diff --git a/alembic/versions/0026_add_briefing_tables.py b/alembic/versions/0026_add_briefing_tables.py
new file mode 100644
index 0000000..00120ff
--- /dev/null
+++ b/alembic/versions/0026_add_briefing_tables.py
@@ -0,0 +1,75 @@
+"""Add briefing tables: rss_feeds, rss_items, weather_cache, conversation briefing columns."""
+
+from alembic import op
+
+revision = "0026"
+down_revision = "0025"
+
+
+def upgrade() -> None:
+    # Extend conversations table
+    op.execute("""
+        ALTER TABLE conversations
+            ADD COLUMN IF NOT EXISTS conversation_type TEXT NOT NULL DEFAULT 'chat',
+            ADD COLUMN IF NOT EXISTS briefing_date DATE
+    """)
+    op.execute("CREATE INDEX IF NOT EXISTS ix_conversations_type ON conversations(conversation_type)")
+
+    # RSS feeds
+    op.execute("""
+        CREATE TABLE IF NOT EXISTS rss_feeds (
+            id              SERIAL PRIMARY KEY,
+            user_id         INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+            url             TEXT NOT NULL,
+            title           TEXT NOT NULL DEFAULT '',
+            category        TEXT,
+            last_fetched_at TIMESTAMPTZ,
+            CONSTRAINT uq_rss_feeds_user_url UNIQUE (user_id, url)
+        )
+    """)
+    op.execute("CREATE INDEX IF NOT EXISTS ix_rss_feeds_user_id ON rss_feeds(user_id)")
+
+    # RSS items
+    op.execute("""
+        CREATE TABLE IF NOT EXISTS rss_items (
+            id           SERIAL PRIMARY KEY,
+            feed_id      INTEGER NOT NULL REFERENCES rss_feeds(id) ON DELETE CASCADE,
+            guid         TEXT NOT NULL,
+            title        TEXT NOT NULL DEFAULT '',
+            url          TEXT NOT NULL DEFAULT '',
+            published_at TIMESTAMPTZ,
+            content      TEXT NOT NULL DEFAULT '',
+            fetched_at   TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+            CONSTRAINT uq_rss_items_feed_guid UNIQUE (feed_id, guid)
+        )
+    """)
+    op.execute("CREATE INDEX IF NOT EXISTS ix_rss_items_feed_id ON rss_items(feed_id)")
+    op.execute("CREATE INDEX IF NOT EXISTS ix_rss_items_published_at ON rss_items(published_at)")
+
+    # Weather cache
+    op.execute("""
+        CREATE TABLE IF NOT EXISTS weather_cache (
+            id             SERIAL PRIMARY KEY,
+            user_id        INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+            location_key   TEXT NOT NULL,
+            location_label TEXT NOT NULL DEFAULT '',
+            forecast_json  JSONB,
+            previous_json  JSONB,
+            fetched_at     TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+            CONSTRAINT uq_weather_cache_user_location UNIQUE (user_id, location_key)
+        )
+    """)
+    op.execute("CREATE INDEX IF NOT EXISTS ix_weather_cache_user_id ON weather_cache(user_id)")
+
+
+def downgrade() -> None:
+    op.execute("DROP INDEX IF EXISTS ix_weather_cache_user_id")
+    op.execute("DROP TABLE IF EXISTS weather_cache")
+    op.execute("DROP INDEX IF EXISTS ix_rss_items_published_at")
+    op.execute("DROP INDEX IF EXISTS ix_rss_items_feed_id")
+    op.execute("DROP TABLE IF EXISTS rss_items")
+    op.execute("DROP INDEX IF EXISTS ix_rss_feeds_user_id")
+    op.execute("DROP TABLE IF EXISTS rss_feeds")
+    op.execute("DROP INDEX IF EXISTS ix_conversations_type")
+    op.execute("ALTER TABLE conversations DROP COLUMN IF EXISTS briefing_date")
+    op.execute("ALTER TABLE conversations DROP COLUMN IF EXISTS conversation_type")