martinholovsky/sota-skills · skills/sota-copywriting/SKILL.md

sota-copywriting skillA

sota-copywriting is agent-read markdown (skill) from martinholovsky/sota-skills: State-of-the-art marketing copywriting and content guidance (2026) covering positioning and value propositions, headlines and landing-page copy, CTAs and social proof, SEO content (search intent, E-E-A-T, Google spam policies), and the accuracy/legal layer — claim substantiation, FTC Endorsement Guides (2023) and the Consumer Reviews Rule (2024), testimonial consent, dark-pattern avoidance, and email-marketing law (CAN-SPAM, GDPR consent). Use when writing or reviewing ANY outward-facing content.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add martinholovsky/sota-skills/sota-copywriting@git:20260708.1a1eff6
Exact content
mdr add martinholovsky/sota-skills/sota-copywriting@sha256:2704bdac73aa5b6c

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_sl5i3hp37t3ho73u.svg)](https://markdownregistry.com/a/art_sl5i3hp37t3ho73u)

0 badge views in 30 days

Versions

versioncommittedcommitsizeaudit
git:20260708.1a1eff6 latest2026-07-08 1a1eff6 7,569 BA view · diff
git:20260702.7b662092026-07-02 7b66209 7,484 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (7569 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

martinholovsky/sota-skills · 18 stars · license CC-BY-4.0 · pushed 2026-09-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_sl5i3hp37t3ho73u
GET https://markdownregistry.com/api/v1/resolve?ref=martinholovsky/sota-skills/sota-copywriting
GET https://markdownregistry.com/api/v1/blob/2704bdac73aa5b6c3864cd5024777ccf1a890c2a11dbd1fc1cc18d30a9adea3c