copywriting

copywriting is a skill for Codex from Rylaispirit/rylai-codex-hermes-skills. It costs 36 tokens per session (933 once invoked), scanned A, original, MIT.

A writing assistant for persuasive business copy, such as landing pages, product pages, advertisements, emails, headlines, offers, and calls to action.

In plain words
What is it for?
Use it to plan, draft, review, and vary marketing messages for a defined audience and next action.
Why use it?
It helps make an offer understandable and credible without adding unsupported claims, customers, urgency, or results.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: mentions Codex.

Good fit Use it to plan, draft, review, and vary marketing messages for a defined audience and next action.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rylaispirit/rylai-codex-hermes-skills/copywriting
Install

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.

Any agent
npx skills add Rylaispirit/rylai-codex-hermes-skills --skill copywriting
Clone the repo
git clone --depth 1 https://github.com/Rylaispirit/rylai-codex-hermes-skills

Made for: Codex.

Wrote 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.

agentmods badge for copywriting

README.md
[![agentmods](https://agentmods.dev/badge/skills/rylaispirit/rylai-codex-hermes-skills/copywriting/github.svg)](https://agentmods.dev/skills/rylaispirit/rylai-codex-hermes-skills/copywriting)
Your own site
<a href="https://agentmods.dev/skills/rylaispirit/rylai-codex-hermes-skills/copywriting"><img src="https://agentmods.dev/badge/skills/rylaispirit/rylai-codex-hermes-skills/copywriting/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.

agentmods 80×15 button for copywriting

Your own site · 80×15
<a href="https://agentmods.dev/skills/rylaispirit/rylai-codex-hermes-skills/copywriting"><img src="https://agentmods.dev/badge/skills/rylaispirit/rylai-codex-hermes-skills/copywriting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 933 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high System Prompt Leakage · line 113
    Skill contains instructions that could directly expose system prompts, internal rules, or hidden instructions to users or external parties.
    Fix: Remove any instructions that reveal, print, or output system prompts or internal rules. System instructions should never be exposed to end users.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00036 $0.00933
Opus 5 $0.00018 $0.00466
Sonnet 5 $0.00007 $0.00187
Haiku 4.5 $0.00004 $0.00093

Measured 11d ago against content hash 30239501a81c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

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 11d 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.

skills/copywriting/SKILL.md · 135 lines

How it starts

The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Copywriting

Create persuasive copy without inventing claims, customers, urgency, or results. The goal is to help the intended reader understand the offer, trust the evidence, and take one appropriate next action.

Runtime Compatibility

  • Resolve every bundled file relative to this skill directory.
  • In Codex, use the available workspace, browser, and research tools.
  • In Hermes, map those steps to equivalent tools exposed by the runtime.
  • Check tool access before promising research, file edits, publishing, or tests.

Intake

Collect what is already available before asking questions:

  • offer, product, or service;
  • target audience and buying context;
  • desired action;
  • channel and format;
  • voice, language, and length;
  • verified proof, constraints, and prohibited claims.

Ask only for missing details that would materially change the copy. If the user wants a fast draft, state the assumptions briefly and continue.

Workflow

  1. Define the job

    • Write one sentence describing the audience, problem, desired outcome, and next action.
    • Separate the primary promise from supporting benefits.
  2. Build an evidence inventory

    • List available product facts, demonstrations, customer language, metrics, guarantees, and limitations.
    • Mark unsupported claims as gaps. Do not turn gaps into marketing facts.
  3. Choose a message path

    • Problem-led: useful when the audience already recognizes the pain.
    • Outcome-led: useful when the benefit is concrete and easy to picture.
    • Mechanism-led: useful when the method is the meaningful differentiator.
    • Proof-led: useful when credible evidence is the strongest reason to care.
  4. Draft for the channel

    • Lead with the clearest relevant value.
    • Keep one primary call to action.
    • Put proof close to the claim it supports.
    • Use headings and short blocks for scan-heavy surfaces.
    • Match commitment level to audience intent.
  5. Review

    • Remove vague superlatives and unnecessary pressure.
    • Confirm every number, quote, deadline, comparison, and customer reference.
    • Check that the headline, body, and CTA promise the same outcome.
    • Produce variants only when each tests a distinct hypothesis.

Read the full file on GitHub · 135 lines

Files

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.

Changes

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.

  1. 11d ago First seen · 135 lines · 36 tokens per session scan A 30239501a81c

Subscribe to this mod's changes

copywriting is a skill published in the GitHub repository Rylaispirit/rylai-codex-hermes-skills (55 stars, last pushed 28d ago), licensed MIT. It adds 36 tokens to every session and 933 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.

Related

Other skills, from other repositories

deep-research

Autonomous multi-step deep research engine implementing an iterative Think → Search → Extract → Synthesize → Stop loop. The LLM drives every decision: what to search, what's relevant, what's missing, and when to stop. Produces a cited, magazine-quality report with inline citations, category- specific formatting, and…

moonlight-lupin/agent-skills · 147 tokens

image-studio

Generate, edit and upscale AI images via fal.ai through a three-stage studio workflow — brainstorm a strong prompt with the user, prototype cheaply and iterate on feedback, then produce a finalised image. Use when the user wants image generation or editing through the local fal.ai helper workflow, including requests…

moonlight-lupin/agent-skills · 214 tokens

website-scraping

Generic playbook for extracting structured data from any website — hotel prices, flight fares, e-commerce listings, real estate, jobs, competitor product catalogues, anything where the goal is to turn one or more URLs into clean records on disk. Use this skill whenever the user mentions scraping, harvesting…

moonlight-lupin/agent-skills · 210 tokens

skill-maintainer

Track upstream drift and sync adapted skill libraries.

moonlight-lupin/agent-skills · 12 tokens

clips-studio

Use when the user wants to "make a video/clip", "generate a video from text", "animate this image/photo", "create a marketing reel / social video / teaser", "do a 3D / parallax move", "pan/zoom/orbit a shot", or mentions fal.ai, Kling, Veo or Seedance for video. Staged fal.ai workflow — brainstorm, draft cheaply…

moonlight-lupin/agent-skills · 146 tokens

library-rag

Semantic search over a personal library using Nemotron-3-Embed-1B embeddings + sqlite-vec. Index books, documents, any text corpus; query by meaning. Includes EPUB→Markdown conversion and MCP server for auto-available search tools.

moonlight-lupin/agent-skills · 54 tokens