diff --git a/src/cli.ts b/src/cli.ts
index 67dc353..52329a6 100755
--- a/src/cli.ts
+++ b/src/cli.ts
@@ -105,8 +105,10 @@ program
 program
   .command("open")
   .argument("<branch>", "branch name")
+  .argument("[prompt]", "initial prompt for Claude")
+  .option("-p, --print <prompt>", "run Claude in non-interactive mode with -p")
   .description("Re-enter an existing session")
-  .action(async (branch: string) => {
+  .action(async (branch: string, prompt: string | undefined, opts: { print?: string }) => {
     const root = await git.repoRoot()
     const session = await state.getSession(root, branch)
 
@@ -119,7 +121,8 @@ program
     await vm.ensure((msg) => { spin.text = msg })
     spin.succeed("Session ready")
 
-    await vm.claude(session.worktree)
+    if (opts.print) console.log(`Running prompt…`)
+    await vm.claude(session.worktree, { prompt, print: opts.print })
   })
 
 // ── sandlot close <branch> ───────────────────────────────────────────