344ceb

Subscribe to this mod's changes

kube-mcp CLAUDE.md is an instructions file published in the GitHub repository Abinesh0206/kube-mcp (0 stars, last pushed 11mo ago), licensed MIT. It adds 828 tokens to every session, about $0.0041 per session on Opus 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 2026-08-31.

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