From 52a9e3aaa48fde961c6014d9ddef073840c897cd Mon Sep 17 00:00:00 2001
From: ztimson <zaktimson@gmail.com>
Date: Thu, 30 Jul 2026 22:12:49 -0400
Subject: [PATCH] Fixed history poisoning on empty tool response

---
 package.json   | 2 +-
 src/open-ai.ts | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/package.json b/package.json
index 92894ae..775628c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@ztimson/ai-utils",
-	"version": "1.2.10",
+	"version": "1.2.11",
 	"description": "AI Utility library",
 	"author": "Zak Timson",
 	"license": "MIT",
diff --git a/src/open-ai.ts b/src/open-ai.ts
index e4195bb..8110196 100644
--- a/src/open-ai.ts
+++ b/src/open-ai.ts
@@ -29,11 +29,11 @@ export class OpenAi extends LLMProvider {
 				}));
 				history.splice(i, 1, ...tools);
 				i += tools.length - 1;
-			} else if(h.role === 'tool' && h.content) {
+			} else if(h.role === 'tool') {
 				const record = history.find(h2 => h.tool_call_id == h2.id);
 				if(record) {
-					if(h.content.includes('"error":')) record.error = h.content;
-					else record.content = h.content;
+					if(h.content?.includes('"error":')) record.error = h.content;
+					else record.content = h.content || '';
 				}
 				history.splice(i, 1);
 				i--;