diff --git a/Codex/README.md b/Codex/README.md
index 0622718..e3010d2 100644
--- a/Codex/README.md
+++ b/Codex/README.md
@@ -4,19 +4,20 @@ Codex is the repo-specific execution layer for active work.
 
 Purpose:
 - keep `zlh-grind` root focused on platform-wide context
-- track API, Portal, and Agent work separately
+- track API, Portal, Agent, and Monitoring work separately
 - make it easier to remove completed items instead of letting them linger in one shared backlog
 
 Use this structure:
 - `Codex/API/*` for `jester/zpack-api`
 - `Codex/Portal/*` for `jester/zpack-portal`
 - `Codex/Agent/*` for `jester/zlh-agent`
+- `Codex/Monitoring/*` for monitoring host / observability coordination
 
 File roles:
-- `README.md` — front door for that repo track
-- `CURRENT_STATE.md` — what is actually implemented now
-- `OPEN_ITEMS.md` — only unfinished work
-- `DECISIONS.md` — important settled choices / do-not-re-litigate notes
+- `README.md` - front door for that repo track
+- `CURRENT_STATE.md` - what is actually implemented now
+- `OPEN_ITEMS.md` - only unfinished work
+- `DECISIONS.md` - important settled choices / do-not-re-litigate notes
 
 Operational rules:
 - remove completed items from `OPEN_ITEMS.md` promptly