Show HN: ClawShield – Open-source firewall for agent-to-agent AI communication

**Show HN: ClawShield – Open-source firewall for agent-to-agent AI communication**

Hi HN!I built ClawShield after discovering 40,214 OpenClaw instances exposed with critical CVE-2026-25253 (CVSS 8.8).The problem: AI agents communicate with each other at scale, but there's NO firewall between them. A compromised agent can inject prompts, exfiltrate data, and hijack WebSocket sessions.ClawShield sits between agents and blocks: - Prompt injection (16+ patterns) - Malicious skills/plugins (AST + sandbox) - Credential leaks (regex + entropy) - Unauthorized agent-to-agent comms - WebSocket hijackingBuilt it last night. Open source (AGPL-3.0).GitHub: https://github.com/DEFNOISE-AI/ClawShield Demo: [coming soon]Compatible with OpenClaw, AutoGPT, or any agent protocol.Free tier for personal use, paid for teams/enterprise.Would love your feedback. Comments URL: https://news.ycombinator.com/item?id=47067070 Points: 2 # Comments: 2

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