aminghadersohi opened a new pull request, #40132:
URL: https://github.com/apache/superset/pull/40132
## Summary
Adds a `create_dataset` MCP tool that lets callers register an existing
physical
database table as a Superset dataset — the programmatic equivalent of
**Data → Datasets → + Dataset** in the UI.
- **`CreateDatasetRequest` schema** — `database_id`, `schema`, `table_name`,
optional `owners`
- **`create_dataset` tool** — wraps `CreateDatasetCommand`, returns
`DatasetInfo` (same
shape as `get_dataset_info`) so the `id` feeds directly into
`generate_chart` or
`generate_explore_link`
- **Typed error handling** — distinct `error_type` values for exists /
not-found /
validation / internal errors so callers can act on each case
- **Unit tests** — success, owners, each error case, full `DatasetInfo` shape
- **`DEFAULT_INSTRUCTIONS`** updated to list the new tool
## Motivation
The MCP service already exposes `create_virtual_dataset` for SQL-based
datasets. This
PR adds the physical-table counterpart so agents can complete the full
"find DB → register table → chart it" workflow without manual UI steps.
## Test plan
- [ ] `pytest
tests/unit_tests/mcp_service/dataset/tool/test_create_dataset.py -x`
- [ ] Existing dataset tool tests still pass
- [ ] `pre-commit run --files
superset/mcp_service/dataset/tool/create_dataset.py
superset/mcp_service/dataset/schemas.py`
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