Show HN: Conduct, open-source guardrails for LLM and MCP tool calls

Conduct is an open-source tool providing runtime governance for AI agents, enforcing policies across LLM calls, shell tools, and AI sessions. It includes a Router (proxy), Compliance packs, Canvas UI, Playbook DSL loader, and a Playbook library with 22 pre-built playbooks. Conduct ships with over 20 compliance packs, including OWASP, SOC 2 CC7.3, HIPAA §164.312, PCI DSS 4.0, EU AI Act Art. 15/16, NIST AI RMF, ISO 42001, and framework-specific packs for Python, Node, and Terraform.