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cloudflare-kv

dave1010
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About

This skill enables developers to persist tool data in Cloudflare KV using the shared `TOOLS_KV` namespace. It provides conventions for key naming with `<tool-name>:<key>` structure and recommends storing small JSON blobs or strings. Use this skill when you need to implement atomic operations like get/put/delete while handling null cases and maintaining data isolation between tools.

Documentation

Cloudflare KV basics

  • Cloudflare deploys a shared KV namespace bound as TOOLS_KV for all tools. Use the binding directly; do not create new namespaces per tool.
  • Structure keys as <tool-name>:<key> so data stays isolated between tools.
  • Store small JSON blobs or strings. For structured data, serialize to JSON and document the schema in the tool README.

Access patterns

  • Prefer atomic operations like TOOLS_KV.get, put, and delete. For counters, use TOOLS_KV.get + put with retries or Workers KV atomic counters when available.
  • Always handle the null case on get to avoid undefined data paths for first-time users.
  • Cache reads in memory during a single request when multiple lookups are required.

Cloudflare Functions

  • Name or prefix Functions after the tool, e.g. counter_increment or counter/functions/increment so routes stay organized.
  • In Functions, read and write KV via the env.TOOLS_KV binding provided in the handler signature.
  • Return descriptive error messages and HTTP status codes for KV failures to simplify debugging.

Example

The counter tool stores its count in TOOLS_KV under the key counter:value. Reuse that pattern whenever you need shared state across sessions.

Quick Install

/plugin add https://github.com/dave1010/tools/tree/main/cloudflare-kv

Copy and paste this command in Claude Code to install this skill

GitHub 仓库

dave1010/tools
Path: .skills/cloudflare-kv

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