commit 4f4d05db42ccf476afac833b85920bec1f6191f6
Author: Albrecht Degering <albrecht@degering.name>
Date:   Fri Jul 10 11:01:37 2026 +0200

    Initialize identity module

diff --git a/.gitea/ISSUE_TEMPLATE/bug_report.md b/.gitea/ISSUE_TEMPLATE/bug_report.md
new file mode 100644
index 0000000..3455aa9
--- /dev/null
+++ b/.gitea/ISSUE_TEMPLATE/bug_report.md
@@ -0,0 +1,35 @@
+---
+name: "Bug"
+about: "Report a reproducible defect, regression, or incorrect behavior"
+title: "[Bug] "
+labels:
+  - type/bug
+  - status/triage
+  - module/identity
+---
+
+## Scope
+
+- Repository:
+- Area/module:
+- Affected version or commit:
+
+## Behavior
+
+Expected:
+
+Actual:
+
+## Reproduction
+
+1.
+2.
+3.
+
+## Evidence
+
+Logs, screenshots, traces, or failing test output:
+
+## Verification Target
+
+Command or workflow that should pass when fixed:
diff --git a/.gitea/ISSUE_TEMPLATE/config.yaml b/.gitea/ISSUE_TEMPLATE/config.yaml
new file mode 100644
index 0000000..3ba13e0
--- /dev/null
+++ b/.gitea/ISSUE_TEMPLATE/config.yaml
@@ -0,0 +1 @@
+blank_issues_enabled: false
diff --git a/.gitea/ISSUE_TEMPLATE/docs_workflow.md b/.gitea/ISSUE_TEMPLATE/docs_workflow.md
new file mode 100644
index 0000000..3fbb4e1
--- /dev/null
+++ b/.gitea/ISSUE_TEMPLATE/docs_workflow.md
@@ -0,0 +1,27 @@
+---
+name: "Docs / workflow"
+about: "Request documentation, process, or developer workflow changes"
+title: "[Docs] "
+labels:
+  - type/docs
+  - status/triage
+  - module/identity
+  - area/docs
+---
+
+## Scope
+
+- Repository:
+- Document or workflow:
+
+## Current State
+
+What is missing, unclear, duplicated, or stale?
+
+## Desired State
+
+What should the docs or workflow make clear?
+
+## Verification Target
+
+How should this be checked?
diff --git a/.gitea/ISSUE_TEMPLATE/feature_request.md b/.gitea/ISSUE_TEMPLATE/feature_request.md
new file mode 100644
index 0000000..8e065ff
--- /dev/null
+++ b/.gitea/ISSUE_TEMPLATE/feature_request.md
@@ -0,0 +1,32 @@
+---
+name: "Feature"
+about: "Propose new user-visible behavior or platform capability"
+title: "[Feature] "
+labels:
+  - type/feature
+  - status/triage
+  - module/identity
+---
+
+## Problem
+
+What user, operator, or developer problem should this solve?
+
+## Proposed Capability
+
+What should exist when this is done?
+
+## Ownership
+
+- Owning repository:
+- Related module repositories:
+- Extension point or integration boundary:
+
+## Acceptance Criteria
+
+- [ ]
+- [ ]
+
+## Verification Target
+
+Command, scenario, or UI flow that should prove completion:
diff --git a/.gitea/ISSUE_TEMPLATE/task.md b/.gitea/ISSUE_TEMPLATE/task.md
new file mode 100644
index 0000000..397c876
--- /dev/null
+++ b/.gitea/ISSUE_TEMPLATE/task.md
@@ -0,0 +1,28 @@
+---
+name: "Task"
+about: "Track implementation, maintenance, or migration work"
+title: "[Task] "
+labels:
+  - type/task
+  - status/triage
+  - module/identity
+---
+
+## Objective
+
+What needs to be completed?
+
+## Scope
+
+- Owning repository:
+- In-scope:
+- Out-of-scope:
+
+## Checklist
+
+- [ ]
+- [ ]
+
+## Verification Target
+
+Command or manual check:
diff --git a/.gitea/ISSUE_TEMPLATE/tech_debt.md b/.gitea/ISSUE_TEMPLATE/tech_debt.md
new file mode 100644
index 0000000..d3ab26c
--- /dev/null
+++ b/.gitea/ISSUE_TEMPLATE/tech_debt.md
@@ -0,0 +1,25 @@
+---
+name: "Tech debt"
+about: "Track cleanup, refactoring, risk reduction, or deferred engineering work"
+title: "[Debt] "
+labels:
+  - type/debt
+  - status/triage
+  - module/identity
+---
+
+## Current Cost
+
+What does this make harder, riskier, slower, or more fragile?
+
+## Desired Shape
+
+What should the code, tests, or architecture look like afterwards?
+
+## Constraints
+
+What behavior, compatibility, or module boundary must be preserved?
+
+## Verification Target
+
+Focused checks that should pass:
diff --git a/.gitea/PULL_REQUEST_TEMPLATE.md b/.gitea/PULL_REQUEST_TEMPLATE.md
new file mode 100644
index 0000000..1984736
--- /dev/null
+++ b/.gitea/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,15 @@
+## Issue
+
+Closes #
+
+## Summary
+
+-
+
+## Verification
+
+-
+
+## Notes
+
+Follow-up issues:
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..7082bff
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,8 @@
+__pycache__/
+*.py[cod]
+*.egg-info/
+.pytest_cache/
+.mypy_cache/
+.ruff_cache/
+build/
+dist/
diff --git a/AGENTS.md b/AGENTS.md
new file mode 100644
index 0000000..0353cd8
--- /dev/null
+++ b/AGENTS.md
@@ -0,0 +1,27 @@
+# GovOPlaN Identity Codex Guide
+
+## Scope
+
+This repository owns the canonical GovOPlaN identity directory: internal
+identity records and links between identities and platform accounts.
+
+The module does not own authentication sessions, passwords, API keys, roles,
+permissions, or external IDM connector behavior.
+
+## Boundaries
+
+- Depend on kernel contracts from `govoplan-core`.
+- Do not import access, IDM, organizations, postbox, workflow, or portal
+  internals.
+- Expose integration through manifests, capabilities, API routes, events, and
+  typed DTOs.
+- Keep external-provider synchronization in `govoplan-idm`; this module stores
+  accepted normalized identity facts.
+
+## Local Workflow
+
+Use Gitea issues as the canonical backlog and state log. The shared workflow is
+installed under `.gitea/`, with labels in `docs/gitea-labels.json`.
+
+Focused verification is still driven from `/mnt/DATA/git/govoplan-core` for
+cross-repository behavior.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..17c3908
--- /dev/null
+++ b/README.md
@@ -0,0 +1,39 @@
+# GovOPlaN Identity
+
+`govoplan-identity` is the canonical identity directory module for GovOPlaN.
+
+It owns identities and links between identities and platform accounts. This is
+separate from IDM connectors and from access control.
+
+## Boundary
+
+Identity owns:
+
+- identity records for people, services, and other internal subjects
+- account links for identities that can use multiple accounts
+- primary account selection for display and explainability
+- accepted normalized identity facts after import or manual administration
+
+Identity does not own:
+
+- password authentication, sessions, API keys, or CSRF
+- roles, rights, permission evaluation, or access decisions
+- organization units, functions, or function assignments
+- external directory connector internals
+
+## Module Contract
+
+The module registers the `identity.directory` capability from
+`govoplan_core.core.identity`.
+
+Feature modules should consume the capability instead of importing identity ORM
+models.
+
+## Development Install
+
+From the core checkout:
+
+```bash
+cd /mnt/DATA/git/govoplan-core
+./.venv/bin/python -m pip install -e ../govoplan-identity
+```
diff --git a/docs/IDENTITY_MODEL.md b/docs/IDENTITY_MODEL.md
new file mode 100644
index 0000000..2bf03ab
--- /dev/null
+++ b/docs/IDENTITY_MODEL.md
@@ -0,0 +1,27 @@
+# Identity Model
+
+The identity model answers who the platform subject is, independent of how they
+authenticate and independent of what they may do.
+
+## Layers
+
+- Identity: a person, service, or other subject known to GovOPlaN.
+- Account link: a reference from that identity to one platform account.
+- Primary account: the account used as the default display/explainability
+  anchor when multiple accounts exist.
+
+## Boundary With Access
+
+Access owns authorization. Identity only tells access which identity is behind
+an account. Access can then evaluate roles, rights, delegation, and policy.
+
+## Boundary With Organizations
+
+Organization functions and function assignments live in
+`govoplan-organizations`. Those assignments may reference identity and account
+IDs, but identity does not own organizational structure.
+
+## Boundary With IDM
+
+`govoplan-idm` imports, previews, reconciles, and applies external identity
+facts. Once accepted, normalized identity records belong here.
diff --git a/docs/gitea-labels.json b/docs/gitea-labels.json
new file mode 100644
index 0000000..74dceb9
--- /dev/null
+++ b/docs/gitea-labels.json
@@ -0,0 +1,416 @@
+[
+  {
+    "name": "type/bug",
+    "color": "d73a4a",
+    "description": "A reproducible defect, regression, or incorrect behavior.",
+    "exclusive": true
+  },
+  {
+    "name": "type/feature",
+    "color": "0e8a16",
+    "description": "New user-visible behavior or platform capability.",
+    "exclusive": true
+  },
+  {
+    "name": "type/task",
+    "color": "1d76db",
+    "description": "Implementation, maintenance, migration, or operational work.",
+    "exclusive": true
+  },
+  {
+    "name": "type/debt",
+    "color": "fbca04",
+    "description": "Cleanup, refactoring, risk reduction, or deferred engineering work.",
+    "exclusive": true
+  },
+  {
+    "name": "type/docs",
+    "color": "5319e7",
+    "description": "Documentation, process, or developer workflow work.",
+    "exclusive": true
+  },
+  {
+    "name": "priority/p0",
+    "color": "b60205",
+    "description": "Immediate stop-the-line priority.",
+    "exclusive": true
+  },
+  {
+    "name": "priority/p1",
+    "color": "d93f0b",
+    "description": "High priority for the next focused work window.",
+    "exclusive": true
+  },
+  {
+    "name": "priority/p2",
+    "color": "fbca04",
+    "description": "Normal planned priority.",
+    "exclusive": true
+  },
+  {
+    "name": "priority/p3",
+    "color": "c2e0c6",
+    "description": "Low priority or opportunistic cleanup.",
+    "exclusive": true
+  },
+  {
+    "name": "status/triage",
+    "color": "d4c5f9",
+    "description": "Needs review, ownership, priority, or acceptance criteria.",
+    "exclusive": true
+  },
+  {
+    "name": "status/ready",
+    "color": "0e8a16",
+    "description": "Ready for implementation.",
+    "exclusive": true
+  },
+  {
+    "name": "status/in-progress",
+    "color": "0052cc",
+    "description": "Currently being worked.",
+    "exclusive": true
+  },
+  {
+    "name": "status/blocked",
+    "color": "b60205",
+    "description": "Cannot progress without a decision, dependency, credential, or external change.",
+    "exclusive": true
+  },
+  {
+    "name": "status/needs-info",
+    "color": "f9d0c4",
+    "description": "Needs clarifying input before implementation can proceed safely.",
+    "exclusive": true
+  },
+  {
+    "name": "module/access",
+    "color": "0e8a16",
+    "description": "GovOPlaN access, identity, authentication, RBAC, and administration behavior.",
+    "exclusive": false
+  },
+  {
+    "name": "module/addresses",
+    "color": "5319e7",
+    "description": "GovOPlaN Addresses module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/admin",
+    "color": "006b75",
+    "description": "GovOPlaN Admin module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/appointments",
+    "color": "d876e3",
+    "description": "GovOPlaN Appointments module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/audit",
+    "color": "0e8a16",
+    "description": "GovOPlaN Audit module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/calendar",
+    "color": "bfd4f2",
+    "description": "GovOPlaN Calendar module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/campaign",
+    "color": "d876e3",
+    "description": "GovOPlaN campaign module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/cases",
+    "color": "1d76db",
+    "description": "GovOPlaN Cases module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/connectors",
+    "color": "c2e0c6",
+    "description": "GovOPlaN Connectors module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/core",
+    "color": "0052cc",
+    "description": "GovOPlaN core runner, shared primitives, shell, or extension points.",
+    "exclusive": false
+  },
+  {
+    "name": "module/dms",
+    "color": "c5def5",
+    "description": "GovOPlaN Dms module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/erp",
+    "color": "fef2c0",
+    "description": "GovOPlaN Erp module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/files",
+    "color": "006b75",
+    "description": "GovOPlaN files module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/fit-connect",
+    "color": "fbca04",
+    "description": "GovOPlaN Fit Connect module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/forms",
+    "color": "f9d0c4",
+    "description": "GovOPlaN Forms module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/identity-trust",
+    "color": "d4c5f9",
+    "description": "GovOPlaN Identity Trust module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/identity",
+    "color": "bfd4f2",
+    "description": "GovOPlaN Identity module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/idm",
+    "color": "0052cc",
+    "description": "GovOPlaN Idm module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/ledger",
+    "color": "5319e7",
+    "description": "GovOPlaN Ledger module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/mail",
+    "color": "5319e7",
+    "description": "GovOPlaN mail module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/notifications",
+    "color": "d876e3",
+    "description": "GovOPlaN Notifications module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/ops",
+    "color": "0e8a16",
+    "description": "GovOPlaN Ops module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/organizations",
+    "color": "bfdadc",
+    "description": "GovOPlaN Organizations module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/payments",
+    "color": "bfd4f2",
+    "description": "GovOPlaN Payments module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/policy",
+    "color": "d93f0b",
+    "description": "GovOPlaN Policy module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/portal",
+    "color": "1d76db",
+    "description": "GovOPlaN Portal module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/postbox",
+    "color": "d93f0b",
+    "description": "GovOPlaN Postbox module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/reporting",
+    "color": "c2e0c6",
+    "description": "GovOPlaN Reporting module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/search",
+    "color": "bfdadc",
+    "description": "GovOPlaN Search module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/scheduling",
+    "color": "d93f0b",
+    "description": "GovOPlaN Scheduling module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/tasks",
+    "color": "c5def5",
+    "description": "GovOPlaN Tasks module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/templates",
+    "color": "fef2c0",
+    "description": "GovOPlaN Templates module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/tenancy",
+    "color": "e4e669",
+    "description": "GovOPlaN Tenancy module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/web",
+    "color": "bfd4f2",
+    "description": "GovOPlaN public website, product page, or publication content.",
+    "exclusive": false
+  },
+  {
+    "name": "module/workflow",
+    "color": "f9d0c4",
+    "description": "GovOPlaN Workflow module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/xoev",
+    "color": "d4c5f9",
+    "description": "GovOPlaN Xoev module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/xrechnung",
+    "color": "0052cc",
+    "description": "GovOPlaN Xrechnung module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "module/xta-osci",
+    "color": "5319e7",
+    "description": "GovOPlaN Xta Osci module behavior or integration.",
+    "exclusive": false
+  },
+  {
+    "name": "area/auth",
+    "color": "bfd4f2",
+    "description": "Authentication, sessions, access bootstrap, or login behavior.",
+    "exclusive": false
+  },
+  {
+    "name": "area/tenancy",
+    "color": "bfdadc",
+    "description": "Tenant boundaries, provisioning, or tenant-scoped data behavior.",
+    "exclusive": false
+  },
+  {
+    "name": "area/rbac",
+    "color": "c5def5",
+    "description": "Permissions, roles, delegation, or authorization policy.",
+    "exclusive": false
+  },
+  {
+    "name": "area/governance",
+    "color": "fef2c0",
+    "description": "Governance policy, audit, privacy, retention, or compliance behavior.",
+    "exclusive": false
+  },
+  {
+    "name": "area/module-system",
+    "color": "bfe5bf",
+    "description": "Module discovery, manifests, capabilities, routing, or optional integrations.",
+    "exclusive": false
+  },
+  {
+    "name": "area/migrations",
+    "color": "e4e669",
+    "description": "Alembic migrations, schema bootstrap, or persistence evolution.",
+    "exclusive": false
+  },
+  {
+    "name": "area/webui",
+    "color": "1d76db",
+    "description": "Shared WebUI shell, frontend components, routing, or frontend tests.",
+    "exclusive": false
+  },
+  {
+    "name": "area/api",
+    "color": "5319e7",
+    "description": "HTTP API contracts, routers, schemas, or API smoke behavior.",
+    "exclusive": false
+  },
+  {
+    "name": "area/db",
+    "color": "0e8a16",
+    "description": "Database sessions, models, transactions, or persistence primitives.",
+    "exclusive": false
+  },
+  {
+    "name": "area/devex",
+    "color": "bfd4f2",
+    "description": "Local developer workflow, scripts, tests, tooling, or release helpers.",
+    "exclusive": false
+  },
+  {
+    "name": "area/release",
+    "color": "c2e0c6",
+    "description": "Versioning, release locks, tags, packaging, or dependency pins.",
+    "exclusive": false
+  },
+  {
+    "name": "area/docs",
+    "color": "5319e7",
+    "description": "Durable documentation and project guidance.",
+    "exclusive": false
+  },
+  {
+    "name": "area/marketing",
+    "color": "f9d0c4",
+    "description": "Public website, product messaging, publication copy, or legal page content.",
+    "exclusive": false
+  },
+  {
+    "name": "source/todo-scan",
+    "color": "cccccc",
+    "description": "Imported from inline TODO/FIXME/HACK markers by the Gitea TODO importer.",
+    "exclusive": false
+  },
+  {
+    "name": "source/backlog-import",
+    "color": "bfdadc",
+    "description": "Imported from markdown backlog, roadmap, plan, or TODO files.",
+    "exclusive": false
+  },
+  {
+    "name": "codex/ready",
+    "color": "0e8a16",
+    "description": "Suitable for Codex to pick up with the existing issue context.",
+    "exclusive": false
+  },
+  {
+    "name": "codex/needs-human",
+    "color": "f9d0c4",
+    "description": "Needs an explicit human decision before Codex should implement.",
+    "exclusive": false
+  }
+]
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..2393359
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,23 @@
+[build-system]
+requires = ["setuptools>=69", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "govoplan-identity"
+version = "0.1.6"
+description = "GovOPlaN identity directory module."
+readme = "README.md"
+requires-python = ">=3.12"
+authors = [{ name = "GovOPlaN" }]
+dependencies = [
+  "govoplan-core>=0.1.6",
+]
+
+[tool.setuptools.packages.find]
+where = ["src"]
+
+[tool.setuptools.package-data]
+govoplan_identity = ["py.typed"]
+
+[project.entry-points."govoplan.modules"]
+identity = "govoplan_identity.backend.manifest:get_manifest"
diff --git a/src/govoplan_identity/__init__.py b/src/govoplan_identity/__init__.py
new file mode 100644
index 0000000..8e13f17
--- /dev/null
+++ b/src/govoplan_identity/__init__.py
@@ -0,0 +1,3 @@
+"""GovOPlaN identity module."""
+
+__version__ = "0.1.6"
diff --git a/src/govoplan_identity/backend/__init__.py b/src/govoplan_identity/backend/__init__.py
new file mode 100644
index 0000000..b0523ac
--- /dev/null
+++ b/src/govoplan_identity/backend/__init__.py
@@ -0,0 +1 @@
+"""Backend integration for the GovOPlaN identity module."""
diff --git a/src/govoplan_identity/backend/db/__init__.py b/src/govoplan_identity/backend/db/__init__.py
new file mode 100644
index 0000000..418d1c2
--- /dev/null
+++ b/src/govoplan_identity/backend/db/__init__.py
@@ -0,0 +1 @@
+"""Identity database models."""
diff --git a/src/govoplan_identity/backend/db/models.py b/src/govoplan_identity/backend/db/models.py
new file mode 100644
index 0000000..8acfffd
--- /dev/null
+++ b/src/govoplan_identity/backend/db/models.py
@@ -0,0 +1,58 @@
+from __future__ import annotations
+
+import uuid
+from typing import Any
+
+from sqlalchemy import Boolean, ForeignKey, Index, JSON, String, UniqueConstraint, text
+from sqlalchemy.orm import Mapped, mapped_column
+
+from govoplan_core.db.base import Base, TimestampMixin
+
+
+def new_uuid() -> str:
+    return str(uuid.uuid4())
+
+
+class CanonicalIdentity(Base, TimestampMixin):
+    __tablename__ = "identity_identities"
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    display_name: Mapped[str | None] = mapped_column(String(255))
+    external_subject: Mapped[str | None] = mapped_column(String(255), index=True)
+    source: Mapped[str] = mapped_column(String(50), default="local", nullable=False)
+    is_active: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
+    settings: Mapped[dict[str, Any]] = mapped_column(JSON, default=dict, nullable=False)
+
+
+class CanonicalIdentityAccountLink(Base, TimestampMixin):
+    __tablename__ = "identity_account_links"
+    __table_args__ = (
+        UniqueConstraint("identity_id", "account_id", name="uq_identity_module_account_links_identity_account"),
+        Index(
+            "uq_identity_module_account_links_primary_account",
+            "account_id",
+            unique=True,
+            sqlite_where=text("is_primary = 1"),
+            postgresql_where=text("is_primary IS TRUE"),
+        ),
+        Index(
+            "uq_identity_module_account_links_primary_identity",
+            "identity_id",
+            unique=True,
+            sqlite_where=text("is_primary = 1"),
+            postgresql_where=text("is_primary IS TRUE"),
+        ),
+    )
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=new_uuid)
+    identity_id: Mapped[str] = mapped_column(ForeignKey("identity_identities.id", ondelete="CASCADE"), nullable=False, index=True)
+    account_id: Mapped[str] = mapped_column(String(36), nullable=False, index=True)
+    is_primary: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
+    source: Mapped[str] = mapped_column(String(50), default="local", nullable=False)
+
+
+Identity = CanonicalIdentity
+IdentityAccountLink = CanonicalIdentityAccountLink
+
+
+__all__ = ["CanonicalIdentity", "CanonicalIdentityAccountLink", "Identity", "IdentityAccountLink", "new_uuid"]
diff --git a/src/govoplan_identity/backend/directory.py b/src/govoplan_identity/backend/directory.py
new file mode 100644
index 0000000..ddb6508
--- /dev/null
+++ b/src/govoplan_identity/backend/directory.py
@@ -0,0 +1,105 @@
+from __future__ import annotations
+
+from collections.abc import Sequence
+
+from govoplan_core.core.identity import IdentityAccountLinkRef, IdentityDirectory, IdentityRef
+from govoplan_core.db.session import get_database
+from govoplan_identity.backend.db.models import Identity, IdentityAccountLink
+
+
+def _status(active: bool) -> str:
+    return "active" if active else "inactive"
+
+
+def _identity_ref(identity: Identity, links: Sequence[IdentityAccountLink]) -> IdentityRef:
+    primary_account_id = next((link.account_id for link in links if link.is_primary), None)
+    return IdentityRef(
+        id=identity.id,
+        display_name=identity.display_name,
+        external_subject=identity.external_subject,
+        source=identity.source,
+        primary_account_id=primary_account_id,
+        account_ids=tuple(link.account_id for link in links),
+        status=_status(identity.is_active),  # type: ignore[arg-type]
+    )
+
+
+def _link_ref(link: IdentityAccountLink) -> IdentityAccountLinkRef:
+    return IdentityAccountLinkRef(
+        id=link.id,
+        identity_id=link.identity_id,
+        account_id=link.account_id,
+        is_primary=link.is_primary,
+        source=link.source,
+    )
+
+
+class SqlIdentityDirectory(IdentityDirectory):
+    def get_identity(self, identity_id: str) -> IdentityRef | None:
+        with get_database().session() as session:
+            identity = session.get(Identity, identity_id)
+            if identity is None:
+                return None
+            links = (
+                session.query(IdentityAccountLink)
+                .filter(IdentityAccountLink.identity_id == identity.id)
+                .order_by(IdentityAccountLink.is_primary.desc(), IdentityAccountLink.created_at.asc())
+                .all()
+            )
+            return _identity_ref(identity, links)
+
+    def identity_for_account(self, account_id: str) -> IdentityRef | None:
+        with get_database().session() as session:
+            link = (
+                session.query(IdentityAccountLink)
+                .filter(IdentityAccountLink.account_id == account_id)
+                .order_by(IdentityAccountLink.is_primary.desc(), IdentityAccountLink.created_at.asc())
+                .first()
+            )
+            if link is None:
+                return None
+            identity = session.get(Identity, link.identity_id)
+            if identity is None:
+                return None
+            links = (
+                session.query(IdentityAccountLink)
+                .filter(IdentityAccountLink.identity_id == identity.id)
+                .order_by(IdentityAccountLink.is_primary.desc(), IdentityAccountLink.created_at.asc())
+                .all()
+            )
+            return _identity_ref(identity, links)
+
+    def identities_for_accounts(self, account_ids: Sequence[str]) -> tuple[IdentityRef, ...]:
+        ids = sorted({str(account_id) for account_id in account_ids if account_id})
+        if not ids:
+            return ()
+        with get_database().session() as session:
+            identity_ids = [
+                row[0]
+                for row in session.query(IdentityAccountLink.identity_id)
+                .filter(IdentityAccountLink.account_id.in_(ids))
+                .distinct()
+                .all()
+            ]
+            identities = session.query(Identity).filter(Identity.id.in_(identity_ids)).all() if identity_ids else []
+            links = (
+                session.query(IdentityAccountLink)
+                .filter(IdentityAccountLink.identity_id.in_(identity_ids))
+                .order_by(IdentityAccountLink.is_primary.desc(), IdentityAccountLink.created_at.asc())
+                .all()
+                if identity_ids else []
+            )
+            links_by_identity: dict[str, list[IdentityAccountLink]] = {}
+            for link in links:
+                links_by_identity.setdefault(link.identity_id, []).append(link)
+            return tuple(_identity_ref(identity, links_by_identity.get(identity.id, [])) for identity in identities)
+
+    def accounts_for_identity(self, identity_id: str) -> tuple[IdentityAccountLinkRef, ...]:
+        with get_database().session() as session:
+            links = (
+                session.query(IdentityAccountLink)
+                .filter(IdentityAccountLink.identity_id == identity_id)
+                .order_by(IdentityAccountLink.is_primary.desc(), IdentityAccountLink.created_at.asc())
+                .all()
+            )
+            return tuple(_link_ref(link) for link in links)
diff --git a/src/govoplan_identity/backend/manifest.py b/src/govoplan_identity/backend/manifest.py
new file mode 100644
index 0000000..5b92583
--- /dev/null
+++ b/src/govoplan_identity/backend/manifest.py
@@ -0,0 +1,51 @@
+from __future__ import annotations
+
+from govoplan_core.core.identity import CAPABILITY_IDENTITY_DIRECTORY
+from govoplan_core.core.module_guards import persistent_table_uninstall_guard
+from govoplan_core.core.modules import DocumentationTopic, MigrationSpec, ModuleContext, ModuleManifest
+from govoplan_core.db.base import Base
+from govoplan_identity.backend.db import models as identity_models  # noqa: F401 - populate metadata
+
+
+def _identity_directory(context: ModuleContext) -> object:
+    del context
+    from govoplan_identity.backend.directory import SqlIdentityDirectory
+
+    return SqlIdentityDirectory()
+
+
+manifest = ModuleManifest(
+    id="identity",
+    name="Identity",
+    version="0.1.6",
+    migration_spec=MigrationSpec(module_id="identity", metadata=Base.metadata),
+    uninstall_guard_providers=(
+        persistent_table_uninstall_guard(
+            identity_models.Identity,
+            identity_models.IdentityAccountLink,
+            label="Identity",
+        ),
+    ),
+    capability_factories={
+        CAPABILITY_IDENTITY_DIRECTORY: _identity_directory,
+    },
+    documentation=(
+        DocumentationTopic(
+            id="identity.model",
+            title="Identity directory",
+            summary="Identity owns normalized subjects and links them to platform accounts. Access owns authorization.",
+            body=(
+                "An identity can have multiple accounts. Identity facts remain separate from authentication sessions, "
+                "organization functions, and permission decisions."
+            ),
+            layer="configured",
+            documentation_types=("admin", "user"),
+            audience=("tenant_admin", "access_admin", "operator"),
+            order=24,
+        ),
+    ),
+)
+
+
+def get_manifest() -> ModuleManifest:
+    return manifest
diff --git a/src/govoplan_identity/py.typed b/src/govoplan_identity/py.typed
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/src/govoplan_identity/py.typed
@@ -0,0 +1 @@
+