Explain pasted code and follow-up questions with GPT-4.1 and Slack
Needs changesNeeds changes. This template uses 1 thing(s) that n8n 3.0 removes: AI Agent v1 (old agent modes). 1 breaking item(s) found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 19 nodes and runs when an HTTP POST request hits its webhook URL. Along the way it connects OpenAI Chat Model, Slack and Discord.
How it runs
Trigger: When an HTTP POST request hits its webhook URL.
- Set - Config (Edit Fields (Set)): sets 7 fields: code, focusQuestion, audienceLevel…
- Switch: routes items into 2 branches
- Set - Beginner Explanation Style (Edit Fields (Set)): sets 1 field: explanationStyle
- Set - Expert Explanation Style (Edit Fields (Set)): sets 1 field: explanationStyle
- Set - Intermediate Explanation Style (Edit Fields (Set)): sets 1 field: explanationStyle
- AI Agent: runs an AI agent, with model: OpenAI Chat Model; 1 tool (Tool - Analyze Code Structure); memory: Window Buffer Memory
- Set - Parse Agent Output (Edit Fields (Set)): sets 1 field: parsedOutput
- If: checks a condition and branches into true / false
- Wait: pauses before continuing
- Switch: routes items into 2 branches
…plus 5 more steps. See the full node list below.
Services it uses
Before you upgrade to n8n 3.0
1 thing in this workflow is removed in n8n 3.0. Fix it before you upgrade:
- AI Agent v1 (old agent modes) in AI Agent - Code Explainer (v1.6): replace with Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent.
Rather not rewrite it? Many of these flows can be rebuilt in Make (free plan).
| Removed in 3.0 | Replace with |
|---|---|
| AI Agent v1 (old agent modes) AI Agent - Code Explainer (v1.6) | Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent. |
Nodes used (12)
- Webhook
n8n-nodes-base.webhook - Edit Fields (Set)
n8n-nodes-base.set - Switch
n8n-nodes-base.switch - Code Tool
@n8n/n8n-nodes-langchain.toolCode - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Simple Memory
@n8n/n8n-nodes-langchain.memoryBufferWindow - AI Agent
@n8n/n8n-nodes-langchain.agent - If
n8n-nodes-base.if - Wait
n8n-nodes-base.wait - Respond to Webhook
n8n-nodes-base.respondToWebhook - Slack
n8n-nodes-base.slack - Discord
n8n-nodes-base.discord
From the author
Quick overview This workflow receives a code snippet via webhook, performs deterministic static analysis, uses an OpenAI chat model to generate a structured explanation and optional follow-up answer, then sends the final report to a Slack channel after an…