the second scroll: the mesorah snapshot, pinned and read (bishe'arecha step 6)

Devarim 17:18 — the king writes his copy from before the priests, not from
memory. scripts/build_mesorah.py takes one open-licence version per work
per language from the Sefaria export (bucket sefaria-export, catalogue of
2026-10-02; Public Domain / CC0 / CC-BY / CC-BY-SA only, checked in every
file; no CC-BY-NC — the Bavli is Wikisource's) and lays it down beside
L1: mesorah/works/<slug>/{he,en}.json, index.json, integrity.sha256,
build_report.json. 128 works (Rashi, Onkelos, Ramban, Ibn Ezra, Sforno
on the Torah; all of Mishnah; 37 Bavli tractates; Bereshit and Shemot
Rabbah, Sifrei, Tanchuma), 256 files, 44.9 MiB, tree hash 7d5b3a6c…
computed as L1's (sorted relative path, then bytes; the two post-hash
files excluded). What is out, and why (licence), is in Terumah §E5.

Read, never fetched: korban_processor/mesorah.py finds citations as
written (Rashi on Devarim 6:5, Berakhot 2a, Mishnah Berakhot 1:1,
Bereshit Rabbah 1:1, Sifrei Devarim 32, Tanchuma Bereshit 1 …), resolves
each against the snapshot (complex works through their unnamed node,
Tanchuma by parashah), lists them as examination.mesorah_references, and
makes every passage found a given source for that examination — so a
claim about Rashi anchors in Rashi or does not. The Vav Pipeline couples
coupled(reference(R), mesorah(Work, [Address])) or not_in_mesorah; the
engine accepts mesorah/2 as a terminal and not_in_mesorah is Form 4.
VavPipeline.Mesorah pins the hash, re-reads the tree at startup and every
ten minutes, and /kodesh/health carries mesorah_hash. Mounted read-only at
/mnt/mesorah in the vav-pipeline and korban-processor images. L3
bedikot.mesorah (migration 20261013000002).

Also: the 1-in-12 Day6 serving failure of 2026-10-04 reproduced with seed
446116 — HaltMonitorTest left the system halted; it now resolves on exit
and the Day6 setup is defensive. Construction §3.11, Terumah §E5, Tamid
§1.1, bishearecha §IV, KOHEN, AGENTS. Doorpost 0638d4eb…. Elixir 604/0
(seeds 835592 and 446116), korban 294/1 skipped, Prolog bedikah 44/44,
L3 10/0.

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

AGENTS.md

@@ -38,7 +38,7 @@ before writing code. Do not summarize from memory. Read fresh.
 | 1. Linux server | Deferred | Using macOS for dev; Exoscale for deploy |
 | 2. Language runtimes | Partial | GHC 9.6.4 + Cabal, SWI-Prolog 10.0.1, Erlang/OTP 26.2.5.9, Elixir 1.16.1 installed; Python not yet |
 | 3. PostgreSQL | Done | `temple-council-db` on Exoscale DBaaS ch-gva-2 |
-| 4. L1 Torah filesystem | Done | `src/l1_aron/build_l1.py` — 5853 verses, 79982 words, 1378 roots (BDB, by lemma) |
+| 4. L1 Torah filesystem | Done | `scripts/build_l1.py` — 5853 verses, 79982 words, 1378 roots (BDB, by lemma). The second scroll: `scripts/build_mesorah.py` → `mesorah/` (128 works, Sefaria export, open licences), pinned in `VavPipeline.Mesorah` |
 | 5. Shoresh Engine (Haskell) | Done | `shoresh-engine/` — 12 modules, 33 tests, all passing |
 | 6. Talmudic Engine (Prolog) | Done | `talmudic_engine/` — 15 modules, 57 tests, all passing |
 | 7. Verification | Done | Root activation (7 binyanim) + te'amim parse (Bereishit 1:1) + gematria (ברא=203, תורה=611, שלום=376) |