Automate peer review assignments with Sonar Pro AI & multi-channel deadline reminders
Needs changesNeeds changes. This template uses 2 thing(s) that n8n 3.0 removes: Read PDF, AI Agent v1 (old agent modes). 2 breaking item(s) found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 21 nodes and runs manually, when you click “Execute workflow” (plus 2 other triggers). Along the way it connects Microsoft Teams, Discord, Google Sheets and OpenRouter Chat Model.
How it runs
Trigger: Manually, when you click “Execute workflow” (plus 2 other triggers).
- Check Review Deadlines (Google Sheets): uses Google Sheets
- Extract Submission Data (Edit Fields (Set)): sets or maps fields
- Filter: keeps only the items that match a condition
- Read Assignment File (Read PDF): uses Read PDF
- Send Deadline Reminder - Teams (Microsoft Teams): work with message
- Send Deadline Reminder - Discord (Discord): work with message
- Send Deadline Reminder - Email (Send Email): sends an email over SMTP
- AI Evaluation - Technical Criteria (AI Agent): runs an AI agent, with model: OpenRouter Chat Model; output parser: Structured Output Parser
- Store Evaluation Results (Edit Fields (Set)): sets or maps fields
- Split Peer Reviewers (Split Out): splits a list into separate items
…plus 6 more steps. See the full node list below.
Services it uses
Before you upgrade to n8n 3.0
2 things in this workflow are removed in n8n 3.0. Fix them before you upgrade:
- Read PDF in Read Assignment File: replace with Extract from File node, 'Extract From PDF' operation.
- AI Agent v1 (old agent modes) in AI Evaluation - Technical Criteria (v1.7): 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 |
|---|---|
| Read PDF Read Assignment File | Extract from File node, 'Extract From PDF' operation |
| AI Agent v1 (old agent modes) AI Evaluation - Technical Criteria (v1.7) | Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent. |
Nodes used (15)
- Manual Trigger
n8n-nodes-base.manualTrigger - Schedule Trigger
n8n-nodes-base.scheduleTrigger - Webhook
n8n-nodes-base.webhook - Edit Fields (Set)
n8n-nodes-base.set - Read PDF
n8n-nodes-base.readPDF - AI Agent
@n8n/n8n-nodes-langchain.agent - Structured Output Parser
@n8n/n8n-nodes-langchain.outputParserStructured - Split Out
n8n-nodes-base.splitOut - Microsoft Teams
n8n-nodes-base.microsoftTeams - Discord
n8n-nodes-base.discord - Send Email
n8n-nodes-base.emailSend - Google Sheets
n8n-nodes-base.googleSheets - Filter
n8n-nodes-base.filter - Respond to Webhook
n8n-nodes-base.respondToWebhook - OpenRouter Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenRouter
From the author
Introduction Automate peer review assignment and grading with AI-powered evaluation. Designed for educators managing collaborative assessments efficiently. How It Works Webhook receives assignments, distributes them, AI generates review rubrics, emails…