Costar

GPTClaudeDeepSeek··▲ 1,342 copies·updated 2026-07-14

costar.prompt

# COSTAR Structure

## Trigger

COSTAR is a framework that offers a structured approach to prompt creation.
Use this when the user wants a structure or template.

## Instructions

Documented in
[Unlocking the Power of COSTAR Prompt Engineering: A Guide and Example on converting goals into system of actionable items](https://medium.com/@frugalzentennial/unlocking-the-power-of-costar-prompt-engineering-a-guide-and-example-on-converting-goals-into-dc5751ce9875)
by [Frugal Zentennial](https://medium.com/@frugalzentennial),
COSTAR is a framework that offers a structured approach to prompt creation.
The suggestions have been modified slightly to be clean [Markdown](https://www.markdownguide.org/).

### Structure

The structure of the COSTAR framework follows:

when to use it

Community prompt sourced from the open-source GitHub repo ibuchanan/forge-rovo-metaprompting (Apache-2.0). A "Costar" style prompt — adapt the placeholders and specifics to your task. Imported as-is and not independently retested here, so check the output before relying on it.