From e905b66662d2b37da8369636e8bc9e6de7a7b4eb Mon Sep 17 00:00:00 2001
From: unknown <that-github-user@github.com>
Date: Sat, 28 Mar 2026 16:19:07 -0700
Subject: [PATCH] Create worktrees in parallel to reduce startup latency

Replace sequential worktree creation loop with Promise.all. Each
worktree has a unique UUID branch name so parallel creation is safe.
Progress logging batched after all worktrees are created.

Generated by thinktank Opus (5 agents, 4 pass, Copeland: #1 at +2).

Closes #76

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 src/commands/run.ts | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/commands/run.ts b/src/commands/run.ts
index 6c7b118..0f71c09 100644
--- a/src/commands/run.ts
+++ b/src/commands/run.ts
@@ -73,10 +73,14 @@ export async function run(opts: RunOptions): Promise<void> {
   };
   process.on("SIGINT", handleSigint);
 
-  for (let i = 1; i <= opts.attempts; i++) {
-    const path = await createWorktree(i);
-    worktrees.push({ id: i, path });
-    console.log(`    Agent #${i}: ${path}`);
+  const worktreeResults = await Promise.all(
+    Array.from({ length: opts.attempts }, (_, i) =>
+      createWorktree(i + 1).then((path) => ({ id: i + 1, path })),
+    ),
+  );
+  for (const wt of worktreeResults) {
+    worktrees.push(wt);
+    console.log(`    Agent #${wt.id}: ${wt.path}`);
   }
   console.log();