Daily Google Tasks briefing in Slack with Ollama-powered summaries

Tasks Briefing This template posts a clean, Slack-ready morning summary of your Google Tasks due today. It fetches tasks, filters only those due “today” in your timezone, asks a local LLM (via LangChain + Ollama) to produce a short summary (no steps, just a concise brief), strips any hidden <think> blocks, and delivers the message to your chosen Slack channel. How it works 1. Trigger at Morning (Cron) – runs at 7:00 AM (you can change the hour) to kick things off daily. 2. Get many tasks (Google Tasks node) – pulls tasks from your selected Google Tasklist. 3. Code (Filter Due Today) – normalizes dates to your timezone, keeps only tasks due today, and emits a fallback flag if none exist. 4. If – routes: True (has tasks) → continues to the LLM summary path. False (no tasks) → sends a “No tasks due today” message to Slack. 5. Code (Build LLM Prompt) – builds a compact, Markdown-only prompt for the model (no tool calls). 6. Basic LLM Chain (LangChain) + Ollama Model – generates a short summary for Slack. 7. Code (Cleanup) – removes any <think>…</think> content if the model includes it. 8. Send a message (Slack) – posts the final brief to your Slack channel. Required credentials Google Tasks OAuth2 API – to read tasks from your Google Tasklist. Slack API – to post the summary into a channel. Ollama – local model endpoint (e.g., qwen3:4b); used by the LangChain LLM nodes. Setup Instructions 1. Google Tasks credential In Google Cloud Console: enable Google Tasks API, create an OAuth Client (Web), and set the redirect URI shown by n8n. In n8n Credentials, add Google Tasks OAuth2 API with scope: https://www.googleapis.com/auth/tasks (read/write) or https://www.googleapis.com/auth/tasks.readonly (read-only). In the Get many tasks node, select your credential and your Tasklist. 2. Slack credential & channel In n8n Credentials, add Slack API (bot/user token with chat:write). In Send a message nodes, select your Slack credential and set the Channel (e.g., new-leads). 3. Ollama model (LangChain) Ensure Ollama is running on your host (default http://localhost:11434). Pull a model (e.g., ollama pull qwen3:4b) or use another supported model (llama3:8b, etc.). In Ollama Model node, select your Ollama credential and set the model name to match what you pulled. 4. Timezone & schedule The Cron node is set to 7:00 AM. Adjust as needed. The Code (Filter Due Today) node is configured for Asia/Dhaka; change the TZ constant if you prefer a different timezone. 5. (Optional) Cleanup safety The template includes a Code (Cleanup) node that strips <think>…</think> blocks from model output. Keep this connected before the Slack node. 6. Test the flow Run the workflow once manually: If you have tasks due today, you should see a concise summary posted to your Slack channel. If none are due, you’ll receive a friendly “No tasks due today” message. 7. Activate When everything looks good, toggle the workflow Active to receive the daily summary automatically.