diff --git a/docs/web-ui/dashboard.md b/docs/web-ui/dashboard.md
index ea025855..a6ec9f87 100644
--- a/docs/web-ui/dashboard.md
+++ b/docs/web-ui/dashboard.md
@@ -477,7 +477,9 @@ fetch entirely.
   `links` (nav strip entries — `📊 stats`, `🖥 screen` when GUI is
   enabled, `⬡ forge profile`, `↳ agent-configs mirror`, plus any
   agent-declared `dashboardLinks` extras), `status_text` /
-  `status_set_at` (agent self-reported status), `rate_limited`,
+  `status_set_at` (agent self-reported status — the `(set N ago)`
+  chip is stamped `data-set-at` and ticks every 30s to stay fresh
+  across the long-lived keyed row cache), `rate_limited`,
   `ctx_tokens` / `context_window_tokens` (context-window badge
   data). The agent backend is the single source of truth for all
   of these. The dashboard resolves each `AgentLink.kind` against a