Engram Trigger icon

Engram Trigger

Triggers when new entities, relationships, or episodes are added to the knowledge graph

Engram Trigger

AI-generated

Summary

Polls the selected Engram storage backend on the configured schedule and emits newly added entities, relationships, or episodes, optionally limited to one group/session.

Inputs

  • Poll Times (required) — One or more polling schedules: every minute, hour, day, week, or month; every X minutes or hours; or a custom cron expression. The default schedule is every minute.
  • Backend (required) — Choose Embedded (Graphology) or Neo4j (Remote); defaults to Embedded.
  • Custom Storage Path — For Embedded storage, optionally set the graph data directory. When empty, the node uses the default n8n storage directory.
  • Event (required) — Choose which additions to watch: New Entity, New Relationship, or New Episode. Defaults to New Entity.
  • Group ID — Limit polling to a specific group/session. When empty, watch all groups.

Output shape

A list of n8n items for records matching the selected event that were added since the previous poll.

The trigger tracks a cursor between polls to avoid emitting previously seen records. Each emitted item contains the matching record data.

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