diff --git a/_INDEX.md b/_INDEX.md
index 4b4ffe4..56db45b 100644
--- a/_INDEX.md
+++ b/_INDEX.md
@@ -32,6 +32,7 @@
 | [Décommission wg-easy (remplacé par Tailscale)](common/wg-easy-decommission-tailscale.md) | 2026-07-08 | wireguard, tailscale, vpn |
 | [Pattern IP sessions Claude-User (mcp-vps/mcp-nas) + incident exposition tokens Gitea](common/mcp-sessions-pattern.md) | 2026-07-12 | securite, mcp, faux-positif, tokens |
 | [Tailscale + NyoraNotes multi-instance — pare-feu DSM par interface, onboarding hermes-nabil / hermes-desktop-yesmine](common/tailscale-firewall-nyora-notes-onboarding-13-08-2026.md) | 2026-08-13 | infra, tailscale, firewall, dsm, nyora-notes |
+| [context-hub — filtrage per-agent du scope infra (bruit mcp-nas retire pour Gemini/Hermes) + purge cle obsolete](common/context-hub-filtrage-scope-par-agent.md) | 2026-08-16 | securite, context-hub, rbac, mcp-nas |
 
 ## common — Stack & fiabilité