Readable names: CamelCase product names and words with numbers stay readable

The production dry run of releases:readable flagged 5.37M of 19.8M rows,
and its first sample held real names: "CrossStitcher - Issue 440",
"SchiffsModell", "FastFilms 2.04", "BestCrypt NP v4.0", "SmithsWork",
"Laura15Juli2026". Two CamelCase words with few vowels have four runs and
no lone letter: a scramble now needs five runs, a lone letter or an inner
capital run besides its few vowels; the consonant-run clause is gone
(it counted y); a token whose letter runs are all words or acronyms with
numbers between them is neutral. On a 49k-row production sample the
flagged share went from 27.4% to 26.4% with the letters-only flags all
scrambles; the evaluation sets are unchanged (LOG.md (129)).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

edge/src/names.rs

@@ -1115,7 +1115,7 @@ fn token_signals(t: &[u8]) -> TokenSignals {
     let mut lower = 0;
     for i in 0..t.len() {
         let c = t[i];
-        if c.is_ascii_alphabetic() && !is_vowel(c) {
+        if c.is_ascii_alphabetic() && !is_vowel(c) && c.to_ascii_lowercase() != b'y' {
             consonants += 1;
             s.max_consonants = s.max_consonants.max(consonants);
         } else {
@@ -1181,7 +1181,9 @@ pub fn token_kind(t: &[u8]) -> TokenKind {
             return if n >= 3 { TokenKind::Word } else { TokenKind::Neutral };
         }
         // Mixed case beyond Capitalization: CamelCase (neutral) or a scramble, which has few vowels and short runs.
-        if n >= 6 && s.case_switches >= 2 && (s.inner_upper || (s.vowels * 4 < n && (s.runs >= 4 || s.lone >= 1))) {
+        // Two CamelCase words with few vowels (FastFilms, BestCrypt, SchiffsModell) have four runs and no lone
+        // letter; a scramble has more runs, a lone letter or an inner capital run.
+        if n >= 6 && s.case_switches >= 2 && s.vowels * 4 < n && (s.runs >= 5 || s.lone >= 1 || s.inner_upper) {
             return TokenKind::Random;
         }
         return TokenKind::Neutral;
@@ -1193,6 +1195,14 @@ pub fn token_kind(t: &[u8]) -> TokenKind {
         // 51294P1CUKR2R35X; COD4MW2REMASTERED (4 switches) and BEATLES1964REMASTER (2) stay.
         return if n >= 12 && token_signals(t).switches >= 6 { TokenKind::Random } else { TokenKind::Neutral };
     }
+    // Words with numbers between them (Laura15Juli2026, Back4WinXP): every letter run a word or an acronym.
+    if t.split(|c: &u8| !c.is_ascii_alphabetic()).filter(|w| !w.is_empty()).all(|w| {
+        let vowels = w.iter().filter(|c| matches!(c.to_ascii_lowercase(), b'a' | b'e' | b'i' | b'o' | b'u' | b'y')).count();
+        (w.len() >= 2 && w.iter().all(u8::is_ascii_uppercase))
+            || (w.len() >= 2 && w[1..].iter().all(u8::is_ascii_lowercase) && (w.len() >= 3 || w[0].is_ascii_lowercase()) && vowels * 5 >= w.len())
+    }) {
+        return TokenKind::Neutral;
+    }
     let s = token_signals(&scene_case(t));
     if n >= 5 && s.switches >= 3 {
         return TokenKind::Random;
@@ -1854,7 +1864,8 @@ mod tests {
             "Rocketship-Hurt_Feelings-WEB-2026-PreMaxXxing", "Drum-and-BassDJ_Samurai-Sound_With_Fire_Artemis-(FQY026)-WEB-2006-PRESCRiPTiON",
             "Kleverig-H4rd-N12uk3b18-luc16037-720p-smpwr", "Eclipse_IDE_2023-12_R_win32_x86_64.zip", "PartsHPGL 1.06c", "Go4Customer Fax Machine v1.2b",
             "AdBeGone 1.2", "3DMark03 320", "COD4MW2REMASTERED", "Movie.2020.1080p-GRP [a3f9e2b1]", "EPL__NZBSPLIT__f1fdb433772a1a7771d6b73c875009ff__NZBSPLIT__EPL.2026.Liverpool.vs.Brighton.1080pEN50fps",
-            "iPhone", "Some.Show.S01E01.1080p.mkv",
+            "iPhone", "Some.Show.S01E01.1080p.mkv", "FastFilms 2.04", "BestCrypt NP v4.0", "EasyHTML 2.35 German", "SchiffsModell - September 2026",
+            "CrossStitcher - Issue 440, October 2026", "Laura15Juli2026", "IHaveAWife - Isa Bella", "DickHDDaily - Santana Red", "1904-SmithsWork-Hasluck",
         ] {
             assert!(!is_unreadable_name(n), "{n}");
         }

lib/release/readable.ts

@@ -43,7 +43,7 @@ function signals(t: string) {
   let maxConsonants = 0
   for (let i = 0; i < t.length; i++) {
     const c = t[i]
-    if (/[b-df-hj-np-tv-z]/i.test(c)) maxConsonants = Math.max(maxConsonants, ++consonants)
+    if (/[b-df-hj-np-tv-xz]/i.test(c)) maxConsonants = Math.max(maxConsonants, ++consonants)
     else consonants = 0
     if (i === 0) continue
     const a = t[i - 1]
@@ -90,11 +90,14 @@ export function tokenKind(t: string): 'word' | 'random' | null {
       if (t.length >= 10 && s.vowels * 6 < t.length) return 'random'
       return t.length >= 3 ? 'word' : null
     }
-    // Mixed case beyond Capitalization: CamelCase (neutral) or a scramble, which has few vowels and short runs.
+    // Mixed case beyond Capitalization: CamelCase (neutral) or a scramble. Two CamelCase words with few vowels
+    // (FastFilms, BestCrypt, SchiffsModell) have four runs and no lone letter; a scramble has more runs, a lone
+    // letter or an inner capital run.
     if (
       t.length >= 6 &&
       s.caseSwitches >= 2 &&
-      (s.innerUpper || (s.vowels * 4 < t.length && (s.runs >= 4 || s.lone >= 1)))
+      s.vowels * 4 < t.length &&
+      (s.runs >= 5 || s.lone >= 1 || s.innerUpper)
     )
       return 'random'
     return null
@@ -104,6 +107,15 @@ export function tokenKind(t: string): 'word' | 'random' | null {
     // 51294P1CUKR2R35X; COD4MW2REMASTERED (4 switches) and BEATLES1964REMASTER (2) stay.
     return t.length >= 12 && signals(t).switches >= 6 ? 'random' : null
   }
+  // Words with numbers between them (Laura15Juli2026, Back4WinXP): every letter run a word or an acronym.
+  if (
+    (t.match(/[A-Za-z]+/g) ?? []).every(
+      (w) =>
+        /^[A-Z]{2,}$/.test(w) ||
+        (/^[A-Z]?[a-z]{2,}$/.test(w) && (w.match(/[aeiouy]/g) ?? []).length * 5 >= w.length)
+    )
+  )
+    return null
   const s = signals(sceneCase(t))
   if (t.length >= 5 && s.switches >= 3) return 'random'
   if (t.length >= 6 && s.switches >= 2 && (s.lone >= 1 || s.innerUpper || s.maxConsonants >= 4))

tests/unit/release/readable.spec.ts

@@ -52,6 +52,15 @@ test.group('release / isUnreadableName', () => {
       'EPL__NZBSPLIT__f1fdb433772a1a7771d6b73c875009ff__NZBSPLIT__EPL.2026.Liverpool.vs.Brighton.1080pEN50fps',
       'iPhone',
       'Some.Show.S01E01.1080p.mkv',
+      'FastFilms 2.04',
+      'BestCrypt NP v4.0',
+      'EasyHTML 2.35 German',
+      'SchiffsModell - September 2026',
+      'CrossStitcher - Issue 440, October 2026',
+      'Laura15Juli2026',
+      'IHaveAWife - Isa Bella',
+      'DickHDDaily - Santana Red',
+      '1904-SmithsWork-Hasluck',
     ]) {
       assert.isFalse(isUnreadableName(n), n)
     }