#5485 "A rule's page waits up to 25 s for its metric preview: a cold 24 h series read from plugin_metrics". Opening "Agent offline" took 25.6 s; a cold day of one series measured 18.3 s over MCP, a warm one 63 ms. The pickers still come with the page from plugin_metric_latest; the preview is its own request (hx-trigger=load), showing "Reading the last day…" until it lands. Picker swaps no longer read it either. #5486 "Send test where it can be found": the button moves from inside "What happens" to the page header beside History, its result under the verdict. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>