cloudflare

A guide to building applications on Cloudflare’s edge platform, including code that runs near users, databases, file storage, and static websites.

In plain words
What is it for?
Use it to build Workers, D1 databases, R2 or KV storage, Durable Objects for real-time state, AI features, and sites hosted on Pages.
Why use it?
It helps you choose and connect Cloudflare services when an application needs more than a single serverless function.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/einverne/dotfiles/cloudflare
Any agent
npx skills add einverne/dotfiles --skill cloudflare
Clone the repo
git clone --depth 1 https://github.com/einverne/dotfiles

Made for: Claude Code, Codex.

Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,683 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. Scan, not verified.
Origin unknown 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 $0.00064 $0.06683
Opus 5 $0.00032 $0.03342
Sonnet 5 $0.00013 $0.01337
Haiku 4.5 $0.00006 $0.00668

Measured 3d ago against content hash dd0dae804518, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

cloudflare scanned grade B with 2 findings 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 3d 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.

Sends data to an external URLmediumData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

const response = await fetch( 'https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_id}/openai/chat/completions', { method: 'POST',

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

async fetch(request: Request, env: Env): Promise<Response> {
claude/skills/cloudflare/SKILL.md · 1,105 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 3d ago First seen · 1,105 lines · 64 tokens per session scan B dd0dae804518

Subscribe to this mod's changes

cloudflare is a skill published in the GitHub repository einverne/dotfiles (121 stars, last pushed 5d ago), licensed GPL-3.0. It adds 64 tokens to every session and 6,683 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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