Add hub-core package, docs, and State Hub integration scaffold

Extract the first reusable slice (models, schemas, routers, MCP, migrations)
from state-hub with INTENT/SCOPE, agent instructions, workplan, and aligned
inter_hub capability registry index.

hub_core/migrations/__init__.py

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+"""Alembic migration templates for hub-core adopters."""

hub_core/migrations/env.py

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+import os
+from logging.config import fileConfig
+
+from alembic import context
+from sqlalchemy import engine_from_config, pool
+
+from hub_core.models import Base
+
+config = context.config
+
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+target_metadata = Base.metadata
+
+db_url = os.environ.get("DATABASE_URL")
+if db_url:
+    sync_url = db_url.replace("postgresql+asyncpg://", "postgresql+psycopg2://")
+    config.set_main_option("sqlalchemy.url", sync_url)
+
+
+def run_migrations_offline() -> None:
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+    with connectable.connect() as connection:
+        context.configure(connection=connection, target_metadata=target_metadata)
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

hub_core/migrations/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}

hub_core/migrations/versions/0001_core_schema.py

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+"""hub-core core schema
+
+Revision ID: 0001_core_schema
+Revises:
+Create Date: 2026-06-06
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects import postgresql
+
+revision: str = "0001_core_schema"
+down_revision: Union[str, None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "domains",
+        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
+        sa.Column("slug", sa.String(50), nullable=False, unique=True),
+        sa.Column("name", sa.String(200), nullable=False),
+        sa.Column("description", sa.Text, nullable=True),
+        sa.Column("status", sa.String(20), nullable=False, server_default="active"),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+    )
+    op.create_index("ix_domains_slug", "domains", ["slug"])
+
+    op.create_table(
+        "managed_repos",
+        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
+        sa.Column("domain_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("domains.id", ondelete="RESTRICT"), nullable=False),
+        sa.Column("slug", sa.String(100), nullable=False, unique=True),
+        sa.Column("name", sa.String(200), nullable=False),
+        sa.Column("local_path", sa.Text, nullable=True),
+        sa.Column("host_paths", postgresql.JSONB(astext_type=sa.Text()), nullable=False, server_default="{}"),
+        sa.Column("remote_url", sa.Text, nullable=True),
+        sa.Column("description", sa.Text, nullable=True),
+        sa.Column("status", sa.String(20), nullable=False, server_default="active"),
+        sa.Column("git_fingerprint", sa.String(40), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+    )
+    op.create_index("ix_managed_repos_domain_id", "managed_repos", ["domain_id"])
+    op.create_index("ix_managed_repos_git_fingerprint", "managed_repos", ["git_fingerprint"])
+    op.create_index("ix_managed_repos_slug", "managed_repos", ["slug"])
+
+    op.create_table(
+        "agent_messages",
+        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
+        sa.Column("from_agent", sa.String(100), nullable=False),
+        sa.Column("to_agent", sa.String(100), nullable=False),
+        sa.Column("subject", sa.String(500), nullable=False),
+        sa.Column("body", sa.Text, nullable=False),
+        sa.Column("thread_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("agent_messages.id", ondelete="SET NULL"), nullable=True),
+        sa.Column("read_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("archived_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+    )
+    op.create_index("ix_agent_messages_created_at", "agent_messages", ["created_at"])
+    op.create_index("ix_agent_messages_thread_id", "agent_messages", ["thread_id"])
+    op.create_index("ix_agent_messages_to_agent_read_at", "agent_messages", ["to_agent", "read_at"])
+
+    op.create_table(
+        "capability_catalog",
+        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
+        sa.Column("domain_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("domains.id", ondelete="RESTRICT"), nullable=False),
+        sa.Column("repo_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("managed_repos.id", ondelete="SET NULL"), nullable=True),
+        sa.Column("capability_type", sa.String(50), nullable=False),
+        sa.Column("title", sa.String(255), nullable=False),
+        sa.Column("description", sa.Text, nullable=True),
+        sa.Column("keywords", postgresql.ARRAY(sa.String()), nullable=False, server_default="{}"),
+        sa.Column("status", sa.String(20), nullable=False, server_default="active"),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+        sa.UniqueConstraint("domain_id", "capability_type", "title", name="uq_catalog_domain_type_title"),
+    )
+    op.create_index("ix_capability_catalog_domain_id", "capability_catalog", ["domain_id"])
+    op.create_index("ix_capability_catalog_repo_id", "capability_catalog", ["repo_id"])
+
+    op.create_table(
+        "capability_requests",
+        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
+        sa.Column("title", sa.String(500), nullable=False),
+        sa.Column("description", sa.Text, nullable=True),
+        sa.Column("capability_type", sa.String(50), nullable=False),
+        sa.Column("priority", sa.String(20), nullable=False, server_default="medium"),
+        sa.Column("status", sa.String(20), nullable=False, server_default="requested"),
+        sa.Column("requesting_domain_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("domains.id", ondelete="RESTRICT"), nullable=False),
+        sa.Column("requesting_agent", sa.String(100), nullable=False),
+        sa.Column("request_context", postgresql.JSONB(astext_type=sa.Text()), nullable=True),
+        sa.Column("fulfilling_domain_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("domains.id", ondelete="SET NULL"), nullable=True),
+        sa.Column("fulfilling_agent", sa.String(100), nullable=True),
+        sa.Column("fulfillment_context", postgresql.JSONB(astext_type=sa.Text()), nullable=True),
+        sa.Column("catalog_entry_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("capability_catalog.id", ondelete="SET NULL"), nullable=True),
+        sa.Column("resolution_note", sa.Text, nullable=True),
+        sa.Column("routing_note", sa.Text, nullable=True),
+        sa.Column("dispute_reason", sa.Text, nullable=True),
+        sa.Column("disputed_by", sa.String(100), nullable=True),
+        sa.Column("dispute_suggested_domain", sa.String(100), nullable=True),
+        sa.Column("disputed_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("accepted_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("completed_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+    )
+    op.create_index("ix_capability_requests_fulfilling_domain_id", "capability_requests", ["fulfilling_domain_id"])
+    op.create_index("ix_capability_requests_requesting_domain_id", "capability_requests", ["requesting_domain_id"])
+
+    op.create_table(
+        "progress_events",
+        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
+        sa.Column("event_type", sa.String(50), nullable=False),
+        sa.Column("summary", sa.Text, nullable=False),
+        sa.Column("detail", postgresql.JSONB(astext_type=sa.Text()), nullable=True),
+        sa.Column("subject_refs", postgresql.JSONB(astext_type=sa.Text()), nullable=True),
+        sa.Column("author", sa.String(100), nullable=True),
+        sa.Column("session_id", sa.String(100), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+    )
+    op.create_index("ix_progress_events_created_at", "progress_events", ["created_at"])
+    op.create_index("ix_progress_events_event_type", "progress_events", ["event_type"])
+
+    op.create_table(
+        "tpsc_catalog",
+        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
+        sa.Column("slug", sa.String(100), nullable=False, unique=True),
+        sa.Column("name", sa.String(200), nullable=False),
+        sa.Column("provider", sa.String(200), nullable=True),
+        sa.Column("category", sa.String(100), nullable=True),
+        sa.Column("website_url", sa.Text, nullable=True),
+        sa.Column("pricing_model", sa.String(20), nullable=False, server_default="unknown"),
+        sa.Column("gdpr_maturity", sa.String(20), nullable=False, server_default="unknown"),
+        sa.Column("gdpr_notes", sa.Text, nullable=True),
+        sa.Column("dpa_available", sa.Boolean, nullable=False, server_default="false"),
+        sa.Column("tos_url", sa.Text, nullable=True),
+        sa.Column("privacy_policy_url", sa.Text, nullable=True),
+        sa.Column("data_processing_regions", postgresql.JSON, nullable=True),
+        sa.Column("data_retention_notes", sa.Text, nullable=True),
+        sa.Column("status", sa.String(20), nullable=False, server_default="active"),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+    )
+    op.create_index("ix_tpsc_catalog_gdpr_maturity", "tpsc_catalog", ["gdpr_maturity"])
+    op.create_index("ix_tpsc_catalog_slug", "tpsc_catalog", ["slug"])
+
+    op.create_table(
+        "tpsc_snapshots",
+        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
+        sa.Column("repo_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("managed_repos.id", ondelete="SET NULL"), nullable=True),
+        sa.Column("snapshot_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+        sa.Column("source_file", sa.String(200), nullable=True),
+        sa.Column("entry_count", sa.Integer, nullable=False, server_default="0"),
+    )
+    op.create_index("ix_tpsc_snapshots_repo_id", "tpsc_snapshots", ["repo_id"])
+
+    op.create_table(
+        "tpsc_entries",
+        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
+        sa.Column("snapshot_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("tpsc_snapshots.id", ondelete="CASCADE"), nullable=False),
+        sa.Column("catalog_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("tpsc_catalog.id", ondelete="SET NULL"), nullable=True),
+        sa.Column("service_slug", sa.String(100), nullable=False),
+        sa.Column("purpose", sa.Text, nullable=True),
+        sa.Column("auth_type", sa.String(50), nullable=True),
+        sa.Column("endpoint_override", sa.Text, nullable=True),
+        sa.Column("notes", sa.Text, nullable=True),
+    )
+    op.create_index("ix_tpsc_entries_service_slug", "tpsc_entries", ["service_slug"])
+    op.create_index("ix_tpsc_entries_snapshot_id", "tpsc_entries", ["snapshot_id"])
+
+
+def downgrade() -> None:
+    op.drop_index("ix_tpsc_entries_snapshot_id", table_name="tpsc_entries")
+    op.drop_index("ix_tpsc_entries_service_slug", table_name="tpsc_entries")
+    op.drop_table("tpsc_entries")
+    op.drop_index("ix_tpsc_snapshots_repo_id", table_name="tpsc_snapshots")
+    op.drop_table("tpsc_snapshots")
+    op.drop_index("ix_tpsc_catalog_slug", table_name="tpsc_catalog")
+    op.drop_index("ix_tpsc_catalog_gdpr_maturity", table_name="tpsc_catalog")
+    op.drop_table("tpsc_catalog")
+    op.drop_index("ix_progress_events_event_type", table_name="progress_events")
+    op.drop_index("ix_progress_events_created_at", table_name="progress_events")
+    op.drop_table("progress_events")
+    op.drop_index("ix_capability_requests_requesting_domain_id", table_name="capability_requests")
+    op.drop_index("ix_capability_requests_fulfilling_domain_id", table_name="capability_requests")
+    op.drop_table("capability_requests")
+    op.drop_index("ix_capability_catalog_repo_id", table_name="capability_catalog")
+    op.drop_index("ix_capability_catalog_domain_id", table_name="capability_catalog")
+    op.drop_table("capability_catalog")
+    op.drop_index("ix_agent_messages_to_agent_read_at", table_name="agent_messages")
+    op.drop_index("ix_agent_messages_thread_id", table_name="agent_messages")
+    op.drop_index("ix_agent_messages_created_at", table_name="agent_messages")
+    op.drop_table("agent_messages")
+    op.drop_index("ix_managed_repos_slug", table_name="managed_repos")
+    op.drop_index("ix_managed_repos_git_fingerprint", table_name="managed_repos")
+    op.drop_index("ix_managed_repos_domain_id", table_name="managed_repos")
+    op.drop_table("managed_repos")
+    op.drop_index("ix_domains_slug", table_name="domains")
+    op.drop_table("domains")

hub_core/migrations/versions/__init__.py

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+"""hub-core Alembic version templates."""