How do I install Sebastian?

Download the .md file, paste the full contents into Claude Projects Instructions, share your essay question or draft, and Sebastian begins. Works with Claude, ChatGPT, or any AI chat accepting system prompts.

Which AI tools does Sebastian work with?

Works with Claude (recommended), ChatGPT, and any AI chat accepting system prompts. Claude Projects keeps Sebastian loaded throughout your essay or thesis writing process.

Does Sebastian write my essays or help me write better?

Sebastian helps you write better — he does not write your essays for you. He analyses your argument, identifies weaknesses, and gives specific feedback so you develop the skills and produce work that is genuinely yours.

What is included in this download?

One .md skill file delivered instantly after purchase. Paste into Claude Projects Instructions and Sebastian is ready immediately. No subscription required — yours permanently. Works with Claude, ChatGPT, or any AI chat.

AI Academic Writer Skill for Claude & ChatGPT

Q: How does Sebastian help with academic writing?

Sebastian analyses essay questions, develops thesis statements, builds argument flow plans, reviews drafts with specific actionable feedback, improves academic prose without changing your voice, and prepares you for viva questions.

Sebastian develops essay structure, thesis statements, argument flow, and draft feedback inside Claude. Coaching your writing, not replacing it. All disciplines.

Sebastian — Academic Writer AI Skill

$29.00

Sebastian — Academic Writer AI Skill

$29.00

Digital download — instant access

Nothing ships. The moment checkout completes, your download link lands in your inbox. Pay once, keep forever — no subscription, no expiry. Works with Claude, ChatGPT, and any AI chat. Secure checkout handled by Shopify.

Drop Sebastian into Claude and get an Academic Writing coach who analyses essay questions, develops thesis statements, builds argument flow plans, reviews drafts with specific actionable feedback, improves academic register, and helps students become better writers — without writing the essay for them.

Academic writing is a distinct and learnable discipline with conventions around argument structure, evidence integration, citation practice, and critical analysis that nobody explicitly teaches. Sebastian is one of the most developmental AI academic writing tools available in Claude format — built for undergraduate, postgraduate, and doctoral students, and professionals writing for academic publication. He works with your own ideas and sources, not instead of them. He gives 3–5 specific, actionable suggestions per draft review rather than overwhelming feedback — most important issues first. And he asks for the discipline and level before producing specific guidance, because humanities writing conventions differ materially from sciences, social sciences, and law.

What you get

→ Essay planning and argument structure — essay question analysis identifying exactly what is being asked, thesis statement development, argument flow plans (premise → evidence → analysis → conclusion), counterargument planning, and the strongest logical order for presenting a case across introduction, body, and conclusion
→ Draft review and improvement feedback — structural weakness identification, argument development gaps, evidence and analysis balance, paragraph-level revision suggestions using PEEL/TEEL/MEAL models, transitions between sections, and specific actionable improvements prioritised by importance rather than comprehensive overwhelm
→ Academic register and style improvement — formal, objective, and precise language conventions, hedging language for academic claims, nominalisation, passive vs active voice in academic contexts, reduction of colloquialisms and vague expressions, and the move from descriptive to evaluative critical analysis
→ Source integration guidance — how to integrate quotations and paraphrases correctly, when to quote directly vs paraphrase, evidence-centred paragraph structures, the difference between summarising and analysing sources, and developing critical engagement that agrees, disagrees, or extends the argument of each source
→ Tutor feedback interpretation and action plans — translating tutor and supervisor comments into specific writing improvements, understanding marking criteria, and working through the gap between what was written and what the feedback is asking for
→ Discipline-specific writing formats — argumentative, discursive, analytical, and reflective essays, lab reports and scientific writing (IMRaD structure), case study analysis, research proposals, reflective writing, and dissertation chapter structure — calibrated to GCSE, undergraduate, Masters, or doctoral expectations

📄 sebastian-academic-writer.md

Under 2 min install

Works with Claude Sonnet 4 & Claude Cowork

How to install

Download the .md file → open Claude → paste the file content into your system prompt or Project instructions → share your essay question, draft, or the feedback you need to act on, and tell Sebastian your discipline and level → he produces specific developmental guidance instantly. Works with your ideas and sources — does not write essays for submission.

How to install Under 2 minutes

Four steps. Any AI chat.

01
Download the file
After checkout, the download link lands in your inbox. Save the file anywhere on your device.
02
Open your AI chat
Claude, ChatGPT, Gemini, Grok, or Copilot — whichever one you already use.
03
Paste the file contents
Drop it into the system prompt, Project instructions, or custom instructions field.
04
Start working
Your AI is now configured as a specialist. Ask it anything inside its domain.