several nice UI improvements

src/main/pty-service.ts

@@ -25,6 +25,19 @@ try {
 const terms = new Map<number, import('node-pty').IPty>()
 let seq = 0
 
+/**
+ * Env for spawned PTYs. Electron launched from a Homebrew/GUI context leaks
+ * `npm_config_prefix` (e.g. "/opt/homebrew") into the child shell, which makes
+ * nvm refuse to load ("nvm is not compatible with the npm_config_prefix
+ * environment variable"). Strip it so the user's shell init runs cleanly.
+ */
+function ptyEnv(): { [key: string]: string } {
+  const env = { ...process.env } as { [key: string]: string }
+  delete env.npm_config_prefix
+  delete env.npm_config_globalconfig
+  return env
+}
+
 function defaultShell(): string {
   const configured = getConfig().terminal.shell
   if (configured) return configured
@@ -39,12 +52,20 @@ export function ptyAvailable(): boolean {
 export function createPty(sender: WebContents, kind: 'agent' | 'shell', cols: number, rows: number): number {
   if (!pty) return -1
   const cwd = getRoot() || process.env.HOME || process.cwd()
-  const proc = pty.spawn(defaultShell(), [], {
+  const shell = defaultShell()
+  const ai = getConfig().ai
+  const launchAgent = kind === 'agent' && ai.autoLaunch && process.platform !== 'win32'
+  // For the agent pane we exec the `claude` CLI directly as the shell's command
+  // (`zsh -i -c 'claude'`) instead of typing it into an interactive prompt — `-i`
+  // still sources the user's rc (nvm etc.), but there's no prompt line and no
+  // echoed command cluttering the pane; claude takes over a clean terminal.
+  const args = launchAgent ? ['-i', '-c', ai.command] : []
+  const proc = pty.spawn(shell, args, {
     name: 'xterm-color',
     cols: cols || 80,
     rows: rows || 24,
     cwd,
-    env: process.env as { [key: string]: string },
+    env: ptyEnv(),
   })
   const id = ++seq
   terms.set(id, proc)
@@ -52,9 +73,8 @@ export function createPty(sender: WebContents, kind: 'agent' | 'shell', cols: nu
   proc.onData((data) => { if (!sender.isDestroyed()) sender.send('pty:data', { id, data }) })
   proc.onExit(() => { terms.delete(id); if (!sender.isDestroyed()) sender.send('pty:exit', { id }) })
 
-  const ai = getConfig().ai
-  if (kind === 'agent' && ai.autoLaunch) {
-    // small delay so the shell prompt is ready before we type the command
+  // Windows path keeps the type-into-shell launch (no `-i -c` semantics there).
+  if (kind === 'agent' && ai.autoLaunch && process.platform === 'win32') {
     setTimeout(() => { try { proc.write(ai.command + '\r') } catch { /* exited */ } }, 350)
   }
   return id