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 swan-gtm/gtm-skills --skill i-made-this-for-you-emailgit clone --depth 1 https://github.com/swan-gtm/gtm-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/swan-gtm/gtm-skills/i-made-this-for-you-email)<a href="https://agentmods.dev/skills/swan-gtm/gtm-skills/i-made-this-for-you-email"><img src="https://agentmods.dev/badge/skills/swan-gtm/gtm-skills/i-made-this-for-you-email/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/swan-gtm/gtm-skills/i-made-this-for-you-email"><img src="https://agentmods.dev/badge/skills/swan-gtm/gtm-skills/i-made-this-for-you-email.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 | $0.00202 | $0.01580 |
| Opus 5 | $0.00101 | $0.00790 |
| Sonnet 5 | $0.00040 | $0.00316 |
| Haiku 4.5 | $0.00020 | $0.00158 |
Grade A, and why
i-made-this-for-you-email 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 — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Write An "I Made This For You" Email
Write the announcement email you send your list when you've built something new for them — a lead magnet, resource, tool, template, or guide. Frame it as a gift, not a pitch.
Why This Works
"I made this for you" emails are some of the highest-converting emails in any creator's arsenal. They work because: (1) the framing is generous — you're giving, not selling, (2) the backstory creates emotional connection — you explain WHY you built it, not just what it is, (3) they trigger reciprocity — when someone gives you something valuable for free, you pay more attention to everything they send next, and (4) they build trust and authority — you're demonstrating expertise by packaging it into a tangible asset. These emails routinely hit 2-3x the click-through rate of standard newsletters because the CTA is clear: get the free thing.
How to Use This Skill
When triggered, ask the user for:
To write your announcement email, I need:
- What did you create? — Name and format (PDF, Notion template, email course, spreadsheet, video, checklist, etc.)
- What's inside? — 3-5 key things the resource contains or teaches
- Who's it for? — The specific person who needs this most
- Why did you create it? — The backstory. What problem did you see? What inspired it? What personal experience led to this?
- How do they get it? — Landing page link, reply to get it, comment on a post, etc.
- Your paid offer (optional) — So the email can subtly bridge to it
The 5-Part Structure
Part 1: The Backstory (Why You Built It)
Open with the story behind the resource. This is the most important part — it's what separates "I made this for you" from "here's a link."
Good backstory angles:
- The pattern you noticed: "I keep getting the same question from subscribers/clients..."
- The problem you solved for yourself: "I spent 3 weeks building this for my own business, and it worked so well that..."
- The frustration that triggered it: "I was tired of seeing [audience] struggle with [problem], so I..."
- The conversation that inspired it: "A client said something last week that stopped me cold..."
- The result that proved it works: "This is the exact [thing] that helped me [achieve result]..."
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 · 119 lines · 202 tokens per session scan A 7da4a0d733b0
i-made-this-for-you-email is a skill published in the GitHub repository swan-gtm/gtm-skills (150 stars, last pushed 2d ago), licensed MIT. It adds 202 tokens to every session and 1,580 once invoked, about $0.0010 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 2026-09-03.
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