I’ve set up an agent that has access to my knowledge base via Supabase.
What I’ve found is that it will not check the knowledge database if the information can be accessed with general knowledge, even when there is more specific knowledge in Supabase.
How do I ensure the Agent will always search Supabase before returning an answer?
Here is the json I’m using:
{
“nodes”: [
{
“parameters”: {
“updates”: [
“message”
],
“additionalFields”: {}
},
“type”: “n8n-nodes-base.telegramTrigger”,
“typeVersion”: 1.2,
“position”: [
-1540,
-160
],
“id”: “c9f2d9b1-a53b-4ee5-b3fc-717c81d2b0ac”,
“name”: “Telegram Trigger”,
“webhookId”: “fdf2afe6-7af3-4ead-ab18-9e98cddeaa2d”,
“credentials”: {
“telegramApi”: {
“id”: “puR7DDs1uzKu8mEx”,
“name”: “Telegram account”
}
}
},
{
“parameters”: {
“model”: {
“__rl”: true,
“value”: “gpt-4o”,
“mode”: “list”,
“cachedResultName”: “gpt-4o”
},
“options”: {}
},
“type”: “@n8n/n8n-nodes-langchain.lmChatOpenAi”,
“typeVersion”: 1.2,
“position”: [
-1100,
60
],
“id”: “35497701-6e96-4d34-ba86-c08661edec7e”,
“name”: “OpenAI Chat Model”,
“credentials”: {
“openAiApi”: {
“id”: “DQ2g3lYveHVelyQH”,
“name”: “OpenAi account”
}
}
},
{
“parameters”: {
“promptType”: “define”,
“text”: “={{ $json.message.text }}”,
“options”: {}
},
“type”: “@n8n/n8n-nodes-langchain.agent”,
“typeVersion”: 1.9,
“position”: [
-888,
-160
],
“id”: “131042f8-030f-4d4f-beb9-e14b6ba2f210”,
“name”: “AI Agent”
},
{
“parameters”: {
“chatId”: “={{ $(‘Telegram Trigger’).item.json.message.chat.id }}”,
“text”: “={{ $json.output }}”,
“additionalFields”: {
“appendAttribution”: false,
“parse_mode”: “HTML”
}
},
“type”: “n8n-nodes-base.telegram”,
“typeVersion”: 1.2,
“position”: [
-124,
-160
],
“id”: “cfab799e-fadb-4ad7-b091-a7aa66a0596a”,
“name”: “Telegram”,
“webhookId”: “b730ab4f-317a-4b8b-a85e-e12aa46a7b1e”,
“credentials”: {
“telegramApi”: {
“id”: “puR7DDs1uzKu8mEx”,
“name”: “Telegram account”
}
}
},
{
“parameters”: {},
“type”: “@n8n/n8n-nodes-langchain.toolThink”,
“typeVersion”: 1,
“position”: [
-860,
60
],
“id”: “2a4f909a-5830-48c2-a733-09ed6db5d8fd”,
“name”: “Think”
},
{
“parameters”: {
“calendar”: {
“__rl”: true,
“value”: “[email protected]”,
“mode”: “list”,
“cachedResultName”: “[email protected]”
},
“additionalFields”: {}
},
“type”: “n8n-nodes-base.googleCalendarTool”,
“typeVersion”: 1.3,
“position”: [
-740,
60
],
“id”: “600944ba-c439-47a5-9ebf-9eeeb2dad8ee”,
“name”: “Create”,
“credentials”: {
“googleCalendarOAuth2Api”: {
“id”: “ZGmxrhT9WhuigPVz”,
“name”: “Google Calendar account 2”
}
}
},
{
“parameters”: {
“operation”: “getAll”,
“calendar”: {
“__rl”: true,
“value”: “[email protected]”,
“mode”: “list”,
“cachedResultName”: “[email protected]”
},
“options”: {}
},
“type”: “n8n-nodes-base.googleCalendarTool”,
“typeVersion”: 1.3,
“position”: [
-620,
60
],
“id”: “cd1cbcb2-02c5-4ae0-9083-704f427de7ae”,
“name”: “Review”,
“credentials”: {
“googleCalendarOAuth2Api”: {
“id”: “ZGmxrhT9WhuigPVz”,
“name”: “Google Calendar account 2”
}
}
},
{
“parameters”: {
“sessionIdType”: “customKey”,
“sessionKey”: “={{ $(‘Telegram Trigger’).item.json.message.chat.id }}”
},
“type”: “@n8n/n8n-nodes-langchain.memoryPostgresChat”,
“typeVersion”: 1.3,
“position”: [
-980,
60
],
“id”: “e55c2216-64bb-4501-8abb-9350fb934afd”,
“name”: “Postgres Chat Memory”,
“credentials”: {
“postgres”: {
“id”: “53lWYwT8vBIUiVT7”,
“name”: “Postgres account”
}
}
},
{
“parameters”: {
“mode”: “retrieve-as-tool”,
“toolName”: “KnowledgeDatatbase”,
“toolDescription”: “Use this to access proprietary knowledge about marketing, sales and business operations as well as information about my communication style.”,
“tableName”: {
“__rl”: true,
“value”: “documents”,
“mode”: “list”,
“cachedResultName”: “documents”
},
“options”: {}
},
“type”: “@n8n/n8n-nodes-langchain.vectorStoreSupabase”,
“typeVersion”: 1.1,
“position”: [
-500,
62.5
],
“id”: “4f472d00-9152-479e-a0a0-d5f9acaad8ff”,
“name”: “Supabase Vector Store”,
“credentials”: {
“supabaseApi”: {
“id”: “PDCr4QjjrXVlTPmd”,
“name”: “Supabase account 2”
}
}
},
{
“parameters”: {
“options”: {}
},
“type”: “@n8n/n8n-nodes-langchain.embeddingsOpenAi”,
“typeVersion”: 1.2,
“position”: [
-412,
260
],
“id”: “df5b95ad-2274-404f-ae75-5d8116d4bc02”,
“name”: “Embeddings OpenAI1”,
“credentials”: {
“openAiApi”: {
“id”: “DQ2g3lYveHVelyQH”,
“name”: “OpenAi account”
}
}
}
],
“connections”: {
“Telegram Trigger”: {
“main”: [
[
{
“node”: “AI Agent”,
“type”: “main”,
“index”: 0
}
]
]
},
“OpenAI Chat Model”: {
“ai_languageModel”: [
[
{
“node”: “AI Agent”,
“type”: “ai_languageModel”,
“index”: 0
}
]
]
},
“AI Agent”: {
“main”: [
[
{
“node”: “Telegram”,
“type”: “main”,
“index”: 0
}
]
]
},
“Think”: {
“ai_tool”: [
[
{
“node”: “AI Agent”,
“type”: “ai_tool”,
“index”: 0
}
]
]
},
“Create”: {
“ai_tool”: [
[
{
“node”: “AI Agent”,
“type”: “ai_tool”,
“index”: 0
}
]
]
},
“Review”: {
“ai_tool”: [
[
{
“node”: “AI Agent”,
“type”: “ai_tool”,
“index”: 0
}
]
]
},
“Postgres Chat Memory”: {
“ai_memory”: [
[
{
“node”: “AI Agent”,
“type”: “ai_memory”,
“index”: 0
}
]
]
},
“Supabase Vector Store”: {
“ai_tool”: [
[
{
“node”: “AI Agent”,
“type”: “ai_tool”,
“index”: 0
}
]
]
},
“Embeddings OpenAI1”: {
“ai_embedding”: [
[
{
“node”: “Supabase Vector Store”,
“type”: “ai_embedding”,
“index”: 0
}
]
]
}
},
“pinData”: {},
“meta”: {
“templateCredsSetupCompleted”: true,
“instanceId”: “aa95d60ce93447a03a5861f524d89e9ad8567e4274d8648f5860f706cd4e4191”
}
}
