CO-STAR Framework

A comprehensive, multidimensional framework designed to maximize context, relevance, and output precision for complex requests.

Prompt Template

# CONTEXT #
{{Context:Describe the background situation}}

# OBJECTIVE #
{{Objective:Define the specific goal}}

# STYLE #
{{Style:Define the writing style (e.g., journalistic, academic)}}

# TONE #
{{Tone:[tones]}}

# AUDIENCE #
{{Audience:Who is this for?}}

# RESPONSE FORMAT #
{{Format:Markdown, JSON, Bullet points, etc.}}

How Variables Work

Variable Syntax

Variables are wrapped in {{ and }} and follow this pattern:

{{variable name: option1, option2, option3 }}

Predefined Variables

A selection can reference a predefined variable list using square brackets. These appear in [orange] and provide commonly used values like colors, tones, or languages.

{{Tone: [tones] }}

Custom Selection Lists

You can also provide an inline list of choices separated by commas.

{{Format: bullet points, paragraphs, numbered list }}
💡

Tip: You don't need the PUCO app to use these prompts! Simply copy the template and replace each {{…}} section with your own text directly in ChatGPT, Claude, Gemini, or any other AI assistant.

Use this prompt in seconds — not minutes

Install PUCO for Mac: press a hotkey in any app, fill a smart form, paste into ChatGPT, Claude or Gemini. Every variable becomes a curated dropdown. Your last values are remembered.

Download on the Mac App Store