From f7517fbd1bf4202afb205b8aac48618085231217 Mon Sep 17 00:00:00 2001
From: Chris Wanstrath <chris@ozmm.org>
Date: Tue, 17 Feb 2026 20:15:09 -0800
Subject: [PATCH] optional prompt for `new`

---
 src/cli.ts | 5 +++--
 src/vm.ts  | 9 ++++-----
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/cli.ts b/src/cli.ts
index 077c3fe..c23ab17 100755
--- a/src/cli.ts
+++ b/src/cli.ts
@@ -18,8 +18,9 @@ program.name("sandlot").description("Branch-based development with git worktrees
 program
   .command("new")
   .argument("<branch>", "branch name")
+  .argument("[prompt]", "initial prompt for Claude")
   .description("Create a new session and launch Claude")
-  .action(async (branch: string) => {
+  .action(async (branch: string, prompt?: string) => {
     const root = await git.repoRoot()
     const worktreeRel = `.sandlot/${branch}`
     const worktreeAbs = join(root, worktreeRel)
@@ -43,7 +44,7 @@ program
       created_at: new Date().toISOString(),
     })
 
-    await vm.claude(worktreeAbs)
+    await vm.claude(worktreeAbs, prompt)
   })
 
 // ── sandlot list ──────────────────────────────────────────────────────
diff --git a/src/vm.ts b/src/vm.ts
index 2fb5717..19da88d 100644
--- a/src/vm.ts
+++ b/src/vm.ts
@@ -65,13 +65,12 @@ async function loadEnv(): Promise<Record<string, string>> {
 }
 
 /** Launch claude in the VM at the given workdir. */
-export async function claude(workdir: string): Promise<void> {
+export async function claude(workdir: string, prompt?: string): Promise<void> {
   const env = await loadEnv()
   const envArgs = Object.entries(env).map(([k, v]) => `${k}=${v}`)
-  const proc = Bun.spawn(
-    ["limactl", "shell", `--workdir=${workdir}`, VM_NAME, "env", ...envArgs, "claude", "--dangerously-skip-permissions"],
-    { stdin: "inherit", stdout: "inherit", stderr: "inherit" },
-  )
+  const args = ["limactl", "shell", `--workdir=${workdir}`, VM_NAME, "env", ...envArgs, "claude", "--dangerously-skip-permissions"]
+  if (prompt) args.push(prompt)
+  const proc = Bun.spawn(args, { stdin: "inherit", stdout: "inherit", stderr: "inherit" })
   await proc.exited
 }