coreyhaines31/marketingskills · skills/copy-editing/SKILL.md

copy-editing skillA

copy-editing is agent-read markdown (skill) from coreyhaines31/marketingskills: When the user wants to edit, review, or improve existing marketing copy, or refresh outdated content. Also use when the user mentions 'edit this copy,' 'review my copy,' 'copy feedback,' 'proofread,' 'polish this,' 'make this better,' 'copy sweep,' 'tighten this up,' 'this reads awkwardly,' 'clean up this text,' 'too wordy,' 'sharpen the messaging,' 'refresh this content,' 'update this page,' 'this content is outdated,' or 'content audit.' Use this when the user already has copy and wants it imp.

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 coreyhaines31/marketingskills/copy-editing@v2.0.0
Exact content
mdr add coreyhaines31/marketingskills/copy-editing@sha256:9b5a20be3dc5513c

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_nc6rjp7p5qilzmn2.svg)](https://markdownregistry.com/a/art_nc6rjp7p5qilzmn2)

0 badge views in 30 days

Versions

versioncommittedcommitsizeaudit
v2.0.0 latest2026-05-14 30f9b9a 15,000 BA view · diff
v1.3.02026-04-04 4874fe8 16,259 BA view · diff
v1.2.02026-04-04 d88009d 15,529 BA view · diff
v1.1.02026-03-04 e4283c6 13,426 BA view · diff
v1.1.02026-02-27 f5badfe 13,287 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 (15000 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

coreyhaines31/marketingskills · 47,562 stars · license MIT · pushed 2026-09-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_nc6rjp7p5qilzmn2
GET https://markdownregistry.com/api/v1/resolve?ref=coreyhaines31/marketingskills/copy-editing
GET https://markdownregistry.com/api/v1/blob/9b5a20be3dc5513c8f0b4f4c4960857e4d28ed83698a5b33c8dde9dc75a47bf6