Borrowing it
Nothing to install: this file belongs to choyiny/saasmail. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/choyiny/saasmail/main/.claude/skills/saasmail-onboarding/SKILL.mdgit clone --depth 1 https://github.com/choyiny/saasmailWrote 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/choyiny/saasmail/saasmail-onboarding)<a href="https://agentmods.dev/skills/choyiny/saasmail/saasmail-onboarding"><img src="https://agentmods.dev/badge/skills/choyiny/saasmail/saasmail-onboarding/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/choyiny/saasmail/saasmail-onboarding"><img src="https://agentmods.dev/badge/skills/choyiny/saasmail/saasmail-onboarding.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00084 | $0.04111 |
| Opus 5 | $0.00042 | $0.02056 |
| Sonnet 5 | $0.00017 | $0.00822 |
| Haiku 4.5 | $0.00008 | $0.00411 |
Grade A, and why
saasmail-onboarding 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 331 lines — stays where its author put it; the contents beside it link to each section on GitHub.
saasmail Onboarding Wizard
Guide the user through deploying a production saasmail instance to their Cloudflare account. This wizard is deployment-only — it does not set up local development. Every step targets the user's live Cloudflare environment.
Before You Start
Read wrangler.jsonc.example in the project root so you know the exact shape of the config that will be filled in. It is your source of truth for which resources and bindings are required.
What the user is signing up for
Set expectations up front, so the user knows what they're committing to:
- ~30–40 minutes total; most of the wait is DNS propagation, not typing.
- Two decisions: which domains will be used, and which outbound email provider (Cloudflare Email Sending, Resend, Bavimail, or Postmark).
- Three manual Cloudflare-dashboard steps (Email Routing per inbound domain, Email Service per send-from domain, and checking the deployed worker).
- Cost: a Cloudflare Workers Paid plan (~$5/mo) is required. saasmail uses Queues, which aren't on the free plan. Email Routing is free; Cloudflare Email Sending is usage-based.
Tell the user all of this before touching anything, so they can back out cheaply.
Preflight Checkpoints (hard gates)
Confirm each of these explicitly with the user — ask, don't assume. If any answer is "no", stop and help them resolve it before continuing. These exist because every later step assumes them, and a half-configured Cloudflare account is annoying to clean up.
Checkpoint 1 — Do you own a domain?
Ask: "Do you already own a domain you want to use for saasmail?"
- No → Stop. Tell them to buy one (Cloudflare Registrar, Namecheap, etc.) and come back. A single domain can cover all three roles; split domains are also fine.
Checkpoint 2 — Is that domain on Cloudflare?
Ask: "Are the domain's nameservers pointing to Cloudflare (the domain is an active Cloudflare zone)?"
- No → Stop. Instruct them to open the Cloudflare dashboard → Add a Site, then switch nameservers at their registrar to the ones Cloudflare provides. Propagation can take up to a few hours. Both Email Routing and
custom_domainworker routes require the zone to live on Cloudflare.
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.
- 9d ago First seen · 331 lines · 84 tokens per session scan A 9486afee3959
saasmail-onboarding is a skill published in the GitHub repository choyiny/saasmail (247 stars, last pushed 2d ago), licensed Apache-2.0. It adds 84 tokens to every session and 4,111 once invoked, about $0.0004 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 2026-08-30.
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