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Composer

Write LinkedIn and X posts in your own voice with Ghost's Composer: briefs, Idea Studio, post structures, lengths, AI models, refining, media, PDF carousels, mentions and scheduling.

Composer writes LinkedIn and X posts in your voice, from a rough brief or an idea, and schedules them.

Where to find it: sidebar → Content → Composer.

Three ways to start

ModeUse it when
Start with a briefYou know what you want to say: a story, a lesson, an opinion. Ghost shapes it into a post.
Idea StudioYou know the pillar but not the angle. Ghost gives you five different directions.
Write manuallyYou want to write it yourself, add media and schedule it.

Post details

SettingOptions
Content pillarOne of your pillars (required)
Post structureRecommend (Ghost picks the best fit and avoids your recent patterns), Story (moment → turn → lesson), Point of view (belief → evidence → conclusion), Observation (noticing → meaning → invitation), Breakdown (example → analysis → next step)
Voice inspirationMy style (default), Top creator, Lead generation, AI expert, B2B creator, Founder/CEO
Target lengthConcise (80 words), Short (140), Standard (250, recommended), Long (400)
Post briefWhat it's about. Click the mic to dictate.
Match My VoiceApply your voice sliders from Persona hub
AI modelClaude Sonnet 5.5 (default), Claude Opus 5.5, Claude Haiku 5.5, Grok 4.6, GPT-5.6, Gemini 3.8 Flash or Gemini 3.1 Pro. Your choice is remembered.

If you have X switched on in Settings → Account → Content Platforms, choose LinkedIn or X. For X, pick a single tweet or a 3–5 tweet thread, and turn on X Premium for 4,000 characters instead of 280.

If you have more than one LinkedIn profile connected, choose who you're Posting as.

Idea Studio

Pick a pillar and Ghost suggests five different directions, each with a structure, a short brief and an outline (opening, beats, ending). Ideas draw on high-performing posts from the creators Ghost studies. For any idea you can see the outline, get more like this or try another angle, or select it to draft.

Refining a draft

Every generation is kept as a version, so you can go back. To improve a draft:

  • Use the quick buttons: Rewrite opening, Change structure, Make specific, Tighten, Rewrite ending.
  • Or type an instruction, like "make it more casual" or "add a number from our case study". Ghost edits just that part and keeps the rest.
  • Clean up removes formatting left over from pasting or AI.
  • Ghost suggests 3–5 hashtags, which you can add or remove.
  • Type @ to tag a person or company.

Performance analysis

Ghost scores a draft out of 100 on Hook, Proof, Authenticity, Value and Actionability, plus an overall score. It runs when you click Save to Approved, and the score is shown in your Content library. Aim for 70+ across the board.

Media

  • LinkedIn: JPG, PNG, GIF, WebP, or a PDF (shown as a swipeable carousel, with a title you set). Up to 10MB.
  • X: images only.

Video and polls aren't supported.

Save or schedule

ButtonWhat it does
Schedule PostPick a date and time (09:00 by default) and who to post as. Ghost publishes it automatically.
Save to ApprovedReady to go, not scheduled yet
Save DraftKeep working on it later
Discard PostThrow it away

There's no "publish now" button. To post straight away, schedule it a few minutes ahead, or Copy the text. See Content library and scheduling.

Limits

  • LinkedIn posts: up to 2,600 characters. LinkedIn's own limit is 3,000, and the margin stops posts being rejected.
  • AI posts per month: your plan includes a monthly allowance (125 on the standard plan), reset on the 1st. Writing manually doesn't count.

Tips

  • Put a real story, number or opinion in the brief. The more specific the input, the less generic the post.
  • Use Recommend for structure until you know what works for you.
  • Post 3–5 times a week, across all your pillars.