Workbench

Every part of the Dev workbench is interactive: panels resize by dragging separators, collapse with the toggles in the tab bar, and remember their state.

Project selector

Top right of the workbench. It works like the folder picker in VS Code/Cursor:

Recent projects - the last projects you opened, one click to switch back.
Quick access roots - home directory, filesystem root, and (under WSL) Windows drives like /mnt/c.
Browse - a folder browser dialog to navigate the filesystem.
Type a path - paste or type any absolute path (/home/me/app, /mnt/c/Users/me/proj, a mounted server path…).

Selecting a project sets the workspace scope of the active agent session: the file tree, terminals, diagnostics, git status, and every agent tool operate inside that folder. If no agent session exists yet, one is created automatically with that scope.

Environments detected: Linux, WSL (with Windows interop), macOS, Windows.

Explorer

Lazy-loaded file tree of the project.
Create, rename, and delete files and folders.
Click a file to open it in an editor tab.
Collapsible with the panel toggle; resizable by dragging its edge.

Editor

CodeMirror-based, with syntax highlighting per language and dark/light themes.
Multiple tabs, unsaved-draft indicator, save with the toolbar button or Ctrl/Cmd+S.
Inline diagnostics: Python files are checked with Ruff, JSON files with a parser. Errors and warnings are underlined (squiggles) and listed in the status bar. Diagnostics refresh on open and on save.
Files mentioned by the agent in chat are clickable and open directly in the editor.

Terminals

Real PTY terminals inside the workbench, multiple tabs.
Shell picker: bash, sh, zsh when available - and under WSL, Windows interop shells: PowerShell and cmd.exe.
Full interactivity (arrows, ctrl-keys, TUI apps), resizable and collapsible panel.
The agent's own shell executions stream into the chat; your terminals are yours.

Preview / Browser

Built-in preview pane for running web apps (dev servers, etc.).
Switch the center area between editor and browser modes; the preview URL is editable and reloadable.

Agent chat panel

Right-hand panel, resizable by dragging the separator and hideable with the panel toggle.
Multiple agents: each tab is an independent chat session with its own agent loop, memory, name, and workspace scope. Create with + (you are prompted for a name), rename by double-clicking the tab, close with ×.
A green dot marks agents that are currently running.
The chat renders the agent's work live: reasoning steps, tool calls, file diffs, command output - Cursor-style structured blocks.

Status bar

Bottom of the workbench, VS Code-style:

Item	Meaning
Environment	`WSL`, `Linux`, `macOS`… detected from the backend
Git	current branch, dirty indicator, ahead/behind counts (refreshes periodically and on save)
Project	active project name
Active file	filename plus its error/warning counts from diagnostics

Checkpoints

Before every prompt, Navin snapshots the session (conversation + tracked file contents). Use /checkpoint list, /checkpoint restore <name> [all|chat|code], /checkpoint save [note], /checkpoint delete <name>. Checkpoints complement git - they are quick rewind points, not version control.

Commands
Actions