chore(release): 1.13.0 — a default address on each consumer grant

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.pql/changelog/ticket_history/2026-10.sql

@@ -91,3 +91,5 @@ INSERT INTO ticket_history (ticket_record_id, field, old_value, new_value, chang
 
 **Split 2026-10-19:** the short outward ids and the owner tenant (amending 005), and the Book''s tenant filter, moved to **T-7**, so core-api can release safely. T-2 keeps the remaining verbs and work/personal as tags.', NULL, '2026-10-19 14:06:27', '2026-10-19 14:06:27.325', '2026-10-19 14:06:27.325', NULL, '0e233f93ee1e85162d05109749d33032', 2) ON CONFLICT(hash) DO NOTHING;
 INSERT INTO ticket_history (ticket_record_id, field, old_value, new_value, changed_by, changed_at, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06GN8Z1FF1QDGR4QE4405AP8GC', 'status', 'backlog', 'done', NULL, '2026-10-19 14:51:47', '2026-10-19 14:51:47.496', '2026-10-19 14:51:47.496', NULL, '625ca10cfc9bcaf576a2fd52a3fe2792', 2) ON CONFLICT(hash) DO NOTHING;
+INSERT INTO ticket_history (ticket_record_id, field, old_value, new_value, changed_by, changed_at, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06GN6KV13SSS2KZP10SKTT903C', 'status', 'backlog', 'done', NULL, '2026-10-19 15:48:03', '2026-10-19 15:48:03.951', '2026-10-19 15:48:03.951', NULL, '51baa7767d5176263b817493d40ff5e9', 2) ON CONFLICT(hash) DO NOTHING;
+INSERT INTO ticket_history (ticket_record_id, field, old_value, new_value, changed_by, changed_at, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06GN99CB552PSF82EE2P8PJZP0', 'status', 'backlog', 'done', NULL, '2026-10-19 15:48:04', '2026-10-19 15:48:04.079', '2026-10-19 15:48:04.079', NULL, '252442ffd3a53fbb45bfdd6b24d2752c', 2) ON CONFLICT(hash) DO NOTHING;

.pql/changelog/ticket_idmap/2026-10.sql

@@ -6,3 +6,6 @@ INSERT INTO ticket_idmap (record_id, ticket_id, created_at, updated_at, deleted_
 INSERT INTO ticket_idmap (record_id, ticket_id, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06GN8NBWVQ53ZX7WMZNE5GJJP4', 'T-6', '2026-10-19 13:24:11.102', '2026-10-19 13:24:11.102', NULL, 'f6351f2d6190ae5fbd9e55e6eadc04e5', 2) ON CONFLICT(record_id) DO UPDATE SET ticket_id=excluded.ticket_id, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at >= ticket_idmap.updated_at;
 INSERT INTO ticket_idmap (record_id, ticket_id, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06GN8Z1FF1QDGR4QE4405AP8GC', 'T-7', '2026-10-19 14:06:27.193', '2026-10-19 14:06:27.193', NULL, '09267e8234ec21c6d75767d7cd21bb51', 2) ON CONFLICT(record_id) DO UPDATE SET ticket_id=excluded.ticket_id, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at >= ticket_idmap.updated_at;
 INSERT INTO ticket_idmap (record_id, ticket_id, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06GN99CB552PSF82EE2P8PJZP0', 'T-8', '2026-10-19 14:51:37.641', '2026-10-19 14:51:37.641', NULL, 'd8c7f6122652cb1c3e448f1adedd54ab', 2) ON CONFLICT(record_id) DO UPDATE SET ticket_id=excluded.ticket_id, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at >= ticket_idmap.updated_at;
+INSERT INTO ticket_idmap (record_id, ticket_id, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06GNA8JCWVP31DKSE7F4EMF6G4', 'T-9', '2026-10-19 17:07:53.702', '2026-10-19 17:07:53.702', NULL, 'f7caf295773331bd290e8f9fd196ce6d', 2) ON CONFLICT(record_id) DO UPDATE SET ticket_id=excluded.ticket_id, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at >= ticket_idmap.updated_at;
+INSERT INTO ticket_idmap (record_id, ticket_id, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06GNA9K6GSTB09D1SWV649DZ3M', 'T-10', '2026-10-19 17:12:22.406', '2026-10-19 17:12:22.406', NULL, '3bd35329f2ace334c5ef64d8e52ae9cf', 2) ON CONFLICT(record_id) DO UPDATE SET ticket_id=excluded.ticket_id, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at >= ticket_idmap.updated_at;
+INSERT INTO ticket_idmap (record_id, ticket_id, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06GNBAZ6KW704AF07ZBR3YC868', 'T-11', '2026-10-19 19:38:11.488', '2026-10-19 19:38:11.488', NULL, '8150ae921a6b2682265917fb669c67e0', 2) ON CONFLICT(record_id) DO UPDATE SET ticket_id=excluded.ticket_id, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at >= ticket_idmap.updated_at;

.pql/changelog/tickets/2026-10.sql

@@ -94,3 +94,35 @@ Today a tenant is an unchecked string: the Office header or a JWT''s `tatlock_us
 
 **Not in v1:** write routes for provisioning (T-195 on the workspace board adds them, or an operator verb); per-consumer verb classes (workspace T-184 — a column on `tenant_consumers` when it lands).', 'backlog', 'high', NULL, NULL, NULL, '2026-10-19 14:51:37.641', '2026-10-19 14:51:37.641', NULL, '756a467f5dc4a84c7ee9080ef21ca5fb', 2) ON CONFLICT(record_id) DO UPDATE SET type=excluded.type, parent_record_id=excluded.parent_record_id, title=excluded.title, description=excluded.description, status=excluded.status, priority=excluded.priority, assigned_to=excluded.assigned_to, team=excluded.team, decision_ref=excluded.decision_ref, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at >= tickets.updated_at;
 INSERT INTO tickets (record_id, type, parent_record_id, title, description, status, priority, assigned_to, team, decision_ref, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06GN8Z1FF1QDGR4QE4405AP8GC', 'task', NULL, 'The Book''s final schema and tenant boundary, before 005''s first release', 'The Book''s final schema and its tenant boundary, before core-api''s first release applies migration 005 to production. Split from T-2 (whose remaining verbs stay there). Amend 005 — never run in production — rather than add a migration: per-tenant short outward numbers ("Task 12", workspace D-67), an owner tenant on every record (D-73), and every Book route filtered by it, so the routes are safe to expose the moment they deploy.', 'done', 'high', NULL, NULL, NULL, '2026-10-19 14:06:27.192', '2026-10-19 14:51:47.496', NULL, '8797eb16319aa33c8317b0a1f0defc3d', 2) ON CONFLICT(record_id) DO UPDATE SET type=excluded.type, parent_record_id=excluded.parent_record_id, title=excluded.title, description=excluded.description, status=excluded.status, priority=excluded.priority, assigned_to=excluded.assigned_to, team=excluded.team, decision_ref=excluded.decision_ref, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at >= tickets.updated_at;
+INSERT INTO tickets (record_id, type, parent_record_id, title, description, status, priority, assigned_to, team, decision_ref, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06GN6KV13SSS2KZP10SKTT903C', 'task', NULL, 'Caller auth, locked housekeeping routes, and the Book domain', 'Caller authentication for service callers, the housekeeping routes locked behind it, and the `book` domain with migration 005 — the first half of the household''s Office storage. Driven by workspace T-166; the design is workspace D-64…D-72 (`cladmin/governance/decisions/office.md`), above all D-68 (the Book lives here), D-70 (the verbs) and D-71.
+
+- `require_caller()`: the Office''s service key with a forwarded identity, the Scheduler''s key (dispatch only), else an Authentik JWT. On every new route and every housekeeping route — core-api is internet-facing at api.schweitz.net with no forward-auth, and `/housekeeping/devices` answers unauthenticated today.
+- `src/domains/book/` and migration 005: records (note, task, decision, question, rejected), tags with system tags `work`/`personal`, links, attachments, append-only events.
+
+**Code done 2026-10-19**, commits `04ec54b`…`63feb88` (round core-api-T-1-001): `make test` 381 → 430 passed; migration 005 round-trips on `core_api_test`; production `core_api` still at 004; mutation-checked (key compare, the housekeeping lock, the append-only trigger). Follow-ups: T-2 (remaining verbs, short ids, scope tags — amends 005 before its first deploy), T-3 (alembic target). Held for the milestone.', 'done', 'high', NULL, NULL, NULL, '2026-10-19 08:37:53.566', '2026-10-19 15:48:03.950', NULL, '4f256fd107a235ce29e881208eca9fbc', 2) ON CONFLICT(record_id) DO UPDATE SET type=excluded.type, parent_record_id=excluded.parent_record_id, title=excluded.title, description=excluded.description, status=excluded.status, priority=excluded.priority, assigned_to=excluded.assigned_to, team=excluded.team, decision_ref=excluded.decision_ref, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at >= tickets.updated_at;
+INSERT INTO tickets (record_id, type, parent_record_id, title, description, status, priority, assigned_to, team, decision_ref, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06GN99CB552PSF82EE2P8PJZP0', 'story', NULL, 'The tenant registry: tenants, consumer grants, and one enforcement point', 'The tenant registry: one table that says which tenants exist, which consumers may act in each, and whether a tenant is active — the anchor every service''s tenancy conforms to (workspace D-73).
+
+Today a tenant is an unchecked string: the Office header or a JWT''s `tatlock_user` claim is trusted as-is, and the Book and the Scribe file rows under whatever value arrives. A typo''d claim opens a fresh, empty namespace instead of being refused.
+
+**Tables (migration 007):**
+- `tenants` — `id` (the slug, the value of `tatlock_user`; same pattern `_require_office_tenant` accepts), `display_name`, `kind` (`household` | `person` | `test`), `status` (`active` | `suspended`), timestamps. Seeded: `jpmschweitzer` (household), `llm_tester` (test).
+- `tenant_consumers` — a grant: consumer X may act in tenant Y. PK `(tenant_id, consumer)`. Seeded: `office-claude` in both seeded tenants.
+- Foreign keys from every `owner_tenant` column in the Book and the Scribe to `tenants.id`.
+
+**Enforcement:** every tenant-scoped operation goes through one helper. No tenant → 400 `tenant_required`. Tenant unknown → 403 `tenant_unknown`. Tenant suspended → 403 `tenant_suspended`. Office caller whose consumer holds no grant in that tenant → 403 `consumer_not_granted`.
+
+**Read API, for other services to conform to:** `GET /tenants/me` (the caller''s own tenant and its consumer''s grant); `GET /tenants` (service callers without a tenant see all; a tenant-bearing caller sees only its own — the hard boundary).
+
+**Not in v1:** write routes for provisioning (T-195 on the workspace board adds them, or an operator verb); per-consumer verb classes (workspace T-184 — a column on `tenant_consumers` when it lands).', 'done', 'high', NULL, NULL, NULL, '2026-10-19 14:51:37.641', '2026-10-19 15:48:04.079', NULL, '4adf867d5e7e4424e6a2e97b53f958d1', 2) ON CONFLICT(record_id) DO UPDATE SET type=excluded.type, parent_record_id=excluded.parent_record_id, title=excluded.title, description=excluded.description, status=excluded.status, priority=excluded.priority, assigned_to=excluded.assigned_to, team=excluded.team, decision_ref=excluded.decision_ref, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at >= tickets.updated_at;
+INSERT INTO tickets (record_id, type, parent_record_id, title, description, status, priority, assigned_to, team, decision_ref, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06GNA8JCWVP31DKSE7F4EMF6G4', 'task', NULL, 'The mailbox answers by message number, so no client pages to find an entry', '`GET /scribe/mailbox` sorts unread first, then by id descending, behind one `before_id` cursor — two sort keys, one cursor. No cursor choice is safe in every case: paging below the last row is correct whenever a page holds a read entry, but a page of only unread entries (more than 200 unread) skips read entries with higher ids. Both clients that turn a message number into a mailbox entry — the Office (`src/systems/scribe.py` `_resolve_entry_id`) and `toj scribe mark` — page the mailbox to do it.
+
+**Fix:** a `message_id` query parameter on `GET /scribe/mailbox` that answers the caller''s own entry for that message (zero or one), so neither client pages. Optionally, a cursor that matches the sort (`before` over `(read, id)`) for the listing itself.
+
+Done when: both clients drop their paging for a single call, and a test seeds an old unread entry ahead of more than a page of read ones and finds a read entry beyond the first page.', 'backlog', 'medium', NULL, NULL, NULL, '2026-10-19 17:07:53.702', '2026-10-19 17:07:53.702', NULL, 'c6599dbbb04302146398615a0caf9e2d', 2) ON CONFLICT(record_id) DO UPDATE SET type=excluded.type, parent_record_id=excluded.parent_record_id, title=excluded.title, description=excluded.description, status=excluded.status, priority=excluded.priority, assigned_to=excluded.assigned_to, team=excluded.team, decision_ref=excluded.decision_ref, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at >= tickets.updated_at;
+INSERT INTO tickets (record_id, type, parent_record_id, title, description, status, priority, assigned_to, team, decision_ref, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06GNA9K6GSTB09D1SWV649DZ3M', 'task', NULL, 'Scribe messages number per tenant, like the Book', 'Scribe message numbers are global: the playground tenant''s first message was "message 2" because message 1 lives in the household''s tenant. That lets one tenant count another''s mail — a small leak through the hard boundary (workspace D-73), and exactly why the Book numbers per tenant (T-7). Give messages a per-tenant `number` the same way (`owner_tenant`, a per-tenant counter taken FOR UPDATE), answer every route with it, and accept it wherever a message id is taken today. A migration on live data: existing messages get numbers in id order per tenant.', 'backlog', 'medium', NULL, NULL, NULL, '2026-10-19 17:12:22.406', '2026-10-19 17:12:22.406', NULL, '3d3b298bf83b044360d3141137a259a6', 2) ON CONFLICT(record_id) DO UPDATE SET type=excluded.type, parent_record_id=excluded.parent_record_id, title=excluded.title, description=excluded.description, status=excluded.status, priority=excluded.priority, assigned_to=excluded.assigned_to, team=excluded.team, decision_ref=excluded.decision_ref, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at >= tickets.updated_at;
+INSERT INTO tickets (record_id, type, parent_record_id, title, description, status, priority, assigned_to, team, decision_ref, created_at, updated_at, deleted_at, hash, canonical_version) VALUES ('06GNBAZ6KW704AF07ZBR3YC868', 'story', NULL, 'A default address on each consumer grant, answered by /tenants/me', '**A default address per consumer grant**, so a client that keeps no MCP session (claude.ai''s connector) need not name itself on every call. The Office uses it when a call names no address and has no session binding (tatlock-office T-5).
+
+- `tenant_consumers.default_address` — nullable; a composite foreign key `(tenant_id, default_address)` → `scribe_addresses(owner_tenant, name)`, so a default always names a real address in the same tenant. The Office still checks the consumer owns it.
+- Migration 008 sets `jpmschweitzer` / `office-claude` → `claude-ai`; `llm_tester` / `office-claude` stays null.
+- `GET /tenants/me` answers `default_address` — the caller''s own consumer''s default, or null (user-kind callers carry no consumer: null).
+- No write route; set by migration until provisioning lands (workspace T-195).', 'backlog', 'high', NULL, NULL, NULL, '2026-10-19 19:38:11.488', '2026-10-19 19:38:11.488', NULL, '0bcc2ad2e1df4cc4410f73b9f55092ca', 2) ON CONFLICT(record_id) DO UPDATE SET type=excluded.type, parent_record_id=excluded.parent_record_id, title=excluded.title, description=excluded.description, status=excluded.status, priority=excluded.priority, assigned_to=excluded.assigned_to, team=excluded.team, decision_ref=excluded.decision_ref, updated_at=excluded.updated_at, deleted_at=excluded.deleted_at, hash=excluded.hash, canonical_version=excluded.canonical_version WHERE excluded.updated_at >= tickets.updated_at;

CHANGELOG.md

@@ -7,6 +7,22 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.13.0] - 2026-10-19
+
+### Added
+
+- **A default address on each consumer grant** (`tenant_consumers.default_address`,
+  migration 008, core-api T-11) — the Office's fallback when a call names no
+  address and holds no session binding, since claude.ai's connector keeps no
+  MCP session between tool calls. A composite foreign key
+  `(tenant_id, default_address)` -> `scribe_addresses(owner_tenant, name)`
+  ensures a default always names a real address in the same tenant.
+  `jpmschweitzer`/`office-claude` defaults to `claude-ai` where that address
+  already exists; every other grant stays null. `GET /tenants/me` answers it
+  for the caller's own consumer grant, or null for a user-kind caller or a
+  grant without one; `GET /tenants` is unchanged. No write route this round —
+  provisioning is later.
+
 ## [1.12.0] - 2026-10-19
 
 ### Added

alembic/versions/20261019_1700_008_add_default_address_to_tenant_consumers.py

@@ -0,0 +1,77 @@
+"""Add a default address to each consumer grant (core-api T-11)
+
+Revision ID: 008
+Revises: 007
+Create Date: 2026-10-19
+
+claude.ai's connector keeps no MCP session between tool calls, so the
+Office cannot remember which address a conversation chose. Each consumer
+grant now carries `default_address`: the Office uses it when a call names
+none and has no session binding (tatlock-office T-5 reads it).
+
+`tenant_consumers.default_address` is nullable, and a composite foreign
+key `(tenant_id, default_address)` -> `scribe_addresses(owner_tenant,
+name)` ensures a default always names a real address in the same tenant.
+Postgres's default `MATCH SIMPLE` means a NULL `default_address` never
+triggers the check, so an ungranted default is simply absent rather than
+a constraint violation waiting to happen.
+
+Data step: `jpmschweitzer`/`office-claude` defaults to `claude-ai` only if
+that address already exists at upgrade time - true in production, false
+in `core_api_test` (no scribe_addresses are seeded there), so the `UPDATE
+... WHERE EXISTS` must be - and is - a no-op rather than a failure when
+the address is absent. `llm_tester`/`office-claude` is not touched and
+stays null.
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = "008"
+down_revision: Union[str, None] = "007"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Add the column, bind it to scribe_addresses, then seed the one
+    production default the dossier specifies."""
+
+    op.add_column(
+        "tenant_consumers",
+        sa.Column("default_address", sa.String(length=63), nullable=True),
+    )
+    op.create_foreign_key(
+        "fk_tenant_consumers_default_address",
+        "tenant_consumers",
+        "scribe_addresses",
+        ["tenant_id", "default_address"],
+        ["owner_tenant", "name"],
+    )
+
+    # Only if claude-ai already exists in jpmschweitzer (production: yes;
+    # core_api_test: no) - an UPDATE ... WHERE EXISTS is a no-op rather
+    # than a failure when it does not.
+    op.execute(
+        """
+        UPDATE tenant_consumers
+        SET default_address = 'claude-ai'
+        WHERE tenant_id = 'jpmschweitzer'
+          AND consumer = 'office-claude'
+          AND EXISTS (
+              SELECT 1 FROM scribe_addresses
+              WHERE owner_tenant = 'jpmschweitzer' AND name = 'claude-ai'
+          )
+        """
+    )
+
+
+def downgrade() -> None:
+    """Unbind and drop the column."""
+    op.drop_constraint(
+        "fk_tenant_consumers_default_address", "tenant_consumers", type_="foreignkey"
+    )
+    op.drop_column("tenant_consumers", "default_address")

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "core-api"
-version = "1.12.0"
+version = "1.13.0"
 description = "Core Code API - Infrastructure management and tools API"
 readme = "README.md"
 requires-python = ">=3.12"

src/domains/tenants/controller.py

@@ -51,7 +51,7 @@ class TenantsController(BaseController):
             session: AsyncSession = Depends(get_async_session),
         ):
             try:
-                tenant, consumers = await service.get_me(session, caller)
+                tenant, consumers, default_address = await service.get_me(session, caller)
             except TenantError as error:
                 raise HTTPException(
                     status_code=error.status_code, detail={"code": error.code}
@@ -62,6 +62,7 @@ class TenantsController(BaseController):
                 kind=tenant.kind,
                 status=tenant.status,
                 consumers=consumers,
+                default_address=default_address,
             )
 
         # =====================================================================

src/domains/tenants/models.py

@@ -7,10 +7,25 @@ and `TenantsService.require_tenant` is the one place a caller's tenant is
 checked known, active, and — for an Office caller — granted to the calling
 consumer. SQLAlchemy 2.0 Mapped/mapped_column style, timestamptz, following
 src/domains/book/models.py.
+
+`TenantConsumer.default_address` (migration 008, core-api T-11) is each
+grant's fallback address for a caller that names none and holds no session
+binding — claude.ai's connector keeps no MCP session between tool calls, so
+the Office needs this to answer without one. The composite FK keeps it
+honest: a default always names a real address in the same tenant.
 """
 from datetime import datetime
+from typing import Optional
 
-from sqlalchemy import CheckConstraint, DateTime, ForeignKey, String, Text, func
+from sqlalchemy import (
+    CheckConstraint,
+    DateTime,
+    ForeignKey,
+    ForeignKeyConstraint,
+    String,
+    Text,
+    func,
+)
 from sqlalchemy.orm import Mapped, mapped_column
 
 from src.shared.database import Base
@@ -55,14 +70,26 @@ class Tenant(Base):
 
 
 class TenantConsumer(Base):
-    """A grant: consumer `consumer` may act in tenant `tenant_id`."""
+    """A grant: consumer `consumer` may act in tenant `tenant_id`, with an
+    optional default address (migration 008, core-api T-11) — the composite
+    FK below means a non-null default always names a real
+    `scribe_addresses` row in this same tenant."""
 
     __tablename__ = "tenant_consumers"
+    __table_args__ = (
+        ForeignKeyConstraint(
+            ["tenant_id", "default_address"],
+            ["scribe_addresses.owner_tenant", "scribe_addresses.name"],
+            name="fk_tenant_consumers_default_address",
+        ),
+    )
 
     tenant_id: Mapped[str] = mapped_column(
         String(63), ForeignKey("tenants.id"), primary_key=True
     )
     consumer: Mapped[str] = mapped_column(String(63), primary_key=True)
+    # FK to scribe_addresses (owner_tenant, name) added by migration 008.
+    default_address: Mapped[Optional[str]] = mapped_column(String(63), nullable=True)
     created_at: Mapped[datetime] = mapped_column(
         DateTime(timezone=True), server_default=func.now(), nullable=False
     )

src/domains/tenants/schemas.py

@@ -5,7 +5,7 @@ Pydantic request/response payloads for the tenant registry (core-api T-8 /
 workspace D-73). No write routes this round — provisioning is later
 (workspace T-195).
 """
-from typing import List
+from typing import List, Optional
 
 from src.shared.base import BaseSchema
 
@@ -21,9 +21,14 @@ class TenantSummary(BaseSchema):
 
 class TenantMeResponse(TenantSummary):
     """`GET /tenants/me` — the caller's own tenant plus the consumers
-    granted in it, the cheap "am I allowed here" probe (D-73)."""
+    granted in it, the cheap "am I allowed here" probe (D-73).
+
+    `default_address` (core-api T-11) is the caller's own consumer's
+    default address, or null — null for a user-kind caller (no consumer to
+    look a default up for) and for an office caller whose grant has none."""
 
     consumers: List[str]
+    default_address: Optional[str] = None
 
 
 class TenantListResponse(BaseSchema):

src/domains/tenants/service.py

@@ -81,9 +81,16 @@ class TenantsService:
 
         return tenant
 
-    async def get_me(self, session: AsyncSession, caller: Caller) -> Tuple[Tenant, List[str]]:
+    async def get_me(
+        self, session: AsyncSession, caller: Caller
+    ) -> Tuple[Tenant, List[str], Optional[str]]:
         """`GET /tenants/me` — through the same helper, so "am I allowed
-        here" shares its answer with every other tenant-scoped call."""
+        here" shares its answer with every other tenant-scoped call.
+
+        The third element is the caller's own consumer's default address
+        (core-api T-11), or None — looked up only for an office caller
+        (`caller.consumer is not None`); a user-kind caller carries no
+        consumer, so there is no grant row to hold a default for it."""
         tenant_id = await self.require_tenant(session, caller)
 
         tenant = await session.get(Tenant, tenant_id)
@@ -93,7 +100,16 @@ class TenantsService:
             .order_by(TenantConsumer.consumer)
         )
         consumers = list((await session.execute(consumers_stmt)).scalars().all())
-        return tenant, consumers
+
+        default_address: Optional[str] = None
+        if caller.consumer is not None:
+            default_address = await session.scalar(
+                select(TenantConsumer.default_address).where(
+                    TenantConsumer.tenant_id == tenant_id,
+                    TenantConsumer.consumer == caller.consumer,
+                )
+            )
+        return tenant, consumers, default_address
 
     async def list_tenants(self, session: AsyncSession, caller: Caller) -> List[Tenant]:
         """

tests/conftest.py

@@ -225,13 +225,36 @@ async def scribe_session(scribe_schema: str):
 @pytest.fixture
 async def clean_scribe_tables(scribe_session):
     """Scribe service methods commit internally (same reason as Book's
-    clean_book_tables). TRUNCATE all three tables together so Postgres
-    resolves the FK order (mailbox_entries -> messages, messages'
-    self-referencing reply_to) across the one statement."""
+    clean_book_tables). TRUNCATE all tables together so Postgres resolves
+    the FK order (mailbox_entries -> messages, messages' self-referencing
+    reply_to) across the one statement.
+
+    `tenant_consumers` joined the list for migration 008 (core-api T-11):
+    its new composite FK `(tenant_id, default_address)` ->
+    `scribe_addresses(owner_tenant, name)` means Postgres now refuses to
+    truncate `scribe_addresses` alone — "cannot truncate a table
+    referenced in a foreign key constraint" — a restriction on the
+    constraint's existence, not on whether any row's `default_address` is
+    actually non-null (it never is here; migration 008's data step is a
+    no-op in `core_api_test`). `TRUNCATE ... CASCADE` was rejected: it
+    would silently drop every grant rather than only addresses, so the
+    four grants this file's tests depend on — both seeded tenants x
+    office-claude/office-gemini, the same pairing `_grant_test_office_gemini`
+    establishes once per session — are reinserted immediately after."""
     from sqlalchemy import text
 
     await scribe_session.execute(
-        text("TRUNCATE scribe_mailbox_entries, scribe_messages, scribe_addresses")
+        text(
+            "TRUNCATE scribe_mailbox_entries, scribe_messages, scribe_addresses, "
+            "tenant_consumers"
+        )
+    )
+    await scribe_session.execute(
+        text(
+            "INSERT INTO tenant_consumers (tenant_id, consumer) VALUES "
+            "('jpmschweitzer', 'office-claude'), ('llm_tester', 'office-claude'), "
+            "('jpmschweitzer', 'office-gemini'), ('llm_tester', 'office-gemini')"
+        )
     )
     await scribe_session.commit()
     yield scribe_session
@@ -287,3 +310,62 @@ async def suspended_tenant(test_database_url: str):
         await session.execute(text("DELETE FROM tenants WHERE id = :id"), {"id": tenant_id})
         await session.commit()
     await engine.dispose()
+
+
+@pytest.fixture
+async def default_address_grant(tenant_registry: str, test_database_url: str):
+    """
+    Give `jpmschweitzer`/`office-claude` a default address (core-api T-11):
+    registers a throwaway `scribe_addresses` row first — migration 008's
+    composite FK means the grant's default must name a real address in the
+    same tenant — then points the grant at it. Reversed on teardown (default
+    back to null, the address row deleted) so the rest of the suite sees the
+    null default that `core_api_test`'s own copy of migration 008 actually
+    leaves this grant with (see test_tenants_migration.py's
+    TestMigration008DataStep: claude-ai is never seeded here).
+    """
+    from sqlalchemy import text
+    from sqlalchemy.ext.asyncio import async_sessionmaker, create_async_engine
+    from sqlalchemy.pool import NullPool
+
+    tenant_id = "jpmschweitzer"
+    consumer = "office-claude"
+    address = "test-default-address"
+
+    asyncpg_url = test_database_url.replace("postgresql://", "postgresql+asyncpg://", 1)
+    engine = create_async_engine(asyncpg_url, poolclass=NullPool)
+    session_factory = async_sessionmaker(bind=engine, expire_on_commit=False)
+
+    async with session_factory() as session:
+        await session.execute(
+            text(
+                "INSERT INTO scribe_addresses (owner_tenant, name, created_by) "
+                "VALUES (:tenant, :address, 'test-harness')"
+            ),
+            {"tenant": tenant_id, "address": address},
+        )
+        await session.execute(
+            text(
+                "UPDATE tenant_consumers SET default_address = :address "
+                "WHERE tenant_id = :tenant AND consumer = :consumer"
+            ),
+            {"tenant": tenant_id, "address": address, "consumer": consumer},
+        )
+        await session.commit()
+
+    yield address
+
+    async with session_factory() as session:
+        await session.execute(
+            text(
+                "UPDATE tenant_consumers SET default_address = NULL "
+                "WHERE tenant_id = :tenant AND consumer = :consumer"
+            ),
+            {"tenant": tenant_id, "consumer": consumer},
+        )
+        await session.execute(
+            text("DELETE FROM scribe_addresses WHERE owner_tenant = :tenant AND name = :address"),
+            {"tenant": tenant_id, "address": address},
+        )
+        await session.commit()
+    await engine.dispose()

tests/test_tenants.py

@@ -164,6 +164,35 @@ class TestMe:
         assert response.json()["id"] == TENANT
 
 
+class TestMeDefaultAddress:
+    """`GET /tenants/me`'s `default_address` (core-api T-11): the Office's
+    fallback for a caller that names no address and holds no session
+    binding — null unless the grant itself has one."""
+
+    def test_office_caller_with_a_default_sees_it(self, client, default_address_grant):
+        response = client.get("/tenants/me", headers=office_headers())
+        assert response.status_code == 200
+        assert response.json()["default_address"] == default_address_grant
+
+    def test_office_caller_without_a_default_sees_null(self, client):
+        response = client.get("/tenants/me", headers=office_headers())
+        assert response.status_code == 200
+        assert response.json()["default_address"] is None
+
+    def test_user_caller_sees_null(self, client):
+        """A user-kind caller carries no consumer, so there is no grant row
+        to look a default up for — null regardless of any office grant's
+        own default."""
+        with patch("src.domains.auth.callers.get_current_user") as mock_get_current_user:
+            mock_get_current_user.return_value = {
+                "preferred_username": "jeroen",
+                "tatlock_user": TENANT,
+            }
+            response = client.get("/tenants/me", headers={"Authorization": "Bearer some-jwt"})
+        assert response.status_code == 200
+        assert response.json()["default_address"] is None
+
+
 class TestList:
     """`GET /tenants` — the hard boundary: another tenant's existence is
     never revealed to a tenant-bearing caller."""

tests/test_tenants_migration.py

@@ -1,5 +1,6 @@
 """
-Tests for the tenant registry migration 007 (core-api T-8, workspace D-73).
+Tests for the tenant registry migrations 007 (core-api T-8, workspace D-73)
+and 008 (core-api T-11, the default-address column).
 
 Runs against `core_api_test` only (see conftest.py — skip when
 TEST_DATABASE_URL is unset, hard failure if it resolves to `core_api`).
@@ -186,3 +187,196 @@ class TestMigration007ForeignKeys:
                     await conn.commit()
         finally:
             await engine.dispose()
+
+
+class TestMigration008RoundTrip:
+    """Migration 008 (core-api T-11) must upgrade and downgrade cleanly
+    (dossier verification #2) — same pattern as TestMigration007RoundTrip,
+    one revision up."""
+
+    @pytest.mark.asyncio
+    async def test_upgrade_adds_default_address_column(self, test_database_url):
+        result = run_alembic(test_database_url, "upgrade", "head")
+        assert result.returncode == 0, result.stderr
+        found = await _scalar(
+            test_database_url,
+            "SELECT column_name FROM information_schema.columns "
+            "WHERE table_name = 'tenant_consumers' AND column_name = 'default_address'",
+        )
+        assert found == "default_address"
+
+    @pytest.mark.asyncio
+    async def test_downgrade_then_upgrade_round_trips_cleanly(self, test_database_url):
+        baseline = run_alembic(test_database_url, "upgrade", "head")
+        assert baseline.returncode == 0, baseline.stderr
+
+        down = run_alembic(test_database_url, "downgrade", "007")
+        assert down.returncode == 0, down.stderr
+        found = await _scalar(
+            test_database_url,
+            "SELECT column_name FROM information_schema.columns "
+            "WHERE table_name = 'tenant_consumers' AND column_name = 'default_address'",
+        )
+        assert found is None
+        # tenant_consumers itself, and the rest of the registry, must
+        # survive a downgrade of 008 — proves 008 only touches its own
+        # column and FK.
+        assert await _table_exists(test_database_url, "tenant_consumers")
+        assert await _table_exists(test_database_url, "tenants")
+
+        # Leave the schema at head for the rest of the suite.
+        up = run_alembic(test_database_url, "upgrade", "008")
+        assert up.returncode == 0, up.stderr
+        found = await _scalar(
+            test_database_url,
+            "SELECT column_name FROM information_schema.columns "
+            "WHERE table_name = 'tenant_consumers' AND column_name = 'default_address'",
+        )
+        assert found == "default_address"
+
+
+class TestMigration008ForeignKey:
+    """The composite FK `(tenant_id, default_address)` ->
+    `scribe_addresses(owner_tenant, name)` (dossier verification #2/#3): a
+    default always names a real address in the same tenant."""
+
+    @pytest.mark.asyncio
+    async def test_fk_exists(self, test_database_url):
+        run_alembic(test_database_url, "upgrade", "head")
+        found = await _scalar(
+            test_database_url,
+            "SELECT conname FROM pg_constraint "
+            "WHERE conname = 'fk_tenant_consumers_default_address' AND contype = 'f'",
+        )
+        assert found == "fk_tenant_consumers_default_address"
+
+    @pytest.mark.asyncio
+    async def test_fk_refuses_a_default_naming_an_address_that_does_not_exist(
+        self, test_database_url
+    ):
+        """dossier verification #3: "A test inserts a default naming an
+        address that does not exist and sees the FK refuse it.\""""
+        run_alembic(test_database_url, "upgrade", "head")
+        asyncpg_url = test_database_url.replace("postgresql://", "postgresql+asyncpg://", 1)
+        engine = create_async_engine(asyncpg_url, poolclass=NullPool)
+        try:
+            async with engine.connect() as conn:
+                with pytest.raises(IntegrityError):
+                    await conn.execute(
+                        text(
+                            "UPDATE tenant_consumers SET default_address = 'no-such-address' "
+                            "WHERE tenant_id = 'llm_tester' AND consumer = 'office-claude'"
+                        )
+                    )
+                    await conn.commit()
+        finally:
+            await engine.dispose()
+
+    @pytest.mark.asyncio
+    async def test_fk_allows_a_null_default_regardless_of_tenant(self, test_database_url):
+        """A NULL default_address never triggers the composite check
+        (Postgres's default MATCH SIMPLE) — explicit, since this is the
+        state every grant but jpmschweitzer/office-claude is left in."""
+        run_alembic(test_database_url, "upgrade", "head")
+        asyncpg_url = test_database_url.replace("postgresql://", "postgresql+asyncpg://", 1)
+        engine = create_async_engine(asyncpg_url, poolclass=NullPool)
+        try:
+            async with engine.begin() as conn:
+                await conn.execute(
+                    text(
+                        "UPDATE tenant_consumers SET default_address = NULL "
+                        "WHERE tenant_id = 'llm_tester' AND consumer = 'office-claude'"
+                    )
+                )
+        finally:
+            await engine.dispose()
+        found = await _scalar(
+            test_database_url,
+            "SELECT default_address FROM tenant_consumers "
+            "WHERE tenant_id = 'llm_tester' AND consumer = 'office-claude'",
+        )
+        assert found is None
+
+
+class TestMigration008DataStep:
+    """jpmschweitzer/office-claude defaults to `claude-ai` only if that
+    address exists at upgrade time (dossier: "an UPDATE ... WHERE EXISTS
+    does this"); `llm_tester`/office-claude is never touched."""
+
+    @pytest.mark.asyncio
+    async def test_is_a_noop_when_claude_ai_is_absent(self, test_database_url):
+        """core_api_test seeds no scribe_addresses rows, so the data step
+        must run without error and leave the default null — this is the
+        state production's own test database is in today."""
+        run_alembic(test_database_url, "upgrade", "head")
+        down = run_alembic(test_database_url, "downgrade", "007")
+        assert down.returncode == 0, down.stderr
+
+        up = run_alembic(test_database_url, "upgrade", "008")
+        assert up.returncode == 0, up.stderr
+        found = await _scalar(
+            test_database_url,
+            "SELECT default_address FROM tenant_consumers "
+            "WHERE tenant_id = 'jpmschweitzer' AND consumer = 'office-claude'",
+        )
+        assert found is None
+
+    @pytest.mark.asyncio
+    async def test_llm_tester_office_claude_stays_null(self, test_database_url):
+        run_alembic(test_database_url, "upgrade", "head")
+        found = await _scalar(
+            test_database_url,
+            "SELECT default_address FROM tenant_consumers "
+            "WHERE tenant_id = 'llm_tester' AND consumer = 'office-claude'",
+        )
+        assert found is None
+
+    @pytest.mark.asyncio
+    async def test_sets_claude_ai_when_the_address_exists_at_upgrade_time(
+        self, test_database_url
+    ):
+        """Register claude-ai in jpmschweitzer *before* 008 runs (the
+        production shape), downgrade to 007 so the data step runs again on
+        the way back up, then prove the UPDATE actually sets the default
+        rather than leaving it null regardless — the mutation check's
+        positive case. Cleans up its own address and resets the default so
+        the rest of the suite sees the null state it otherwise expects."""
+        run_alembic(test_database_url, "upgrade", "head")
+        down = run_alembic(test_database_url, "downgrade", "007")
+        assert down.returncode == 0, down.stderr
+
+        asyncpg_url = test_database_url.replace("postgresql://", "postgresql+asyncpg://", 1)
+        engine = create_async_engine(asyncpg_url, poolclass=NullPool)
+        try:
+            async with engine.begin() as conn:
+                await conn.execute(
+                    text(
+                        "INSERT INTO scribe_addresses (owner_tenant, name, created_by) "
+                        "VALUES ('jpmschweitzer', 'claude-ai', 'test-harness')"
+                    )
+                )
+
+            up = run_alembic(test_database_url, "upgrade", "008")
+            assert up.returncode == 0, up.stderr
+
+            found = await _scalar(
+                test_database_url,
+                "SELECT default_address FROM tenant_consumers "
+                "WHERE tenant_id = 'jpmschweitzer' AND consumer = 'office-claude'",
+            )
+            assert found == "claude-ai"
+        finally:
+            async with engine.begin() as conn:
+                await conn.execute(
+                    text(
+                        "UPDATE tenant_consumers SET default_address = NULL "
+                        "WHERE tenant_id = 'jpmschweitzer' AND consumer = 'office-claude'"
+                    )
+                )
+                await conn.execute(
+                    text(
+                        "DELETE FROM scribe_addresses "
+                        "WHERE owner_tenant = 'jpmschweitzer' AND name = 'claude-ai'"
+                    )
+                )
+            await engine.dispose()