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Alternatives

Products that do what Agentic Design Patterns – Python Edition, from the Codex Codebase does

While reading Agentic Design Patterns by Antonio Gulli, I wanted to see how these patterns look in real code. I cloned the OpenAI Codex repo (the open-source AI coding assistant that recently trended on HN) — but it was in Rust. So, I used an Cursor to help me extract and translate 18+ agentic patterns from Codex’s codebase into Python. That small experiment turned into a full open-source guide: GitHub: Codex Agentic Patterns https://github.com/artvandelay/codex-agentic-patterns Each pattern comes with: A short explanation and code sample A runnable exercise and agent…

  1. 1

    AI that writes code for you

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    A command center for working with agents

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    A version of GPT-5 better at agentic coding

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    Parallel custom agents for complex tasks

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    The IDE scratch-built in Rust, now with 100% more agents

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    The visual feedback tool for AI agents

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    Cloud agent for parallel dev tasks, powered by Codex-1

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    Axel271

    Todoist for AI coding agents

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    A web code editor with AI & multi-language support

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    CodeX124

    Build webapps in minutes for completely free

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    Run Claude, Codex & Copilot directly in GitHub & VS Code

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    Agents that ship real code

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  13. 13OC

    Hey HN, I’ve built Open Codex, a fully local, open-source alternative to OpenAI’s Codex CLI. My initial plan was to fork their project and extend it. I even started doing that. But it turned out their code has several leaky abstractions, which made it hard to override core behavior cleanly. Shortly after, OpenAI introduced breaking changes. Maintaining my customizations on top became increasingly difficult. So I rewrote the whole thing from scratch using Python. My version is designed to support local LLMs. Right now, it only works with phi-4-mini (GGUF) via…

    2025 · github.com

  14. 14FA

    Hello! We just released freeact (https://github.com/gradion-ai/freeact), a lightweight agent library that empowers language models to act as autonomous agents through executable code actions. By enabling agents to express their actions directly in code rather than through constrained formats like JSON, freeact provides a flexible and powerful approach to solving complex, open-ended problems that require dynamic solution paths. * Supports dynamic installation and utilization of Python packages at runtime * Agents learn from feedback and store successful code actions as…

    2025 · github.com

  15. 15AU

    Hello hackernews! I'm excited to share a new open source python library I just released for creating AI agent-integrated systems. The name is `agency`. It differs from other agent libraries, most importantly in that it's intended to address a distinct part of the overall problem, that of agent integration. It is not an agent toolchain like LangChain and others. `agency` is a framework intended for safely integrating agents with computing systems and humans in a way that all parties can easily understand and communicate with each other. I've spent a lot of time on the readme which contains a…

    2023 · github.com

  16. 16
    agentcad110

    A CAD design tool for coding agents (free + open source)

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    The power of Codex with local, self-hosted models and voice

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    288 AI agent design patterns, with code that actually runs

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  19. 19
    Flare120

    The graph-first IDE and interactive map for agentic coding

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  20. 20AO

    Hi! I’m Nathan: an ML Engineer at Mozilla.ai: I built agent-of-empires (aoe): a CLI application to help you manage all of your running Claude Code/Opencode sessions and know when they are waiting for you. - Written in rust and relies on tmux for security and reliability - Monitors state of cli sessions to tell you when an agent is running vs idle vs waiting for your input - Manage sessions by naming them, grouping them, configuring profiles for various settings I'm passionate about getting self-hosted open-weight LLMs to be valid options to compete with proprietary closed models. One…

    Jan 2026 · github.com

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    13,000+ MCP servers, skills & plugins for AI coding agents

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  22. 22XA

    Recently several AI labs have published experiments where they tried to get AI coding agents to complete large software projects. - Cursor attempted to make a browser from scratch: https://cursor.com/blog/scaling-agents - Anthropic attempted to make a C Compiler: https://www.anthropic.com/engineering/building-c-compiler I have been wondering if there are software packages that can be easily reproduced by taking the available test suites and tasking agents to work on projects until the existing test suites pass. After playing with this concept by having…

    Feb 2026 · github.com

  23. 23

    The missing curriculum for building reliable AI agents

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  24. 24

    The UX pattern library your AI agent can actually read

    Jun 2026 · patterns.riyaj.in

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