feat(experiments): Add inline add/remove from experiment actions

[shanaiabuggy]

Screen.Recording.2026-07-27.at.2.15.07.PM.mov

Summary by CodeRabbit

Summary

• New Features

  • Added a right-pinned row actions menu for experiment group evaluations, with per-row options to add to another group or remove from the current group.

• Bug Fixes

  • Prevented “remove from group” when it would leave an evaluation in no groups.
  • Improved handling to avoid action conflicts while a row update is in progress.

• Tests

  • Expanded hook tests to cover successful and failing “remove from group” mutation behavior and error toasts.

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📥 Commits

Reviewing files that changed from the base of the PR and between 5afa1fb and 3117dee.

📒 Files selected for processing (1)

• web/packages/studio/src/components/dataViews/ExperimentGroupDataView/useExperimentGroupEvaluations.ts

🚧 Files skipped from review as they are similar to previous changes (1)

• web/packages/studio/src/components/dataViews/ExperimentGroupDataView/useExperimentGroupEvaluations.ts

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📝 Walkthrough

Walkthrough

Adds a right-pinned row actions menu to the experiment group table and implements removeFromGroup with validation, patching, query invalidation, toasts, and tests.

Changes

Experiment group actions

Layer / File(s)	Summary
Group removal mutation and validation web/packages/studio/src/components/dataViews/ExperimentGroupDataView/useExperimentGroupEvaluations.ts, web/packages/studio/src/components/dataViews/ExperimentGroupDataView/useExperimentGroupEvaluations.test.ts	The hook exposes removeFromGroup, blocks removal of the last group, patches remaining experiment_ids, manages mutation state, invalidates queries, and reports success or failure toasts. Tests cover both removal paths.
Pinned row actions menu web/packages/studio/src/components/dataViews/ExperimentGroupDataView/index.tsx	The table adds a right-pinned actions column with “Add to group” and “Remove from group” actions wired to local state and removeFromGroup.

Sequence Diagram(s)

sequenceDiagram
  participant User
  participant QuickActionsMenuRoot
  participant useExperimentGroupEvaluations
  participant usePatchEvaluation
  User->>QuickActionsMenuRoot: Select Remove from group
  QuickActionsMenuRoot->>useExperimentGroupEvaluations: removeFromGroup(row)
  useExperimentGroupEvaluations->>usePatchEvaluation: Patch remaining experiment_ids
  usePatchEvaluation-->>useExperimentGroupEvaluations: Return mutation result

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Possibly related PRs

• NVIDIA-NeMo/nemo-platform#759: Adds evaluation group-membership patching used by removeFromGroup.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly matches the main change: adding inline add/remove actions for experiments.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[coderabbitai]

Actionable comments posted: 1

🧹 Nitpick comments (1)

web/packages/studio/src/components/dataViews/ExperimentGroupDataView/index.tsx (1)

39-44: 📐 Maintainability & Code Quality | 🔵 Trivial | 💤 Low value

Place lucide-react with external imports.

Line 44 is an external import but follows internal @studio imports.

As per coding guidelines, group imports as external libraries, internal modules, then relative imports.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In
`@web/packages/studio/src/components/dataViews/ExperimentGroupDataView/index.tsx`
around lines 39 - 44, Move the lucide-react import containing Columns3,
FolderMinus, FolderPlus, and Pin above the internal `@studio` imports, preserving
the grouping order of external libraries, internal modules, and relative
imports.

Source: Coding guidelines

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In
`@web/packages/studio/src/components/dataViews/ExperimentGroupDataView/useExperimentGroupEvaluations.ts`:
- Around line 195-201: Update the onSuccess handler in the evaluation removal
mutation to return the invalidateList() promise after showing the success toast.
Keep the existing onSettled cleanup unchanged so pendingRef remains locked until
invalidation completes.

---

Nitpick comments:
In
`@web/packages/studio/src/components/dataViews/ExperimentGroupDataView/index.tsx`:
- Around line 39-44: Move the lucide-react import containing Columns3,
FolderMinus, FolderPlus, and Pin above the internal `@studio` imports, preserving
the grouping order of external libraries, internal modules, and relative
imports.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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Configuration used: Path: .coderabbit.yaml

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📥 Commits

Reviewing files that changed from the base of the PR and between ee4dfd8 and a74083a.

📒 Files selected for processing (3)

• web/packages/studio/src/components/dataViews/ExperimentGroupDataView/index.tsx
• web/packages/studio/src/components/dataViews/ExperimentGroupDataView/useExperimentGroupEvaluations.test.ts
• web/packages/studio/src/components/dataViews/ExperimentGroupDataView/useExperimentGroupEvaluations.ts

[github-actions]

Suite	Lines Covered	Line Rate	Branch Rate
Unit Tests	27236/34958	77.9%	62.2%
Integration Tests	15999/33670	47.5%	19.9%