What is cloudbox AGENTS.md?

A project guide for Cloudbox, an open-source Cloudflare service that leads visitors from its homepage to a demo, documentation, source code, and deployment. It records the approved commands, deployment process, account boundaries, and production secrets.

Running builds, type checks, tests, demos, and end-to-end checks; preparing production deployments through GitHub Actions; and verifying Cloudflare tokens, accounts, databases, and worker scripts.

It gives coding agents one reliable set of project rules and helps prevent deploying to the wrong Cloudflare account or missing required production configuration.

How acoyfellow/cloudbox configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to acoyfellow/cloudbox. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/acoyfellow/cloudbox/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/acoyfellow/cloudbox

Made for: Codex, OpenCode.

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/instructions/acoyfellow/cloudbox/agents-md/github.svg)](https://agentmods.dev/instructions/acoyfellow/cloudbox/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/acoyfellow/cloudbox/agents-md"><img src="https://agentmods.dev/badge/instructions/acoyfellow/cloudbox/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/acoyfellow/cloudbox/agents-md"><img src="https://agentmods.dev/badge/instructions/acoyfellow/cloudbox/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 670 This file is loaded in full into every session.

When invoked 670 The same file — it is already loaded in full.

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

Origin original 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.

Model	Per session	Once invoked
Fable 5.1	$0.00670	$0.00670
Opus 5.5	$0.00268	$0.00268
Sonnet 5.5	$0.00134	$0.00134
Haiku 4.5	$0.00067	$0.00067

Measured 2mo ago against content hash 887b7a892b9a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cloudbox AGENTS.md 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 2mo 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.

AGENTS.md · 125 lines

How it starts

The opening of the file, as written. The whole thing — 125 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cloudbox agent guide

Cloudbox is an OSS Cloudflare funnel: homepage → demo → docs → source → Deploy to Cloudflare.

Canonical commands

bun run build
bun run typecheck
bun run test
bun run demo:fast
bun run demo:browser
CLOUDBOX_E2E_URL=https://cloudbox.coey.dev node scripts/e2e.mjs

Deploy model

Production deploys through GitHub Actions with Alchemy.

Canonical deploy file:

alchemy.run.ts

Production target:

https://cloudbox.coey.dev

Do not switch local Wrangler accounts to deploy Cloudbox. Use GitHub Actions secrets for production.

Cloudflare account boundaries

Cloudbox production belongs in the personal Cloudflare account:

[email protected]'s Account
bfcb6ac5b3ceaf42a09607f6f7925823

Do not deploy Cloudbox to the employee/AX account:

Agent Experience
31b91e7f9954ad8aa334d46f012bd8ed

Required production secrets

Set on the GitHub production environment:

CLOUDFLARE_ACCOUNT_ID
CLOUDFLARE_API_TOKEN
ALCHEMY_PASSWORD
ALCHEMY_STATE_TOKEN
CLOUDBOX_API_TOKEN
CLOUDBOX_D1_DATABASE_ID

Token must be validated against:

/user/tokens/verify
/accounts
/accounts/:account_id/d1/database?name=cloudbox-prod
/accounts/:account_id/workers/scripts/alchemy-state-store/script-settings
/accounts/:account_id/secrets_store/stores

Public copy rules

Do not mention private internal project names.
Do not use the word previously used for self-testing; call it demo, proof run, sample run, or launch-readiness run.
Public concept is: clean remote computer.
Public funnel is: demo → docs → GitHub → Deploy to Cloudflare.

Current vs next

Current:

deployed Astro/Worker app
demo workspace
receipts/artifacts/grading
local cloudbox.run() proof slice in src/run.ts
deploy path via GitHub Actions + Alchemy

hosted remote-computer runner
real cloud cloudbox.run() execution
tool plugin reference docs

File map

web/src/pages/index.astro          homepage/funnel
web/src/pages/demo.astro           demo page shell
web/src/components/SampleAgent.tsx demo client interaction
src/run.ts                         local proof-run slice
src/computer-do.ts                 workspace Durable Object
src/grade.ts                       receipt grading
alchemy.run.ts                     Cloudflare infra/deploy
scripts/demo.mjs                   headless demo
scripts/browser-demo.mjs           browser demo

Read the full file on GitHub · 125 lines

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.

2mo ago First seen · 125 lines · 670 tokens per session scan A 887b7a892b9a

Subscribe to this mod's changes

cloudbox AGENTS.md is an instructions file published in the GitHub repository acoyfellow/cloudbox (56 stars, last pushed 3mo ago), licensed MIT. It adds 670 tokens to every session, about $0.0027 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Cloud DevOps and cloud agent-computer agent-evaluation ai-agents cloudflare cloudflare-workers durable-objects

cloudbox AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
cloudbox AGENTS.mdacoyfellow/cloudbox	Instructions file	56	3mo ago	MIT	A	670	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

cloudbox: Instructions file for Codex