Substack Publishing

Q: What is a Claude Code skill and how does the Substack Publishing skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Substack Publishing is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Content category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Content · Sub-category: writing · Last updated: 2026-08-08

完成・レビュー済みの human essay を Substack に公開し、LLM 発見のために corpus へミラーするワークフロー。Substack が raw Markdown 非対応なための MD→HTML rich-text paste、Title/Subtitle/body のフィールド分け、タグ戦略（archive 用 ≠ 拡散用）、カバー画像プロンプトの作り方、Claude in Chrome によるエディタ自動操作（OS クリップボードへの HTML flavor 直接セット + cmd+V）、公開後の content repo `substack/` フォルダへのミラー + research repo からの cross-link、公開後の配信ファネル運用（Notes 3 型・organic recommendations・welcome email・ケイデンス）を扱う。Voice / AI-slop / Title / 出典は writing-ecosystem、翻訳は ja-to-en-translation に defer。essay を Substack に出すとき・Substack の配信運用を考えるときに使う。

Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

レビュー済みの human essay を Substack に公開し、LLM に発見されるよう corpus へミラーするまでの手順。執筆・レビュー・翻訳は別 skill が担い、本 skill は Substack 固有の公開機構と公開後のミラー / cross-link だけを扱う。

What this skill does

Substack Publishing is a community-contributed Claude Code skill in the writing sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/substack-publishing/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Substack Publishing Claude Code skill is built for content creators, marketers, copywriters, SEO professionals, and editorial teams. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 178,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/substack-publishing
curl -L https://claudskills.com/skills/substack-publishing/SKILL.md \
  -o ~/.claude/skills/substack-publishing/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/substack-publishing/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/substack-publishing/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\substack-publishing\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Substack Publishing Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/substack-publishing/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Substack Publishing skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Substack Publishing skill?

Use Substack Publishing when your Claude Code task falls under the Content category — specifically in the writing area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Substack Publishing" or describe the task and let Claude pick). Browse related skills at /category/content/.

What is a Claude Code skill and how does the Substack Publishing skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Substack Publishing is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Content category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/shimo4228/claude-harness/blob/HEAD/skills/substack-publishing/SKILL.md
License: MIT
Author: shimo4228

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

shimo4228. (2026). Substack Publishing [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/substack-publishing/

BibTeX

@misc{substack-publishing-2026,
  author    = {shimo4228},
  title     = {Substack Publishing [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/substack-publishing/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/substack-publishing.svg)](https://claudskills.com/skills/substack-publishing/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-08-08 — free static scan against the OWASP Agentic Skills Top 10.

The scan flagged 1 of 10 categories (network), including lower-severity patterns. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
⚠ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/substack-publishing/#security)