What happened
Nightfall AI announced (Sept 9, 2026) early access for MCP Gateway, a governed proxy that intercepts tool calls from Cursor, Claude Code, VS Code and Claude Cowork before execution, brokers credentials with per-tenant encryption, prunes high-risk operations (deletes, DB drops), and audits every call without retaining prompt/response content; also added CLI Data Transfer Protection and MCP Server Visibility scoring.
Why it matters
Extends data-loss-prevention concepts to the developer-AI-agent surface, addressing a governance gap where coding agents have broad system access with no unified oversight.
Applicability
Security teams governing coding-agent and MCP adoption in dev environments should pilot during early access before broader agent-tool rollout.