Listing and Paginating an Agent's Messages

Short summary

Nylas cursor-based pagination prevents duplicate message processing during agent polling by using page_token cursors instead of offsets—critical when new mail arrives mid-walk. Combine filters like in=inbox, unread=true, and received_after for efficient incremental syncs; use webhooks for hot-path reactivity with periodic polling as a safety net. The /messages/clean endpoint strips quoted replies and signature noise before feeding email bodies to LLMs, reducing token costs significantly.

• •Cursor pagination avoids offset-based duplicates when new mail arrives during polling
• •Stack filters (in=inbox, unread=true, received_after) for cheap incremental reads; combine webhooks + polling for reliability
• •Use /messages/clean to strip email noise before LLM ingestion and reduce token spend

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