VibeDefend installs on your AI coding agent (Claude Code, Cursor, Windsurf, Copilot, Codex and more) with one command. From then on the agent writes with your business rules, mined from your repo, and your security rules in its context. It scans each diff while the file is still open, and a guard refuses rm -rf, sudo or a read of your secrets before it runs. Scanners check code after the commit, this runs before the line is written. Free plan, no card.
the 88% to 89% jump is the number I'd want more detail on, not because it's small, but because it implies 11% of cases still slip through even with the agent governed at write-time. what does that residual 11% look like in practice, is it mostly novel command patterns your ruleset hasn't seen yet, or edge cases where the agent works around the guard through a legitimate-looking path (like writing to a file that gets executed later instead of running the command directly)?
Being on the AWS marketplace makes procurement so much easier, smart move 🙃
Mining rules from the repo worries me a bit on older codebases. I audited one last month where four different places decided who counts as an admin, and they disagreed: two lower cased the email, two didn't. "Most consistent convention" there is a two against two tie, and either winner is a bug.
Does the miner flag contradictions like that for a human, or pick one? I'd rather get the list of disagreements than the rules.
What if there is a conflict between the security directive and the instruction from the developer to the agent? Btw, Congratulations Team VibeDefend by CybeDefend ✌️
Hey! Solid launch! I wonder how can I integrate this application into my current setup
great to have new security products in the devtools space. I love that you have dedicated comparison pages for existing tools - really easy to differentiate. kudos on the launch!
Quick update for the community! 📣
Seeing all the great discussions today in the comments about the risks of AI coding agents (like data leakage and compliance rules), I thought this would be the perfect place to share an upcoming event we are super excited about.
We’re hosting a live webinar with Jason Lee (former CISO at Zoom, Splunk, and F5) entirely dedicated to the security of AI coding agents. We'll be diving deep into how engineering teams can actually scale these autonomous tools safely without giving the security team a heart attack.
If today's launch caught your interest and you want to dig deeper into the topic with a top-tier cybersecurity expert, we'd love to have you join the conversation.
Would love to see some of you there! Let me know if there are specific questions you'd like us to ask him. 👇
Does the secrets scanner also check files that are generated or modified indirectly by the coding agent?
Can teams define their own blocked commands based on their internal security policies?
Does the agent get the security feedback immediately so it can fix the issue in the same coding session?
How much control do teams have over the business rules mined from the repo?
Hey Product Hunt ! 👋 I’m Axel, the third co-founder, handling Growth and Go-To-Market here at CybeDefend
@julien_zammit shared our origin story, and @florentin_ledy highlighted the tech. I want to talk about what happens when you actually put VibeDefend in the hands of a dev team.
When we ran our study, we found something crazy: left to their own devices, AI agents ignored internal business and compliance rules in 88% of cases. They write fast, but they accumulate silent technical debt just as quickly.
By governing the agent at the exact moment the code is written (an approach we call "Shift-0"), VibeDefend brings that rule compliance up to 89%.
It’s not just a security tool; it’s an enabler. It allows your team to confidently scale "vibe-coding" without the CISO or the Lead Dev losing sleep over what’s being shipped to production.
I’ll be hanging out in the comments all day with the team. I'd love to know: what is the main risk keeping your team from giving full autonomy to AI coding agents right now? Let's chat!
Hey Product Hunt 👋
I'm Julien, one of the three co-founders of CybeDefend with Florentin and Axel. We're in our mid-twenties and we started the company in Lille in January 2025. Every vibe-coded app I scanned was hackable in five minutes, and that is the problem we work on every day.
The idea we started with is that security should speed you up, not stand in your way. AI agents now ship thousands of lines a day and a human can't read all of it, so we moved the check to the place where the code gets written.
VibeDefend plugs into your agent with one command. It gives the agent your business rules, mined from your repo, and your security rules before it writes a line, scans each diff while the file is still open, and stops rm -rf, sudo or a read of your secrets before they run.
We want every line an AI agent writes to already follow your rules, including the ones you never wrote down.
Tell me what your agent did last week that scared you, I'm here all day to answer!
Hey Product Hunt 👋 Florentin, one of the three co-founders with Julien and Axel. I lead product vision and tech.
Quick one from the tech side. The bugs that scare me most in AI-written code aren't injections, scanners already catch those. It's the agent happily shipping an endpoint where user A can read user B's data, because nobody ever told it that rule. That's why VibeDefend mines your business rules from your repo and puts them in the agent's context before it writes.
Testing it takes a couple of minutes and it's free, no card needed. If you go further, WELCOME50 gets you 50% off your first month: cybedefend.com
And please, tell us everything: what you love, what annoys you, what's missing. We genuinely love collecting feedback and shaping the product around what you actually need.
npx -y @cybedefend/vibedefend@latest install
this just makes so much sense. security is an everyone problem, and @CybeDefend makes it a no brainer.
s/o ?makers for the great work on this new launch.
About VibeDefend by CybeDefend on Product Hunt
“The one command line to secure your Cursor and Claude Code”
VibeDefend by CybeDefend launched on Product Hunt on September 28th, 2026 and earned 226 upvotes and 63 comments, placing #4 on the daily leaderboard. VibeDefend installs on your AI coding agent (Claude Code, Cursor, Windsurf, Copilot, Codex and more) with one command. From then on the agent writes with your business rules, mined from your repo, and your security rules in its context. It scans each diff while the file is still open, and a guard refuses rm -rf, sudo or a read of your secrets before it runs. Scanners check code after the commit, this runs before the line is written. Free plan, no card.
VibeDefend by CybeDefend was featured in Developer Tools (520.2k followers), Security (2.9k followers) and Vibe coding (682 followers) on Product Hunt. Together, these topics include over 92.9k products, making this a competitive space to launch in.
Who hunted VibeDefend by CybeDefend?
VibeDefend by CybeDefend was hunted by fmerian. 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.
Reviews
VibeDefend by CybeDefend has received 3 reviews on Product Hunt with an average rating of 5.00/5. Read all reviews on Product Hunt.
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fmerian
the 88% to 89% jump is the number I'd want more detail on, not because it's small, but because it implies 11% of cases still slip through even with the agent governed at write-time. what does that residual 11% look like in practice, is it mostly novel command patterns your ruleset hasn't seen yet, or edge cases where the agent works around the guard through a legitimate-looking path (like writing to a file that gets executed later instead of running the command directly)?