cloudflare/nimbus scaffolds a complete Astro documentation website as editable files in a repository, including its layouts, components, styles, routes, and content. It is for people building documentation sites that both humans and coding agents can use. The catalogue instruction helps coding agents work with Nimbus documentation projects.
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.
npx skills add cloudflare/nimbus --skill build-a-nimbus-sitegit clone --depth 1 https://github.com/cloudflare/nimbusWrote 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.
[](https://agentmods.dev/skills/cloudflare/nimbus/build-a-nimbus-site)<a href="https://agentmods.dev/skills/cloudflare/nimbus/build-a-nimbus-site"><img src="https://agentmods.dev/badge/skills/cloudflare/nimbus/build-a-nimbus-site/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.
<a href="https://agentmods.dev/skills/cloudflare/nimbus/build-a-nimbus-site"><img src="https://agentmods.dev/badge/skills/cloudflare/nimbus/build-a-nimbus-site.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00051 | $0.00546 |
| Opus 5.5 | $0.00020 | $0.00218 |
| Sonnet 5.5 | $0.00010 | $0.00109 |
| Haiku 4.5 | $0.00005 | $0.00055 |
Grade A, and why
build-a-nimbus-site 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 2d 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.
What it actually says
Build a Nimbus docs site
Nimbus builds documentation sites on Astro. The scaffolder copies layouts, components and styles into the project, and the user owns them from then on. The @cloudflare/nimbus-docs package provides the plumbing and the nimbus-docs CLI.
Full docs: https://nimbus-docs.com/llms.txt. Every page has a Markdown version at <page>/index.md.
Create a site
Requires Node 22.12 or later.
npm create @cloudflare/nimbus-docs@latest my-docs -- --yes
cd my-docs
npm run dev
Pass --adapter cloudflare for a server-rendered site. All options: https://nimbus-docs.com/reference/scaffolder-options/index.md
Write pages
- A page is a
.mdor.mdxfile undersrc/content/docs/. Its path is its URL and its place in the sidebar:src/content/docs/guides/install.mdxis/guides/install/. - Every component used in
.mdxmust be listed insrc/components.ts. - Details: https://nimbus-docs.com/writing/pages-and-routing/index.md
Add components and features
npx nimbus-docs list # what the registry offers
npx nimbus-docs add <slug> # install one
Features such as changelog print a recipe for you to follow in the project. Read it with npx nimbus-docs add <slug> --print.
Check before you finish
npx nimbus-docs check
npm run build
check reports configuration, content and type problems with fixes. Run npx nimbus-docs lint after a build to check links.
Upgrade
After raising @cloudflare/nimbus-docs, run npx nimbus-docs migrate, complete each review it lists, run the completion command it prints, then npx nimbus-docs outdated to see starter files that changed upstream. Details: https://nimbus-docs.com/cli/index.md
Deploy
New sites deploy to Cloudflare Workers with npm run deploy, which builds first. Other hosts: https://nimbus-docs.com/deploy/index.md
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.
- 2d ago First seen · 55 lines · 51 tokens per session scan A 69b4d9a6b94e
build-a-nimbus-site is a skill published in the GitHub repository cloudflare/nimbus (1,448 stars, last pushed today), licensed MIT. It adds 51 tokens to every session and 546 once invoked, about $0.0002 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 2026-10-23.
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