This article provides a complete, practical walkthrough of the Manual N8N Automation Triggered n8n agent. It connects HTTP Request, Webhook across approximately 1 node(s). Expect a Intermediate setup in 15-45 minutes. One‑time purchase: €29.

What This Agent Does

This agent orchestrates a reliable automation between HTTP Request, Webhook, handling triggers, data enrichment, and delivery with guardrails for errors and rate limits.

It streamlines multi‑step processes that would otherwise require manual exports, spreadsheet cleanup, and repeated API requests. By centralizing logic in n8n, it reduces context switching, lowers error rates, and ensures consistent results across teams.

Typical outcomes include faster lead handoffs, automated notifications, accurate data synchronization, and better visibility via execution logs and optional Slack/Email alerts.

How It Works

The workflow uses standard n8n building blocks like Webhook or Schedule triggers, HTTP Request for API calls, and control nodes (IF, Merge, Set) to validate inputs, branch on conditions, and format outputs. Retries and timeouts improve resilience, while credentials keep secrets safe.

Third‑Party Integrations

• HTTP Request
• Webhook

Import and Use in n8n

1. Open n8n and create a new workflow or collection.
2. Choose Import from File or Paste JSON.
3. Paste the JSON below, then click Import.
4. Show n8n JSON

   Title:  
   How to Identify Affected Expression Extensions After Upgrading to n8n v1
   
   Meta Description:  
   Learn how to use a helpful n8n v1 workflow to detect affected expression extensions like plus, minus, beginningOf, and endOfMonth in your active workflows. Ensure seamless migration with this utility.
   
   Keywords:  
   n8n, n8n v1 upgrade, workflow migration, n8n helper tool, expression extensions, n8n automation, code node, JavaScript in n8n, n8n API, plus/minus expressions
   
   Third-Party APIs Used:  
   - n8n API (internal to n8n; no external third-party APIs)
   
   Article:
   
   Upgrading to a new major version of any automation tool can bring both improvements and breaking changes. For users of n8n—the powerful open-source workflow automation platform—the transition to version 1.0 introduced useful enhancements, including updates to its expression handling system. However, these changes also meant that some previously valid expressions, particularly those using certain date and math extensions, may now behave differently.
   
   To ease this transition and help developers audit their workflows for compatibility issues, n8n offers a ready-to-use utility workflow: "v1 helper – Find params with affected expressions". This article walks you through what the workflow does and how it can be used to identify nodes in your n8n workflows that are affected by expression extension changes in v1.
   
   Understanding the Issue: Expression Extensions Changed in v1  
   
   In n8n v1, the way expressions like plus, minus, beginningOf, and endOfMonth are evaluated has been updated. This could lead to workflows misbehaving if they were created using n8n v0.x and rely heavily on these expressions within various nodes.
   
   Imagine a scenario where you're using an expression like:
     
     ={{$now.plus(1, 'day')}}
   
   After the upgrade, its behavior may change depending on how the new expression parser processes it. As a result, it's crucial to audit every workflow to ensure these expressions are still doing what they are supposed to do.
   
   What the Helper Workflow Does  
   
   The “v1 helper – Find params with affected expressions” workflow is designed to scan all your active workflows and identify the specific nodes and parameters that use these now-affected expression extensions. It gives you a focused list of places to inspect manually so that you can correct or confirm that everything continues to work as expected.
   
   Let’s break down how the workflow works:
   
   1. Manual Trigger Node  
      The workflow begins with a “Manual Trigger” node titled "When clicking 'Execute Workflow'". This node ensures that the user runs this workflow intentionally, typically during post-upgrade checks.
   
   2. n8n API Node  
      The second node, called “n8n,” uses the n8n API to fetch all active workflows. It is configured with filters to only pull active workflows—exactly the workflows that need verifying post-upgrade.
   
   3. Code Node: The Analyzer  
      The third node, “Find params with affected expressions,” is a JavaScript-based Code node. It contains logic to:
      - Identify if a parameter value is an expression (by checking for the prefix ={{).
      - Check whether the expression contains any of the affected extensions: plus, minus, beginningOf, endOfMonth.
      - Traverse through each node’s parameters recursively and find all matches.
      - Output a list of workflow names, node names, and exact parameter names that match.
   
   4. Sticky Note (Documentation)  
      The workflow also includes a visual "Sticky Note" node that explains its purpose—offering clarity for any collaborators or team members who might use it. It also links to additional information about the breaking changes introduced in v1.
   
   A Closer Look at the Code Logic  
   
   A key strength of the workflow lies in its elegant use of JavaScript within the Code node. Here’s a simplified version of what it does:
   
   - Uses helper functions to:
     - Check if a value is an n8n expression.
     - Check if it contains one of the affected method names.
   - Recursively traverses parameter objects within nodes.
   - Returns a detailed report listing all affected parameters in all workflows.
   
   This means that rather than inspecting each workflow manually—an otherwise tedious and error-prone process—all it takes now is running this helper workflow once.
   
   How to Use the Workflow  
   
   Here’s how you can start using the helper:
   
   1. Make sure your n8n instance is upgraded to v1.x.
   2. Clone or recreate the helper workflow within your workspace.
   3. Execute the workflow manually using the “Execute Workflow” button.
   4. Review the result. It provides a list of workflow and node names along with the exact parameter where an affected expression was found.
   5. Open each of these workflows in edit mode and inspect or fix the expressions.
   
   Benefits of Using This Utility  
   
   - Helps catch potentially workflow-breaking syntax post-upgrade.
   - Saves time by automating the auditing process.
   - Gives granular output for pinpoint accuracy.
   - Uses no external third-party APIs, relying only on the internal n8n API.
   - Set up once and re-run whenever needed.
   
   Final Thoughts  
   
   Version upgrades in automation platforms like n8n often come with improvements, but they also require diligence to ensure continued reliability. The “v1 helper – Find params with affected expressions” is an excellent example of how n8n’s extensibility can be harnessed to create practical, time-saving tooling.
   
   Whether you're running a single instance for side projects or managing dozens of production workflows in an enterprise environment, using this workflow will give you peace of mind—and help ensure your automations continue to run like clockwork.
   
   Be proactive. Run the helper, check for affected expressions, and stay compatible with all the improvements n8n v1 has to offer.

5. Set credentials for each API node (keys, OAuth) in Credentials.
6. Run a test via Execute Workflow. Inspect Run Data, then adjust parameters.
7. Enable the workflow to run on schedule, webhook, or triggers as configured.

Tips: keep secrets in credentials, add retries and timeouts on HTTP nodes, implement error notifications, and paginate large API fetches.

Validation: use IF/Code nodes to sanitize inputs and guard against empty payloads.

Why Automate This with AI Agents

AI‑assisted automations offload repetitive, error‑prone tasks to a predictable workflow. Instead of manual copy‑paste and ad‑hoc scripts, your team gets a governed pipeline with versioned state, auditability, and observable runs.

n8n’s node graph makes data flow transparent while AI‑powered enrichment (classification, extraction, summarization) boosts throughput and consistency. Teams reclaim time, reduce operational costs, and standardize best practices without sacrificing flexibility.

Compared to one‑off integrations, an AI agent is easier to extend: swap APIs, add filters, or bolt on notifications without rewriting everything. You get reliability, control, and a faster path from idea to production.

Best Practices

• Credentials: restrict scopes and rotate tokens regularly.
• Resilience: configure retries, timeouts, and backoff for API nodes.
• Data Quality: validate inputs; normalize fields early to reduce downstream branching.
• Performance: batch records and paginate for large datasets.
• Observability: add failure alerts (Email/Slack) and persistent logs for auditing.
• Security: avoid sensitive data in logs; use environment variables and n8n credentials.

FAQs

Can I swap integrations later? Yes. Replace or add nodes and re‑map fields without rebuilding the whole flow.

How do I monitor failures? Use Execution logs and add notifications on the Error Trigger path.

Does it scale? Use queues, batching, and sub‑workflows to split responsibilities and control load.

Is my data safe? Keep secrets in Credentials, restrict token scopes, and review access logs.