The mutationFn / onSuccess closures inside every useMutation in
process.ts were created fresh on every render, which made the
mutation result object unstable across renders. TerminalPanel's
terminal-init useEffect has [resize, workspaceId] as deps; with
"resize" changing on every render, the effect re-ran on every
render, which:
- disposed and recreated the xterm Terminal
- re-attached onResize (which fires fit() → onResize → mutate)
- 100ms debounce kept getting reset
- but the effect re-creating itself with new closures every
~16ms kept fit()'s pre-resize state oscillating, eventually
letting the debounce expire and firing the API
Result: /api/workspaces/:id/shell/resize was being spammed.
Fix: wrap every useMutation's mutationFn (and onSuccess where
present) in useCallback with explicit deps. useMutation now sees a
stable config and returns a stable result object. The terminal
effect's dep [resize, workspaceId] no longer changes per render
unless workspaceId actually changes.
Affects: useProcessStart/Stop/Restart, useShellStart/Stop/
Restart/Resize. All same pattern, all same risk.
codespace-web
Frontend IDE shell for the codespace Go backend.
Scope
This package is the codespace web IDE. It connects to the Go backend:
the file explorer and editor call the file APIs, the toolbar drives the
process start/stop/restart endpoints, and the terminal streams the
running OpenCode process over the WebSocket endpoint
/api/workspaces/:id/process/ws.
Commands
| Command | Purpose |
|---|---|
pnpm install |
Install dependencies |
pnpm dev |
Start the Vite dev server (proxies /api and /healthz to http://localhost:8080) |
pnpm lint |
Run ESLint |
pnpm build |
Type-check and build for production |
Stack
- Vite + React 19 + TypeScript
- Tailwind CSS v4
- react-router v7
- Zustand for local UI state
- TanStack Query for API state
@monaco-editor/reacteditor wrapper@xterm/xterm+@xterm/addon-fitterminal wrapperreact-resizable-panelsfor layout splitslucide-reactfor icons
Non-goals
- Authentication
- i18n
- Tests (no test framework until business logic is added)