shroominic · Sep 14, 2026 · Sep 14, 2026 · Sep 14, 2026 · Sep 14, 2026
@@ -10,6 +10,13 @@ expectations are defined in [docs/compatibility.md](docs/compatibility.md).
 
 ## [Unreleased]
 
+### Added
+
+- The dashboard can show a local-only, dismissible sharp-rise walk nudge when
+  fresh, non-provisional readings form a narrowly bounded monotonic rise. It
+  fails closed for unsafe sensor state, stale, sparse, malformed, low, or high
+  readings; it is wellness guidance, not an alert, diagnosis, or treatment.
+
 ## [0.1.6] - 2026-08-31
 
 ### Added

@@ -0,0 +1,22 @@
+# R2 traceability: sharp-rise walk nudge
+
+- **Owner:** `@shroominic`
+- **Risk class:** R2 — health-derived behavioral guidance
+- **Scope:** A deterministic, in-app-only wellness nudge for a fresh,
+  in-range, monotonic glucose rise. It uses no new dependency, persistence,
+  cloud flow, notification, sensor command, or schema.
+- **Safety controls:** The detector fails closed for warmup; non-ready or
+  disconnected state; health error, malfunction, signal loss, or expiry;
+  stale, provisional, non-finite, or untimestamped input; sparse, falling, or
+  insufficient traces; and current values outside 100–179 mg/dL. Red remains
+  reserved for safety alerts. The copy contains no diagnosis, dosing,
+  treatment, emergency instruction, or native-alert replacement.
+- **Privacy:** It processes current local controller state only. Dismissal is
+  recurring and exists only for the active controller run.
+- **Recovery:** Revert the focused feature commit to remove the detector,
+  nudge, hero badge, chart-tail presentation, and demo fixture together. No
+  stored migration or remote rollback is required.
+- **Release controls:** Require independent review by the accountable owner,
+  deterministic regression evidence, and staged demo evidence before merge or
+  release. Capture redacted phone-width visual evidence on a loopback-capable
+  host; the repository's physical-device exception does not waive that review.
@@ -814,6 +814,18 @@
   "messageWarmupBody": "Your sensor is settling in. Readings begin after about an hour — no action needed.",
   "messageTapReadingTitle": "Tip",
   "messageTapReadingBody": "Tap a point on the chart to see the exact reading and time.",
+  "messageSharpRiseTitle": "↑↑ Glucose is spiking",
+  "messageSharpRiseChange": "Up {change} mg/dL in {minutes} minutes",
+  "@messageSharpRiseChange": {
+    "placeholders": {
+      "change": {"type": "int"},
+      "minutes": {"type": "int"}
+    }
+  },
+  "messageSharpRisePrompt": "If walking is safe for you, take a short walk now and watch how your glucose responds.",
+  "sharpRiseBadge": "Sharp rise",
+  "sharpRiseNudgeSemantics": "Sharp rise wellness nudge",
+  "sharpRiseChartTailSemantics": "Sharp rise chart tail",
   "scenarioWarmup": "Warmup",
   "scenarioActiveNormal": "Active — normal",
   "scenarioActiveHigh": "Active — high (alert)",

@@ -814,6 +814,18 @@
   "messageWarmupBody": "传感器正在稳定。大约一小时后开始显示读数，无需操作。",
   "messageTapReadingTitle": "提示",
   "messageTapReadingBody": "点按图表中的数据点可查看准确读数和时间。",
+  "messageSharpRiseTitle": "↑↑ 血糖正在快速上升",
+  "messageSharpRiseChange": "{minutes} 分钟内上升 {change} mg/dL",
+  "@messageSharpRiseChange": {
+    "placeholders": {
+      "change": {"type": "int"},
+      "minutes": {"type": "int"}
+    }
+  },
+  "messageSharpRisePrompt": "如果步行对你来说是安全的，现在可以短暂步行，并观察你的血糖如何变化。",
+  "sharpRiseBadge": "血糖快速上升",
+  "sharpRiseNudgeSemantics": "血糖快速上升提示",
+  "sharpRiseChartTailSemantics": "血糖快速上升图表尾段",
   "scenarioWarmup": "预热",
   "scenarioActiveNormal": "正常运行",
   "scenarioActiveHigh": "运行中——高值（提醒）",

@@ -2563,6 +2563,42 @@ abstract class AppLocalizations {
   /// **'Tap a point on the chart to see the exact reading and time.'**
   String get messageTapReadingBody;
 
+  /// No description provided for @messageSharpRiseTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'↑↑ Glucose is spiking'**
+  String get messageSharpRiseTitle;
+
+  /// No description provided for @messageSharpRiseChange.
+  ///
+  /// In en, this message translates to:
+  /// **'Up {change} mg/dL in {minutes} minutes'**
+  String messageSharpRiseChange(int change, int minutes);
+
+  /// No description provided for @messageSharpRisePrompt.
+  ///
+  /// In en, this message translates to:
+  /// **'If walking is safe for you, take a short walk now and watch how your glucose responds.'**
+  String get messageSharpRisePrompt;
+
+  /// No description provided for @sharpRiseBadge.
+  ///
+  /// In en, this message translates to:
+  /// **'Sharp rise'**
+  String get sharpRiseBadge;
+
+  /// No description provided for @sharpRiseNudgeSemantics.
+  ///
+  /// In en, this message translates to:
+  /// **'Sharp rise wellness nudge'**
+  String get sharpRiseNudgeSemantics;
+
+  /// No description provided for @sharpRiseChartTailSemantics.
+  ///
+  /// In en, this message translates to:
+  /// **'Sharp rise chart tail'**
+  String get sharpRiseChartTailSemantics;
+
   /// No description provided for @scenarioWarmup.
   ///
   /// In en, this message translates to:

@@ -1593,6 +1593,27 @@ class AppLocalizationsEn extends AppLocalizations {
   String get messageTapReadingBody =>
       'Tap a point on the chart to see the exact reading and time.';
 
+  @override
+  String get messageSharpRiseTitle => '↑↑ Glucose is spiking';
+
+  @override
+  String messageSharpRiseChange(int change, int minutes) {
+    return 'Up $change mg/dL in $minutes minutes';
+  }
+
+  @override
+  String get messageSharpRisePrompt =>
+      'If walking is safe for you, take a short walk now and watch how your glucose responds.';
+
+  @override
+  String get sharpRiseBadge => 'Sharp rise';
+
+  @override
+  String get sharpRiseNudgeSemantics => 'Sharp rise wellness nudge';
+
+  @override
+  String get sharpRiseChartTailSemantics => 'Sharp rise chart tail';
+
   @override
   String get scenarioWarmup => 'Warmup';
 

@@ -1378,6 +1378,26 @@ class AppLocalizationsZh extends AppLocalizations {
   @override
   String get messageTapReadingBody => '点按图表中的数据点可查看准确读数和时间。';
 
+  @override
+  String get messageSharpRiseTitle => '↑↑ 血糖正在快速上升';
+
+  @override
+  String messageSharpRiseChange(int change, int minutes) {
+    return '$minutes 分钟内上升 $change mg/dL';
+  }
+
+  @override
+  String get messageSharpRisePrompt => '如果步行对你来说是安全的，现在可以短暂步行，并观察你的血糖如何变化。';
+
+  @override
+  String get sharpRiseBadge => '血糖快速上升';
+
+  @override
+  String get sharpRiseNudgeSemantics => '血糖快速上升提示';
+
+  @override
+  String get sharpRiseChartTailSemantics => '血糖快速上升图表尾段';
+
   @override
   String get scenarioWarmup => '预热';