A guide for developing on Cloudflare, a platform for running web code and storing data at the network edge. It covers products such as Workers, Pages, KV, D1, R2, Vectorize, networking, security, and infrastructure-as-code tools.

Building Cloudflare applications, configuring storage and AI services, setting up networking and security, and managing infrastructure with Terraform or Pulumi.

It helps choose the relevant Cloudflare product and points developers to current documentation when built-in references may be outdated.

cloudflare — Skill for Claude Code and Codex by d-padmanabhan

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.

Any agent

npx skills add d-padmanabhan/agent-engineering-handbook --skill cloudflare

Clone the repo

git clone --depth 1 https://github.com/d-padmanabhan/agent-engineering-handbook

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/d-padmanabhan/agent-engineering-handbook/cloudflare.svg)](https://agentmods.dev/skills/d-padmanabhan/agent-engineering-handbook/cloudflare)

Your own site

<a href="https://agentmods.dev/skills/d-padmanabhan/agent-engineering-handbook/cloudflare"><img src="https://agentmods.dev/badge/skills/d-padmanabhan/agent-engineering-handbook/cloudflare.svg" alt="Measured on agentmods" height="20"></a>

Per session 87 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,125 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 100% copy Near-identical to another mod 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.

Model	Per session	Once invoked
Fable 5.1	$0.00087	$0.02125
Opus 5	$0.00044	$0.01063
Sonnet 5	$0.00017	$0.00425
Haiku 4.5	$0.00009	$0.00213

Measured 3d ago against content hash 0a4e9828c3ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

cloudflare scanned grade A with 0 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to cloudflare — 18 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/cloudflare/SKILL.md · 257 lines

How it starts

The opening of the file, as written. The whole thing — 257 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cloudflare Platform Skill

Consolidated skill for building on the Cloudflare platform. Use decision trees below to find the right product, then load detailed references.

Your knowledge of Cloudflare APIs, types, limits, and pricing may be outdated. Prefer retrieval over pre-training - the references in this skill are starting points, not source of truth.

Retrieval Sources

Fetch the latest information before citing specific numbers, API signatures, or configuration options. Do not rely on baked-in knowledge or these reference files alone.

Source	How to retrieve	Use for
Cloudflare docs	`cloudflare-docs` search tool or `https://developers.cloudflare.com/`	Limits, pricing, API reference, compatibility dates/flags
Workers types	`npm pack @cloudflare/workers-types` or check `node_modules`	Type signatures, binding shapes, handler types
Wrangler config schema	`node_modules/wrangler/config-schema.json`	Config fields, binding shapes, allowed values
Product changelogs	`https://developers.cloudflare.com/changelog/`	Recent changes to limits, features, deprecations

When a reference file and the docs disagree, trust the docs. This is especially important for: numeric limits, pricing tiers, type signatures, and configuration options.

Quick Decision Trees

"I need feature flags"

Need feature flags?
└─ Feature toggles, targeting rules, percentage rollouts → flagship/
   ├─ Evaluate in Workers → Flagship binding (env.FLAGS)
   ├─ Evaluate in Node.js / browser → OpenFeature SDK (@cloudflare/flagship)
   └─ Manage flags via API → Flagship REST API

"I need to run code"

Need to run code?
├─ Serverless functions at the edge → workers/
├─ Full-stack web app with Git deploys → pages/
├─ Stateful coordination/real-time → durable-objects/
├─ Long-running multi-step jobs → workflows/
├─ Run containers → containers/
├─ Multi-tenant (customers deploy code) → workers-for-platforms/
├─ Scheduled tasks (cron) → cron-triggers/
├─ Lightweight edge logic (modify HTTP) → snippets/
├─ Process Worker execution events (logs/observability) → tail-workers/
└─ Optimize latency to backend infrastructure → smart-placement/

Read the full file on GitHub · 257 lines

Files

What ships with it

60 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

3d ago First seen · 257 lines · 87 tokens per session scan A 0a4e9828c3ef

Subscribe to this mod's changes

cloudflare is a skill published in the GitHub repository d-padmanabhan/agent-engineering-handbook (16 stars, last pushed 7d ago), licensed MIT. It adds 87 tokens to every session and 2,125 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to cloudflare, differing in 18 lines, and is treated as a copy.

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