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 agentmods add skills/jaredlangleycc/nightshift-os/copywritingnpx skills add jaredlangleycc/nightshift-os --skill copywritinggit clone --depth 1 https://github.com/jaredlangleycc/nightshift-osWrote 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/jaredlangleycc/nightshift-os/copywriting)<a href="https://agentmods.dev/skills/jaredlangleycc/nightshift-os/copywriting"><img src="https://agentmods.dev/badge/skills/jaredlangleycc/nightshift-os/copywriting.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 | $0.00110 | $0.01838 |
| Opus 5 | $0.00055 | $0.00919 |
| Sonnet 5 | $0.00022 | $0.00368 |
| Haiku 4.5 | $0.00011 | $0.00184 |
Grade A, and why
copywriting 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 5d 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 — 225 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Copywriting
Marketing copy for any page on the user's site. Headlines, body, CTAs, microcopy. Filtered through the user's voice-rules so it sounds like them, not like a generic SaaS template.
When this skill triggers
- "Write copy for [page]"
- "Improve this copy"
- "Rewrite the homepage / about / pricing / landing page / product page"
- "Headline help"
- "CTA suggestions"
- "What should the hero say"
- "Body copy for [section]"
NOT for: email copy (use email-sequence), cold outreach (use outreach-drafter), social posts (use social-content), proposals (use proposal-writer).
The 5-step copy process
Coach-mode first. Don't draft until the user has answered:
Step 1: Who is this for?
One ICP. Specific. Not "small business owners", "B2B SaaS founders with $50K-500K ARR who know marketing is broken."
If the user gives a vague ICP, push back with one question: "Pick one. Which type of buyer pays the most and complains the least?"
Step 2: What's the one decision they're making?
Every page is one decision. Homepage: "Is this person legit enough to keep reading?" Pricing page: "Am I buying or leaving?" About page: "Do I trust them?"
State the decision out loud before writing.
Step 3: What do they believe before they land?
The reader has a current belief. The page either confirms, expands, or contradicts it. Know which.
Examples:
- "Marketing is a black box" → Confirm + offer the antidote
- "I just need more leads" → Contradict (they need positioning, not leads)
- "Consultants are too expensive" → Expand ("expensive vs. revenue produced is the math")
Step 4: What's the proof?
One specific proof element. A client name, a number, a before-and-after, a quote. Generic claims ("trusted by thousands") = AI smell.
If the user has no proof yet, write copy that doesn't claim proof. Skip the testimonial section entirely rather than fake one.
Step 5: One CTA, one action
Every page = one CTA. Pricing page is "Book a call." Homepage is "Read more / Book a call." About page is "Book a call."
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.
- 5d ago First seen · 225 lines · 110 tokens per session scan A 1410ba7debdb
copywriting is a skill published in the GitHub repository jaredlangleycc/nightshift-os (3 stars, last pushed 1mo ago), licensed MIT. It adds 110 tokens to every session and 1,838 once invoked, about $0.0006 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 2026-08-31.
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