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PreFlight
Stop AI agent from breaking database security & architecture
PreFlight is a local AST-based security gate that guards your codebase against AI hallucinations. AI coding agents often "quietly" skip critical security protocols like Supabase Row-Level Security (RLS) or leak server-only logic. PreFlight parses your code's AST in real-time, mapping your architectural dependencies to catch these structural drifts. Currently in public beta. Open-source, local-first, and built for developers who want to keep the speed of AI without the security debt.
Hey everyone! I’m Avenassh, and I’m incredibly excited to finally share PreFlight with you all.
The Problem:
Like many of you, I've been using AI agents (Claude, Codex etc.) to build faster. But I noticed a pattern: while AI is amazing at scaffolding, it often silently ignores architectural boundaries—like skipping Supabase RLS policies or leaking server-only logic into client components. Standard linters weren't catching these structural "logic" bugs, and I was spending more time auditing AI code than writing it.
The Solution:
I built PreFlight to act as a local, AST-based security gate. It parses your code using Tree-sitter to build a Quantized Code Property Graph, allowing it to "understand" your data flow and architectural constraints. When your AI agent attempts to write code that violates those constraints, PreFlight flags it in real-time.
What I learned:
Building this taught me that we need a new layer of "Governance" for AI coding. We are entering an era of "vibe coding," but we need concrete tools to ensure that speed doesn't come at the cost of security.
PreFlight is currently in Beta and I’m looking for any and all feedback. Have you ever had an AI agent "silently" break your backend or security policies? I’d love to hear about the edge cases you've run into—let's discuss in the comments.
About PreFlight on Product Hunt
“Stop AI agent from breaking database security & architecture”
PreFlight was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #5 on the daily leaderboard. PreFlight is a local AST-based security gate that guards your codebase against AI hallucinations. AI coding agents often "quietly" skip critical security protocols like Supabase Row-Level Security (RLS) or leak server-only logic. PreFlight parses your code's AST in real-time, mapping your architectural dependencies to catch these structural drifts. Currently in public beta. Open-source, local-first, and built for developers who want to keep the speed of AI without the security debt.
On the analytics side, PreFlight competes within Developer Tools, Artificial Intelligence and Security — topics that collectively have 991.2k followers on Product Hunt. The dashboard above tracks how PreFlight performed against the three products that launched closest to it on the same day.
Who hunted PreFlight ?
PreFlight was hunted by Avenassh A.S. 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.
For a complete overview of PreFlight including community comment highlights and product details, visit the product overview.
Avenassh A.S