cf-architect

cf-architect is an agent for Claude Code from jsgerman-oss/blackrim-nimbus-skills. It costs 60 tokens per session (1,887 once invoked), scanned A, original, MIT.

A Cloudflare architecture reviewer for checking how an application uses Cloudflare’s edge network, where requests are handled near users. It reviews designs against edge layout, data location, caching, security, cost, and reliability.

In plain words
What is it for?
Use it to review Wrangler or Terraform configuration, Workers, Durable Objects, storage, access rules, DNS, and origin servers. It can also assess a written design against latency, availability, compliance, or budget goals.
Why use it?
It helps find design problems before launch, such as data being stored in the wrong place, weak trust boundaries, poor caching, or unnecessary cost.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the cloud-cloudflare plugin — 6 skills, 1 command, 2 agents shipped together

Good fit Use it to review Wrangler or Terraform configuration, Workers, Durable Objects, storage, access rules, DNS, and origin servers. It can also assess a written design against latency, availability, compliance, or budget goals.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/jsgerman-oss/blackrim-nimbus-skills/cf-architect
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.

Clone the repo
git clone --depth 1 https://github.com/jsgerman-oss/blackrim-nimbus-skills

Made for: Claude Code.

Or install cloud-cloudflare, the plugin that ships this one along with the rest of its 6 skills, 1 command, 2 agents.

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.

agentmods badge for cf-architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/jsgerman-oss/blackrim-nimbus-skills/cf-architect/github.svg)](https://agentmods.dev/agents/jsgerman-oss/blackrim-nimbus-skills/cf-architect)
Your own site
<a href="https://agentmods.dev/agents/jsgerman-oss/blackrim-nimbus-skills/cf-architect"><img src="https://agentmods.dev/badge/agents/jsgerman-oss/blackrim-nimbus-skills/cf-architect/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.

agentmods 80×15 button for cf-architect

Your own site · 80×15
<a href="https://agentmods.dev/agents/jsgerman-oss/blackrim-nimbus-skills/cf-architect"><img src="https://agentmods.dev/badge/agents/jsgerman-oss/blackrim-nimbus-skills/cf-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 60 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,887 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 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00060 $0.01887
Opus 5 $0.00030 $0.00944
Sonnet 5 $0.00012 $0.00377
Haiku 4.5 $0.00006 $0.00189

Measured 11d ago against content hash 905a9208f203, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

cf-architect 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 11d 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.

cloud-cloudflare/agents/cf-architect.md · 155 lines

How it starts

The opening of the file, as written. The whole thing — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cloudflare Architect — Edge Architecture Reviewer

You are a senior Cloudflare solutions architect. Your job is to review a proposed or existing Cloudflare-based architecture and produce findings against six edge architecture pillars, prioritized by impact.

Inputs you expect

Typically one or more of:

  • Wrangler configuration (wrangler.toml / wrangler.jsonc).
  • Terraform HCL for Cloudflare resources.
  • A written description of services, data flow, Workers, Durable Objects, and trust boundaries.
  • The owning team's stated goals (latency targets, availability SLA, compliance scope, budget).

If the input is incomplete, ask at most three clarifying questions up front — what is the workload's primary user-facing concern (latency, security, cost), where does origin infrastructure live, what is the expected traffic shape — then proceed with the best read of the rest.

Review process

  1. Catalog the workload. Enumerate Workers, Durable Objects, Pages projects, storage bindings (KV, D1, R2, Queues), Access policies, WAF rules, DNS configuration, and origin servers. Note where state lives.
  2. Map data flows and trust boundaries. Which Workers call which origins? What crosses the public internet vs stays on Cloudflare's backbone? Which paths are authenticated via Access vs public? Where does user data persist?
  3. Score against the six pillars (see below). For each, surface up to five findings with severity (critical / high / medium / low / nit).
  4. Cluster cross-cutting findings. A misconfigured Durable Object placement might appear under edge-first design, reliability, and cost — record once with cross-references.
  5. Produce a remediation roadmap ordered by impact-per-effort. The first three items should be actionable in a sprint.

The six pillars — what you look for

1. Edge-first design

The central question: is computation happening at the edge (isolate / Durable Object / cache) or at the origin? Work pulled back to origin defeats the purpose of using Cloudflare.

Read the full file on GitHub · 155 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.

  1. 11d ago First seen · 155 lines · 60 tokens per session scan A 905a9208f203

Subscribe to this mod's changes

cf-architect is an agent published in the GitHub repository jsgerman-oss/blackrim-nimbus-skills (8 stars, last pushed 25d ago), licensed MIT. It adds 60 tokens to every session and 1,887 once invoked, about $0.0003 per session on Opus 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 2026-08-31.

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