Best AI skills for content marketing (2026)
Updated October 2026. Each skill below was read from its own SKILL.md on GitHub on 18 October 2026.
Content marketing is a loop. You decide what to say, you write it so someone reads past the first line, you send it to the people who asked for it, and you cut it into pieces for the places where new readers are. Most AI help today covers only the middle: "write me a blog post". The four free skills below on AgentAlley each take one step of the loop, so you can pick the step where you lose the most time.
A skill is a folder with a SKILL.md file that an agent such as Claude Code loads when your request matches it. You install it once, then ask in plain words.
1. Plan: content-strategy
content-strategy by coreyhaines31 (MIT) answers the question "what should I write about?". Its description lists content ideas, blog strategy, topic clusters, content pillars, an editorial calendar and a content roadmap. It points to sibling skills for the next steps: copywriting for single pieces and an SEO audit skill for search checks.
Good for: a team or solo founder who publishes but cannot say why each piece exists.
The catch: a plan is only as good as what you tell it about your audience and product. Give it real customer questions, not guesses.
2. Open: copywriting-hooks
copywriting-hooks by samber (MIT) does one narrow thing well: the first lines and titles of long-form posts, in English or French. Its method starts from the idea that a hook has one job, making the reader want the second sentence, and it names five ways to do that: open a gap, break a prediction, drop into a scene, promise a payoff, or borrow weight from a name or quote. It then carries a catalog of 18 hook types.
Good for: a draft whose body is fine but whose opening is flat.
The catch: its description says it is not for social posts, email subject lines, ad copy or landing-page headlines. It also points to a separate skill for calls to action at the end.
3. Send: newsletter
newsletter is from the cwinvestments memstack collection. It produces a newsletter edition with subject line formulas, a section structure, link placement and growth ideas. It also has a "common mistakes" table, such as treating a newsletter as company news, or putting too many links in one section.
Good for: someone who sends a weekly or monthly email and wants a repeatable shape.
The catch: the license line in its own SKILL.md names a proprietary MemStack Pro license, which differs from what the collection listing shows. Read the license in the repo before you use it for client work. Its "common mistakes" table also quotes open-rate numbers without a source, so treat those as the author's view, not data.
4. Spread: social
social by coreyhaines31 (MIT) covers social content for LinkedIn, X, Instagram, TikTok and Facebook: posts, threads, carousels, short video scripts, repurposing and social listening. Before writing, it checks for a product marketing context file in your project, and it walks through goals, audience, brand voice and resources. Its description also says posts should avoid common AI tells.
Good for: turning one article or newsletter into a week of posts.
The catch: it can schedule and listen only through tools you connect. Out of the box it drafts; you still post.
How they fit together
- content-strategy picks the topic.
- copywriting-hooks writes the opening and title of the main piece.
- newsletter sends it to your list.
- social cuts it into posts.
Two of the four come from the same author, so they already point at each other. The other two drop in at their step.
What no skill does for you
None of these know your customers. The plan, the hook and the post all get better when you paste in real questions from real buyers. Check every fact and number before you publish; an agent will happily write a confident sentence that nobody can back up.
Install
Open the item page, check the license and the files, and follow the install steps there. For the general flow, read how to install a skill.