Update README.md

Author: madjeek-web

README.md

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 The entire logic fits in one Python file with fewer than 90 lines of code.
 Every concept, every line, every choice is explained.
 
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 ## Table of Contents
 
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 11. [License](#11-license)
 12. [Contact](#12-contact)
 
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 ## 1. What is this project ?
 
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 There is no magic here. Just Python, one API call per step, and clear comments.
 
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 ## 2. What is an Executive AI ?
 
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 The key insight is that we use the same AI model for both phases. What changes is the system prompt we give it. The AI does not "know" it is an agent. We create that behavior through prompt design.
 
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 ## 3. Core Concepts
 
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 An environment variable is a value stored in your operating system, outside of your code. We use one called `ANTHROPIC_API_KEY` to store the API key. This is the standard practice for secrets. If you write the key directly in your Python file and push it to GitHub, it becomes public. Environment variables prevent that.
 
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 ## 4. Project Structure
 
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 Where to start : open `src/main/executive_ai.py`. That file is the entire project. Everything else supports it.
 
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 ## 5. Prerequisites
 
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 The free tier of the Anthropic API is enough to run this project. A typical execution (5 steps) costs a fraction of a cent.
 
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 ## 6. Installation
 
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 bash scripts/setup.sh
 ```
 
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 ## 7. Usage
 
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 Done. 5 step(s) completed.
 ```
 
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 ## 8. How It Works
 
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 More advanced agents add memory (storing past actions), tool use (calling external APIs), and error recovery (retrying failed steps). Those are the next things to explore once you understand this baseline.
 
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 ## 9. Running Tests
 
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 OK
 ```
 
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 ## 10. Contributing
 
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 - Write tests for the `run()` function using mocking
 - Add support for a second AI provider (OpenAI, Mistral, or Ollama for local models)
 
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 ## 11. License
 
 This project is licensed under the MIT License. See [LICENSE](LICENSE) for the full text.
 
 MIT means : you can use, copy, modify, and distribute this code freely, for any purpose, as long as you include the original license notice. You do not need to ask permission.
 
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 ## 12. Contact
 
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 - [Facebook : Convergence - Human And Technology](https://www.facebook.com/people/Convergence-Human-And-Technology/61578483081894/)
 - [GitHub : Convergence - Human And Technology](https://github.com/Convergence-Human-And-Technology)
 
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 Last updated : 27/03/2026