TODO

Add URL context for all models. Pending API stablization
Edit existing connection
Bug: abort error lingers after role switch
When user pastes html partial text, convert it to markdown
Download code block should map lang to file extension
Light theme: remove? fix?
Drag and drop file as upload
Share readable file size algorithm with token counter algorithm
Language override for editor
Reference pinned code blocks
Migrate from styled components to CSS
Investigate initial script loading size
Auto scroll to bottom
Handle markdown table horizontal overflow
Code block change tracking should use precise positions rather than regex matching
Up/down arrow for chat item (including menu actions) navigation
Multi-headed concurrent chat
Sticky view/edit mode for each node
Manually append nodes
Preserve cursor position when switching between edit and view mode
Pin nodes from trim
Refactor: replace onCopy hook with onGetCopyText so host can manage copy lifecycle

DONE

Add search grounding from major providers
Use code editor for all chat messages input: handle paste, abort, hint text, focus management
Triple tick run block with edit macro that exposes file type specific hooks for efficient edit
Closing artifact while it is compiling left iframe on main thread
Migrate artifact to use shared editor
Bug: block action cannot handle long text
Bug: esplay should not transform url imports
When typing triple backtick in the beginning of chat box, auto switch to code mode
Bug: content doesn't initially render after role swithc from user to assistant
Manual code interpreter (with shebang line)
Support model specific options, e.g. thinking budget
Input token counter
Lazy init web worker
Token usage indicator
Bug: escape from code editor loses focus
Bug: trim during generation caused unwanted new nodes
Busy indicator
Show the abort control on the target node, not source node
Abort from any node
Code editor in any role
Allow dynamic role toggle
Keyboard navigation for chat item menu
Migrate to google genai sdk, pending googleapis/js-genai#402
Fixed: mermaid dialog no longer visible
Offload highlighting to worker
CPU throttling for markdown rendering
Use rxjs to handle streaming
Use spawn cursor to allow selection during generation
Bug: svg cannot be rendered under the xml lang name
Bug: cannot open artifact when it lacks a lang attribute
Avoid re-rendering using rxjs
Refactor tree to be flat array
Refactor tree nodes into a reducer or rxjs store