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AGENTS.md

@@ -252,7 +252,9 @@ median. The precise median is retained, while a half-up 0.1 mm value is used
 for `recommend_ring_size()`; exact midpoint ties prefer the smaller size. Raw
 shot fields remain unchanged. The visible result cards prefer the separate
 `session_recommendation` object. A single footer below the cards reads
-`Based on N measurements. (Please measure at least 3 times for best reliability)`
+`Based on N measurements of your right/left hand. (For best reliability, take
+at least 3 measurements using the same hand.)` The line is left-aligned on
+both web surfaces and matches the following feedback hint's `0.95rem` size.
 The admin Records table preserves its raw-shot columns and adds a separate
 `Session Recommendation` summary column with an on-demand JSON view; legacy
 rows display `—` in that column.

CLAUDE.md

@@ -252,7 +252,9 @@ median. The precise median is retained, while a half-up 0.1 mm value is used
 for `recommend_ring_size()`; exact midpoint ties prefer the smaller size. Raw
 shot fields remain unchanged. The visible result cards prefer the separate
 `session_recommendation` object. A single footer below the cards reads
-`Based on N measurements. (Please measure at least 3 times for best reliability)`
+`Based on N measurements of your right/left hand. (For best reliability, take
+at least 3 measurements using the same hand.)` The line is left-aligned on
+both web surfaces and matches the following feedback hint's `0.95rem` size.
 The admin Records table preserves its raw-shot columns and adds a separate
 `Session Recommendation` summary column with an on-demand JSON view; legacy
 rows display `—` in that column.

tests/test_session_evidence.js

@@ -10,29 +10,29 @@ const source = fs.readFileSync(
 
 function loadHelper() {
   const window = {};
-  vm.runInNewContext(source, { window, Number, Object });
+  vm.runInNewContext(source, { window, Number, Object, String });
   return window.SessionEvidence;
 }
 
-test("formats singular and recommended measurement guidance", () => {
+test("formats singular left-hand evidence and guidance", () => {
   const helper = loadHelper();
   assert.equal(
-    helper.text({ successful_shots: 1 }),
-    "Based on 1 measurement. (Please measure at least 3 times for best reliability)",
+    helper.text({ successful_shots: 1, handedness: "Left" }),
+    "Based on 1 measurement of your left hand. (For best reliability, take at least 3 measurements using the same hand.)",
   );
 });
 
-test("uses the session shot count and keeps guidance after three", () => {
+test("uses the session shot count and identifies the right hand", () => {
   const helper = loadHelper();
   assert.equal(
-    helper.text({ successful_shots: 3 }),
-    "Based on 3 measurements. (Please measure at least 3 times for best reliability)",
+    helper.text({ successful_shots: 3, handedness: "Right" }),
+    "Based on 3 measurements of your right hand. (For best reliability, take at least 3 measurements using the same hand.)",
   );
 });
 
-test("falls back to per-finger counts and hides empty evidence", () => {
+test("falls back to per-finger counts without inventing a hand", () => {
   const helper = loadHelper();
   assert.equal(helper.text({ per_finger: { index: { sample_count: 2 } } }),
-    "Based on 2 measurements. (Please measure at least 3 times for best reliability)");
+    "Based on 2 measurements. (For best reliability, take at least 3 measurements using the same hand.)");
   assert.equal(helper.text({ per_finger: {} }), "");
 });

web_demo/static/mobile/mobile.css

@@ -772,8 +772,8 @@ body {
 }
 
 .finger-count {
-  text-align: center;
-  font-size: 0.85rem;
+  text-align: left;
+  font-size: 0.95rem;
   color: var(--ink-soft);
   margin-top: 8px;
   margin-bottom: 12px;

web_demo/static/shared/session-evidence.js

@@ -23,9 +23,12 @@
     const count = measurementCount(payload);
     if (!count) return "";
     const noun = count === 1 ? "measurement" : "measurements";
-    return `Based on ${count} ${noun}. (Please measure at least 3 times for best reliability)`;
+    const handedness = String(payload && payload.handedness || "").toLowerCase();
+    const hand = handedness === "left" || handedness === "right"
+      ? ` of your ${handedness} hand`
+      : "";
+    return `Based on ${count} ${noun}${hand}. (For best reliability, take at least 3 measurements using the same hand.)`;
   }
 
   global.SessionEvidence = { measurementCount, text };
 })(window);
-

web_demo/static/styles.css

@@ -525,8 +525,8 @@ pre {
 }
 
 .finger-count {
-  text-align: center;
-  font-size: 0.85rem;
+  text-align: left;
+  font-size: 0.95rem;
   color: var(--ink-soft);
 }