From 6aa157cfe6195effa6f9fea3dc18380a48544489 Mon Sep 17 00:00:00 2001
From: Dax Raad <d@ironbay.co>
Date: Tue, 12 Aug 2025 14:51:13 -0400
Subject: [PATCH] limit bash tool to 1000 lines of output

---
 packages/opencode/src/tool/bash.ts | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/packages/opencode/src/tool/bash.ts b/packages/opencode/src/tool/bash.ts
index b6266dc2..4e54d798 100644
--- a/packages/opencode/src/tool/bash.ts
+++ b/packages/opencode/src/tool/bash.ts
@@ -12,7 +12,6 @@ import { Wildcard } from "../util/wildcard"
 import { $ } from "bun"
 import { Agent } from "../agent/agent"
 
-const MAX_OUTPUT_LENGTH = 30000
 const DEFAULT_TIMEOUT = 1 * 60 * 1000
 const MAX_TIMEOUT = 10 * 60 * 1000
 
@@ -107,7 +106,6 @@ export const BashTool = Tool.define("bash", {
     const process = exec(params.command, {
       cwd: app.path.cwd,
       signal: ctx.abort,
-      maxBuffer: MAX_OUTPUT_LENGTH,
       timeout,
     })
 
@@ -155,6 +153,12 @@ export const BashTool = Tool.define("bash", {
       },
     })
 
+    const lines = output.split("\n")
+    if (lines.length > 1000) {
+      output = lines.slice(0, 1000).join("\n")
+      output += "\n\n(Ouput was truncated)"
+    }
+
     return {
       title: params.command,
       metadata: {