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 free-offer-briefgit 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/free-offer-brief)<a href="https://agentmods.dev/skills/coleschaffer/copywritingskills-rmbc/free-offer-brief"><img src="https://agentmods.dev/badge/skills/coleschaffer/copywritingskills-rmbc/free-offer-brief/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/coleschaffer/copywritingskills-rmbc/free-offer-brief"><img src="https://agentmods.dev/badge/skills/coleschaffer/copywritingskills-rmbc/free-offer-brief.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 | $0.00047 | $0.02062 |
| Opus 5 | $0.00023 | $0.01031 |
| Sonnet 5 | $0.00009 | $0.00412 |
| Haiku 4.5 | $0.00005 | $0.00206 |
Grade A, and why
free-offer-brief 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 12d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- free-offer-brief — 88% identical, 88 lines differ
How it starts
The opening of the file, as written. The whole thing — 194 lines — stays where its author put it; the contents beside it link to each section on GitHub.
free-offer-brief
Purpose
Design free lead magnets and tripwire offers that serve as funnel entry points. The free offer IS the first impression — it must demonstrate the same RMBC quality as paid products. A weak lead magnet trains prospects to ignore you. A strong one builds trust, establishes mechanism credibility, and creates reciprocity that drives paid conversions. This skill outputs a complete brief for each offer type: name, format, hook angle, landing page headline, perceived value framing, production cost estimate, and the email follow-up strategy that converts free leads into buyers.
Inputs
| Input | Required | Description |
|---|---|---|
product_line |
Yes | The paid product(s) this free offer will lead into — name, price, core promise |
target_audience |
Yes | Who the prospect is — demographics, pain points, desires, awareness level |
offer_type |
Yes | One of: guide, checklist, quiz, free_shipping, trial, sample |
budget_constraint |
No | Maximum production/fulfillment cost per lead (default: $0 for digital, specify for physical) |
Execution Protocol
Step 1 — Load Framework Context
Read rmbc-context/SKILL.md to load RMBC framework definitions. Free offers apply RMBC in miniature — Research identifies what the audience values enough to trade their email for, Mechanism gives the free offer a unique angle that previews the paid product's approach, Brief structures the offer for maximum perceived value, Copy makes the landing page convert.
Step 2 — Assess Offer Type Fit
Evaluate the chosen offer type against the audience and product line:
| Offer Type | Best For | Perceived Value Driver | Fulfillment Cost |
|---|---|---|---|
| Guide | Info products, services — audience wants education | Depth of insight, specificity | $0 (digital PDF) |
| Checklist | Action-oriented audiences — want quick wins | Immediate usability, saves time | $0 (digital) |
| Quiz | Broad audiences — curiosity-driven, personalization | Self-knowledge, custom results | $0 (software) |
| Free+Shipping | Physical products — supplements, beauty, gadgets | Tangible product in hand | $3-15 COGS + shipping |
| Trial | Software, subscriptions — need to experience value | Risk-free experience of the real product | Variable (usage cost) |
| Sample | Consumables — supplements, food, skincare | Taste/test before committing to full supply | $2-8 COGS + shipping |
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.
- 12d ago First seen · 194 lines · 47 tokens per session scan A be00b74d74f2
free-offer-brief is a skill published in the GitHub repository coleschaffer/copywritingskills-rmbc (30 stars, last pushed 5mo ago), licensed MIT. It adds 47 tokens to every session and 2,062 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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