Runtime Defense Against Prompt Injection in Supabase MCP

Show HN: Runtime Defense Against Prompt Injection in Supabase MCP

Runtime Defense Against Prompt Injection in Supabase MCP is a company in show hn launch.

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I wrote this after studying the Supabase MCP prompt injection issue. The blog shows how I built a working defense using an open-source AI agent runtime I’ve been building called Tansive ( https://github.com/tansive/tansive )Instead of just filtering malicious prompts, I implemented role-based policies with runtime input validation that can scale across combinations of different AI tools (GitHub, Stripe, Linear, etc.).All the code referenced in the blog is in the examples/supabase_demo folder.I welcome your feedback — especially from folks working with AI toolchains or security.

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Website: docs.tansive.io/blog/implementing-defense-prompt-injection-attacks-mcp