feat(extensions): Introducing a Chat extension in Superset

[EnxDev]

SUMMARY

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[bito-code-review]

Code Review Agent Run #fe8a10

Actionable Suggestions - 0

Additional Suggestions - 5

• superset-frontend/packages/superset-core/src/navigation/index.ts - 1

  • Missing unit tests for navigation module · Line 1-84
    The new `navigation` module lacks unit tests. Per BITO.md rule [11730], new tools should include tests covering success paths, error scenarios, and edge cases. Compare with the test patterns in `superset-frontend/spec/helpers/` for the appropriate Jest + React Testing Library setup.
• superset-frontend/src/core/utils.ts - 1

  • Missing unit tests for new utilities · Line 66-95
    No unit tests exist for `createEventEmitter` or `createEmitter`. Per testing guidelines, new utilities should have tests covering success paths, error scenarios, and edge cases like multiple listeners and `this` binding.
• superset-frontend/src/core/navigation/index.ts - 1

  • Duplicate explore path checks · Line 37-38
    Lines 37 and 38 have semantically identical checks for 'explore' page type. This duplication increases maintenance burden and could lead to divergence if paths diverge in the future.
• superset-frontend/src/views/App.tsx - 1

  • Redundant feature flag guard · Line 123-123
    The feature flag check on line 123 is redundant. `ChatMount` internally returns `null` when no chat extension is registered (via `useSyncExternalStore`), and `ExtensionsStartup` already guards its extension initialization with the same flag. The double-check adds maintenance burden without improving behavior.
• superset-frontend/src/extensions/ExtensionsList.tsx - 1

  • Dead code with orphaned backend API · Line 1-95
    This component was deleted as unused dead code. No references to `ExtensionsList` exist elsewhere in the codebase. However, the backend API endpoint `/api/v1/extensions/` in `ExtensionsRestApi.get_list` still exists and serves the same data. If this UI was intentionally removed, consider whether the backend endpoint should also be removed for consistency, or document why the API remains without a frontend consumer.

Filtered by Review Rules

Bito filtered these suggestions based on rules created automatically for your feedback. Manage rules.

• superset-extensions-cli/src/superset_extensions_cli/cli.py - 1

  • Invalid attribute access · Line 182-182
• superset-frontend/packages/superset-core/src/views/index.ts - 1

  • Test assertions need updating for new field · Line 48-56
• superset/extensions/utils.py - 1

  • CWE-483: Deleting Non-Existent Field · Line 244-244
• superset-frontend/packages/superset-core/src/index.ts - 5

  • Missing unit tests for chat module · Line 21-21
  • Missing unit tests for dashboard module · Line 23-23
  • Missing unit tests for dataset module · Line 24-24
  • Missing unit tests for explore module · Line 26-26
  • Missing unit tests for navigation module · Line 29-29

Review Details

• Files reviewed - 51 · Commit Range: 380e700..568337f

  • superset-core/src/superset_core/extensions/types.py
  • superset-extensions-cli/src/superset_extensions_cli/cli.py
  • superset-extensions-cli/tests/test_cli_build.py
  • superset-frontend/packages/superset-core/src/chat/index.ts
  • superset-frontend/packages/superset-core/src/common/index.ts
  • superset-frontend/packages/superset-core/src/contributions/index.ts
  • superset-frontend/packages/superset-core/src/dashboard/index.ts
  • superset-frontend/packages/superset-core/src/dataset/index.ts
  • superset-frontend/packages/superset-core/src/explore/index.ts
  • superset-frontend/packages/superset-core/src/index.ts
  • superset-frontend/packages/superset-core/src/navigation/index.ts
  • superset-frontend/packages/superset-core/src/views/index.ts
  • superset-frontend/packages/superset-ui-core/src/components/Select/Select.tsx
  • superset-frontend/playwright/tests/dashboard/clear-all-filters.spec.ts
  • superset-frontend/src/components/ChatMount/ChatMount.test.tsx
  • superset-frontend/src/components/ChatMount/index.tsx
  • superset-frontend/src/core/chat/index.test.ts
  • superset-frontend/src/core/chat/index.ts
  • superset-frontend/src/core/dashboard/index.test.ts
  • superset-frontend/src/core/dashboard/index.ts
  • superset-frontend/src/core/dataset/index.ts
  • superset-frontend/src/core/explore/index.test.ts
  • superset-frontend/src/core/explore/index.ts
  • superset-frontend/src/core/index.ts
  • superset-frontend/src/core/navigation/index.test.ts
  • superset-frontend/src/core/navigation/index.ts
  • superset-frontend/src/core/sqlLab/index.ts
  • superset-frontend/src/core/sqlLab/sqlLab.test.ts
  • superset-frontend/src/core/utils.ts
  • superset-frontend/src/core/views/index.ts
  • superset-frontend/src/extensions/ExtensionsList.test.tsx
  • superset-frontend/src/extensions/ExtensionsList.tsx
  • superset-frontend/src/extensions/ExtensionsLoader.test.ts
  • superset-frontend/src/extensions/ExtensionsLoader.ts
  • superset-frontend/src/extensions/ExtensionsStartup.test.tsx
  • superset-frontend/src/extensions/ExtensionsStartup.tsx
  • superset-frontend/src/extensions/supersetGlobal.ts
  • superset-frontend/src/features/datasets/AddDataset/EditDataset/EditDataset.test.tsx
  • superset-frontend/src/features/datasets/AddDataset/EditDataset/index.tsx
  • superset-frontend/src/features/roles/RoleListEditModal.test.tsx
  • superset-frontend/src/middleware/loggerMiddleware.ts
  • superset-frontend/src/views/App.tsx
  • superset-frontend/src/views/routes.tsx
  • superset/extensions/api.py
  • superset/extensions/utils.py
  • superset/initialization/__init__.py
  • superset/migrations/versions/2026-05-25_00-00_b2c3d4e5f6a7_add_extension_settings.py
  • superset/migrations/versions/2026-06-09_00-00_d1e2f3a4b5c6_drop_extension_enabled.py
  • superset/migrations/versions/2026-06-10_00-00_e2f3a4b5c6d7_drop_extension_settings.py
  • tests/unit_tests/extensions/test_api.py
  • tests/unit_tests/extensions/test_types.py
• Files skipped - 1

  • superset-frontend/packages/superset-core/package.json - Reason: Filter setting
• Tools

  • Whispers (Secret Scanner) - ✔︎ Successful
  • Detect-secrets (Secret Scanner) - ✔︎ Successful
  • Eslint (Linter) - ✔︎ Successful
  • MyPy (Static Code Analysis) - ✔︎ Successful
  • Astral Ruff (Static Code Analysis) - ✔︎ Successful

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 64.30%. Comparing base (a27ec19) to head (ce0fcf9).
⚠️ Report is 31 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #41006      +/-   ##
==========================================
- Coverage   64.31%   64.30%   -0.01%     
==========================================
  Files        2652     2652              
  Lines      144817   144759      -58     
  Branches    33419    33409      -10     
==========================================
- Hits        93136    93091      -45     
+ Misses      50017    50002      -15     
- Partials     1664     1666       +2     

Flag	Coverage Δ
hive	39.33% <ø> (ø)
mysql	58.03% <ø> (ø)
postgres	58.10% <ø> (-0.01%)	⬇️
presto	40.90% <ø> (ø)
python	59.55% <ø> (-0.01%)	⬇️
sqlite	57.76% <ø> (ø)
unit	100.00% <ø> (ø)

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[EnxDev]

Closed in favor of #41205, which includes all the changes from this PR.