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 coleschaffer/copywritingskills-rmbc --skill upsell-scriptgit clone --depth 1 https://github.com/coleschaffer/copywritingskills-rmbcWrote 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/coleschaffer/copywritingskills-rmbc/upsell-script)<a href="https://agentmods.dev/skills/coleschaffer/copywritingskills-rmbc/upsell-script"><img src="https://agentmods.dev/badge/skills/coleschaffer/copywritingskills-rmbc/upsell-script.svg" alt="Measured on agentmods" 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 | $0.00035 | $0.01429 |
| Opus 5 | $0.00017 | $0.00714 |
| Sonnet 5 | $0.00007 | $0.00286 |
| Haiku 4.5 | $0.00003 | $0.00143 |
Grade A, and why
upsell-script 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 8d 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 — 141 lines — stays where its author put it; the contents beside it link to each section on GitHub.
upsell-script
Purpose
Generate a complete upsell / OTO (one-time offer) page script structured around RMBC principles. Upsell pages appear immediately after purchase — the buyer's credit card is still warm, trust is at peak, and buying momentum is highest. The script must be short, urgent, and frictionless. Structure: congratulations on their purchase → "but wait" transition → complementary offer with its own mechanism → price anchoring against the value → single yes/no CTA. No navigation, no distractions — one decision only. Target: 60-90 seconds to read.
Inputs
| Input | Required | Description |
|---|---|---|
main_product |
Yes | What the customer just purchased — name, price, core promise |
upsell_product |
Yes | What you're offering next — name, what it does, how it complements the main product |
upsell_price |
Yes | Price of the upsell and any discount framing (e.g., "normally $197, today only $67") |
target_audience |
Yes | Who the buyer is — demographics, pain points, desires, sophistication level |
key_mechanism |
No | The upsell product's unique mechanism (output from /mechanism-ideation) |
guarantee |
No | Money-back guarantee details (default: same as main product guarantee) |
Execution Protocol
Step 1 — Load Framework Context
Read rmbc-context/SKILL.md to load RMBC framework definitions. Upsell scripts compress the full RMBC arc into a single page — Research validates the complementary need, Mechanism justifies urgency, Brief structures the one-page argument, Copy executes with radical brevity.
Step 2 — Map the Emotional State
The buyer just said yes to the main product. Map their current psychology:
- Momentum — They're in buying mode, credit card already entered
- Trust peak — They just trusted you with money; reciprocity is high
- Desire gap — What adjacent problem does the main product NOT solve?
- Completion instinct — How does the upsell complete what they just started?
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.
- 8d ago First seen · 141 lines · 35 tokens per session scan A 08a24ce9b20e
upsell-script is a skill published in the GitHub repository coleschaffer/copywritingskills-rmbc (30 stars, last pushed 5mo ago), licensed MIT. It adds 35 tokens to every session and 1,429 once invoked, about $0.0002 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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