feat: add schema tools (create_table, add_column, modify_column, delete_column)

src/grist_mcp/tools/schema.py

@@ -0,0 +1,84 @@
+"""Schema tools - create and modify tables and columns."""
+
+from grist_mcp.auth import Agent, Authenticator, Permission
+from grist_mcp.grist_client import GristClient
+
+
+async def create_table(
+    agent: Agent,
+    auth: Authenticator,
+    document: str,
+    table_id: str,
+    columns: list[dict],
+    client: GristClient | None = None,
+) -> dict:
+    """Create a new table with columns."""
+    auth.authorize(agent, document, Permission.SCHEMA)
+
+    if client is None:
+        doc = auth.get_document(document)
+        client = GristClient(doc)
+
+    created_id = await client.create_table(table_id, columns)
+    return {"table_id": created_id}
+
+
+async def add_column(
+    agent: Agent,
+    auth: Authenticator,
+    document: str,
+    table: str,
+    column_id: str,
+    column_type: str,
+    formula: str | None = None,
+    client: GristClient | None = None,
+) -> dict:
+    """Add a column to a table."""
+    auth.authorize(agent, document, Permission.SCHEMA)
+
+    if client is None:
+        doc = auth.get_document(document)
+        client = GristClient(doc)
+
+    created_id = await client.add_column(table, column_id, column_type, formula=formula)
+    return {"column_id": created_id}
+
+
+async def modify_column(
+    agent: Agent,
+    auth: Authenticator,
+    document: str,
+    table: str,
+    column_id: str,
+    type: str | None = None,
+    formula: str | None = None,
+    client: GristClient | None = None,
+) -> dict:
+    """Modify a column's type or formula."""
+    auth.authorize(agent, document, Permission.SCHEMA)
+
+    if client is None:
+        doc = auth.get_document(document)
+        client = GristClient(doc)
+
+    await client.modify_column(table, column_id, type=type, formula=formula)
+    return {"modified": True}
+
+
+async def delete_column(
+    agent: Agent,
+    auth: Authenticator,
+    document: str,
+    table: str,
+    column_id: str,
+    client: GristClient | None = None,
+) -> dict:
+    """Delete a column from a table."""
+    auth.authorize(agent, document, Permission.SCHEMA)
+
+    if client is None:
+        doc = auth.get_document(document)
+        client = GristClient(doc)
+
+    await client.delete_column(table, column_id)
+    return {"deleted": True}