Idempotent
An operation that produces the same result regardless of how many times it's executed.
Why it matters
Agents retry failed operations. Idempotent design means retries are always safe.
In practice
Our n8n workflows use content-hash deduplication: processing the same RSS article twice doesn't create duplicates.
See this in practice
How Leap Laboratory uses this concept in real work.
In our service
Automation Architecture→Example use cases