Countersign as MCP tools — the cross-vendor kill switch + spend guard inside any MCP client (Claude, Cursor, …).
Verification confirms publisher identity (repo ownership), not code safety. The security scan covers known CVEs and suspicious install scripts — it cannot prove the absence of malicious code.
Countersign as MCP tools — the cross-vendor kill switch + spend guard inside any MCP client (Claude, Cursor, …).