From 1267a1bac50fcb6ee7145ceaef65857d64691c71 Mon Sep 17 00:00:00 2001
From: YeonGyu-Kim <code.yeon.gyu@gmail.com>
Date: Tue, 6 Jan 2026 12:05:26 +0900
Subject: [PATCH] feat(background-agent): support 0 as unlimited concurrency
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Setting concurrency to 0 means unlimited (Infinity).
Works for defaultConcurrency, providerConcurrency, and modelConcurrency.

🤖 Generated with [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)
---
 src/features/background-agent/concurrency.ts | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/src/features/background-agent/concurrency.ts b/src/features/background-agent/concurrency.ts
index 1475fc53..e9d24b8c 100644
--- a/src/features/background-agent/concurrency.ts
+++ b/src/features/background-agent/concurrency.ts
@@ -10,14 +10,20 @@ export class ConcurrencyManager {
   }
 
   getConcurrencyLimit(model: string): number {
-    if (this.config?.modelConcurrency?.[model]) {
-      return this.config.modelConcurrency[model]
+    const modelLimit = this.config?.modelConcurrency?.[model]
+    if (modelLimit !== undefined) {
+      return modelLimit === 0 ? Infinity : modelLimit
     }
     const provider = model.split('/')[0]
-    if (this.config?.providerConcurrency?.[provider]) {
-      return this.config.providerConcurrency[provider]
+    const providerLimit = this.config?.providerConcurrency?.[provider]
+    if (providerLimit !== undefined) {
+      return providerLimit === 0 ? Infinity : providerLimit
     }
-    return this.config?.defaultConcurrency ?? 5
+    const defaultLimit = this.config?.defaultConcurrency
+    if (defaultLimit !== undefined) {
+      return defaultLimit === 0 ? Infinity : defaultLimit
+    }
+    return 5
   }
 
   async acquire(model: string): Promise<void> {