Agent Native

k2

This skill helps agents build and manage Cloudflare K2 durable logs for event streaming.

by CloudflareOfficial publisherNot reviewed

Identity proven by a skills index on cloudflare.com

Agents
Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode, claude.ai and API
License
Apache-2.0 (permissive)
Pin
a84b615pinned Oct 9, 2026
Context cost
about 490 tokenswhen the skill loads
GitHub stars
3,012on cloudflare/skills
Scripts
None found

What it does

“Build and troubleshoot Cloudflare K2 or K2 Streams durable logs. Use for stream setup, producing from Workers or HTTP, configuring retention and inputs, and consuming through subscriptions.”
The author's description, from SKILL.md

Generated summary from the skill's own text

This skill helps agents build and manage Cloudflare K2 durable logs for event streaming. It provides guidance on stream creation, producing records from Workers or HTTP endpoints, configuring retention and inputs, and consuming events through subscriptions. The skill retrieves current documentation to ensure accurate setup instructions, API details, and platform limits.

When to use it

  • Setting up a durable event log between producers and consumers
  • Producing events from Cloudflare Workers or HTTP sources
  • Configuring stream retention policies and input sources
  • Building subscription-based event consumption patterns

When not to

  • Processing tasks with complex workflows, use Queues instead
  • Transforming and loading data to R2 Iceberg tables, use basin skill

Install

These commands install from the publisher's repository and need no account.

skills CLI

npx skills add cloudflare/skills --skill k2

Installs from the repository's default branch, which may have changed since the commit we checked.

GitHub CLI 2.90 or later

gh skill install cloudflare/skills k2@a84b615ff9d40e7f99755aea23d65e52d645bd42

Installs the commit we checked (a84b615).

Copy by hand

Download the folder at a84b615 and put it in .claude/skills/k2 for Claude Code and in .agents/skills/k2 for Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode.

Skill folder on GitHub at a84b615

Claude Code plugin

/plugin install cloudflare@claude-plugins-official

The publisher's plugin in Claude's official marketplace. It may hold more than this skill, and we have not pinned it.

Copy for your agent

A prompt for any coding agent. It installs this skill from GitHub at the pinned commit, copies the files as they are, and runs nothing unless you ask.

Prompt

Install the agent skill "k2" by Cloudflare.

Source, pinned to commit a84b615ff9d40e7f99755aea23d65e52d645bd42:
https://github.com/cloudflare/skills/tree/a84b615ff9d40e7f99755aea23d65e52d645bd42/skills/k2

1. Download that folder at exactly this commit. Do not use the default branch.
2. Copy every file unchanged, keeping the folder structure, into .claude/skills/k2/ for Claude Code and .agents/skills/k2/ for Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode. Create the folders if they do not exist.
3. Do not edit the files, and do not run any script in the folder unless I ask you to.
4. When you are done, list the files you copied and where you put them.

Listing and checks: https://www.agentnative.dev/skills/cloudflare/k2

SKILL.md at the pin

---
name: k2
description: Build and troubleshoot Cloudflare K2 or K2 Streams durable logs. Use for stream setup, producing from Workers or HTTP, configuring retention and inputs, and consuming through subscriptions.
---

# Cloudflare K2

K2 is a durable log for decoupling event producers and consumers. Start with the [K2 overview](https://developers.cloudflare.com/k2/index.md), then retrieve the relevant current documentation before giving setup instructions, code, limits, availability, permissions, or API details. The docs are the source of truth over this skill. While [cloudflare-docs PR #33858](https://github.com/cloudflare/cloudflare-docs/pull/33858) remains open, use its proposed pages if the public URLs have not been published.

## Documentation

| Task | Docs | Check for |
|------|------|-----------|
| Create a stream and try K2 | [Get started](https://developers.cloudflare.com/k2/get-started/index.md) | Prerequisites, setup sequence, current API examples |
| Understand streams and subscriptions | [Concepts](https://developers.cloudflare.com/k2/concepts/index.md) | Record model and delivery behavior |
| Configure a stream | [Configuration](https://developers.cloudflare.com/k2/configuration/index.md) | Inputs, authentication, CORS, retention |
| Produce from HTTP or a Worker | [Produce records](https://developers.cloudflare.com/k2/features/produce/index.md) | Request and binding syntax, encoding, errors, retries |
| Consume through subscriptions | [Consume records](https://developers.cloudflare.com/k2/features/consume/index.md) | Leases, acknowledgements, retries, errors |
| Size a stream or consumer | [Limits](https://developers.cloudflare.com/k2/platform/limits/index.md) | Current quotas and size limits |

Retrieve the matching pages above for each task and use their current examples. For capacity or cost questions, check current limits and any published pricing before quoting values. State when a requested pricing or availability detail is not yet published.

For SQL transformation and delivery to R2 Iceberg tables, use the `basin` skill. For task processing, consult [Queues](https://developers.cloudflare.com/queues/index.md).

From cloudflare/skills at a84b615, shown as plain text under its license: Apache-2.0 (permissive). The license text is in LICENSE.

View SKILL.md on GitHub at a84b615

Files

1 file, 2.2 KB in total. Each file has a sha256 in the pin's manifest; the first 12 characters are shown.

Skill folder on GitHub at a84b615
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