I built a community node that cleans email threads before you pass them to an AI node. A typical 10-email support thread is ~3,000 tokens. This strips it to ~400. Saves 73% on average.
What it removes: quoted replies (Gmail, Outlook, Apple Mail, Yahoo), signatures (14 languages), helpdesk separators (Zendesk, Freshesk, Intercom), disclaimers, HTML.
Install: Settings –> Community Nodes –> n8n-nodes-clean-email
Would love feedback. !hat patterns does it miss for your use case?