Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "PR Merged QA Notify",
  "nodes": [
    {
      "parameters": {
        "content": "Automated workflow: PR Merged QA Notify",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "61da6a3d-ed28-4145-ad22-3a458684706e",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "pr-merged-qa-notify"
      },
      "id": "a5e13a39-aede-46c1-983d-b1308aa2af8e",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "528f58ea-f2fb-4535-9276-4a3fc9b22234",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "embed-english-v3.0",
        "options": {}
      },
      "id": "865827a0-826d-42c2-aa29-d671856ac7a5",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "pineconeIndex": {
          "__rl": true,
          "value": "pr_merged_qa_notify",
          "mode": "list",
          "cachedResultName": "pr_merged_qa_notify"
        }
      },
      "id": "85947f4a-c12f-4762-adcf-14803b295ec7",
      "name": "Pinecone Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
   ...

Output:
The node 'Chat Model' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.

Fix data type conversion in 'Chat Model'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Missing Credentials

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Price Update Google Sheet",
  "nodes": [
    {
      "parameters": {
        "content": "Automated workflow: Price Update Google Sheet",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "f3d6c335-fb6d-4c4a-8ac0-ccb129e29942",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "price-update-google-sheet"
      },
      "id": "f94f069c-11c3-4281-8363-6143ab7d8337",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "be6adfed-ae72-4bf6-ab77-932134c3c357",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "embed-english-v3.0",
        "options": {}
      },
      "id": "34dd45c7-5971-4417-922e-861b45772f9e",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "price_update_google_sheet"
      },
      "id": "d9a146d9-c5ff-42b3-a92f-65385c6cb8c4",
      "name": "Weaviate Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreWeaviate",
      "typeVersion": 1,
      "position": [
        270,
        0
      ]
    },
    {
      "parameters": {
        "indexName": "price_update_google_sheet"
      },
      "id": "7e074789-1e7...

Output:
The node 'Weaviate Insert' (type: @n8n/n8n-nodes-langchain.vectorStoreWeaviate) requires credentials but the 'credentials' configuration is missing.

**Root Cause**: The credentials object was not defined for this node.

**Solution**: Add the credentials configuration back to the node:
```json
"credentials": {
  "weaviateApi": {
    "id": "WEAVIATE_API",
    "name": "Weaviate account"
  }
}
```

**Best Practice**: Always verify credentials are properly configured before deploying workflows. Use n8n's credential management system to store sensitive data securely.

Add credentials configuration to the 'Weaviate Insert' node.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Rate Limiting Risk

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Record Crypto Prices",
  "nodes": [
    {
      "parameters": {
        "content": "Placeholder for Record Crypto Prices",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "33fd92b4-df59-448f-995b-42c96db9ab1d",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "record-crypto-prices"
      },
      "id": "979c1efe-0dfc-4ed9-9490-d7fb951553bd",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "8ed3bce0-7f2c-4675-9f9f-8e15834d4b09",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "embed-english-v3.0",
        "options": {}
      },
      "id": "8cecb33f-8415-449f-ad0e-0ffbf5c89806",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "record_crypto_prices"
      },
      "id": "0df6f3cb-994a-40cf-bb8e-0f656791676b",
      "name": "Supabase Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "credentials": {
        "supabaseApi": {
          "id": "SUPABASE_API",
          "name": "Supabase account"
        }
      }
    },...

Output:
This workflow may encounter rate limiting issues when processing large batches of data.

**Common Rate Limit Errors**:
- HTTP 429 Too Many Requests
- HTTP 503 Service Unavailable
- API-specific rate limit messages

**Root Cause**: The workflow makes too many API requests in a short time period without delays.

**Solutions**:

1. **Add Wait Nodes**: Insert a Wait node between API calls
```json
{
  "parameters": {"amount": 1, "unit": "seconds"},
  "name": "Rate Limit Delay",
  "type": "n8n-nodes-base.wait"
}
```

2. **Enable Retry on Fail**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 5000
```

3. **Use Batch Processing**: Split items into smaller batches with delays

4. **Implement Exponential Backoff**: Increase wait times with each retry

**Best Practice**: Always check API documentation for rate limits and implement appropriate throttling.

Add rate limiting protection with Wait nodes and retry logic.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Syntax Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Return Ticket Assignment:
  "nodes": [
    {
      "parameters": {
        "content": "Automated workflow: Return Ticket Assignment",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "cbf21ee8-16ca-407f-a884-b0526e4a2eb1",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "return-ticket-assignment"
      },
      "id": "7c5bb0f6-8671-4667-836c-1500b9ce84fc",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "0de0f19b-17ba-486a-a671-12112ba4de71",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "embed-english-v3.0",
        "options": {}
      },
      "id": "ab8bfdd4-5f61-41a9-bed3-ffdf8f5d5db1",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "return_ticket_assignment"
      },
      "id": "368b46e7-74fe-416b-9777-16cf44229b82",
      "name": "Supabase Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "credentials": {
        "supabaseApi": {
          "id": "SUPABASE_API",
          "name": "Supabase account"
     ...

Output: The JSON contains an unclosed string. All string values must be enclosed in double quotes.

Add the missing closing quote to complete the string.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Syntax Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "RSS Headlines Slack",
  "nodes": [
    {
      "parameters": {
        "content": "Automated workflow: RSS Headlines Slack",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "eef04ed8-9911-437e-a4de-a97bb4008584",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "rss-headlines-slack"
      },
      "id": "9a8d1358-96d4-4234-a729-4e0e4ced17f3",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "b65c9914-f17c-40e3-b297-4829b6ca48c0",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "embed-english-v3.0",
        "options": {}
      },
      "id": "794ba230-95a3-4309-ab88-e048833c8f32",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "pineconeIndex": {
          "__rl": true,
          "value": "rss_headlines_slack",
          "mode": "list",
          "cachedResultName": "rss_headlines_slack"
        }
      },
      "id": "121535eb-291a-43da-beef-22fb7b8e61e2",
      "name": "Pinecone Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
   ...

Output: The JSON is invalid because it is missing a closing brace '}' at the end of the file. Add the missing '}' to close the workflow object.

Add a closing brace '}' at the end of the JSON.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Server Health Grafana",
  "nodes": [
    {
      "parameters": {
        "content": "Automated workflow: Server Health Grafana",
        "height": 530,
        "width": 1100,
        "color": 5,
        "_injected_number_field": "not_a_number"
      },
      "id": "d2ba1e2d-bcbc-45e4-bd37-73668fce5802",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "server-health-grafana"
      },
      "id": "eb7fca76-66e2-4fa1-ab00-09b4c0817961",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "7db01be8-61d6-4c89-9800-db7b62eb7fcf",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "embed-english-v3.0",
        "options": {}
      },
      "id": "66a0f30e-32ee-4ef3-823c-82b4a1af354c",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "server_health_grafana"
      },
      "id": "6ea57ca4-3426-4820-a293-78565186c35e",
      "name": "Weaviate Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreWeaviate",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "credentials": {
        "weaviateApi": {
          "id": "WEAVIATE_API",
   ...

Output:
The node 'Sticky Note' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.

Fix data type conversion in 'Sticky Note'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Timeout Configuration

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Starred Slack to Notion",
  "nodes": [
    {
      "parameters": {
        "content": "Automated workflow: Starred Slack to Notion",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "3394fb98-3259-414f-bc1e-a478f9bb48ce",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "starred-slack-to-notion"
      },
      "id": "634c2549-c8a7-4ed6-9f8f-286ac52e728e",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "496b5b4a-59fb-48d9-834c-8e43123d4f40",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "embed-english-v3.0",
        "options": {}
      },
      "id": "86d40b9f-1b53-4751-a02f-6fc7cda4543c",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "starred_slack_to_notion"
      },
      "id": "d83c9acd-dd15-4965-b024-51acdea5d1be",
      "name": "Weaviate Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreWeaviate",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "credentials": {
        "weaviateApi": {
          "id": "WEAVIATE_API",
          "name": "Weaviate account"
        ...

Output:
This workflow may experience timeout issues with long-running API requests.

**Symptoms**:
- Execution hangs indefinitely
- Connection timeout errors
- ETIMEDOUT or ESOCKETTIMEDOUT errors

**Root Cause**: No timeout configured for HTTP requests, or external services are slow.

**Solutions**:

1. **Set Appropriate Timeouts**:
```json
"options": {
  "timeout": 30000  // 30 seconds
}
```

2. **Add Error Handling**:
- Use Error Trigger node to catch timeout errors
- Implement fallback logic for failed requests

3. **Use Async Patterns**:
- For long operations, use webhook callbacks
- Implement polling patterns instead of waiting

4. **Configure Node Settings**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 2000,
"continueOnFail": true
```

**Best Practice**: Set reasonable timeouts (10-30 seconds) and always have error handling for external API calls.

Configure appropriate timeouts and error handling for HTTP requests.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Rate Limiting Risk

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Survey Auto Analyze",
  "nodes": [
    {
      "parameters": {
        "content": "Automated workflow: Survey Auto Analyze",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "e57a6111-23c7-46fc-8321-8cb81c12e0ff",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "survey-auto-analyze"
      },
      "id": "69582a00-cb89-4618-9181-ed5c900b5d37",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "38c659ff-d227-436b-ace0-e8f19d04be21",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "text-embedding-3-small",
        "options": {}
      },
      "id": "7e5e5bb2-b8ac-410a-8daa-41d994652f61",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "pineconeIndex": {
          "__rl": true,
          "value": "survey_auto_analyze",
          "mode": "list",
          "cachedResultName": "survey_auto_analyze"
        }
      },
      "id": "01a6fea8-0a4f-4a2b-941c-95f1fd7c7f87",
      "name": "Pinecone Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],...

Output:
This workflow may encounter rate limiting issues when processing large batches of data.

**Common Rate Limit Errors**:
- HTTP 429 Too Many Requests
- HTTP 503 Service Unavailable
- API-specific rate limit messages

**Root Cause**: The workflow makes too many API requests in a short time period without delays.

**Solutions**:

1. **Add Wait Nodes**: Insert a Wait node between API calls
```json
{
  "parameters": {"amount": 1, "unit": "seconds"},
  "name": "Rate Limit Delay",
  "type": "n8n-nodes-base.wait"
}
```

2. **Enable Retry on Fail**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 5000
```

3. **Use Batch Processing**: Split items into smaller batches with delays

4. **Implement Exponential Backoff**: Increase wait times with each retry

**Best Practice**: Always check API documentation for rate limits and implement appropriate throttling.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Toggl Daily Report",
  "nodes": [
    {
      "parameters": {
        "content": "Automated workflow: Toggl Daily Report",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "90116b46-a456-448a-9dda-333b3688f86c",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "toggl-daily-report"
      },
      "id": "3fbc7512-72c5-46c4-bd02-573c27d029f1",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "e5106852-2d61-4bdd-bbfb-53ca2517555d",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "embed-english-v3.0",
        "options": {}
      },
      "id": "1118d7ea-3e7d-411f-85e8-ad0de51c3e88",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "pineconeIndex": {
          "__rl": true,
          "value": "toggl_daily_report",
          "mode": "list",
          "cachedResultName": "toggl_daily_report"
        }
      },
      "id": "7b34c0e1-07d7-4488-b794-7d394b5fab7b",
      "name": "Pinecone Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "c...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.

Add validation for empty or null input data.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Missing Credentials

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Unsplash to Pinterest",
  "nodes": [
    {
      "parameters": {
        "content": "Automated workflow: Unsplash to Pinterest",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "8da48de7-ef4d-4d78-8c0e-3c6b57ef3b9a",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "unsplash-to-pinterest"
      },
      "id": "672c0eab-878f-484d-a072-9482935437c4",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "87553792-b816-44e2-ac2f-64d0f9a5adf5",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "embed-english-v3.0",
        "options": {}
      },
      "id": "d8a5b9d0-b59f-49d2-9b1c-99149dd6d71b",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "unsplash_to_pinterest"
      },
      "id": "6f194f04-7764-4a60-a36a-027d5c1410f7",
      "name": "Supabase Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "credentials": {
        "supabaseApi": {
          "id": "SUPABASE_API",
          "name": "Supabase account"
        }
      ...

Output:
The node 'Slack Alert' (type: n8n-nodes-base.slack) requires credentials but the 'credentials' configuration is missing.

**Root Cause**: The credentials object was not defined for this node.

**Solution**: Add the credentials configuration back to the node:
```json
"credentials": {
  "slackApi": {
    "id": "SLACK_API",
    "name": "Slack"
  }
}
```

**Best Practice**: Always verify credentials are properly configured before deploying workflows. Use n8n's credential management system to store sensitive data securely.

Add credentials configuration to the 'Slack Alert' node.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Voice Task to Notion",
  "nodes": [
    {
      "parameters": {
        "content": "Automated workflow: Voice Task to Notion",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "788c7113-8566-49c8-b7af-3313f57a479c",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "voice-task-to-notion"
      },
      "id": "aaf99a8a-1412-455a-97ed-f853121f366f",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "917142f0-7738-4fde-b862-b763463248a6",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "text-embedding-3-small",
        "options": {}
      },
      "id": "b17227b4-2631-41f6-bc3b-45ca977de46a",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "voice_task_to_notion"
      },
      "id": "7f0fa79f-e276-4a66-8120-66e94ba4c045",
      "name": "Weaviate Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreWeaviate",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "credentials": {
        "weaviateApi": {
          "id": "WEAVIATE_API",
          "name": "Weaviate account"
        }
      ...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Timeout Configuration

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Weekly Notes Backup",
  "nodes": [
    {
      "parameters": {
        "content": "Automated workflow: Weekly Notes Backup",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "09f96970-f5ea-401a-bf0b-0035b1ae502a",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "weekly-notes-backup"
      },
      "id": "0cf773d3-bb5a-467b-8059-746735a95815",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "34029e24-83b2-4e0d-afe4-52510a3c20e4",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "embed-english-v3.0",
        "options": {}
      },
      "id": "0318220f-be7c-43ff-8b23-01bc841d6160",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "weekly_notes_backup"
      },
      "id": "b6c46a40-013a-45fc-b942-614ea6a9077b",
      "name": "Weaviate Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreWeaviate",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "credentials": {
        "weaviateApi": {
          "id": "WEAVIATE_API",
          "name": "Weaviate account"
        }
      }
    },...

Output:
This workflow may experience timeout issues with long-running API requests.

**Symptoms**:
- Execution hangs indefinitely
- Connection timeout errors
- ETIMEDOUT or ESOCKETTIMEDOUT errors

**Root Cause**: No timeout configured for HTTP requests, or external services are slow.

**Solutions**:

1. **Set Appropriate Timeouts**:
```json
"options": {
  "timeout": 30000  // 30 seconds
}
```

2. **Add Error Handling**:
- Use Error Trigger node to catch timeout errors
- Implement fallback logic for failed requests

3. **Use Async Patterns**:
- For long operations, use webhook callbacks
- Implement polling patterns instead of waiting

4. **Configure Node Settings**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 2000,
"continueOnFail": true
```

**Best Practice**: Set reasonable timeouts (10-30 seconds) and always have error handling for external API calls.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Missing Credentials

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Woo Order Mailchimp",
  "nodes": [
    {
      "parameters": {
        "content": "Automated workflow: Woo Order Mailchimp",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "0dd507e4-f32b-4c4c-85d9-26316c63c0e0",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "woo-order-mailchimp"
      },
      "id": "42aa0b71-1c9f-48d7-b339-94919de26da1",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "38bd53d5-c599-45cb-bd28-f52fe513a687",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "embed-english-v3.0",
        "options": {}
      },
      "id": "fbb0666b-b845-4490-ad86-25713c97a122",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "woo_order_mailchimp"
      },
      "id": "d85253d5-b3b8-452b-8153-996f7b6c9bca",
      "name": "Weaviate Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreWeaviate",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "credentials": {
        "weaviateApi": {
          "id": "WEAVIATE_API",
          "name": "Weaviate account"
        }
      }
    },...

Output:
The node 'Chat Model' (type: @n8n/n8n-nodes-langchain.lmChatOpenAi) requires credentials but the 'credentials' configuration is missing.

**Root Cause**: The credentials object was not defined for this node.

**Solution**: Add the credentials configuration back to the node:
```json
"credentials": {
  "openAiApi": {
    "id": "OPENAI_API",
    "name": "OpenAI"
  }
}
```

**Best Practice**: Always verify credentials are properly configured before deploying workflows. Use n8n's credential management system to store sensitive data securely.

Add credentials configuration to the 'Chat Model' node.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Missing Credentials

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Zoom Attendance Log",
  "nodes": [
    {
      "parameters": {
        "content": "Automated workflow: Zoom Attendance Log",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "30425599-20bc-4cab-84fb-a97a7d936dd8",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "zoom-attendance-log"
      },
      "id": "40e28ff7-25fe-4260-9dff-fc7b0fb83b9e",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "0ebd915f-62ad-4a37-ae47-94a492b82d74",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "text-embedding-3-small",
        "options": {}
      },
      "id": "97982daf-72b3-4c42-aea3-e33642422cfd",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "zoom_attendance_log"
      },
      "id": "092e9417-d39a-407f-8c39-2bc28184c6ea",
      "name": "Supabase Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "credentials": {
        "supabaseApi": {
          "id": "SUPABASE_API",
          "name": "Supabase account"
        }
      }
  ...

Output:
The node 'Supabase Query' (type: @n8n/n8n-nodes-langchain.vectorStoreSupabase) requires credentials but the 'credentials' configuration is missing.

**Root Cause**: The credentials object was not defined for this node.

**Solution**: Add the credentials configuration back to the node:
```json
"credentials": {
  "supabaseApi": {
    "id": "SUPABASE_API",
    "name": "Supabase account"
  }
}
```

**Best Practice**: Always verify credentials are properly configured before deploying workflows. Use n8n's credential management system to store sensitive data securely.

Add credentials configuration to the 'Supabase Query' node.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Morning Briefing Email",
  "nodes": [
    {
      "parameters": {
        "content": "Automated workflow: Morning Briefing Email",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "290fb569-25f2-4464-8d96-bab3c4cb3276",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "morning-briefing-email"
      },
      "id": "13727821-7b64-46b6-96bd-7b97dd43d06e",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "b0725ca4-2727-4201-a9bd-cb219ff1508f",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "embed-english-v3.0",
        "options": {}
      },
      "id": "af97f001-e5ea-49fb-ac6b-b2d30730c3e8",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "morning_briefing_email"
      },
      "id": "63c51bdb-fbd9-43a9-bacf-f5c6d39aedb3",
      "name": "Supabase Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "credentials": {
        "supabaseApi": {
          "id": "SUPABASE_API",
          "name": "Supabase account"
        }
  ...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Airbnb Guest Assistant",
  "nodes": [
    {
      "parameters": {
        "options": {}
      },
      "id": "5c8d2013-4bb8-476b-84a3-4b2ddea3e569",
      "name": "OpenAI Chat Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "typeVersion": 1,
      "position": [
        640,
        360
      ],
      "credentials": {
        "openAiApi": {
          "id": "PHFKmuDYWAWJyAHe",
          "name": "OpenAi account"
        }
      }
    },
    {
      "parameters": {
        "options": {},
        "_injected_number_field": "not_a_number"
      },
      "id": "042a2eee-5990-4018-88eb-de3b2955897d",
      "name": "OpenAI Chat Model1",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "typeVersion": 1,
      "position": [
        1660,
        360
      ],
      "credentials": {
        "openAiApi": {
          "id": "PHFKmuDYWAWJyAHe",
          "name": "OpenAi account"
        }
      }
    },
    {
      "parameters": {
        "resource": "folder",
        "driveId": {
          "__rl": true,
          "mode": "list",
          "value": "My Drive"
        },
        "folderId": {
          "__rl": true,
          "mode": "list",
          "value": "root",
          "cachedResultName": "/ (Root folder)"
        },
        "options": {}
      },
      "id": "a96ced6d-426f-48aa-b174-eb3a64332671",
      "name": "Google Drive",
      "type": "n8n-nodes-base.googleDrive",
      "typeVersion": 3,
      "position": [
        -160,
        780
      ],
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "vBDzrDMXMNFgtVf9",
          "name": "Google Drive account"
        }
      }
    },
    {
      "parameters": {
        "operation": "download",
        "fileId": {
          "__rl": true,
          "value": "https://drive.google.com/file/d/1Ce2evOt4kIxYgCIIWOTKjDYw_TEwwhtq/view?usp=drive_link",
          "mode": "url"
        },
        "options": {
          "binaryPropertyName": "data",
          "googleFileCo...

Output:
The node 'OpenAI Chat Model1' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.

Fix data type conversion in 'OpenAI Chat Model1'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Expression Reference Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "HOA Fee Analyzer",
  "nodes": [
    {
      "parameters": {
        "content": "## HOA Fee Analyzer",
        "height": 520,
        "width": 1100
      },
      "id": "4afac323-5876-45a8-bccd-7dcbeb0d05ae",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "hoa_fee_analyzer"
      },
      "id": "170dc7af-c8e4-4420-9a4e-80c0a62ff3df",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "bbf26500-857a-47ce-9dab-5a1bbc3a0029",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "dc4d3b33-40b8-4414-81e6-ca74e48ad493",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsHuggingFace",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "huggingFaceApi": {
          "id": "HF_API",
          "name": "HuggingFace"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "hoa_fee_analyzer"
      },
      "id": "e96269e1-5bf2-4422-afc4-b33472a46cf2",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreWeaviate",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "weaviateApi": {
          "id": "WEAVIATE_API",
          "name": "Weaviate account"
        }
      }
    },
    {
      "parameters": {
        "indexName": "={{ $json.deeply.nested.undefined.path }}"
      },
      "id": "02a2e...

Output:
In node 'Query', the parameter 'indexName' contains an expression that references undefined data.

**Faulty Expression**: `={{ $json.deeply.nested.undefined.path }}`
**Original Value**: `hoa_fee_analyzer`

**Root Cause**: The expression references a field, node, or variable that doesn't exist in the data flow.

**Debugging Steps**:
1. Check the output of previous nodes to verify available fields
2. Use the Expression Editor to test expressions interactively
3. Add a Set node before this one to inspect available data
4. Use optional chaining for potentially undefined fields: `$json.field?.subfield`

**Best Practice**: Always validate data availability before using expressions.

Fix the expression in 'Query' parameter 'indexName'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Missing Credentials

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Lead Scoring with MLS Data",
  "nodes": [
    {
      "parameters": {
        "content": "## Lead Scoring with MLS Data",
        "height": 520,
        "width": 1100
      },
      "id": "b3e798e0-f54d-43bf-9115-803ed5440da0",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "lead_scoring_with_mls_data"
      },
      "id": "91731293-a22d-4e7f-a326-e4370193b2ec",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "c66ae7bb-3ce4-49f9-aa05-74097ff017d1",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "dd94a3be-6fef-4337-a815-2ea920012b1e",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "lead_scoring_with_mls_data"
      },
      "id": "11d992bd-c645-440a-b946-c8603d2e52a5",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
      "typeVersion": 1,
      "position": [
        300,
        0
      ]
    },
    {
      "parameters": {
        "indexName": "lead_scoring_with_mls_data"
      },
      "id": "d6d1a18d-3612-438e-8509-1dd7c6e2f6a4",
      "name": "Query",
      "type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
   ...

Output:
The node 'Insert' (type: @n8n/n8n-nodes-langchain.vectorStorePinecone) requires credentials but the 'credentials' configuration is missing.

**Root Cause**: The credentials object was not defined for this node.

**Solution**: Add the credentials configuration back to the node:
```json
"credentials": {
  "pineconeApi": {
    "id": "PINECONE_API",
    "name": "Pinecone account"
  }
}
```

**Best Practice**: Always verify credentials are properly configured before deploying workflows. Use n8n's credential management system to store sensitive data securely.

Add credentials configuration to the 'Insert' node.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Mortgage Rate Alert",
  "nodes": [
    {
      "parameters": {
        "content": "## Mortgage Rate Alert",
        "height": 520,
        "width": 1100
      },
      "id": "e7f69fa7-a800-43bc-b113-061d37523f4d",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "mortgage_rate_alert"
      },
      "id": "3b8e8fe5-3986-44f2-9306-790e2ae3119f",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "dc561d99-0499-4c81-a7e5-e59ced66a2d5",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "e867ce4b-bebb-484e-a69c-4e287cc7c6bd",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "mortgage_rate_alert"
      },
      "id": "2e5ebbc6-b41e-403b-a20f-32335c185615",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "pineconeApi": {
          "id": "PINECONE_API",
          "name": "Pinecone account"
        }
      }
    },
    {
      "parameters": {
        "indexName": "mortgage_rate_alert"
      },
      "id": "1bba824c-3bf0-478e-9a44-80...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Neighborhood Safety Insights",
  "nodes": [
    {
      "parameters": {
        "content": "## Neighborhood Safety Insights",
        "height": 520,
        "width": 1100
      },
      "id": "6d429e9f-4cf4-413c-992a-934cb55c8e16",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "neighborhood_safety_insights"
      },
      "id": "8ef7fb3d-575d-4892-8afc-54c302c80b3d",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "5b0b3f59-3490-48b0-bfe2-8327f49e9916",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "bc814284-3660-429f-afc4-32ce5c43cb7d",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsHuggingFace",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "huggingFaceApi": {
          "id": "HF_API",
          "name": "HuggingFace"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "neighborhood_safety_insights",
        "_injected_number_field": "not_a_number"
      },
      "id": "fa876356-58fc-4c4d-9eaf-d375d986a76d",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreRedis",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "redisApi": {
          "id": "REDIS_API",
          "name": "Redis account"
        }
      }
    },
    {
      "parameters": {
      ...

Output:
The node 'Insert' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Disconnected Node

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Open House Reminder",
  "nodes": [
    {
      "parameters": {
        "content": "## Open House Reminder",
        "height": 520,
        "width": 1100
      },
      "id": "f924cb54-ba11-4cb7-8f29-71b0baca8062",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "open_house_reminder"
      },
      "id": "4f2c3ae0-9c02-4921-9127-b8be22f97c79",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "f8085896-3869-4b45-81a1-fb35887c6582",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "c3060c67-0183-4888-bb93-afdc90167a4b",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "open_house_reminder"
      },
      "id": "33aa151a-e859-41bb-beaf-9ba3d6b372f7",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "supabaseApi": {
          "id": "SUPABASE_API",
          "name": "Supabase account"
        }
      }
    },
    {
      "parameters": {
        "indexName": "open_house_reminder"
      },
      "id": "4831a728-1c61-4914-95ea-3d...

Output:
The workflow has a broken data flow. The node 'Chat' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for 'Chat'.

**Impact**: Data from 'Chat' will not flow to any downstream nodes, effectively stopping the workflow at this point.

**Solution**:
1. Open the workflow in the n8n editor
2. Draw a connection from 'Chat' to the next node in the flow
3. Verify the connection appears in the connections object

**Programmatic Fix**: Add the connection back to the workflow JSON:
```json
"connections": {
  "Chat": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Missing Credentials

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Property Description Generator",
  "nodes": [
    {
      "parameters": {
        "content": "## Property Description Generator",
        "height": 520,
        "width": 1100
      },
      "id": "de9e99d7-55a7-4ab5-be65-a76562417c9e",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "property_description_generator"
      },
      "id": "95eaae13-d097-4ee7-850c-dde459bb204a",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "7fc75187-cc83-48d5-a7e9-dae38978b806",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "9290b626-0263-42be-b96f-5a577b128620",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsHuggingFace",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "huggingFaceApi": {
          "id": "HF_API",
          "name": "HuggingFace"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "property_description_generator"
      },
      "id": "1e94decf-e2a7-4e6f-b319-6ff1a44eef83",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "supabaseApi": {
          "id": "SUPABASE_API",
          "name": "Supabase account"
        }
      }
    },
    {
      "parameters": {
        "indexName": "property_descr...

Output:
The node 'Sheet' (type: n8n-nodes-base.googleSheets) requires credentials but the 'credentials' configuration is missing.

**Root Cause**: The credentials object was not defined for this node.

**Solution**: Add the credentials configuration back to the node:
```json
"credentials": {
  "googleSheetsOAuth2Api": {
    "id": "SHEETS_API",
    "name": "Sheets"
  }
}
```

**Best Practice**: Always verify credentials are properly configured before deploying workflows. Use n8n's credential management system to store sensitive data securely.

Add credentials configuration to the 'Sheet' node.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Disconnected Node

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Real Estate Market Trend Report",
  "nodes": [
    {
      "parameters": {
        "content": "## Real Estate Market Trend Report",
        "height": 520,
        "width": 1100
      },
      "id": "e5cd3533-af52-45ca-8e52-6086b7d244ea",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "real_estate_market_trend_report"
      },
      "id": "0501dc92-8312-4244-a68e-0d6c798f9278",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "1570ba94-787d-4f3b-b5b5-e614db90bc8d",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "f4bd6310-ca6e-46c6-bc83-7e15c0588619",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "real_estate_market_trend_report"
      },
      "id": "d69bb710-b962-4b60-98cf-efefae8ed524",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreWeaviate",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "weaviateApi": {
          "id": "WEAVIATE_API",
          "name": "Weaviate account"
        }
      }
    },
    {
      "parameters": {
        "indexName": "real_estate_market_tr...

Output:
The workflow has a broken data flow. The node 'Embeddings' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for 'Embeddings'.

**Impact**: Data from 'Embeddings' will not flow to any downstream nodes, effectively stopping the workflow at this point.

**Solution**:
1. Open the workflow in the n8n editor
2. Draw a connection from 'Embeddings' to the next node in the flow
3. Verify the connection appears in the connections object

**Programmatic Fix**: Add the connection back to the workflow JSON:
```json
"connections": {
  "Embeddings": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Missing Credentials

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Rental Price Estimator",
  "nodes": [
    {
      "parameters": {
        "content": "## Rental Price Estimator",
        "height": 520,
        "width": 1100
      },
      "id": "522a1c32-482c-4ac3-83bf-a8ae38f035e9",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "rental_price_estimator"
      },
      "id": "8b1409f9-abae-4c17-8049-ef854d2875b4",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "75e1adde-fad5-43b1-aff6-61a6f37dd10c",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "cfaa3081-4cb7-412b-83c0-8dcc28a25224",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "rental_price_estimator"
      },
      "id": "50813f68-ed6d-46b4-81bd-c44b22b4b378",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "supabaseApi": {
          "id": "SUPABASE_API",
          "name": "Supabase account"
        }
      }
    },
    {
      "parameters": {
        "indexName": "rental_price_estimator"
      },
      "id": "654d535f-97...

Output:
The node 'Query' (type: @n8n/n8n-nodes-langchain.vectorStoreSupabase) requires credentials but the 'credentials' configuration is missing.

**Root Cause**: The credentials object was not defined for this node.

**Solution**: Add the credentials configuration back to the node:
```json
"credentials": {
  "supabaseApi": {
    "id": "SUPABASE_API",
    "name": "Supabase account"
  }
}
```

**Best Practice**: Always verify credentials are properly configured before deploying workflows. Use n8n's credential management system to store sensitive data securely.

Add credentials configuration to the 'Query' node.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Tenant Screening Summary",
  "nodes": [
    {
      "parameters": {
        "content": "## Tenant Screening Summary",
        "height": 520,
        "width": 1100
      },
      "id": "3b33eebf-9222-4bd3-b76f-184d65d84dab",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "tenant_screening_summary"
      },
      "id": "18fe7bca-e67c-47c4-b3ff-1026e4ea6dd2",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "49839ad9-502f-469b-a079-ef2ca8f2f0dd",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default",
        "_injected_number_field": "not_a_number"
      },
      "id": "647d7561-8466-4208-8895-e9fcb704ac2a",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "tenant_screening_summary"
      },
      "id": "e490ed00-02f9-425c-b529-3b5a3083255e",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "pineconeApi": {
          "id": "PINECONE_API",
          "name": "Pinecone account"
        }
      }
    },
    {
      "parameters": {
        "indexName": ...

Output:
The node 'Embeddings' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.

Fix data type conversion in 'Embeddings'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Zoning Regulation Checker",
  "nodes": [
    {
      "parameters": {
        "content": "## Zoning Regulation Checker",
        "height": 520,
        "width": 1100
      },
      "id": "07d635fb-5ea6-40db-8eb3-477a78c63232",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "zoning_regulation_checker"
      },
      "id": "3f13da25-c4d9-47c5-b521-2c2e25635ec3",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "e4a8e3ef-15b9-4e2a-876b-1d29f56cd0fa",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "b40a547d-4b1c-43b3-9820-732c263ce7fd",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "zoning_regulation_checker"
      },
      "id": "d29b865b-9909-4fc4-8785-9a04eb7eee35",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreRedis",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "redisApi": {
          "id": "REDIS_API",
          "name": "Redis account"
        }
      }
    },
    {
      "parameters": {
        "indexName": "zoning_regulation_checker"
      },
      "id": "5ffa1b33...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Timeout Configuration

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Video Automation (images only)",
  "nodes": [
    {
      "parameters": {
        "promptType": "=define",
        "text": "=You are a master at creating short-form viral videos. I want your help in generating historical POV videos, in which the user sees POV-style images of an individual throughout a major breakthrough in science in technology. The channel's name is \"Before it Changed Everything.\"\n\nEach video is 25 seconds long, and contains 5 scenes, 5 seconds each.\n\nEach scene requires one image and one audio voiceover, so the whole story will consist of 5 images and 5 audios. !important\n\nThe entire 25 second video would narrate a short story from that historical era.\n\nThe image prompts have to be such that they help the AI model maintain as much consistency from one image to the next. Since it's a POV video, there are very few details of the person itself that must be maintained aside from arms and feet, and torso and legs if visible.\n\nevery scene should have the POV individual interacting with a new character or setting, so this would also reduce the need for consistency aside from the same historical time period. However, remember to describe each scene with enough references so that each prompt can work individually.\n\nAny visible details of the character (hands feet accessories) must also be referenced in each prompt and described in way that maintains consistency.\n\nFor example, if you're describing the battle of Marathon and your first prompt is about an athenian hoplite surrounded by soldiers\n\nthe next image prompt must also specify that the soldiers are athenian from the battle of marathon\n\nFinally, the script should be such as to give enough details about the event, but not give the actual topic away. The script should always end as - can you guess the discovery - this would be part of the 5th segment, not an addional one\n\nHere are three ideal outputs\n\nScene 1 \u2013 Setting the Type\n\nPOV of a young male apprentice w...

Output:
This workflow may experience timeout issues with long-running API requests.

**Symptoms**:
- Execution hangs indefinitely
- Connection timeout errors
- ETIMEDOUT or ESOCKETTIMEDOUT errors

**Root Cause**: No timeout configured for HTTP requests, or external services are slow.

**Solutions**:

1. **Set Appropriate Timeouts**:
```json
"options": {
  "timeout": 30000  // 30 seconds
}
```

2. **Add Error Handling**:
- Use Error Trigger node to catch timeout errors
- Implement fallback logic for failed requests

3. **Use Async Patterns**:
- For long operations, use webhook callbacks
- Implement polling patterns instead of waiting

4. **Configure Node Settings**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 2000,
"continueOnFail": true
```

**Best Practice**: Set reasonable timeouts (10-30 seconds) and always have error handling for external API calls.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Disconnected Node

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Alert on Instagram Competitor Story",
  "nodes": [
    {
      "parameters": {
        "content": "Placeholder for Alert on Instagram Competitor Story",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "21eb9c4e-1dd8-4912-94c8-ae35a24ccf6a",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "alert-on-instagram-competitor-story"
      },
      "id": "3e99ee3b-2943-4242-9d10-4ae5f7c050c4",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "2ba926bb-eba1-4cf4-b819-263b3727853a",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "text-embedding-3-small",
        "options": {}
      },
      "id": "f71bb5cd-2ff0-4822-8464-9b15aaefa469",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "alert_on_instagram_competitor_story"
      },
      "id": "a39340e4-46ef-4539-a281-1c12638eae78",
      "name": "Supabase Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "credentials": {
        "supabaseApi": {
          "id": "SUPABASE_API...

Output:
The workflow has a broken data flow. The node 'Supabase Query' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for 'Supabase Query'.

**Impact**: Data from 'Supabase Query' will not flow to any downstream nodes, effectively stopping the workflow at this point.

**Solution**:
1. Open the workflow in the n8n editor
2. Draw a connection from 'Supabase Query' to the next node in the flow
3. Verify the connection appears in the connections object

**Programmatic Fix**: Add the connection back to the workflow JSON:
```json
"connections": {
  "Supabase Query": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect 'Supabase Query' to the workflow.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Disconnected Node

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Auto-DM New Twitter Followers",
  "nodes": [
    {
      "parameters": {
        "content": "Placeholder for Auto-DM New Twitter Followers",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "6c8445ba-33d0-4091-bc77-9206a3e8b3be",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "auto-dm-new-twitter-followers"
      },
      "id": "f3af4318-25fb-48b3-afcd-b6626ffa4fc3",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "5d8f131d-4f2e-4689-941a-71971000788e",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "embed-english-v3.0",
        "options": {}
      },
      "id": "c16f0e7d-d77e-4bf0-a9b8-aff545ebac3e",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "pineconeIndex": {
          "__rl": true,
          "value": "auto-dm_new_twitter_followers",
          "mode": "list",
          "cachedResultName": "auto-dm_new_twitter_followers"
        }
      },
      "id": "66aa91bd-6e08-4905-92b6-ab70a0a0fb57",
      "name": "Pinecone Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
      "typeVersion": 1,
      "po...

Output:
The workflow has a broken data flow. The node 'Webhook Trigger' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for 'Webhook Trigger'.

**Impact**: Data from 'Webhook Trigger' will not flow to any downstream nodes, effectively stopping the workflow at this point.

**Solution**:
1. Open the workflow in the n8n editor
2. Draw a connection from 'Webhook Trigger' to the next node in the flow
3. Verify the connection appears in the connections object

**Programmatic Fix**: Add the connection back to the workflow JSON:
```json
"connections": {
  "Webhook Trigger": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect 'Webhook Trigger' to the workflow.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Rate Limiting Risk

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Auto-post Blogs to LinkedIn and Twitter",
  "nodes": [
    {
      "parameters": {
        "content": "Placeholder for Auto-post Blogs to LinkedIn and Twitter",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "f6b52b5b-3751-4c22-a6c1-3e5936fb322a",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "auto-post-blogs-to-linkedin-and-twitter"
      },
      "id": "f5a15148-9af1-409b-a4ef-ad2b0e2e2f06",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "121f362d-ae3a-45c8-894d-12e606dab808",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "text-embedding-3-small",
        "options": {}
      },
      "id": "6a35e11a-dd03-4d95-bcc3-f4f8c85088d5",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "auto-post_blogs_to_linkedin_and_twitter"
      },
      "id": "401ef38d-6acd-41cd-8ce5-3a50b8545789",
      "name": "Supabase Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "credentials": {
        "supabaseApi": {
          "id...

Output:
This workflow may encounter rate limiting issues when processing large batches of data.

**Common Rate Limit Errors**:
- HTTP 429 Too Many Requests
- HTTP 503 Service Unavailable
- API-specific rate limit messages

**Root Cause**: The workflow makes too many API requests in a short time period without delays.

**Solutions**:

1. **Add Wait Nodes**: Insert a Wait node between API calls
```json
{
  "parameters": {"amount": 1, "unit": "seconds"},
  "name": "Rate Limit Delay",
  "type": "n8n-nodes-base.wait"
}
```

2. **Enable Retry on Fail**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 5000
```

3. **Use Batch Processing**: Split items into smaller batches with delays

4. **Implement Exponential Backoff**: Increase wait times with each retry

**Best Practice**: Always check API documentation for rate limits and implement appropriate throttling.

Add rate limiting protection with Wait nodes and retry logic.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Expression Reference Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Auto-reply to TikTok Comments",
  "nodes": [
    {
      "parameters": {
        "content": "Placeholder for Auto-reply to TikTok Comments",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "62a5ff73-812f-4bd3-b69e-19ccb837438b",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "auto-reply-to-tiktok-comments"
      },
      "id": "e2d9a151-59e3-42d2-8108-bfb2b4f530f4",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "57baa51e-87e0-4b4f-90b3-44b5282b3d95",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "embed-english-v3.0",
        "options": {}
      },
      "id": "4c1d12a0-1780-4d26-b17f-59215022b555",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "pineconeIndex": {
          "__rl": true,
          "value": "auto-reply_to_tiktok_comments",
          "mode": "list",
          "cachedResultName": "auto-reply_to_tiktok_comments"
        }
      },
      "id": "be23eb72-bca1-4e6f-8b8f-00b3c76fef40",
      "name": "Pinecone Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
      "typeVersion": 1,
      "po...

Output:
In node 'Append Sheet', the parameter 'operation' contains an expression that references undefined data.

**Faulty Expression**: `={{ $items[999].json.value }}`
**Original Value**: `append`

**Root Cause**: The expression references a field, node, or variable that doesn't exist in the data flow.

**Debugging Steps**:
1. Check the output of previous nodes to verify available fields
2. Use the Expression Editor to test expressions interactively
3. Add a Set node before this one to inspect available data
4. Use optional chaining for potentially undefined fields: `$json.field?.subfield`

**Best Practice**: Always validate data availability before using expressions.

Fix the expression in 'Append Sheet' parameter 'operation'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Timeout Configuration

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Cross-post YouTube Uploads to Facebook",
  "nodes": [
    {
      "parameters": {
        "content": "Placeholder for Cross-post YouTube Uploads to Facebook",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "e227f505-d90e-4cac-b88e-143d55a41313",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "cross-post-youtube-uploads-to-facebook"
      },
      "id": "f2e1b834-b79c-400a-9016-e001ae3a1f37",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "c2ee666f-2b15-4919-ae35-639428a47410",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "text-embedding-3-small",
        "options": {}
      },
      "id": "f7b42d81-8b2e-40ba-a7ce-bcdcee98fb28",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "pineconeIndex": {
          "__rl": true,
          "value": "cross-post_youtube_uploads_to_facebook",
          "mode": "list",
          "cachedResultName": "cross-post_youtube_uploads_to_facebook"
        }
      },
      "id": "e48c8606-0249-495e-b652-bf2973cbf903",
      "name": "Pinecone Insert",
      "type": "@n8n/n8n-nodes-langchain.vector...

Output:
This workflow may experience timeout issues with long-running API requests.

**Symptoms**:
- Execution hangs indefinitely
- Connection timeout errors
- ETIMEDOUT or ESOCKETTIMEDOUT errors

**Root Cause**: No timeout configured for HTTP requests, or external services are slow.

**Solutions**:

1. **Set Appropriate Timeouts**:
```json
"options": {
  "timeout": 30000  // 30 seconds
}
```

2. **Add Error Handling**:
- Use Error Trigger node to catch timeout errors
- Implement fallback logic for failed requests

3. **Use Async Patterns**:
- For long operations, use webhook callbacks
- Implement polling patterns instead of waiting

4. **Configure Node Settings**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 2000,
"continueOnFail": true
```

**Best Practice**: Set reasonable timeouts (10-30 seconds) and always have error handling for external API calls.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Disconnected Node

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Log Twitter Mentions in Notion",
  "nodes": [
    {
      "parameters": {
        "content": "Placeholder for Log Twitter Mentions in Notion",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "9ada02d4-1b9a-4475-ab74-3fec017290b0",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "log-twitter-mentions-in-notion"
      },
      "id": "2a319bca-b315-479c-8cc5-00c3e017a652",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "599dd595-9fa8-40de-982f-1897a35e9ec6",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "embed-english-v3.0",
        "options": {}
      },
      "id": "f9f91a1d-a3fa-41ba-96e8-1a0842ec54ad",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "log_twitter_mentions_in_notion"
      },
      "id": "95a626fd-1907-475a-8297-a088c40f7322",
      "name": "Weaviate Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreWeaviate",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "credentials": {
        "weaviateApi": {
          "id": "WEAVIATE_API",
          "name": "We...

Output:
The workflow has a broken data flow. The node 'Vector Tool' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for 'Vector Tool'.

**Impact**: Data from 'Vector Tool' will not flow to any downstream nodes, effectively stopping the workflow at this point.

**Solution**:
1. Open the workflow in the n8n editor
2. Draw a connection from 'Vector Tool' to the next node in the flow
3. Verify the connection appears in the connections object

**Programmatic Fix**: Add the connection back to the workflow JSON:
```json
"connections": {
  "Vector Tool": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect 'Vector Tool' to the workflow.