From 849e9bb40d33df8c0b605bae550bb007938b74fd Mon Sep 17 00:00:00 2001
From: Danny Avila <danny@librechat.ai>
Date: Thu, 3 Sep 2026 11:35:19 -0400
Subject: [PATCH] =?UTF-8?q?=F0=9F=A7=B3=20fix:=20Carry=20Logical=20Endpoin?=
 =?UTF-8?q?ts=20Through=20Agent=20Runs=20(#15538)?=
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* fix(agents): preserve logical endpoints in run inputs

* docs(agents): clarify endpoint input compatibility

* chore: update @librechat/agents to version 3.7.19

* refactor(agents): use released endpoint input type
---
 api/package.json                              |  2 +-
 package-lock.json                             | 10 +++----
 packages/api/package.json                     |  2 +-
 .../__tests__/run-summarization.test.ts       | 29 +++++++++++++++++++
 packages/api/src/agents/run.ts                |  1 +
 5 files changed, 37 insertions(+), 7 deletions(-)

diff --git a/api/package.json b/api/package.json
index 61bbc73bcd..885d87ded1 100644
--- a/api/package.json
+++ b/api/package.json
@@ -46,7 +46,7 @@
     "@azure/storage-blob": "^12.30.0",
     "@google/genai": "^2.8.0",
     "@keyv/redis": "5.1.6",
-    "@librechat/agents": "^3.7.17",
+    "@librechat/agents": "^3.7.19",
     "@librechat/api": "*",
     "@librechat/data-schemas": "*",
     "@microsoft/microsoft-graph-client": "^3.0.7",
diff --git a/package-lock.json b/package-lock.json
index 48b706ca93..633d91590a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -63,7 +63,7 @@
         "@azure/storage-blob": "^12.30.0",
         "@google/genai": "^2.8.0",
         "@keyv/redis": "5.1.6",
-        "@librechat/agents": "^3.7.17",
+        "@librechat/agents": "^3.7.19",
         "@librechat/api": "*",
         "@librechat/data-schemas": "*",
         "@microsoft/microsoft-graph-client": "^3.0.7",
@@ -10633,9 +10633,9 @@
       }
     },
     "node_modules/@librechat/agents": {
-      "version": "3.7.17",
-      "resolved": "https://registry.npmjs.org/@librechat/agents/-/agents-3.7.17.tgz",
-      "integrity": "sha512-aJ3beJxbGNMYaXas0F9M5+e+1A8pjS1ND7TZ8EuEx7BwwN/2qqWn10aIG6Fyqcr/0GPOw8kVkz1BGwAraV3UUg==",
+      "version": "3.7.19",
+      "resolved": "https://registry.npmjs.org/@librechat/agents/-/agents-3.7.19.tgz",
+      "integrity": "sha512-/dHHKBvLoXjX1hFkDJBGP5CjkMp1vS+e3OyLqffa4c7JCenFhOHThBDUdZmCDvoEylRhima0h3fYl/JqCR8+hQ==",
       "license": "MIT",
       "dependencies": {
         "@anthropic-ai/sdk": "^0.115.0",
@@ -42639,7 +42639,7 @@
         "@azure/storage-blob": "^12.30.0",
         "@google/genai": "^2.8.0",
         "@keyv/redis": "5.1.6",
-        "@librechat/agents": "^3.7.17",
+        "@librechat/agents": "^3.7.19",
         "@librechat/data-schemas": "*",
         "@modelcontextprotocol/sdk": "^1.30.0",
         "@opentelemetry/api": "^1.9.0",
diff --git a/packages/api/package.json b/packages/api/package.json
index 8bfdf28f9c..a768105e4b 100644
--- a/packages/api/package.json
+++ b/packages/api/package.json
@@ -113,7 +113,7 @@
     "@azure/storage-blob": "^12.30.0",
     "@google/genai": "^2.8.0",
     "@keyv/redis": "5.1.6",
-    "@librechat/agents": "^3.7.17",
+    "@librechat/agents": "^3.7.19",
     "@librechat/data-schemas": "*",
     "@modelcontextprotocol/sdk": "^1.30.0",
     "@opentelemetry/api": "^1.9.0",
diff --git a/packages/api/src/agents/__tests__/run-summarization.test.ts b/packages/api/src/agents/__tests__/run-summarization.test.ts
index 800a1f387a..b29e85f476 100644
--- a/packages/api/src/agents/__tests__/run-summarization.test.ts
+++ b/packages/api/src/agents/__tests__/run-summarization.test.ts
@@ -323,6 +323,35 @@ afterAll(() => {
   delete process.env.TENANT_ISOLATION_STRICT;
 });
 
+// ---------------------------------------------------------------------------
+// Suite: agent endpoint projection
+// ---------------------------------------------------------------------------
+describe('agent endpoint projection', () => {
+  it('preserves each logical endpoint independently from its resolved provider', async () => {
+    const agents = await callAndCapture({
+      agents: [
+        makeAgent({ id: 'sales-copilot', provider: 'bedrock', endpoint: 'bedrock' }),
+        makeAgent({ id: 'dwaine', provider: 'openAI', endpoint: 'DWAINE' }),
+      ],
+    });
+
+    expect(agents).toEqual(
+      expect.arrayContaining([
+        expect.objectContaining({
+          agentId: 'sales-copilot',
+          endpoint: 'bedrock',
+          provider: 'bedrock',
+        }),
+        expect.objectContaining({
+          agentId: 'dwaine',
+          endpoint: 'DWAINE',
+          provider: 'openAI',
+        }),
+      ]),
+    );
+  });
+});
+
 // ---------------------------------------------------------------------------
 // Suite: custom endpoint stream usage defaults
 // ---------------------------------------------------------------------------
diff --git a/packages/api/src/agents/run.ts b/packages/api/src/agents/run.ts
index f015da0573..95a5278983 100644
--- a/packages/api/src/agents/run.ts
+++ b/packages/api/src/agents/run.ts
@@ -1770,6 +1770,7 @@ export async function createRun({
     const reasoningKey = getReasoningKey(provider, llmConfig, agent.endpoint, agent.reasoningKey);
     const agentInput: AgentInputs = {
       provider,
+      endpoint: agent.endpoint ?? provider,
       reasoningKey,
       toolDefinitions,
       agentId: agent.id,