Claude Skills for Writing: Which One for Which Job

Most lists of Claude skills for writing hand you twenty options and no way to choose. The better question is smaller: what's the writing job in front of you right now?

Four jobs cover most of what writers and editors ask Claude to do, and each has a skill that fits:

• Edit a draft you already have → Copy Editing
• Explain dense material to a general reader → Precision-Preserving Plain Language
• Plan short-form video content → TikTok Content Planner
• Keep a house style → build your own with Anthropic's skill-creator

Three more from Anthropic's public skills repository round it out: doc-coauthoring for long structured documents, internal-comms for company updates, and docx when the deliverable has to be a real Word file.

The first three are skills we've already written up in detail, so everything below sticks to what they actually do, and what they refuse to do. The Anthropic ones are described from their own SKILL.md files.

Quick comparison

A licensing note, as of September 2026: the three third-party repositories are MIT-licensed. Most of Anthropic's repository is Apache 2.0, but docx (along with pdf, pptx, and xlsx) is source-available, not open source. Anthropic also labels the whole repository as demonstration and educational material, so test before you rely on it.

If you need to edit a draft: Copy Editing

You wrote the landing page three months ago. The positioning has moved since, and the page reads wordy and vague. You don't need a new page. You need an editor.

Copy Editing is built for that moment. It comes from the skills/copy-editing folder of Corey Haines' marketingskills repository, a collection of marketing skills for Claude, and it's one skill file with no connectors or API keys.

Three things separate it from pasting text into a chat and asking for "better":

• It works only from your material. No invented statistics, no positioning borrowed from someone else's site.
• It labels assumptions and missing evidence. The list of claims your copy hasn't earned is usually more valuable than the rewrite itself.
• It returns next actions. Structured output, not a wall of changes you then have to triage.

It triggers on "this reads awkwardly", "too wordy", "sharpen the messaging", outdated pages, content audits, and proofreading before launch. It's the wrong tool for a blank page. Hand it nothing and it has very little to work with.

If you need to explain something to a general reader: Plain Language

Different scenario. You're the expert. An incident write-up has to make sense to customers, or a design decision needs sign-off from people who won't read the design doc.

Precision-Preserving Plain Language lives in the documentation group of Arjun Prabhulal's agent-skills repository, a set of more than 60 skills. Its rule is to simplify the language and the route through the idea, never the truth. It works in six steps: find what the reader already knows and what they'll do with the text, find the one idea the rest follows from, then replace, teach, or cut each piece of jargon. It closes every analogy by saying where it breaks, rebuilds buried verbs and passive sentences, and keeps the precision that changes decisions. "About 3x faster on reads" doesn't become "faster". "We think" doesn't become "it is".

Then it checks itself twice: where would this reader stop to ask a question, and what here would let them confidently do the wrong thing?

Here's how the two editing skills split, since both take text you already have:

One thing Plain Language explicitly isn't: a skill for removing "AI-sounding" writing. The Taku listing is an adaptation that spells out those scope limits. It doesn't browse, send, publish, or claim the source material is true.

If you plan short-form content: TikTok Content Planner

You write for a brand account, or your own. You have ideas, but your scripts take ten seconds to get to the point, and each week starts from zero.

TikTok Content Planner is adapted from the tiktok-marketing folder of claude-office-skills, a public collection of office and marketing skills. For a writer, the useful part is the script discipline. Every script runs hook, content, then one call to action, with the hook doing its work in the first three seconds. On top of that you get four to six content pillars, templates for common formats, a day-by-day calendar that pairs pillars with hooks and formats, and a weekly review loop covering watch time, engagement, shares, and follows.

The adaptation differs from the original in ways that matter:

The original also carries general posting-time tables and benchmark targets. Treat those as starting points. Your own numbers beat any general table.

If you write long documents or company updates: Anthropic's skills

Three skills from Anthropic's repository cover the structured end of writing.

doc-coauthoring walks you through proposals, specs, and decision docs in three stages: Context Gathering, Refinement and Structure, then Reader Testing. The last stage is the clever one. It tests the draft on a fresh Claude with none of your conversation's context, to catch what a real reader would miss. In Claude Code it does this with sub-agents. On Claude.ai, it asks you to open a fresh conversation and paste the draft in.

internal-comms handles 3P updates (Progress, Plans, Problems), company newsletters, FAQ answers, status reports, leadership updates, project updates, and incident reports. It picks the format from your request, then loads a matching guideline file from its examples folder. Those files are where your company's formats would go.

docx matters when the output has to open cleanly in Word. It creates and edits real .docx files, including tracked changes and comments, which is what an editor returning a marked-up manuscript needs.

If you need a house style: build it with skill-creator

Honest answer first: none of the skills above is a house-style skill out of the box. You have three routes.

1. Adapt Copy Editing. It's a text file of instructions, so you can add your own standards to its review criteria.
2. Pattern a new skill on internal-comms. One short SKILL.md that routes to an example file per format: blog post, newsletter, product update.
3. Build it with skill-creator. It captures what the skill should do, interviews you, writes the SKILL.md, runs test prompts with and without the skill so you can compare, and tunes the description so the skill loads at the right moments.

What goes inside is a normal style guide: preferred spellings, banned words, how you write numbers and dates, tone by channel, and two or three before-and-after examples.

Skip Anthropic's brand-guidelines skill for this. It applies Anthropic's own brand colours and typography, not your voice.

How to choose

Don't install all seven at once. Claude decides which skill to load by reading each description, so a pile of overlapping writing skills makes the right one harder to hit. Start with the one that matches this week's job. For the wider picture beyond writing, our list of the best Claude skills covers the rest of Anthropic's set and the install routes in detail.

Where they run, briefly. In Claude Code, a skill is a folder in ~/.claude/skills/ for every project or .claude/skills/ for one, and Claude loads it when your request matches or when you type its name after a slash. On Claude.ai, skills live under Customize, then Skills, where you upload a skill folder as a ZIP. Code execution has to be on. As of September 2026, Anthropic lists skills on Free, Pro, Max, Team, and Enterprise plans.

Running writing skills without setting up Claude Code

The skills are the easy part. The setup around them is where writers stop: clone a repository, find the right folder among dozens, choose between user and project scope, restart, and confirm it loaded. The Claude.ai route is lighter, but you still download, zip, and upload each folder yourself.

Those routes have real strengths. Claude Code gives you full control. You edit the SKILL.md in place, keep it under version control, and commit it so your whole team gets the same house style. Team and Enterprise plans on Claude.ai let admins provision skills for everyone. If you're comfortable there, stay there.

If you're not, Taku is a different shape. It's an AI-native desktop workspace where you mirror a skill someone already got working, run it on your own drafts, remix its instructions, and keep it. The listed versions of Plain Language and TikTok Content Planner are adaptations with the scope limits described above, so you know what they won't touch. Browse the free app library to see what else is there. Taku is in Beta, and the Mac app is available now.

FAQ

What are the best Claude skills for writing?

It depends on the job. Copy Editing for tightening a draft, Plain Language for explaining technical material to a general reader, TikTok Content Planner for short-form scripts and calendars. From Anthropic, doc-coauthoring for long documents, internal-comms for company updates, and skill-creator for building a house-style skill.

Is there a Claude skill for copy editing?

Yes. The Copy Editing skill from the coreyhaines31/marketingskills repository reviews marketing copy you already have. It flags claims without evidence and returns next actions. It doesn't write from a blank page.

Will these skills make AI writing sound more human?

That isn't their job. Plain Language explicitly excludes removing "AI-sounding" writing, and Copy Editing reviews copy rather than disguising its origin. A house-style skill built with skill-creator is the closest fit if you want Claude's drafts to match your voice.

Can a Claude skill enforce my house style?

Yes, if you write one. Put your style guide, banned words, and a few before-and-after examples into a SKILL.md, or adapt Copy Editing's review criteria. skill-creator can test whether the skill triggers when it should.

Do I need Claude Code to use writing skills?

No. You can upload skills on Claude.ai as a ZIP, or attach them through the Claude API. Claude Code is one route, not the only one.

Are these skills free?

The three third-party skills are MIT-licensed, and most of Anthropic's repository is Apache 2.0, with the document skills source-available. You still need Claude access of your own to run them.