Official agent skill

K2

Build and troubleshoot Cloudflare K2 or K2 Streams durable logs.

OfficialApache-2.0Auto-check passed

Install K2

skills CLI

$ npx skills add cloudflare/skills --skill k2 -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install cloudflare/skills k2 --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/cloudflare/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/k2 .claude/skills/k2 && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "k2" agent skill from https://github.com/cloudflare/skills/tree/main/skills/k2 into .claude/skills/k2/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "k2", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/cloudflare/skills/tree/main/skills/k2

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add cloudflare/skills --skill k2 -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install cloudflare/skills k2 --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/cloudflare/skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/k2 .agents/skills/k2 && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "k2" agent skill from https://github.com/cloudflare/skills/tree/main/skills/k2 into .agents/skills/k2/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "k2", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add cloudflare/skills --skill k2 -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install cloudflare/skills k2 --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/cloudflare/skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/k2 .cursor/skills/k2 && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "k2" agent skill from https://github.com/cloudflare/skills/tree/main/skills/k2 into .cursor/skills/k2/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "k2", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/cloudflare/skills.git --path skills/k2

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add cloudflare/skills --skill k2 -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install cloudflare/skills k2 --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/cloudflare/skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/k2 .gemini/skills/k2 && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "k2" agent skill from https://github.com/cloudflare/skills/tree/main/skills/k2 into .gemini/skills/k2/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "k2", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install cloudflare/skills k2

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add cloudflare/skills --skill k2 -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/cloudflare/skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/k2 .github/skills/k2 && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "k2" agent skill from https://github.com/cloudflare/skills/tree/main/skills/k2 into .github/skills/k2/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "k2", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add cloudflare/skills --skill k2 -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install cloudflare/skills k2 --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/cloudflare/skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/k2 .opencode/skills/k2 && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "k2" agent skill from https://github.com/cloudflare/skills/tree/main/skills/k2 into .opencode/skills/k2/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "k2", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: k2
GitHub stars: 3k
Used in: 1 other repo
Token cost: ~544 tokens
SKILL.md length: 193 words
Files: 1
Skills in repo: 16
Repo updated: Oct 1, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Build and troubleshoot Cloudflare K2 or K2 Streams durable logs.

Producing from Workers
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
Configuring retention and inputs
Consuming through subscriptions

What it does

K2 is an agent skill from cloudflare/skills, published by the product's own GitHub organization. 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.

Its SKILL.md is about 540 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It works with Cloudflare. The repository describes itself as: Skills for teaching agents how to build on Cloudflare. The licence is Apache-2.0.

When your agent uses it

Producing from Workers
Configuring retention and inputs
Consuming through subscriptions

Example prompts

“/k2”

What it can do on your machine

Read from SKILL.md and the folder at commit 41e0d19. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
- developers.cloudflare.com
- github.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

K2 loads about 544 tokens when it runs. Until then it costs about 48 tokens; SKILL.md has 193 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~48
When it runs · the whole SKILL.md, loaded when a task matches: ~544

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from cloudflare/skills at commit 41e0d19, republished under its Apache-2.0 licence (© cloudflare). 193 words, ~544 tokens.

Download SKILL.mdSave it as .claude/skills/k2/SKILL.md (or your agent's skills folder).

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, 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 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	Prerequisites, setup sequence, current API examples
Understand streams and subscriptions	Concepts	Record model and delivery behavior
Configure a stream	Configuration	Inputs, authentication, CORS, retention
Produce from HTTP or a Worker	Produce records	Request and binding syntax, encoding, errors, retries
Consume through subscriptions	Consume records	Leases, acknowledgements, retries, errors
Size a stream or consumer	Limits	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.

Files

Just SKILL.md in skills/k2 of cloudflare/skills.

Open the folder on GitHubat commit 41e0d19

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in cloudflare/skills, which our catalogue first saw on October 7, 2026.

fcakyon/claude-codex-settingsplugins/cloudflare-skills/skills/k2

Compare with similar skills

K2 next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

K2 compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
K2 this skillcloudflare/skills	3k	1 repos	~544	Automated safety check: Pass	Apache-2.0	6 days ago
Cloudflare Browser Renderingcloudflare/moltworker	9.9k	—	~742	Automated safety check: Pass	Apache-2.0	5 mo ago
Star Office UI Setupringhyacinth/Star-Office-UI	7.5k	—	~1.3k	Automated safety check: Pass	MIT	7 mo ago
Cloudflarehodgef/apiker	127	7 repos	~2.2k	Automated safety check: Pass	MIT	1 mo ago
Webhome Extension Builderwebhtv/webhtv	1.7k	—	~2.8k	Automated safety check: Pass	GPL-3.0	today
Golivemikehasa/golive-skill	1.2k	—	~13k	Automated safety check: Notes	MIT	3 days ago

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Questions about K2

What does K2 do?

Build and troubleshoot Cloudflare K2 or K2 Streams durable logs. K2 is an agent skill from cloudflare/skills, published by the product's own GitHub organization. Build and troubleshoot Cloudflare K2 or K2 Streams durable logs.

When should I use K2?

K2 fits situations like: producing from Workers; configuring retention and inputs; consuming through subscriptions.

How do I install K2 in Claude Code?

Run `npx skills add cloudflare/skills --skill k2 -a claude-code`. Or copy the skill folder (skills/k2 in cloudflare/skills) into .claude/skills/k2 in your project. Claude Code loads it when a task matches its description.

How do I install K2 in Codex?

Run `npx skills add cloudflare/skills --skill k2 -a codex`. Or copy the skill folder (skills/k2 in cloudflare/skills) into .agents/skills/k2 in your project. Codex loads it when a task matches its description.

Can I use K2 in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add cloudflare/skills --skill k2 -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/k2, .gemini/skills/k2, .github/skills/k2 and .opencode/skills/k2 in your project.

What does K2 need to run?

SKILL.md names no scripts, command-line tools or credentials: K2 is instructions for the agent only.

Does K2 access the network?

SKILL.md names 2 domains. As links in the text: developers.cloudflare.com and github.com. This is read from the text; nothing was executed.

Is K2 safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does K2 use?

K2 is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does K2 use?

About 544 tokens (SKILL.md is roughly 2.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to K2?

Skills that share tags, products or a category with K2: Cloudflare Browser Rendering (cloudflare/moltworker, 9.9k stars), Star Office UI Setup (ringhyacinth/Star-Office-UI, 7.5k stars), Cloudflare (hodgef/apiker, 127 stars) and Webhome Extension Builder (webhtv/webhtv, 1.7k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains K2?

cloudflare (a GitHub organization, an official publisher) maintains it in cloudflare/skills, which has 2,999 GitHub stars. The repository holds 16 skills in this directory. The repository was last updated on October 1, 2026.

Source: cloudflare/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

K2

Install K2

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Cloudflare K2

Documentation

Files

Used in 1 other repository

Compare with similar skills

Similar skills

Cloudflare Browser Rendering

Star Office UI Setup

Cloudflare

Webhome Extension Builder

Golive

Webhome Homepage Builder

More from cloudflare/skills

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Questions about K2

Install K2

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Cloudflare K2

Documentation

Files

Used in 1 other repository

Compare with similar skills

Similar skills

More from cloudflare/skills

Related

Questions about K2