From b9fce524ea60283d25d6b4674467cc5ec1a9593d Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Thu, 8 Oct 2026 19:35:43 +0000
Subject: [PATCH 1/5] vocab: mint Mail domain (0x05XX: mailbox, mail_message) +
 Spear port 0x000A

The mail hub (spear) and the stalwart dir-sim directory need a classid to
declare an RBAC plug against; nothing mail-shaped was minted. 0x05XX is the
next clean domain slot (0x10XX would put a domain root on the V3 marker
0x1000). Paired with the lance-graph ogar_codebook mirror.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G22yT6htkcdyXsihxxXdrg
---
 crates/ogar-vocab/src/capability_registry.rs |  2 +-
 crates/ogar-vocab/src/lib.rs                 | 76 ++++++++++++++++++--
 crates/ogar-vocab/src/ports.rs               | 31 ++++++++
 docs/APP-CLASS-CODEBOOK-LAYOUT.md            |  3 +-
 4 files changed, 105 insertions(+), 7 deletions(-)

diff --git a/crates/ogar-vocab/src/capability_registry.rs b/crates/ogar-vocab/src/capability_registry.rs
index c477b5c8..f9b39c0b 100644
--- a/crates/ogar-vocab/src/capability_registry.rs
+++ b/crates/ogar-vocab/src/capability_registry.rs
@@ -377,7 +377,7 @@ fn resolve_concept_row(id: u16) -> Option<(&'static str, u16)> {
 mod the_canon_carries_no_palette_rows {
     #[test]
     fn no_0x17xx_row_reached_the_globally_mirrored_codebook() {
-        assert_eq!(crate::class_ids::ALL.len(), 98);
+        assert_eq!(crate::class_ids::ALL.len(), 100);
         for (_, id) in crate::class_ids::ALL {
             assert_ne!(*id >> 8, 0x17, "a 0x17XX row reached the codebook");
         }
diff --git a/crates/ogar-vocab/src/lib.rs b/crates/ogar-vocab/src/lib.rs
index 353d8196..aa19ca90 100644
--- a/crates/ogar-vocab/src/lib.rs
+++ b/crates/ogar-vocab/src/lib.rs
@@ -1106,7 +1106,7 @@ impl Class {
 ///   0x02XX  commerce / ERP    (OSB ↔ Odoo cross-curator)
 ///   0x03XX  Ontology          (OBO biomedical reference: MONDO/HPO/Uberon/PATO/RO — zero rows here; concepts in ogar-obo)
 ///   0x04XX  Weather / Atmosphere (forecast + atmospheric reference cells)
-///   0x05XX  unassigned
+///   0x05XX  Mail              (mailbox + message; consumed by spear / stalwart)
 ///   0x06XX  unassigned
 ///   0x07XX  reserved: OSINT
 ///   0x08XX  OCR               (container kinds: unicharset/recoder/charset)
@@ -1240,6 +1240,12 @@ const CODEBOOK: &[(&str, u16)] = &[
     // ClassView selection remains in the low u16 of the full classid.
     ("weather_cell", 0x0401),
     ("weather_static_cell", 0x0402),
+    // ── 0x05XX — Mail domain ──
+    // The two things a mail store authorizes: the mailbox (whose access follows
+    // its owner in the directory) and the message inside it. Folders, flags and
+    // threads are rows and columns of these, not concepts of their own.
+    ("mailbox", 0x0501),
+    ("mail_message", 0x0502),
     // ── 0x07XX — OSINT domain: ZERO vocabulary rows BY DESIGN (operator
     // ruling 2026-07-02, corrects PR #145's two hallucinated concept mints
     // `osint_system@0x0700` / `osint_person@0x0701`). Within the OSINT domain
@@ -1479,6 +1485,10 @@ pub enum ConceptDomain {
     /// `0x04XX` — Weather / Atmosphere. Shared atmospheric and forecast-grid
     /// concepts; public environmental reference data, not an OSM extension.
     Weather,
+    /// `0x05XX` — Mail. The mailbox and the message, as one mail store
+    /// authorizes them; consumed by spear (the mail hub) and the stalwart
+    /// dir-sim directory.
+    Mail,
     /// `0x07XX` — OSINT (open-source intelligence).
     Osint,
     /// `0x08XX` — OCR (optical character recognition / document
@@ -1754,7 +1764,7 @@ pub enum ConceptDomain {
     /// reads the compartment off the key (`classid >> 24`) instead of looking
     /// it up.
     Form,
-    /// Any high-byte slot not yet assigned a domain (`0x05XX`–`0x06XX`,
+    /// Any high-byte slot not yet assigned a domain (`0x06XX`,
     /// `0x10XX`–`0x16XX`, `0x18XX`–`0xBFXX`, `0xC2XX`–`0xC3XX`,
     /// `0xC5XX`, `0xC7XX`+).
     Unassigned,
@@ -1770,6 +1780,7 @@ pub fn canonical_concept_domain(id: u16) -> ConceptDomain {
         0x02 => ConceptDomain::Commerce,
         0x03 => ConceptDomain::Ontology,
         0x04 => ConceptDomain::Weather,
+        0x05 => ConceptDomain::Mail,
         0x07 => ConceptDomain::Osint,
         0x08 => ConceptDomain::Ocr,
         0x09 => ConceptDomain::Health,
@@ -2051,6 +2062,14 @@ pub mod class_ids {
     /// geography-derived weather context, distinct from dynamic fields.
     pub const WEATHER_STATIC_CELL: u16 = 0x0402;
 
+    // ── 0x05XX — Mail domain ──
+
+    /// `mailbox` (`0x0501`) — one mailbox. Access follows the directory object
+    /// that owns it.
+    pub const MAILBOX: u16 = 0x0501;
+    /// `mail_message` (`0x0502`) — one message in a mailbox.
+    pub const MAIL_MESSAGE: u16 = 0x0502;
+
     // ── 0x08XX — OCR domain (document extraction; the Tesseract-rs arc) ──
     // Class-level container KINDS only: the concept slots name the container
     // types the Core resolves — never their content. The 112 unichars of a
@@ -2369,6 +2388,9 @@ pub mod class_ids {
         // 0x04XX — Weather / Atmosphere
         ("weather_cell", WEATHER_CELL),
         ("weather_static_cell", WEATHER_STATIC_CELL),
+        // 0x05XX — Mail
+        ("mailbox", MAILBOX),
+        ("mail_message", MAIL_MESSAGE),
         // 0x07XX — OSINT: ZERO vocabulary rows BY DESIGN (operator ruling
         // 2026-07-02; see the CODEBOOK 0x07XX section note). No entries
         // follow — OGAR vocabulary carries no OSINT concept names.
@@ -2504,7 +2526,7 @@ pub mod class_ids {
             // Pin the number here so a bump is never silent.
             assert_eq!(
                 ALL.len(),
-                98,
+                100,
                 "class_ids::ALL count changed — update this pin AND land the \
                  corresponding row in lance-graph's \
                  crates/lance-graph-contract/src/ogar_codebook.rs::CODEBOOK \
@@ -3331,6 +3353,8 @@ pub fn all_promoted_classes() -> Vec<Class> {
         // 0x08XX — OCR arm (9 container kinds), in class_ids::ALL order.
         weather_cell(),
         weather_static_cell(),
+        mailbox(),
+        mail_message(),
         unicharset(),
         recoder(),
         charset(),
@@ -5034,6 +5058,29 @@ pub fn weather_static_cell() -> Class {
     c
 }
 
+// ─────────────────────────────────────────────────────────────────────
+// 0x05XX — Mail canonical builders. Identity only; the message columns live
+// in the consumer's ClassView (spear's `messages` Lance schema).
+// ─────────────────────────────────────────────────────────────────────
+
+/// `mailbox` (`0x0501`) — one mailbox.
+#[must_use]
+pub fn mailbox() -> Class {
+    let mut c = Class::new("Mailbox");
+    c.language = Language::Unknown;
+    c.canonical_concept = Some("mailbox".to_string());
+    c
+}
+
+/// `mail_message` (`0x0502`) — one message in a mailbox.
+#[must_use]
+pub fn mail_message() -> Class {
+    let mut c = Class::new("MailMessage");
+    c.language = Language::Unknown;
+    c.canonical_concept = Some("mail_message".to_string());
+    c
+}
+
 // ─────────────────────────────────────────────────────────────────────
 // 0xC6XX — MMIO hardware-platform builders (C64 = founding tenant).
 // Kind-level containers only: registers/opcodes are content rows.
@@ -6050,10 +6097,11 @@ mod tests {
         // lives in ogar-obo; plug-and-play, never pulls into ERP consumers).
         assert_eq!(canonical_concept_domain(0x0300), ConceptDomain::Ontology);
         assert_eq!(canonical_concept_domain(0x03AB), ConceptDomain::Ontology);
-        // Weather / Atmosphere block (0x04), then still-unassigned 0x05-0x06.
+        // Weather / Atmosphere block (0x04), Mail (0x05), then still-unassigned 0x06.
         assert_eq!(canonical_concept_domain(0x0400), ConceptDomain::Weather);
         assert_eq!(canonical_concept_domain(0x0401), ConceptDomain::Weather);
-        assert_eq!(canonical_concept_domain(0x0500), ConceptDomain::Unassigned);
+        assert_eq!(canonical_concept_domain(0x0500), ConceptDomain::Mail);
+        assert_eq!(canonical_concept_domain(0x05FF), ConceptDomain::Mail);
         assert_eq!(canonical_concept_domain(0x0600), ConceptDomain::Unassigned);
         // HR block (0x0D).
         assert_eq!(canonical_concept_domain(0x0D00), ConceptDomain::HR);
@@ -7227,3 +7275,21 @@ mod weather_classid_mint_tests {
         );
     }
 }
+
+#[cfg(test)]
+mod mail_classid_mint_tests {
+    use super::*;
+
+    #[test]
+    fn mail_domain_and_codebook_resolve() {
+        for id in [class_ids::MAILBOX, class_ids::MAIL_MESSAGE] {
+            assert_eq!(canonical_concept_domain(id), ConceptDomain::Mail);
+        }
+        assert_eq!(canonical_concept_id("mailbox"), Some(0x0501));
+        assert_eq!(canonical_concept_id("mail_message"), Some(0x0502));
+        assert_eq!(mailbox().canonical_id(), Some(class_ids::MAILBOX));
+        assert_eq!(mail_message().canonical_id(), Some(class_ids::MAIL_MESSAGE));
+        // 0x06 stays unassigned.
+        assert_eq!(canonical_concept_domain(0x0600), ConceptDomain::Unassigned);
+    }
+}
diff --git a/crates/ogar-vocab/src/ports.rs b/crates/ogar-vocab/src/ports.rs
index 6947a721..7b68b9f3 100644
--- a/crates/ogar-vocab/src/ports.rs
+++ b/crates/ogar-vocab/src/ports.rs
@@ -639,11 +639,42 @@ pub const WEATHERNEXT_ALIASES: &[(&str, u16)] = &[
     ("WeatherStaticCell", class_ids::WEATHER_STATIC_CELL),
 ];
 
+// ── Spear (the mail hub) port ────────────────────────────────────────
+
+/// Spear's `PortSpec` over the shared Mail (`0x05XX`) concepts. `0x000A` is
+/// Spear's render skin; the mailbox and message meanings stay in the high u16.
+pub struct SpearPort;
+
+impl PortSpec for SpearPort {
+    const NAMESPACE: &'static str = "Spear";
+    const BRIDGE_ID: &'static str = "spear";
+    const APP_PREFIX: u16 = 0x000A;
+    fn aliases() -> &'static [(&'static str, u16)] {
+        SPEAR_ALIASES
+    }
+}
+
+/// Spear's names for the shared mail concepts.
+pub const SPEAR_ALIASES: &[(&str, u16)] = &[
+    ("Mailbox", class_ids::MAILBOX),
+    ("Message", class_ids::MAIL_MESSAGE),
+];
+
 #[cfg(test)]
 mod tests {
     use super::*;
     use crate::app::{app_of, concept_of, render_classid};
 
+    #[test]
+    fn spear_classview_composes_canon_high_custom_low() {
+        assert_eq!(SpearPort::class_id("Mailbox"), Some(0x0501));
+        assert_eq!(SpearPort::class_id("Message"), Some(0x0502));
+        let mailbox = render_classid(SpearPort::APP_PREFIX, class_ids::MAILBOX);
+        assert_eq!(mailbox, 0x0501_000A);
+        assert_eq!(concept_of(mailbox), 0x0501);
+        assert_eq!(app_of(mailbox), 0x000A);
+    }
+
     #[test]
     fn weathernext_classview_composes_canon_high_custom_low() {
         assert_eq!(WeatherNextPort::APP_PREFIX, 0x0009);
diff --git a/docs/APP-CLASS-CODEBOOK-LAYOUT.md b/docs/APP-CLASS-CODEBOOK-LAYOUT.md
index 29887537..da98ce3d 100644
--- a/docs/APP-CLASS-CODEBOOK-LAYOUT.md
+++ b/docs/APP-CLASS-CODEBOOK-LAYOUT.md
@@ -171,7 +171,7 @@ materialised until the app mints its first private class).
 
 | `lo u16` | App / namespace | Core domain(s) it consumes | Private codebook today? |
 |---|---|---|---|
-| `0x0000` | **Shared canonical core** | all (`0x01/02/04/07/08/09` + `0x0A` anatomy + `0x0B` auth + `0x0C` automation) | n/a (this *is* core) |
+| `0x0000` | **Shared canonical core** | all (`0x01/02/04/05/07/08/09` + `0x0A` anatomy + `0x0B` auth + `0x0C` automation) | n/a (this *is* core) |
 | `0x0001` | OpenProject (openproject-nexgen-rs) | `0x01` project-mgmt | **no** — maps onto core |
 | `0x0002` | Odoo | `0x02` commerce | **no** — maps onto core (converge `od-ontology`) |
 | `0x0003` | WoA / woa-rs | `0x02` commerce (work orders) | **no** — maps onto core |
@@ -181,6 +181,7 @@ materialised until the app mints its first private class).
 | `0x0007` | Redmine | `0x01` project-mgmt | **no** — same concepts as OpenProject, own templates |
 | `0x0008` | OpenStreetMap (openstreetmap-website-rs) | `0x0F` geo | **no** — maps entirely onto core |
 | `0x0009` | WeatherNext / weathernext-rs | `0x04` weather / atmosphere | **no** — maps onto core |
+| `0x000A` | Spear (mail hub) | `0x05` mail | **no** — maps onto core |
 | `0x00A0` | (reserved) future app block | — | — |
 
 > **OpenProject (`0x0001`) and Redmine (`0x0007`) are the showcase:**

From 9dce4cca892c8de5c2653539a19bd9f65568e5e8 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Thu, 8 Oct 2026 19:43:31 +0000
Subject: [PATCH 2/5] class-view: register mailbox / mail_message

every_codebook_id_appears_in_class_ids_all requires every minted concept to
carry a ClassView; the Mail mint missed it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G22yT6htkcdyXsihxxXdrg
---
 crates/ogar-class-view/src/lib.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/crates/ogar-class-view/src/lib.rs b/crates/ogar-class-view/src/lib.rs
index 4416432f..de44e2c1 100644
--- a/crates/ogar-class-view/src/lib.rs
+++ b/crates/ogar-class-view/src/lib.rs
@@ -98,6 +98,8 @@ use ogar_vocab::{
     knowledge_item,
     lab_value,
     machine_memory_map,
+    mail_message,
+    mailbox,
     mars_application,
     mars_machine,
     mars_node_template,
@@ -232,6 +234,8 @@ fn all_canonical_classes() -> Vec<(&'static str, Class)> {
         // manifest, not promoted into the shared OGAR schema.
         ("weather_cell", weather_cell()),
         ("weather_static_cell", weather_static_cell()),
+        ("mailbox", mailbox()),
+        ("mail_message", mail_message()),
         // ── 0x08XX — OCR (container kinds; content stays in content stores) ──
         ("unicharset", unicharset()),
         ("recoder", recoder()),

From 1f10a5e197b29097f74b622ba8454922f3a03ddc Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Thu, 8 Oct 2026 19:59:23 +0000
Subject: [PATCH 3/5] vocab: Mail domain is OGIT ogit:Email, not invented
 concepts

Replaces mailbox / mail_message with one concept, email (0x0501), read from
OGIT ogit:Email (SGO; optional attributes from EmailCorrespondance).
Mailboxes, folders and flags are columns of an email row. SpearPort maps
Spear's public names onto canon: Email/Message -> email, Document/DriveItem
-> the existing document (0x080B).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G22yT6htkcdyXsihxxXdrg
---
 crates/ogar-class-view/src/lib.rs            |  6 +-
 crates/ogar-vocab/src/capability_registry.rs |  2 +-
 crates/ogar-vocab/src/lib.rs                 | 64 +++++++-------------
 crates/ogar-vocab/src/ports.rs               | 24 +++++---
 4 files changed, 40 insertions(+), 56 deletions(-)

diff --git a/crates/ogar-class-view/src/lib.rs b/crates/ogar-class-view/src/lib.rs
index de44e2c1..3ba09e9d 100644
--- a/crates/ogar-class-view/src/lib.rs
+++ b/crates/ogar-class-view/src/lib.rs
@@ -87,6 +87,7 @@ use ogar_vocab::{
     currency_policy,
     diagnosis,
     document,
+    email,
     examination,
     external_practice,
     hr_department,
@@ -98,8 +99,6 @@ use ogar_vocab::{
     knowledge_item,
     lab_value,
     machine_memory_map,
-    mail_message,
-    mailbox,
     mars_application,
     mars_machine,
     mars_node_template,
@@ -234,8 +233,7 @@ fn all_canonical_classes() -> Vec<(&'static str, Class)> {
         // manifest, not promoted into the shared OGAR schema.
         ("weather_cell", weather_cell()),
         ("weather_static_cell", weather_static_cell()),
-        ("mailbox", mailbox()),
-        ("mail_message", mail_message()),
+        ("email", email()),
         // ── 0x08XX — OCR (container kinds; content stays in content stores) ──
         ("unicharset", unicharset()),
         ("recoder", recoder()),
diff --git a/crates/ogar-vocab/src/capability_registry.rs b/crates/ogar-vocab/src/capability_registry.rs
index f9b39c0b..ae1d24af 100644
--- a/crates/ogar-vocab/src/capability_registry.rs
+++ b/crates/ogar-vocab/src/capability_registry.rs
@@ -377,7 +377,7 @@ fn resolve_concept_row(id: u16) -> Option<(&'static str, u16)> {
 mod the_canon_carries_no_palette_rows {
     #[test]
     fn no_0x17xx_row_reached_the_globally_mirrored_codebook() {
-        assert_eq!(crate::class_ids::ALL.len(), 100);
+        assert_eq!(crate::class_ids::ALL.len(), 99);
         for (_, id) in crate::class_ids::ALL {
             assert_ne!(*id >> 8, 0x17, "a 0x17XX row reached the codebook");
         }
diff --git a/crates/ogar-vocab/src/lib.rs b/crates/ogar-vocab/src/lib.rs
index aa19ca90..e9e0eba5 100644
--- a/crates/ogar-vocab/src/lib.rs
+++ b/crates/ogar-vocab/src/lib.rs
@@ -1106,7 +1106,7 @@ impl Class {
 ///   0x02XX  commerce / ERP    (OSB ↔ Odoo cross-curator)
 ///   0x03XX  Ontology          (OBO biomedical reference: MONDO/HPO/Uberon/PATO/RO — zero rows here; concepts in ogar-obo)
 ///   0x04XX  Weather / Atmosphere (forecast + atmospheric reference cells)
-///   0x05XX  Mail              (mailbox + message; consumed by spear / stalwart)
+///   0x05XX  Mail              (OGIT `ogit:Email`; consumed by spear)
 ///   0x06XX  unassigned
 ///   0x07XX  reserved: OSINT
 ///   0x08XX  OCR               (container kinds: unicharset/recoder/charset)
@@ -1241,11 +1241,10 @@ const CODEBOOK: &[(&str, u16)] = &[
     ("weather_cell", 0x0401),
     ("weather_static_cell", 0x0402),
     // ── 0x05XX — Mail domain ──
-    // The two things a mail store authorizes: the mailbox (whose access follows
-    // its owner in the directory) and the message inside it. Folders, flags and
-    // threads are rows and columns of these, not concepts of their own.
-    ("mailbox", 0x0501),
-    ("mail_message", 0x0502),
+    // OGIT `ogit:Email` (SGO; optional attributes from the
+    // `EmailCorrespondance` namespace). Mailboxes, folders, flags and threads
+    // are columns of an email row, not concepts of their own.
+    ("email", 0x0501),
     // ── 0x07XX — OSINT domain: ZERO vocabulary rows BY DESIGN (operator
     // ruling 2026-07-02, corrects PR #145's two hallucinated concept mints
     // `osint_system@0x0700` / `osint_person@0x0701`). Within the OSINT domain
@@ -1485,9 +1484,7 @@ pub enum ConceptDomain {
     /// `0x04XX` — Weather / Atmosphere. Shared atmospheric and forecast-grid
     /// concepts; public environmental reference data, not an OSM extension.
     Weather,
-    /// `0x05XX` — Mail. The mailbox and the message, as one mail store
-    /// authorizes them; consumed by spear (the mail hub) and the stalwart
-    /// dir-sim directory.
+    /// `0x05XX` — Mail. OGIT `ogit:Email`; consumed by spear (the mail hub).
     Mail,
     /// `0x07XX` — OSINT (open-source intelligence).
     Osint,
@@ -2064,11 +2061,8 @@ pub mod class_ids {
 
     // ── 0x05XX — Mail domain ──
 
-    /// `mailbox` (`0x0501`) — one mailbox. Access follows the directory object
-    /// that owns it.
-    pub const MAILBOX: u16 = 0x0501;
-    /// `mail_message` (`0x0502`) — one message in a mailbox.
-    pub const MAIL_MESSAGE: u16 = 0x0502;
+    /// `email` (`0x0501`) — one email message. OGIT `ogit:Email`.
+    pub const EMAIL: u16 = 0x0501;
 
     // ── 0x08XX — OCR domain (document extraction; the Tesseract-rs arc) ──
     // Class-level container KINDS only: the concept slots name the container
@@ -2389,8 +2383,7 @@ pub mod class_ids {
         ("weather_cell", WEATHER_CELL),
         ("weather_static_cell", WEATHER_STATIC_CELL),
         // 0x05XX — Mail
-        ("mailbox", MAILBOX),
-        ("mail_message", MAIL_MESSAGE),
+        ("email", EMAIL),
         // 0x07XX — OSINT: ZERO vocabulary rows BY DESIGN (operator ruling
         // 2026-07-02; see the CODEBOOK 0x07XX section note). No entries
         // follow — OGAR vocabulary carries no OSINT concept names.
@@ -2526,7 +2519,7 @@ pub mod class_ids {
             // Pin the number here so a bump is never silent.
             assert_eq!(
                 ALL.len(),
-                100,
+                99,
                 "class_ids::ALL count changed — update this pin AND land the \
                  corresponding row in lance-graph's \
                  crates/lance-graph-contract/src/ogar_codebook.rs::CODEBOOK \
@@ -3353,8 +3346,7 @@ pub fn all_promoted_classes() -> Vec<Class> {
         // 0x08XX — OCR arm (9 container kinds), in class_ids::ALL order.
         weather_cell(),
         weather_static_cell(),
-        mailbox(),
-        mail_message(),
+        email(),
         unicharset(),
         recoder(),
         charset(),
@@ -5059,25 +5051,16 @@ pub fn weather_static_cell() -> Class {
 }
 
 // ─────────────────────────────────────────────────────────────────────
-// 0x05XX — Mail canonical builders. Identity only; the message columns live
-// in the consumer's ClassView (spear's `messages` Lance schema).
+// 0x05XX — Mail canonical builders. Identity only; the columns live in the
+// consumer's ClassView (spear's `messages` Lance schema).
 // ─────────────────────────────────────────────────────────────────────
 
-/// `mailbox` (`0x0501`) — one mailbox.
+/// `email` (`0x0501`) — one email message. OGIT `ogit:Email`.
 #[must_use]
-pub fn mailbox() -> Class {
-    let mut c = Class::new("Mailbox");
+pub fn email() -> Class {
+    let mut c = Class::new("Email");
     c.language = Language::Unknown;
-    c.canonical_concept = Some("mailbox".to_string());
-    c
-}
-
-/// `mail_message` (`0x0502`) — one message in a mailbox.
-#[must_use]
-pub fn mail_message() -> Class {
-    let mut c = Class::new("MailMessage");
-    c.language = Language::Unknown;
-    c.canonical_concept = Some("mail_message".to_string());
+    c.canonical_concept = Some("email".to_string());
     c
 }
 
@@ -7282,13 +7265,12 @@ mod mail_classid_mint_tests {
 
     #[test]
     fn mail_domain_and_codebook_resolve() {
-        for id in [class_ids::MAILBOX, class_ids::MAIL_MESSAGE] {
-            assert_eq!(canonical_concept_domain(id), ConceptDomain::Mail);
-        }
-        assert_eq!(canonical_concept_id("mailbox"), Some(0x0501));
-        assert_eq!(canonical_concept_id("mail_message"), Some(0x0502));
-        assert_eq!(mailbox().canonical_id(), Some(class_ids::MAILBOX));
-        assert_eq!(mail_message().canonical_id(), Some(class_ids::MAIL_MESSAGE));
+        assert_eq!(
+            canonical_concept_domain(class_ids::EMAIL),
+            ConceptDomain::Mail
+        );
+        assert_eq!(canonical_concept_id("email"), Some(0x0501));
+        assert_eq!(email().canonical_id(), Some(class_ids::EMAIL));
         // 0x06 stays unassigned.
         assert_eq!(canonical_concept_domain(0x0600), ConceptDomain::Unassigned);
     }
diff --git a/crates/ogar-vocab/src/ports.rs b/crates/ogar-vocab/src/ports.rs
index 7b68b9f3..4b7c649e 100644
--- a/crates/ogar-vocab/src/ports.rs
+++ b/crates/ogar-vocab/src/ports.rs
@@ -641,8 +641,9 @@ pub const WEATHERNEXT_ALIASES: &[(&str, u16)] = &[
 
 // ── Spear (the mail hub) port ────────────────────────────────────────
 
-/// Spear's `PortSpec` over the shared Mail (`0x05XX`) concepts. `0x000A` is
-/// Spear's render skin; the mailbox and message meanings stay in the high u16.
+/// Spear's `PortSpec`: its public names onto canon concepts — mail onto
+/// `email` (`0x0501`, OGIT `ogit:Email`), documents and drive items onto the
+/// existing `document` (`0x080B`). `0x000A` is Spear's render skin.
 pub struct SpearPort;
 
 impl PortSpec for SpearPort {
@@ -656,8 +657,10 @@ impl PortSpec for SpearPort {
 
 /// Spear's names for the shared mail concepts.
 pub const SPEAR_ALIASES: &[(&str, u16)] = &[
-    ("Mailbox", class_ids::MAILBOX),
-    ("Message", class_ids::MAIL_MESSAGE),
+    ("Email", class_ids::EMAIL),
+    ("Message", class_ids::EMAIL),
+    ("Document", class_ids::DOCUMENT),
+    ("DriveItem", class_ids::DOCUMENT),
 ];
 
 #[cfg(test)]
@@ -667,12 +670,13 @@ mod tests {
 
     #[test]
     fn spear_classview_composes_canon_high_custom_low() {
-        assert_eq!(SpearPort::class_id("Mailbox"), Some(0x0501));
-        assert_eq!(SpearPort::class_id("Message"), Some(0x0502));
-        let mailbox = render_classid(SpearPort::APP_PREFIX, class_ids::MAILBOX);
-        assert_eq!(mailbox, 0x0501_000A);
-        assert_eq!(concept_of(mailbox), 0x0501);
-        assert_eq!(app_of(mailbox), 0x000A);
+        assert_eq!(SpearPort::class_id("Email"), Some(0x0501));
+        assert_eq!(SpearPort::class_id("Message"), Some(0x0501));
+        assert_eq!(SpearPort::class_id("DriveItem"), Some(0x080B));
+        let email = render_classid(SpearPort::APP_PREFIX, class_ids::EMAIL);
+        assert_eq!(email, 0x0501_000A);
+        assert_eq!(concept_of(email), 0x0501);
+        assert_eq!(app_of(email), 0x000A);
     }
 
     #[test]

From da8995d83b4e537a6068047596b738f651ccc8ab Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Thu, 8 Oct 2026 20:04:34 +0000
Subject: [PATCH 4/5] vocab: email moves into the IAM domain (0x0B05); count
 fuse removed

email is OGIT ogit:Email and sits in 0x0BXX above the AuthStore profiles,
so no Mail domain is opened. Per HOTPLUG-MIGRATION-GUIDE step 4 the global
ALL.len() count pins are deleted: lance-graph-ogar's assert_codebook_parity
checks the full bijection, and MirrorDrift reports drift per plug.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G22yT6htkcdyXsihxxXdrg
---
 crates/ogar-class-view/src/lib.rs            |  2 +-
 crates/ogar-vocab/src/capability_registry.rs |  1 -
 crates/ogar-vocab/src/lib.rs                 | 84 +++++++-------------
 crates/ogar-vocab/src/ports.rs               | 10 +--
 docs/APP-CLASS-CODEBOOK-LAYOUT.md            |  4 +-
 5 files changed, 35 insertions(+), 66 deletions(-)

diff --git a/crates/ogar-class-view/src/lib.rs b/crates/ogar-class-view/src/lib.rs
index 3ba09e9d..31ca56d9 100644
--- a/crates/ogar-class-view/src/lib.rs
+++ b/crates/ogar-class-view/src/lib.rs
@@ -233,7 +233,6 @@ fn all_canonical_classes() -> Vec<(&'static str, Class)> {
         // manifest, not promoted into the shared OGAR schema.
         ("weather_cell", weather_cell()),
         ("weather_static_cell", weather_static_cell()),
-        ("email", email()),
         // ── 0x08XX — OCR (container kinds; content stays in content stores) ──
         ("unicharset", unicharset()),
         ("recoder", recoder()),
@@ -269,6 +268,7 @@ fn all_canonical_classes() -> Vec<(&'static str, Class)> {
         ("auth_zitadel", auth_zitadel()),
         ("auth_zanzibar", auth_zanzibar()),
         ("auth_ory_keto", auth_ory_keto()),
+        ("email", email()),
         // ── 0x0DXX — HR cluster (closes the final 4-of-11 odoo-rs #14 gap) ──
         ("hr_employee", hr_employee()),
         ("hr_department", hr_department()),
diff --git a/crates/ogar-vocab/src/capability_registry.rs b/crates/ogar-vocab/src/capability_registry.rs
index ae1d24af..8203e4f2 100644
--- a/crates/ogar-vocab/src/capability_registry.rs
+++ b/crates/ogar-vocab/src/capability_registry.rs
@@ -377,7 +377,6 @@ fn resolve_concept_row(id: u16) -> Option<(&'static str, u16)> {
 mod the_canon_carries_no_palette_rows {
     #[test]
     fn no_0x17xx_row_reached_the_globally_mirrored_codebook() {
-        assert_eq!(crate::class_ids::ALL.len(), 99);
         for (_, id) in crate::class_ids::ALL {
             assert_ne!(*id >> 8, 0x17, "a 0x17XX row reached the codebook");
         }
diff --git a/crates/ogar-vocab/src/lib.rs b/crates/ogar-vocab/src/lib.rs
index e9e0eba5..7cb58efa 100644
--- a/crates/ogar-vocab/src/lib.rs
+++ b/crates/ogar-vocab/src/lib.rs
@@ -1106,7 +1106,7 @@ impl Class {
 ///   0x02XX  commerce / ERP    (OSB ↔ Odoo cross-curator)
 ///   0x03XX  Ontology          (OBO biomedical reference: MONDO/HPO/Uberon/PATO/RO — zero rows here; concepts in ogar-obo)
 ///   0x04XX  Weather / Atmosphere (forecast + atmospheric reference cells)
-///   0x05XX  Mail              (OGIT `ogit:Email`; consumed by spear)
+///   0x05XX  unassigned
 ///   0x06XX  unassigned
 ///   0x07XX  reserved: OSINT
 ///   0x08XX  OCR               (container kinds: unicharset/recoder/charset)
@@ -1240,11 +1240,6 @@ const CODEBOOK: &[(&str, u16)] = &[
     // ClassView selection remains in the low u16 of the full classid.
     ("weather_cell", 0x0401),
     ("weather_static_cell", 0x0402),
-    // ── 0x05XX — Mail domain ──
-    // OGIT `ogit:Email` (SGO; optional attributes from the
-    // `EmailCorrespondance` namespace). Mailboxes, folders, flags and threads
-    // are columns of an email row, not concepts of their own.
-    ("email", 0x0501),
     // ── 0x07XX — OSINT domain: ZERO vocabulary rows BY DESIGN (operator
     // ruling 2026-07-02, corrects PR #145's two hallucinated concept mints
     // `osint_system@0x0700` / `osint_person@0x0701`). Within the OSINT domain
@@ -1350,6 +1345,12 @@ const CODEBOOK: &[(&str, u16)] = &[
     ("auth_zitadel", 0x0B02),
     ("auth_zanzibar", 0x0B03),
     ("auth_ory_keto", 0x0B04),
+    // `email` (`0x0B05`) — OGIT `ogit:Email` (SGO; optional attributes from
+    // the `EmailCorrespondance` namespace). Sits in the IAM domain above the
+    // AuthStore profiles: a mailbox's access follows its owner in the
+    // directory. Mailboxes, folders, flags and threads are columns of an
+    // email row, not concepts of their own. Consumed by spear (`SpearPort`).
+    ("email", 0x0B05),
     // ── 0x0CXX — Automation domain (the HIRO IT-automation stack) ──
     // One domain spanning the MARS structural CMDB (`ogit.MARS:` —
     // Application/Resource/Software/Machine, the A→R→S→M dependsOn backbone)
@@ -1484,8 +1485,6 @@ pub enum ConceptDomain {
     /// `0x04XX` — Weather / Atmosphere. Shared atmospheric and forecast-grid
     /// concepts; public environmental reference data, not an OSM extension.
     Weather,
-    /// `0x05XX` — Mail. OGIT `ogit:Email`; consumed by spear (the mail hub).
-    Mail,
     /// `0x07XX` — OSINT (open-source intelligence).
     Osint,
     /// `0x08XX` — OCR (optical character recognition / document
@@ -1761,7 +1760,7 @@ pub enum ConceptDomain {
     /// reads the compartment off the key (`classid >> 24`) instead of looking
     /// it up.
     Form,
-    /// Any high-byte slot not yet assigned a domain (`0x06XX`,
+    /// Any high-byte slot not yet assigned a domain (`0x05XX`–`0x06XX`,
     /// `0x10XX`–`0x16XX`, `0x18XX`–`0xBFXX`, `0xC2XX`–`0xC3XX`,
     /// `0xC5XX`, `0xC7XX`+).
     Unassigned,
@@ -1777,7 +1776,6 @@ pub fn canonical_concept_domain(id: u16) -> ConceptDomain {
         0x02 => ConceptDomain::Commerce,
         0x03 => ConceptDomain::Ontology,
         0x04 => ConceptDomain::Weather,
-        0x05 => ConceptDomain::Mail,
         0x07 => ConceptDomain::Osint,
         0x08 => ConceptDomain::Ocr,
         0x09 => ConceptDomain::Health,
@@ -2059,11 +2057,6 @@ pub mod class_ids {
     /// geography-derived weather context, distinct from dynamic fields.
     pub const WEATHER_STATIC_CELL: u16 = 0x0402;
 
-    // ── 0x05XX — Mail domain ──
-
-    /// `email` (`0x0501`) — one email message. OGIT `ogit:Email`.
-    pub const EMAIL: u16 = 0x0501;
-
     // ── 0x08XX — OCR domain (document extraction; the Tesseract-rs arc) ──
     // Class-level container KINDS only: the concept slots name the container
     // types the Core resolves — never their content. The 112 unichars of a
@@ -2215,6 +2208,9 @@ pub mod class_ids {
     pub const AUTH_ZANZIBAR: u16 = 0x0B03;
     /// `auth_ory_keto` (`0x0B04`) — Ory Keto provider profile.
     pub const AUTH_ORY_KETO: u16 = 0x0B04;
+    /// `email` (`0x0B05`) — one email message. OGIT `ogit:Email`. In the IAM
+    /// domain, above the AuthStore profiles.
+    pub const EMAIL: u16 = 0x0B05;
 
     // ── 0x0DXX — HR domain (employment / org / contracts) ──
 
@@ -2382,8 +2378,6 @@ pub mod class_ids {
         // 0x04XX — Weather / Atmosphere
         ("weather_cell", WEATHER_CELL),
         ("weather_static_cell", WEATHER_STATIC_CELL),
-        // 0x05XX — Mail
-        ("email", EMAIL),
         // 0x07XX — OSINT: ZERO vocabulary rows BY DESIGN (operator ruling
         // 2026-07-02; see the CODEBOOK 0x07XX section note). No entries
         // follow — OGAR vocabulary carries no OSINT concept names.
@@ -2422,6 +2416,7 @@ pub mod class_ids {
         ("auth_zitadel", AUTH_ZITADEL),
         ("auth_zanzibar", AUTH_ZANZIBAR),
         ("auth_ory_keto", AUTH_ORY_KETO),
+        ("email", EMAIL),
         // 0x0DXX — HR (employment / org / contracts; closes the final
         // 4-of-11 cross-axis gap from odoo-rs PR #14)
         ("hr_employee", HR_EMPLOYEE),
@@ -2502,32 +2497,6 @@ pub mod class_ids {
             }
         }
 
-        #[test]
-        fn count_fuse_matches_lance_graph_ogar_mirror() {
-            // OGAR-side half of a two-sided drift check. The compile-time
-            // `lance_graph_ogar::parity::COUNT_FUSE` this test's name
-            // originally referenced was REMOVED 2026-08-14 in favour of the
-            // hot-plug plug-and-play pattern (`lance-graph-ogar/src/lib.rs`,
-            // `E-HOTPLUG-CONSUMER-MIGRATION-1`) — there is no longer an
-            // automated compile-time assert on the lance-graph side.
-            // `lance_graph_contract::ogar_codebook::CODEBOOK` (the zero-dep
-            // wire mirror) is now kept honest ONLY by: (a) this pinned count,
-            // which makes a drift visible in THIS repo's CI the moment
-            // `class_ids::ALL` changes, and (b) a human landing the mirror
-            // row in the SAME arc as the mint (OGAR-DOC-W4-BUILD-SPEC.md
-            // §W4 capstone gate G17/G19) — there is no third safety net.
-            // Pin the number here so a bump is never silent.
-            assert_eq!(
-                ALL.len(),
-                99,
-                "class_ids::ALL count changed — update this pin AND land the \
-                 corresponding row in lance-graph's \
-                 crates/lance-graph-contract/src/ogar_codebook.rs::CODEBOOK \
-                 mirror (COUNT_FUSE was removed 2026-08-14; nothing else will \
-                 catch a stale mirror) in the same PR-arc",
-            );
-        }
-
         #[test]
         fn divergent_curator_names_share_one_constant() {
             // The whole point of the codebook, in code: a Redmine Issue
@@ -3346,7 +3315,6 @@ pub fn all_promoted_classes() -> Vec<Class> {
         // 0x08XX — OCR arm (9 container kinds), in class_ids::ALL order.
         weather_cell(),
         weather_static_cell(),
-        email(),
         unicharset(),
         recoder(),
         charset(),
@@ -3383,6 +3351,7 @@ pub fn all_promoted_classes() -> Vec<Class> {
         auth_zitadel(),
         auth_zanzibar(),
         auth_ory_keto(),
+        email(),
         // 0x0DXX — HR arm
         hr_employee(),
         hr_department(),
@@ -5051,11 +5020,11 @@ pub fn weather_static_cell() -> Class {
 }
 
 // ─────────────────────────────────────────────────────────────────────
-// 0x05XX — Mail canonical builders. Identity only; the columns live in the
+// `email` (`0x0B05`, IAM domain). Identity only; the columns live in the
 // consumer's ClassView (spear's `messages` Lance schema).
 // ─────────────────────────────────────────────────────────────────────
 
-/// `email` (`0x0501`) — one email message. OGIT `ogit:Email`.
+/// `email` (`0x0B05`) — one email message. OGIT `ogit:Email`.
 #[must_use]
 pub fn email() -> Class {
     let mut c = Class::new("Email");
@@ -6080,11 +6049,10 @@ mod tests {
         // lives in ogar-obo; plug-and-play, never pulls into ERP consumers).
         assert_eq!(canonical_concept_domain(0x0300), ConceptDomain::Ontology);
         assert_eq!(canonical_concept_domain(0x03AB), ConceptDomain::Ontology);
-        // Weather / Atmosphere block (0x04), Mail (0x05), then still-unassigned 0x06.
+        // Weather / Atmosphere block (0x04), then still-unassigned 0x05-0x06.
         assert_eq!(canonical_concept_domain(0x0400), ConceptDomain::Weather);
         assert_eq!(canonical_concept_domain(0x0401), ConceptDomain::Weather);
-        assert_eq!(canonical_concept_domain(0x0500), ConceptDomain::Mail);
-        assert_eq!(canonical_concept_domain(0x05FF), ConceptDomain::Mail);
+        assert_eq!(canonical_concept_domain(0x0500), ConceptDomain::Unassigned);
         assert_eq!(canonical_concept_domain(0x0600), ConceptDomain::Unassigned);
         // HR block (0x0D).
         assert_eq!(canonical_concept_domain(0x0D00), ConceptDomain::HR);
@@ -6153,6 +6121,7 @@ mod tests {
             ("auth_zitadel", 0x0B02),
             ("auth_zanzibar", 0x0B03),
             ("auth_ory_keto", 0x0B04),
+            ("email", 0x0B05),
         ] {
             assert_eq!(
                 canonical_concept_id(concept),
@@ -6161,8 +6130,8 @@ mod tests {
             );
             assert_eq!(canonical_concept_domain(id), ConceptDomain::Auth);
         }
-        // The four preminted profiles are the whole Auth block today.
-        assert_eq!(concepts_in_domain(ConceptDomain::Auth).count(), 4);
+        // The four preminted profiles plus `email` are the Auth block today.
+        assert_eq!(concepts_in_domain(ConceptDomain::Auth).count(), 5);
     }
 
     #[test]
@@ -6313,7 +6282,7 @@ mod tests {
         assert_eq!(concepts_in_domain(ConceptDomain::Commerce).count(), 11);
         assert_eq!(concepts_in_domain(ConceptDomain::ProjectMgmt).count(), 26);
         assert_eq!(concepts_in_domain(ConceptDomain::Anatomy).count(), 4);
-        assert_eq!(concepts_in_domain(ConceptDomain::Auth).count(), 4);
+        assert_eq!(concepts_in_domain(ConceptDomain::Auth).count(), 5);
         assert_eq!(concepts_in_domain(ConceptDomain::Automation).count(), 9);
         // Every yielded Automation id really is in-domain (0x0CXX).
         let automation: Vec<&str> = concepts_in_domain(ConceptDomain::Automation)
@@ -7264,14 +7233,15 @@ mod mail_classid_mint_tests {
     use super::*;
 
     #[test]
-    fn mail_domain_and_codebook_resolve() {
+    fn email_sits_in_the_iam_domain_above_the_auth_profiles() {
         assert_eq!(
             canonical_concept_domain(class_ids::EMAIL),
-            ConceptDomain::Mail
+            ConceptDomain::Auth
         );
-        assert_eq!(canonical_concept_id("email"), Some(0x0501));
+        assert!(class_ids::EMAIL > class_ids::AUTH_ORY_KETO);
+        assert_eq!(canonical_concept_id("email"), Some(0x0B05));
         assert_eq!(email().canonical_id(), Some(class_ids::EMAIL));
-        // 0x06 stays unassigned.
-        assert_eq!(canonical_concept_domain(0x0600), ConceptDomain::Unassigned);
+        // No Mail domain was opened for it.
+        assert_eq!(canonical_concept_domain(0x0501), ConceptDomain::Unassigned);
     }
 }
diff --git a/crates/ogar-vocab/src/ports.rs b/crates/ogar-vocab/src/ports.rs
index 4b7c649e..16f504b3 100644
--- a/crates/ogar-vocab/src/ports.rs
+++ b/crates/ogar-vocab/src/ports.rs
@@ -642,7 +642,7 @@ pub const WEATHERNEXT_ALIASES: &[(&str, u16)] = &[
 // ── Spear (the mail hub) port ────────────────────────────────────────
 
 /// Spear's `PortSpec`: its public names onto canon concepts — mail onto
-/// `email` (`0x0501`, OGIT `ogit:Email`), documents and drive items onto the
+/// `email` (`0x0B05`, OGIT `ogit:Email`), documents and drive items onto the
 /// existing `document` (`0x080B`). `0x000A` is Spear's render skin.
 pub struct SpearPort;
 
@@ -670,12 +670,12 @@ mod tests {
 
     #[test]
     fn spear_classview_composes_canon_high_custom_low() {
-        assert_eq!(SpearPort::class_id("Email"), Some(0x0501));
-        assert_eq!(SpearPort::class_id("Message"), Some(0x0501));
+        assert_eq!(SpearPort::class_id("Email"), Some(0x0B05));
+        assert_eq!(SpearPort::class_id("Message"), Some(0x0B05));
         assert_eq!(SpearPort::class_id("DriveItem"), Some(0x080B));
         let email = render_classid(SpearPort::APP_PREFIX, class_ids::EMAIL);
-        assert_eq!(email, 0x0501_000A);
-        assert_eq!(concept_of(email), 0x0501);
+        assert_eq!(email, 0x0B05_000A);
+        assert_eq!(concept_of(email), 0x0B05);
         assert_eq!(app_of(email), 0x000A);
     }
 
diff --git a/docs/APP-CLASS-CODEBOOK-LAYOUT.md b/docs/APP-CLASS-CODEBOOK-LAYOUT.md
index da98ce3d..ecc3821e 100644
--- a/docs/APP-CLASS-CODEBOOK-LAYOUT.md
+++ b/docs/APP-CLASS-CODEBOOK-LAYOUT.md
@@ -171,7 +171,7 @@ materialised until the app mints its first private class).
 
 | `lo u16` | App / namespace | Core domain(s) it consumes | Private codebook today? |
 |---|---|---|---|
-| `0x0000` | **Shared canonical core** | all (`0x01/02/04/05/07/08/09` + `0x0A` anatomy + `0x0B` auth + `0x0C` automation) | n/a (this *is* core) |
+| `0x0000` | **Shared canonical core** | all (`0x01/02/04/07/08/09` + `0x0A` anatomy + `0x0B` auth + `0x0C` automation) | n/a (this *is* core) |
 | `0x0001` | OpenProject (openproject-nexgen-rs) | `0x01` project-mgmt | **no** — maps onto core |
 | `0x0002` | Odoo | `0x02` commerce | **no** — maps onto core (converge `od-ontology`) |
 | `0x0003` | WoA / woa-rs | `0x02` commerce (work orders) | **no** — maps onto core |
@@ -181,7 +181,7 @@ materialised until the app mints its first private class).
 | `0x0007` | Redmine | `0x01` project-mgmt | **no** — same concepts as OpenProject, own templates |
 | `0x0008` | OpenStreetMap (openstreetmap-website-rs) | `0x0F` geo | **no** — maps entirely onto core |
 | `0x0009` | WeatherNext / weathernext-rs | `0x04` weather / atmosphere | **no** — maps onto core |
-| `0x000A` | Spear (mail hub) | `0x05` mail | **no** — maps onto core |
+| `0x000A` | Spear (mail hub) | `0x0B` IAM (`email` `0x0B05`) + `0x08` (`document`) | **no** — maps onto core |
 | `0x00A0` | (reserved) future app block | — | — |
 
 > **OpenProject (`0x0001`) and Redmine (`0x0007`) are the showcase:**

From 51f5155eb34a0d47b52cafdafea6f5de27811f63 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Thu, 8 Oct 2026 20:18:08 +0000
Subject: [PATCH 5/5] vocab: const-assert the email ordering (clippy
 assertions_on_constants)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G22yT6htkcdyXsihxxXdrg
---
 crates/ogar-vocab/src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/ogar-vocab/src/lib.rs b/crates/ogar-vocab/src/lib.rs
index 7cb58efa..2c95c523 100644
--- a/crates/ogar-vocab/src/lib.rs
+++ b/crates/ogar-vocab/src/lib.rs
@@ -7238,7 +7238,7 @@ mod mail_classid_mint_tests {
             canonical_concept_domain(class_ids::EMAIL),
             ConceptDomain::Auth
         );
-        assert!(class_ids::EMAIL > class_ids::AUTH_ORY_KETO);
+        const { assert!(class_ids::EMAIL > class_ids::AUTH_ORY_KETO) };
         assert_eq!(canonical_concept_id("email"), Some(0x0B05));
         assert_eq!(email().canonical_id(), Some(class_ids::EMAIL));
         // No Mail domain was opened for it.