n8n Loops

What it does

The n8n Loops skill codifies best practices for iteration in n8n workflows. It explains the three core meanings of "loop": default per-item execution, single-run (executeOnce) aggregate execution, and explicit batching via the Loop Over Items node. The documentation clarifies when to rely on the platform's implicit per-item iteration versus when to set executeOnce or use Loop Over Items for rate-limited or chunked processing. It also covers HTTP Request pagination as the preferred approach for paginated APIs.

When to use it

Use this skill when building or debugging n8n workflows that process arrays, call paginated APIs, need batching/rate-limiting, or must aggregate results into a single payload. Apply it when encountering duplicate outputs from aggregates, unexpected repeated webhooks, or LLM calls firing multiple times. It is useful for both beginners learning n8n and engineers optimizing production workflows.

What's included

• Scripts: none.
• References: includes a references/ directory (e.g., HTTP_PAGINATION.md and LOOP_OVER_ITEMS.md) with configuration examples.
• Instructions: decision trees, configuration examples for executeOnce, pagination patterns, Loop Over Items wiring, and anti-patterns to avoid.

Compatible agents

Useful for agents advising on workflow automation, orchestration, and low-code platforms (automation/DevOps assistants, integration specialists).