The answer
io.github.Alepha188838884/context-firewall
Top verified match: it matches your intent, corroborated across multiple registries.
fresh · published 52d ago · verified 2026-08-08tested · static-verifiedsigned passport ✓score 41/100
claude mcp add context-firewall -- npx -y context-firewall
Runners-up
- context-firewallnot yet verified8/100 · weaker match
- Yagami AI Context Firewall41/100 · weaker match