VibeDefend by CybeDefend - The one command line to secure your Cursor and Claude Code
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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.
Replies
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!
fun fact: 81% of the community is a 'human-in-the-loop' type of developer, according to this thread.
@axel_paulin i think the main concern for us is data leakage and accidental secret exposures when agents auto-commit. best of luck for launch
@vikramp7470 Hey Vikram, thanks for the support! 🙌
You hit the nail on the head. Accidental secret exposure and data leakage are the exact nightmares keeping engineering leaders from adopting fully autonomous agents. Agents are incredibly fast, but they often lack the contextual awareness of what is sensitive.
This is exactly what CybeDefend is built to prevent. Because we operate at the "Shift-0" level (intercepting right at the generation phase, before any auto-commit), we act as a hard boundary. If an agent tries to leak a secret, push PII, or bypass a core security rule, we instantly block that specific dangerous action in real-time, without breaking the rest of the agent's workflow.
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.
@cybedefend @florentin_ledy If this actually works as seamlessly as describe it’s a total game changer for our workflow. congrats team for second launch🙌
yes, it does! one command line to secure your AI coding agent -- @Cursor, @Claude Code, or else:
@priya_kushwaha1 Thank you Priya! This one is about a single idea the agent already knows how to code, what it lacks is your context, the rules that live in your repo and in your engineers' heads. If you try it on one project, tell us which rule it caught first, that's the story we love hearing :) If you want the five-minute version first: cybedefend.com/en/blog/secure-app-in-5-minutes-ai-agent
this 👆 and friendly reminder: testing @CybeDefend takes a couple of minutes, it's free, no card needed, and if you go further, WELCOME50 gets you 50% off your first month.
cybedefend.com
Hey! Solid launch! I wonder how can I integrate this application into my current setup
@matheus_paranhos1 Hey Matheus, thanks a lot for the support! 🙌
Integration is actually designed to be super straightforward. You can check out the step-by-step guides for different environments right here in our documentation: https://docs.cybedefend.com/latest/api-reference/introduction
To point you in the exact right direction, I'd love to know a bit more about your current setup!
Let me know, I'd be happy to walk you through how it would fit perfectly into your workflow! 🚀
@matheus_paranhos1 @axel_paulin You'll also find all the native integrations we offer here, and I'm happy to help if you need anything:
https://www.cybedefend.com/en/integrations
@axel_paulin @florentin_ledy Looking good! Having support for codex could also be extra useful there!
@florentin_ledy @matheus_paranhos1 We actually already support OpenAI Codex just as seamlessly as Claude.
@julien_zammit wrote a deep dive on Codex security risks and best practices if you want to take a look: https://www.cybedefend.com/fr/blog/openai-codex-security-risks-best-practices
Hey, what an amazing idea ! Is it easy to integrate to any project ?
@louis_goudal Thank you so much! 🙏
Yes, it's a single command:
The installer walks you through it: pick your region (EU or US), sign in, and it auto-detects the agents you have installed (Claude Code, Cursor, Codex, Windsurf, VS Code Copilot) and wires them up. It works on macOS, Linux and Windows.
You can try it for free, no credit card required. Let me know how it goes!
adding here that if you go further, WELCOME50 gets you 50% off your first month: cybedefend.com
@louis_goudal It installs on the agent and not on the project, with one npx command, then you link a repo by dropping its project id in a small config file at the root. The docs walk through it: docs.cybedefend.com/latest/agent-ai-integration/vibedefend
The rm -rf and secrets guard is what really sealed the deal for me. All other tools scan after the problem happens; this stops it in its tracks. Today’s product would really enable us to reach the right people.
@hamza_aafzal Out of curiosity, which coding agents (Cursor, Claude Code, etc.) are you currently experimenting with ?
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.
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.
It's free to start, no card: cybedefend.com
Tell me what your agent did last week that scared you, I'm here all day to answer!
The State of Vibe Coding 2025 report [1] highlighted 3 types of vulnerabilities: exposing secrets, access misconfigurations, hardcoded credentials. Do you share this opinion? or have you found more patterns based your user interviews and research?
[1] The State of Vibe Coding 2025 in /p/vibecoding
@fmerian Those three for sure, and secrets are the easiest to stop, the guard refuses the read of a .env before the value ever reaches the agent's context. I'd add the rule that only lives in someone's head, like 'an invoice can't be edited once it's sent', where the code is clean and every scanner passes it. That one has to reach the agent before it writes the endpoint, which is what we built VibeDefend around. More on that family of bugs: cybedefend.com/en/blog/business-logic-flaws-ai-generated-code
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.
You can grab your spot right here: https://www.cybedefend.com/en/webinar
Would love to see some of you there! Let me know if there are specific questions you'd like us to ask him. 👇
to clarify, is the workshop more aimed at developers evaluating whether to adopt @CybeDefend, or hands-on for people already building with it?
asking for a friend
@fmerian Haha, great question! Tell your "friend" it’s definitely the first option. 😉
Since we have Jason Lee joining us, the session is highly strategic. It's not a hands-on product tutorial, but a deep dive into the real-world risks of AI agents, DevSecOps best practices, and the "Shift-0" methodology. It’s perfect for engineering and security leaders figuring out how to scale these tools safely, whether they end up using CybeDefend or building their own internal guardrails. They will walk away with actionable insights!
@julien_zammit @florentin_ledy and @axel_paulin good start and it says something about your confidence in the product when all of you are responding to comments with actual facts rather than talking points. The line I found compelling was "the rule you never wrote down" as this is the true failure case for most teams, not the vulnerability that is scanned for.
@dhiraj_roy1 Thanks for noticing! We built this for engineers, so facts over fluff is our baseline.
You nailed the exact problem. Standard tools catch standard bugs. The real danger is the implicit business logic living only in a senior developer's head. Agents fail hard there because they lack context.
This is why our repo miner extracts those unwritten rules and turns them into hard boundaries before the agent even starts coding.
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!
are you using existing security tools already? would love to know more about your experience
also curious what's your preferred AI coding agent? anything they did that scared you lately?
@mufassir_kazi Glad they help! They mostly answer one question, and the honest answer is that you keep the scanner you already run and add the part that lives inside the agent, the rules before each edit and the guard on each tool call. They're all here for the side by side: cybedefend.com/en/compare