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 hyperfx-ai/marketing-skills --skill email-lifecyclegit clone --depth 1 https://github.com/hyperfx-ai/marketing-skillsWrote 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/hyperfx-ai/marketing-skills/email-lifecycle)<a href="https://agentmods.dev/skills/hyperfx-ai/marketing-skills/email-lifecycle"><img src="https://agentmods.dev/badge/skills/hyperfx-ai/marketing-skills/email-lifecycle/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/hyperfx-ai/marketing-skills/email-lifecycle"><img src="https://agentmods.dev/badge/skills/hyperfx-ai/marketing-skills/email-lifecycle.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 | $0.00111 | $0.03321 |
| Opus 5.5 | $0.00044 | $0.01328 |
| Sonnet 5.5 | $0.00022 | $0.00664 |
| Haiku 4.5 | $0.00011 | $0.00332 |
Grade A, and why
email-lifecycle 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 1mo 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 — 201 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Email Lifecycle
End-to-end lifecycle email — pick the right provider for the job, build the audience, draft the sequence, launch, and measure. Cross-provider patterns at the top; provider-specific tool calls below.
Out of scope — defer to other skills
| Request | Send them to |
|---|---|
| Cold outbound to people who haven't opted in | cold-email-outreach |
| Generating images for email creatives | image-generation |
| Generating ad creatives that run alongside the lifecycle program | ad-creative-generation |
| SEO research / blog content for the newsletter | seo-research |
Requirements
- Hyper MCP installed and connected. https://app.hyperfx.ai/mcp
- At least one of these providers connected at https://app.hyperfx.ai/apps:
- Klaviyo — ecommerce, Shopify-heavy lists, behavioral triggers off purchase / browse data
- Resend — product-led / SaaS / dev tools, transactional + lifecycle on the same domain
- Beehiiv — newsletters, paid-tier subscriptions, content-driven lists
- Gmail — small / personal lists, founder-mode broadcasts, ops emails
If none of those tool prefixes (klaviyo_*, resend_*, beehiiv_*, gmail_*) appear in the agent's tool list, stop and tell the user to enable the Hyper MCP and connect the provider they intend to use.
How to run the tools in this skill
Every tool in this skill is named by its canonical tool name. Run it with the call your surface gives you:
| Surface | Find a tool | Run it |
|---|---|---|
| MCP client (Claude, Cursor, Codex, ChatGPT) | search("<what you want to do>"), then describe("<name>") |
call("<name>", {...}) |
| Hyper CLI | hyperai search "<what you want to do>", then hyperai describe <name> |
hyperai call <name> --json '{...}' |
If a tool is not found, its integration is not connected or not enabled for the workspace: stop and tell the user which integration to connect.
Provider selection
What ships with it
2 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.
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.
- 1mo ago Changed · +11 lines df6cd9c2d6b2
- 1mo ago First seen · 190 lines · 111 tokens per session scan A 24f53fc14ebc
email-lifecycle is a skill published in the GitHub repository hyperfx-ai/marketing-skills (108 stars, last pushed 2d ago), licensed MIT. It adds 111 tokens to every session and 3,321 once invoked, about $0.0004 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.
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