Make Operations Idempotent
Trigger
For commands, lifecycle steps, retries, loops, or crash recovery.
Rule
Design repeated execution to converge on the same correct end state rather than multiplying side effects.
Application
- Name the concrete decision this principle changes.
- Apply the rule to that decision, not as a decorative citation.
- Prefer evidence from the current repository/runtime over generic preference.
- If the principle conflicts with an explicit user constraint, keep the constraint and state the tradeoff.