Show HN: Leakproof – local secret-egress firewall for Claude Code/Cursor/aider

Category: security

Tags: security, secret-detection, ai-assistant, local-proxy, compliance

Score: 6.5/10 (Innovation: 6, Technical: 6, Documentation: 7, Utility: 7)

Leakproof is a local secret-egress firewall for AI coding assistants like Claude Code and aider, intercepting outbound requests to redact or block sensitive data before it reaches the cloud. Its zero-cloud dependency and dual regex/entropy scanning approach offer a novel solution for compliance-bound teams, with a clear comparison to existing tools like detect-secrets.

Target audience: security teams, devops, compliance-conscious developers

Repository: https://github.com/acunningham-ship-it/leakproof · Python · Apache-2.0

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