Introduce a dedicated Zustand ArtifactSlice to manage artifact selection
state with mutual exclusion against the main file tree. Artifact files
from the sandbox can now be opened as tabs in the skill editor, rendered
via a lightweight ArtifactContentPanel that reuses ReadOnlyFilePreview.
Implement ReadOnlyFilePreview to render sandbox files by type
(code, markdown, image, video, SQLite, unsupported) using existing
skill viewer components with readOnly support. Add
useSandboxFileDownloadUrl and useFetchTextContent hooks for data
fetching, and generalize useFileTypeInfo to accept any file-like
object.
Replaces window.open with the downloadUrl helper from utils/download.ts
to trigger proper browser download behavior via <a download> instead of
opening a new tab that may display garbled content.
Use shared object reference instead of separate variables to track
upload progress across concurrent Promise.all operations, preventing
progress bar from showing incorrect or regressing values.
Introduce prepareSkillUploadFile utility that wraps markdown file content
in a JSON payload format before uploading. This ensures consistent handling
of skill files across file upload, folder upload, and drag-and-drop operations.
Replace simple uploading/success indicator with a full three-state
tooltip (uploading, success, partial_error) that overlays the DropTip
position. Add upload slice to skill editor store and wire progress
tracking into file/folder upload operations.
Use useRef to store saveFile reference and remove it from useEffect
dependencies to prevent cleanup from re-triggering on reference changes.
Also normalize metadata before comparison when clearing dirty state to
ensure filtered tools match correctly.
Cover Ctrl+S and Cmd+S save triggers, guard clauses for start tab and
null active tab, success/error toast notifications, and fallback
registry integration.
Move global keyboard shortcut handling from component-level hook to
SkillSaveProvider, eliminating duplicate event listener registrations
and race conditions. Delete use-skill-file-save hook as its logic is
now consolidated in the provider with direct store access.
- use cleanup-based save on tab switch with stable fallback snapshots
- add fallback registry for metadata-only autosave consistency
- add autosave/save-manager tests
Centralize file save operations using Context/Provider pattern for better
maintainability. Add auto-save on tab switch, visibility change, page unload,
and component unmount.
- Add guards in tool-block component to skip metadata read/write when Start tab is active
- Add guard in tool-picker-block to prevent writing tool config to Start tab
- Add guard in use-sync-tree-with-active-tab to skip tree sync for Start tab
- Add START_TAB_ID constant and StartTabItem/StartTabContent components
- Default to Start tab when no file tabs are open
- Optimize zustand selectors to subscribe to specific Map values instead of
entire Map objects, reducing unnecessary re-renders when other tabs change
- Refactor useSkillFileSave to accept precise values instead of Map/Set
Optimize folder upload by creating folders at the same depth level in
parallel and uploading all files concurrently. This reduces upload time
from O(n) sequential requests to O(depth) folder requests + 1 file request.
Switch from whitelist to blacklist pattern for determining editable files.
Files are now editable unless they are known binary types (audio, archives,
executables, Office documents, fonts, etc.), enabling support for any
runtime-generated text files without needing to add extensions one by one.
Replace event-based auto-expand trigger with Zustand state-driven
approach. Now both external file uploads and internal node drag use
the same isDragOver state as the single source of truth for folder
auto-expand timing (1s blink, 2s expand).
Simplify file drop hooks by removing the unnecessary useUnifiedDrag
wrapper that became redundant after internal node drag was migrated
to react-arborist's built-in system. Now useFolderFileDrop and
useRootFileDrop directly use useFileDrop, reducing code complexity
and eliminating unused treeChildren prop drilling.
Switch from native HTML5 drag to react-arborist's built-in drag system
for internal node drag-and-drop. The HTML5Backend used by react-arborist
was intercepting dragstart events, preventing native drag from working.
- Add onMove callback and disableDrop validation to Tree component
- Sync react-arborist drag state (isDragging, willReceiveDrop) to Zustand
- Simplify use-node-move to only handle API execution
- Update use-unified-drag to only handle external file uploads
- External file drops continue to work via native HTML5 events
Implement unified drag system that supports both internal node moves
and external file uploads with consistent UI feedback. Uses native
HTML5 drag API with shared visual states (isDragOver, isBlinking,
DragActionTooltip showing 'Move to' or 'Upload to').
Remove the Office file placeholder that only showed "Preview will be
supported in a future update" without any download option. Office files
(pdf, doc, docx, xls, xlsx, ppt, pptx) now fall through to the generic
"unsupported file" handler which provides a download button.
Removed:
- OfficeFilePlaceholder component
- isOfficeFile function and OFFICE_EXTENSIONS constant
- isOffice flag from useFileTypeInfo hook
- i18n keys for officePlaceholder
This simplifies the file type handling to just three categories:
- Editable: markdown, code, text files → editor
- Previewable: image, video files → media preview
- Everything else: download button
Change useSkillFileData to use isEditable instead of isMediaFile:
- Editable files (markdown, code, text) fetch file content for editing
- Non-editable files (image, video, office, unsupported) fetch download URL
This fixes the download button for unsupported files which was incorrectly
using file content (UTF-8 decoded garbage) instead of the presigned URL.
Extract business logic into dedicated hooks to reduce component complexity:
- useFileTypeInfo: file type detection (markdown, code, image, video, etc.)
- useSkillFileData: data fetching with conditional API calls
- useSkillFileSave: save logic with Ctrl+S keyboard shortcut
Also fix Vercel best practice: use ternary instead of && for conditional rendering.
- Add constants.ts with ROOT_ID, CONTEXT_MENU_TYPE, NODE_MENU_TYPE
- Add root utilities to tree-utils.ts (isRootId, toApiParentId, etc.)
- Replace '__root__' with ROOT_ID for consistent root identifier
- Replace inline 'blank'/'root' strings with constants
- Use NodeMenuType for type-safe menu type props
- Remove duplicate ContextMenuType from types.ts, use from constants.ts
Remove redundant createTargetNodeId and use selectedTreeNodeId for both
visual highlight and creation target. This simplifies the state management
by having a single source of truth for tree selection, similar to VSCode's
file explorer behavior where both files and folders can be selected.
Split use-file-operations.ts (248 lines) into smaller focused hooks:
- use-create-operations.ts for file/folder creation and upload
- use-modify-operations.ts for rename and delete operations
- use-file-operations.ts now serves as orchestrator maintaining backward compatibility
Extract TreeNodeIcon component from tree-node.tsx for cleaner separation of concerns.
Add brief comments to drag hooks explaining their purpose and relationships.
When dragging files over a closed folder, the highlight now blinks
during the second half of the 2-second hover period to signal that
the folder is about to expand. This provides better visual feedback
similar to VSCode's drag-and-drop behavior.
Use Promise.all for concurrent file uploads instead of sequential
processing, improving upload performance for multiple files. Also
add isFileDrag check to handleFolderDragOver for consistency with
other drag handlers.
Enable users to drag files from their system directly into the file tree
to upload them. Files can be dropped on the tree container (uploads to root)
or on specific folders. Hovering over a closed folder for 2 seconds auto-
expands it. Uses Zustand for drag state management instead of React Context
for better performance.
