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Jr-Arch
Coding agent in your repo. Your models, agents & rules.
Jr-Arch is an open-source coding agent built to live inside your repository. Bring your own model and API key instead of being locked to a single provider. Agents, rules, personas, and guardrails are plain files in `.gitagent/`, making them readable, version-controlled, and reviewable. Built around the OpenGAP protocol, with support for major model providers and OpenAI-compatible endpoints, zero runtime dependencies, and no telemetry.
Hey Product Hunt 👋
We’re moving into a world where more and more of software development can be defined with prompts. Agents can write code, reason about tasks, use tools, review changes, and work across an entire repository.
That made me wonder: **why should coding agents themselves be locked inside a specific company's infrastructure, models, and token ecosystem?**
I wanted something where I could be in charge of the agent.
So I built **Jr-Arch**.
With Jr-Arch, you can define your own agents, personas, rules, and guardrails as files inside your repository. You choose the model, bring your own API key, or run a local model. The agent system becomes part of your codebase rather than something completely controlled by a platform.
It's built around the **OpenGAP protocol**, supports multiple model providers and OpenAI-compatible endpoints, and has no telemetry or runtime dependencies.
The idea is simple:
**Your repo. Your agents. Your models. Your rules.**
I built Jr-Arch because I wanted to see what coding agents would look like if the developer, not the platform, was in charge of the agent layer.
It's open source, and I'd genuinely love feedback from people building with AI agents.
What would you want to control if your coding agent was completely yours?
Try it:
`npx jr-arch`
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About Jr-Arch on Product Hunt
“Coding agent in your repo. Your models, agents & rules.”
Jr-Arch was submitted on Product Hunt and earned 8 upvotes and 1 comments, placing #49 on the daily leaderboard. Jr-Arch is an open-source coding agent built to live inside your repository. Bring your own model and API key instead of being locked to a single provider. Agents, rules, personas, and guardrails are plain files in `.gitagent/`, making them readable, version-controlled, and reviewable. Built around the OpenGAP protocol, with support for major model providers and OpenAI-compatible endpoints, zero runtime dependencies, and no telemetry.
Jr-Arch was featured in Open Source (68.9k followers), Developer Tools (520.4k followers) and Artificial Intelligence (479.9k followers) on Product Hunt. Together, these topics include over 227k products, making this a competitive space to launch in.
Who hunted Jr-Arch?
Jr-Arch was hunted by Vivan Rajath. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Jr-Arch stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Vivan Rajath