specs §3.1 + engine + Doorpost: a root is the consonants L1 records — two, three, or more

Architecture §3.1 typed a root as exactly three consonants
(`Shoresh {c1,c2,c3}`) and listed data/roots.json and
data/torah_refs.json in the engine's file tree. L1 has 115 roots that
are not three letters (32 of two, 83 of four or more), and the engine
has no data directory: the roots are in L1.

The code had followed the spec's type and paid for it. textToShoresh
padded a two-letter root with He — בן became בנה, כל became כלה — and
returned Nothing for anything longer, so Lexicon.buildLexiconFromVerses
either falsified those roots or dropped them. Shoresh.Roots (tablet 33)
had stepped around the type by carrying roots as Text.

Spec:
- §3.1 data structures: `newtype Shoresh = Shoresh { radicals ::
  [Consonant] }` — two or more, never padded or truncated; `mkShoresh`,
  `triliteral`.
- relatedRoots / neighbors: same length, differing in exactly one
  consonant (for a root of three, the old "sharing 2 consonants").
- File tree: Roots.hs and Server.hs added; data/ removed, with a line
  saying where the roots are; cabal.project.freeze listed; aeson's
  purpose corrected.

Engine:
- Types: the newtype, mkShoresh :: [Consonant] -> Maybe Shoresh,
  triliteral, textToShoresh without padding.
- Gematria: sum over the radicals. Graph: neighbors among roots of the
  same length; neighborsByPosition labels the shared positions
  ("c1c2" for a triliteral, as before).
- Server: consonant names through the type.
- Spec.hs: בן stays two letters (gematria 52, not 57); שמאל is held
  whole; the graph compares only roots of equal length. 59 examples.

Doorpost @expected_hash 094b8164… → f653ef05…, in this commit, with the
witnessed file that moved it (architecture).

Read before committing: Haskell 59/0; Elixir 474/0 on seeds 0 7 42;
both images built and run together with the real binary — Shemot 3:14
answers ב-ן (two letters), Bereishit 48:13 answers ש-מ-א-ל (four),
Devarim 6:5 unchanged; local specification_identity verified
f653ef05…; no engine errors or fallbacks.

Not touched: §3.1's dependency list omits bytestring, filepath and
directory, which the cabal file has.

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

shoresh-engine/src/Main.hs

@@ -62,7 +62,7 @@ runVerification = do
 
   -- 1. Root activation through all 7 binyanim
   putStrLn "--- Test 1: Root activation (ב-ר-א through 7 binyanim) ---"
-  let bara = mkShoresh Bet Resh Aleph  -- ברא = create
+  let bara = triliteral Bet Resh Aleph  -- ברא = create
   let expanded = expand bara
   mapM_ (\(b, p) -> do
     TIO.putStr $ "  " <> T.pack (show b) <> ": "

shoresh-engine/src/Shoresh/Gematria.hs

@@ -49,9 +49,9 @@ letterValue c = case c of
   Shin   -> 300
   Tav    -> 400
 
--- | Gematria of a triliteral root.
+-- | Gematria of a root — the sum of its consonants, however many.
 gematriaRoot :: Shoresh -> Int
-gematriaRoot (Shoresh a b d) = letterValue a + letterValue b + letterValue d
+gematriaRoot = sum . map letterValue . radicals
 
 -- | Gematria of a single Hebrew character.
 -- Returns 0 for non-consonant characters (vowels, cantillation marks).

shoresh-engine/src/Shoresh/Graph.hs

@@ -6,9 +6,11 @@
 --   neighbors :: Shoresh -> ShoreshLexicon -> [ShoreshEntry]
 --   "Find all roots sharing 2 consonants (semantic neighborhood)"
 --
--- Two roots are neighbors if they share 2 of 3 consonants
--- in the same positions. This captures the Hebrew linguistic
--- phenomenon where related roots share consonants.
+-- Two roots are neighbors if they have the same number of consonants
+-- and differ in exactly one position — for a root of three, the spec's
+-- "sharing 2 consonants". This captures the Hebrew linguistic phenomenon
+-- where related roots share consonants. Roots of different lengths are
+-- not compared.
 module Shoresh.Graph
   ( neighbors
   , sharedConsonants
@@ -20,30 +22,42 @@ import Shoresh.Lexicon (ShoreshLexicon, allRoots, lookupRoot)
 import Data.Maybe (mapMaybe)
 
 -- | Count shared consonants between two roots (position-sensitive).
+-- Roots of different lengths share none: there is no position to align.
 sharedConsonants :: Shoresh -> Shoresh -> Int
-sharedConsonants (Shoresh a1 b1 c1') (Shoresh a2 b2 c2') =
-  (if a1 == a2 then 1 else 0) +
-  (if b1 == b2 then 1 else 0) +
-  (if c1' == c2' then 1 else 0)
+sharedConsonants x y
+  | length rx /= length ry = 0
+  | otherwise              = length (filter id (zipWith (==) rx ry))
+  where
+    rx = radicals x
+    ry = radicals y
 
--- | Find all roots sharing exactly 2 consonants in the same positions.
+-- | Find all roots of the same length differing in exactly one consonant.
 neighbors :: Shoresh -> ShoreshLexicon -> [ShoreshEntry]
 neighbors sh lexicon =
   mapMaybe (\sh' ->
-    if sh' /= sh && sharedConsonants sh sh' >= 2
+    if sh' /= sh && isNeighbor sh sh'
     then lookupRoot sh' lexicon
     else Nothing
   ) (allRoots lexicon)
 
--- | Find neighbors that share consonants at specific positions.
--- Returns (position_shared, neighbor_entry) pairs.
+isNeighbor :: Shoresh -> Shoresh -> Bool
+isNeighbor x y =
+  length (radicals x) == length (radicals y)
+    && sharedConsonants x y == length (radicals x) - 1
+
+-- | Find neighbors, labelled by the positions they share.
+-- Returns (positions_shared, neighbor_entry) pairs — for a root of
+-- three, "c1c2", "c1c3" or "c2c3".
 neighborsByPosition :: Shoresh -> ShoreshLexicon -> [(String, ShoreshEntry)]
-neighborsByPosition sh@(Shoresh a b d) lexicon =
+neighborsByPosition sh lexicon =
   concatMap checkNeighbor (allRoots lexicon)
   where
-    checkNeighbor sh'@(Shoresh a' b' d')
-      | sh' == sh = []
-      | a == a' && b == b' = maybe [] (\e -> [("c1c2", e)]) (lookupRoot sh' lexicon)
-      | a == a' && d == d' = maybe [] (\e -> [("c1c3", e)]) (lookupRoot sh' lexicon)
-      | b == b' && d == d' = maybe [] (\e -> [("c2c3", e)]) (lookupRoot sh' lexicon)
+    checkNeighbor sh'
+      | sh' /= sh && isNeighbor sh sh' =
+          maybe [] (\e -> [(sharedLabel sh', e)]) (lookupRoot sh' lexicon)
       | otherwise = []
+
+    sharedLabel sh' =
+      concat [ 'c' : show i
+             | (i, same) <- zip [1 :: Int ..] (zipWith (==) (radicals sh) (radicals sh'))
+             , same ]

shoresh-engine/src/Shoresh/Server.hs

@@ -248,10 +248,10 @@ extractScope _ = Nothing
 -- | Render a root heard from L1 in the port's contract shape
 -- (Construction spec §3.1), plus where it was heard from.
 --
--- The shoresh is rendered exactly as L1 records it. A two-letter root
--- (כל, שמ) stays two letters: the old path padded it with He to fit the
--- triliteral type and reported a root — and a gematria — the text does
--- not contain.
+-- The shoresh is rendered exactly as L1 records it: a two-letter root
+-- (בן, יד) stays two letters and a longer one stays whole. The old path
+-- padded two letters with He to fit a triliteral type and reported a
+-- root — and a gematria — the text does not contain.
 --
 -- @binyan@ is the stem the verb actually stands in, read from the
 -- verse's morphology. It is null for a noun and for a word that is not
@@ -259,8 +259,11 @@ extractScope _ = Nothing
 activateRoot :: ResolvedRoot -> Value
 activateRoot r =
   let sh = rrShoresh r
+      -- L1's roots are consonants, so this parse cannot fail; if one
+      -- ever did, the names are simply absent — never invented.
+      names = maybe [] (map consonantName . radicals) (textToShoresh sh)
   in object
-    [ "shoresh"          .= mapMaybe (fmap consonantName . charToConsonant) (T.unpack sh)
+    [ "shoresh"          .= names
     , "shoresh_hebrew"   .= sh
     , "binyan"           .= fmap (T.pack . show) (rrBinyan r)
     , "domain"           .= ("unknown" :: Text)  -- Phase 3: domain lookup

shoresh-engine/src/Shoresh/Types.hs

@@ -18,6 +18,7 @@ module Shoresh.Types
     -- * Triliteral Roots
   , Shoresh(..)
   , mkShoresh
+  , triliteral
   , shoreshToText
   , textToShoresh
     -- * Binyanim (Transformation Operators)
@@ -96,39 +97,39 @@ consonantName c = case c of
   Shin   -> "shin";   Tav    -> "tav"
 
 
--- | A triliteral root — the atomic semantic unit.
--- Most Hebrew roots are three consonants. Some are two (biconsonantal).
--- The spec says triliteral; L1 shows some bicons (e.g. "שמ").
--- We model the common case. Bicons get a silent third.
-data Shoresh = Shoresh
-  { c1 :: !Consonant
-  , c2 :: !Consonant
-  , c3 :: !Consonant
+-- | A root — the atomic semantic unit: the consonants under which the
+-- lexicon files a word, exactly as L1 records them.
+--
+-- Most roots are three consonants. Torah also has roots of two (בן, יד)
+-- and of four or more (שמאל). A root is never padded and never truncated
+-- to make it three: until 2026-10-04 this type held exactly three
+-- consonants, a two-letter root was given a He the text never wrote
+-- (כל became כלה), and a longer one could not be held at all.
+newtype Shoresh = Shoresh
+  { radicals :: [Consonant]  -- ^ two or more, in order
   } deriving (Eq, Ord, Show, Generic)
 
 instance ToJSON Shoresh
 instance FromJSON Shoresh
 
--- | Construct a Shoresh from three consonants.
-mkShoresh :: Consonant -> Consonant -> Consonant -> Shoresh
-mkShoresh = Shoresh
+-- | Construct a root from its consonants. A root has at least two.
+mkShoresh :: [Consonant] -> Maybe Shoresh
+mkShoresh cs
+  | length cs >= 2 = Just (Shoresh cs)
+  | otherwise      = Nothing
+
+-- | A root of three consonants — the common case, and total.
+triliteral :: Consonant -> Consonant -> Consonant -> Shoresh
+triliteral a b d = Shoresh [a, b, d]
 
 -- | Render a Shoresh as Hebrew text.
 shoreshToText :: Shoresh -> Text
-shoreshToText (Shoresh a b d) =
-  T.pack [consonantToChar a, consonantToChar b, consonantToChar d]
+shoreshToText = T.pack . map consonantToChar . radicals
 
--- | Parse a Hebrew text string into a Shoresh.
--- Accepts 2 or 3 consonant strings.
--- For 2-consonant roots, pads with He (ה) as placeholder.
+-- | Parse Hebrew consonants into a Shoresh. Every character must be a
+-- consonant and there must be at least two. Nothing is added.
 textToShoresh :: Text -> Maybe Shoresh
-textToShoresh t =
-  let chars = T.unpack t
-      consonants = mapM charToConsonant chars
-  in case consonants of
-    Just [a, b, d] -> Just (Shoresh a b d)
-    Just [a, b]    -> Just (Shoresh a b He)  -- bicons: pad with He
-    _              -> Nothing
+textToShoresh t = mapM charToConsonant (T.unpack t) >>= mkShoresh
 
 
 -- | The seven binyanim — transformation operators on roots.

shoresh-engine/test/Spec.hs

@@ -64,32 +64,39 @@ consonantSpec = describe "Consonant" $ do
 shoreshSpec :: Spec
 shoreshSpec = describe "Shoresh" $ do
   it "constructs a triliteral root" $ do
-    let sh = mkShoresh Bet Resh Aleph
-    c1 sh `shouldBe` Bet
-    c2 sh `shouldBe` Resh
-    c3 sh `shouldBe` Aleph
+    let sh = triliteral Bet Resh Aleph
+    radicals sh `shouldBe` [Bet, Resh, Aleph]
 
   it "renders as Hebrew text" $ do
-    shoreshToText (mkShoresh Bet Resh Aleph) `shouldBe` "ברא"
-    shoreshToText (mkShoresh Qof Dalet Shin) `shouldBe` "קדש"
+    shoreshToText (triliteral Bet Resh Aleph) `shouldBe` "ברא"
+    shoreshToText (triliteral Qof Dalet Shin) `shouldBe` "קדש"
 
   it "parses from Hebrew text (3 consonants)" $ do
-    textToShoresh "ברא" `shouldBe` Just (mkShoresh Bet Resh Aleph)
-    textToShoresh "קדש" `shouldBe` Just (mkShoresh Qof Dalet Shin)
+    textToShoresh "ברא" `shouldBe` Just (triliteral Bet Resh Aleph)
+    textToShoresh "קדש" `shouldBe` Just (triliteral Qof Dalet Shin)
 
-  it "parses from Hebrew text (2 consonants — biconsonantal)" $ do
-    -- Build log: some roots in L1 are 2-consonant (e.g. "שמ")
-    let result = textToShoresh "שמ"
-    result `shouldSatisfy` isJust
-    -- Bicons pad with He
-    case result of
-      Just sh -> c3 sh `shouldBe` He
-      Nothing -> expectationFailure "Should have parsed"
+  it "a two-letter root stays two letters — nothing is added" $ do
+    -- L1 has roots of two consonants (בן, יד). This type once held
+    -- exactly three and padded these with He: בן became בנה.
+    fmap radicals (textToShoresh "בן") `shouldBe` Just [Bet, Nun]
+    fmap shoreshToText (textToShoresh "בן") `shouldBe` Just "בנ"
+    fmap gematriaRoot (textToShoresh "בן") `shouldBe` Just 52
+
+  it "a root of four or more is held whole" $ do
+    -- שמאל — once rejected as "too long".
+    fmap radicals (textToShoresh "שמאל") `shouldBe` Just [Shin, Mem, Aleph, Lamed]
+    fmap gematriaRoot (textToShoresh "שמאל") `shouldBe` Just 371
+
+  it "mkShoresh needs at least two consonants" $ do
+    mkShoresh [] `shouldBe` Nothing
+    mkShoresh [Aleph] `shouldBe` Nothing
+    mkShoresh [Bet, Nun] `shouldSatisfy` isJust
 
   it "rejects invalid input" $ do
     textToShoresh "" `shouldBe` Nothing
-    textToShoresh "א" `shouldBe` Nothing  -- too short
-    textToShoresh "אבגד" `shouldBe` Nothing  -- too long
+    textToShoresh "א" `shouldBe` Nothing  -- one letter is not a root
+    textToShoresh "abc" `shouldBe` Nothing
+    textToShoresh "בר1" `shouldBe` Nothing
 
 
 binyanSpec :: Spec
@@ -98,14 +105,14 @@ binyanSpec = describe "Binyanim" $ do
     length allBinyanim `shouldBe` 7
 
   it "activates a root through all 7 binyanim" $ do
-    let sh = mkShoresh Bet Resh Aleph
+    let sh = triliteral Bet Resh Aleph
     let expanded = expand sh
     Map.size expanded `shouldBe` 7
     -- Each binyan should produce a peulah with the same root
     mapM_ (\(b, p) -> root p `shouldBe` sh) (Map.toList expanded)
 
   it "activate produces correct grammatical features" $ do
-    let sh = mkShoresh Shin Mem Resh  -- שמר = guard
+    let sh = triliteral Shin Mem Resh  -- שמר = guard
     let p = activate Qal Third Singular Masculine Perfect sh
     root p `shouldBe` sh
     binyan p `shouldBe` Qal
@@ -115,7 +122,7 @@ binyanSpec = describe "Binyanim" $ do
     aspect p `shouldBe` Perfect
 
   it "activateDefault uses 3ms perfect citation form" $ do
-    let sh = mkShoresh Kaf Tav Bet  -- כתב = write
+    let sh = triliteral Kaf Tav Bet  -- כתב = write
     let p = activateDefault Qal sh
     person p `shouldBe` Third
     number p `shouldBe` Singular
@@ -133,11 +140,11 @@ gematriaSpec = describe "Gematria" $ do
 
   it "computes root gematria correctly" $ do
     -- ברא = Bet(2) + Resh(200) + Aleph(1) = 203
-    gematriaRoot (mkShoresh Bet Resh Aleph) `shouldBe` 203
+    gematriaRoot (triliteral Bet Resh Aleph) `shouldBe` 203
     -- קדש = Qof(100) + Dalet(4) + Shin(300) = 404
-    gematriaRoot (mkShoresh Qof Dalet Shin) `shouldBe` 404
+    gematriaRoot (triliteral Qof Dalet Shin) `shouldBe` 404
     -- שלם = Shin(300) + Lamed(30) + Mem(40) = 370
-    gematriaRoot (mkShoresh Shin Lamed Mem) `shouldBe` 370
+    gematriaRoot (triliteral Shin Lamed Mem) `shouldBe` 370
 
   it "computes word gematria correctly" $ do
     -- תורה = Tav(400) + Vav(6) + Resh(200) + He(5) = 611
@@ -151,8 +158,8 @@ gematriaSpec = describe "Gematria" $ do
     gematriaWord "בְּרֵאשִׁ֖ית" `shouldBe` gematriaWord "בראשית"
 
   it "finds gematria neighbors" $ do
-    let bara = mkShoresh Bet Resh Aleph  -- 203
-    let other = mkShoresh Resh Gimel Gimel  -- 200+3+3 = 206, not 203
+    let bara = triliteral Bet Resh Aleph  -- 203
+    let other = triliteral Resh Gimel Gimel  -- 200+3+3 = 206, not 203
     let lex = Map.fromList
                 [ (bara, ShoreshEntry bara Creation [] [] Map.empty)
                 , (other, ShoreshEntry other Creation [] [] Map.empty)
@@ -240,10 +247,10 @@ ketivQereSpec = describe "KetivQere" $ do
 graphSpec :: Spec
 graphSpec = describe "Graph" $ do
   it "finds roots sharing 2 consonants" $ do
-    let bara = mkShoresh Bet Resh Aleph    -- ברא
-    let barak = mkShoresh Bet Resh Kaf     -- ברך (shares ב,ר)
-    let garaEnt = mkShoresh Gimel Resh Aleph -- גרא (shares ר,א)
-    let unrelated = mkShoresh Shin Lamed Mem -- שלם (shares nothing)
+    let bara = triliteral Bet Resh Aleph    -- ברא
+    let barak = triliteral Bet Resh Kaf     -- ברך (shares ב,ר)
+    let garaEnt = triliteral Gimel Resh Aleph -- גרא (shares ר,א)
+    let unrelated = triliteral Shin Lamed Mem -- שלם (shares nothing)
     let lex = Map.fromList
                 [ (bara, ShoreshEntry bara Creation [] [] Map.empty)
                 , (barak, ShoreshEntry barak Blessing [] [] Map.empty)
@@ -253,25 +260,48 @@ graphSpec = describe "Graph" $ do
     let ns = neighbors bara lex
     length ns `shouldBe` 2  -- barak and gara, not unrelated
 
+  it "compares only roots of the same length" $ do
+    let Just ben = textToShoresh "בן"
+    let Just bat = textToShoresh "בת"
+    let bana = triliteral Bet Nun He
+    sharedConsonants ben bat `shouldBe` 1
+    sharedConsonants ben bana `shouldBe` 0
+    let lex = Map.fromList
+                [ (ben, ShoreshEntry ben Creation [] [] Map.empty)
+                , (bat, ShoreshEntry bat Creation [] [] Map.empty)
+                , (bana, ShoreshEntry bana Creation [] [] Map.empty)
+                ]
+    map seShoresh (neighbors ben lex) `shouldBe` [bat]
+    map fst (neighborsByPosition ben lex) `shouldBe` ["c1"]
+
+  it "labels a triliteral neighbor by the positions it shares" $ do
+    let bara = triliteral Bet Resh Aleph
+    let barak = triliteral Bet Resh Kaf
+    let lex = Map.fromList
+                [ (bara, ShoreshEntry bara Creation [] [] Map.empty)
+                , (barak, ShoreshEntry barak Blessing [] [] Map.empty)
+                ]
+    map fst (neighborsByPosition bara lex) `shouldBe` ["c1c2"]
+
   it "counts shared consonants correctly" $ do
-    let sh1 = mkShoresh Bet Resh Aleph
-    let sh2 = mkShoresh Bet Resh Kaf
+    let sh1 = triliteral Bet Resh Aleph
+    let sh2 = triliteral Bet Resh Kaf
     sharedConsonants sh1 sh2 `shouldBe` 2
-    let sh3 = mkShoresh Shin Lamed Mem
+    let sh3 = triliteral Shin Lamed Mem
     sharedConsonants sh1 sh3 `shouldBe` 0
 
 
 kiTovSpec :: Spec
 kiTovSpec = describe "KiTov" $ do
   it "returns Tov when all roots exist in lexicon" $ do
-    let sh = mkShoresh Bet Resh Aleph
+    let sh = triliteral Bet Resh Aleph
     let entry = ShoreshEntry sh Creation [] [Reference Bereishit 1 1] Map.empty
     let lex = Map.fromList [(sh, entry)]
     let result = ProcessedResult [] [entry]
     kiTov result lex `shouldBe` Tov
 
   it "returns LoTov when roots are missing" $ do
-    let sh = mkShoresh Bet Resh Aleph
+    let sh = triliteral Bet Resh Aleph
     let entry = ShoreshEntry sh Creation [] [Reference Bereishit 1 1] Map.empty
     let emptyLex = Map.empty
     let result = ProcessedResult [] [entry]

specs/shorashim_architecture.md

@@ -119,13 +119,17 @@ data Consonant = Aleph | Bet | Gimel | Dalet | He | Vav | Zayin
                | Samekh | Ayin | Pe | Tsade | Qof | Resh | Shin | Tav
                deriving (Eq, Ord, Show, Enum, Bounded)
 
--- A triliteral root — the atomic semantic unit
-data Shoresh = Shoresh
-  { c1 :: Consonant
-  , c2 :: Consonant
-  , c3 :: Consonant
+-- A root — the atomic semantic unit: the consonants under which the
+-- lexicon files a word, exactly as L1 records them. Most roots have
+-- three consonants; Torah also has roots of two (בן, יד) and of four or
+-- more (שמאל). A root is never padded or truncated to make it three.
+newtype Shoresh = Shoresh
+  { radicals :: [Consonant]   -- two or more, in order
   } deriving (Eq, Ord, Show)
 
+mkShoresh  :: [Consonant] -> Maybe Shoresh                   -- needs at least two
+triliteral :: Consonant -> Consonant -> Consonant -> Shoresh -- the common case
+
 -- The seven binyanim — transformation operators
 data Binyan = Qal       -- Simple active
             | Nifal     -- Passive / reflexive
@@ -157,7 +161,7 @@ data SemanticDomain = Creation | Separation | Speech | Movement
 data ShoreshEntry = ShoreshEntry
   { shoresh        :: Shoresh
   , primaryDomain  :: SemanticDomain
-  , relatedRoots   :: [Shoresh]         -- roots sharing 2 consonants
+  , relatedRoots   :: [Shoresh]         -- same length, differing in one consonant
   , torahOccurrences :: [Reference]     -- where this root appears in Torah
   , glosses        :: Map Binyan Text   -- basic meanings per binyan
   } deriving (Show)
@@ -176,7 +180,8 @@ data Reference = Reference
 -- Apply a binyan to a root (the fundamental operation)
 activate :: Binyan -> Shoresh -> Peulah
 
--- Find all roots sharing 2 consonants (semantic neighborhood)
+-- Find all roots of the same length differing in exactly one consonant
+-- (for a root of three: sharing 2 consonants) — the semantic neighborhood
 neighbors :: Shoresh -> ShoreshLexicon -> [ShoreshEntry]
 
 -- Trace a root through all 7 binyanim (full semantic expansion)
@@ -316,6 +321,7 @@ shoresh-engine/
 │   ├── Shoresh/
 │   │   ├── Types.hs          -- All data types above
 │   │   ├── Lexicon.hs        -- The root lexicon, read from L1 (1,378 roots)
+│   │   ├── Roots.hs          -- A word's root, heard from L1 (verse, lemma, Torah-wide)
 │   │   ├── Binyanim.hs       -- Transformation operators
 │   │   ├── Havdalah.hs       -- Separation/distinction engine
 │   │   ├── Kriah.hs          -- Naming/identification
@@ -324,23 +330,26 @@ shoresh-engine/
 │   │   ├── Teamim.hs         -- Te'amim reader (reads raw marks, constructs parse tree)
 │   │   ├── Gematria.hs       -- Numerical value lookup and equivalences
 │   │   ├── Smikhut.hs        -- Construct-state composition (reads attested compounds)
-│   │   └── KetivQere.hs      -- Dual reading type support
+│   │   ├── KetivQere.hs      -- Dual reading type support
+│   │   └── Server.hs         -- JSON-line port for the Vav Pipeline (Construction §3.1)
 │   ├── Luchot/
 │   │   └── Firmware.hs       -- L0 immutable constants (compiled in)
 │   └── Main.hs
-├── data/
-│   ├── roots.json            -- Root lexicon data
-│   └── torah_refs.json       -- Torah reference index
 ├── test/
 │   └── Spec.hs
+├── cabal.project.freeze
 └── shoresh-engine.cabal
 ```
 
+The engine carries no data files of its own. The roots and the Torah
+references are in L1 (`l1/torah/`, found through `L1_MOUNT_POINT`) and
+are read from there when the engine starts.
+
 **Dependencies (Haskell packages):**
 - `base`
 - `containers` (Map, Set)
 - `text`
-- `aeson` (JSON parsing for lexicon data)
+- `aeson` (JSON: L1 verses and the port protocol)
 - `vector`
 
 ---

vav_pipeline/lib/vav_pipeline/doorpost.ex

@@ -175,7 +175,7 @@ defmodule VavPipeline.Doorpost do
   # changes; the update is a deliberate operator commit. A bare
   # hash-update commit (without a corresponding spec change in the
   # same commit) is itself a drift signal.
-  @expected_hash "094b8164dc1e5b280dc797d0e4c351ed67898a2046133e5f00a1972ffbde5661"
+  @expected_hash "f653ef0520c86bb378727fa877421796e18a424acc3fb396c62082b47c53cd50"
 
   @doc "Return the list of files that constitute the category-grade specification."
   @spec files() :: [String.t()]