Prompt framework course · 6 chapters · 17 min · certificate
CO-STAR Prompt Framework: Write for Any Audience
Context, Objective, Style, Tone, Audience, Response: the framework for anything written for someone else.
What you'll learn
- Explain what each CO-STAR letter means and why it matters
- Write context as facts and objective as a reader action
- Split style from tone and paste one real sample
- Name one audience with knowledge level and worry
- Define response format, length, versions and channel
- Save a reusable CO-STAR template for weekly writing
Chapters
6 chapters · 16:42-
3:29
01Start here Members
Where CO-STAR comes from
This lesson explains what a prompt framework is, where CO-STAR came from, and why the detail you put in each slot matters more than the acronym itself.
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2:52
02C and O Members
Context and Objective
Context gives the model the situation it cannot know, and Objective gives it the outcome the text must achieve, so it stops optimising for sounding good and starts working.
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2:38
03S and T Members
Style and Tone
This lesson teaches that Style is who the writing sounds like and Tone is the emotion it carries, and that pasting one real sample beats any adjective.
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2:18
04A Members
Audience
This lesson teaches you to name one audience, their knowledge level and their worry or goal, so the AI writes for the reader instead of the writer.
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2:54
05R Members
Response: the format you get back
Response defines the shape of the deliverable: length, structure, sections, number of versions, and the named channel, so the AI returns something you can use without reformatting.
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2:31
06Apply it Members
CO-STAR in your job
This lesson turns CO-STAR into a weekly habit: one real piece of writing, every slot filled, weak spots patched, and the prompt saved as a reusable template.
Study guide
Write for Any Audience with CO-STAR
CO-STAR is a prompt framework that turns a vague request into a useful draft. It stands for Context, Objective, Style, Tone, Audience and Response. You fill six short slots before your actual request, and the AI stops guessing. This course teaches each slot in plain English, with examples from real jobs: a reminder email to staff, a LinkedIn post for clients, a short report for a manager who has never used AI.
In the full study guide
- What is a prompt framework?
- Where CO-STAR comes from and why it works
- Context and Objective: the situation and the target
- Style and Tone: the voice and the feeling
- Audience: write for the reader, not the writer
- Response: the shape you get back
- CO-STAR in your job: from one prompt to a weekly habit
- 5 frequently asked questions
The full study guide is for members, with the course, the exam and your certificate.Get the full course
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