aminghadersohi opened a new pull request, #40300:
URL: https://github.com/apache/superset/pull/40300
### SUMMARY
Adds `list_tags` and `get_tag_info` MCP tools in a new
`superset/mcp_service/tag/` domain, following the established pattern used by
the database, dataset, and dashboard domains.
**New files:**
- `superset/mcp_service/tag/__init__.py`
- `superset/mcp_service/tag/schemas.py` — `TagFilter`, `TagInfo`, `TagList`,
`ListTagsRequest`, `GetTagInfoRequest`, `TagError`, `serialize_tag_object()`
- `superset/mcp_service/tag/tool/list_tags.py` — list tags with filtering,
search, pagination
- `superset/mcp_service/tag/tool/get_tag_info.py` — get a single tag by
numeric ID
- `tests/unit_tests/mcp_service/tag/tool/test_tag_tools.py` — unit tests
covering basic listing, search, filters, empty results, error handling,
not-found, and type serialization
Both tools are registered in `app.py`.
### BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF
N/A — MCP tool additions only.
### TESTING INSTRUCTIONS
1. Run unit tests:
```bash
pytest tests/unit_tests/mcp_service/tag/
```
2. Start the MCP server and verify `list_tags` and `get_tag_info` appear in
the tool list.
3. Call `list_tags` with no arguments — should return the first page of tags.
4. Call `get_tag_info` with a valid tag ID — should return tag name, type,
and description.
### ADDITIONAL INFORMATION
- [ ] Has associated issue:
- [ ] Required feature flags:
- [ ] Changes UI
- [ ] Includes DB Migration
- [ ] Introduces new feature or API
- [x] Introduces new feature or API — adds two new MCP tools for tag
discovery
- [ ] Removes existing feature or API
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