n8n-expressions-official
Covers n8n expression syntax, $json, $node, and $input references, plus Luxon date operations. Supports field transformations, node parameter assignments, and expression error diagnosis.
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Find your next superpower If you are an agent, refer to our llms.txt for full access.Covers n8n expression syntax, $json, $node, and $input references, plus Luxon date operations. Supports field transformations, node parameter assignments, and expression error diagnosis.
Turns n8n workflows into tools a coding agent can invoke. Supports wrapping API capabilities absent from existing MCP tools and exposing workflows that call external APIs or execute business logic.
Guides processing of multiple items, paginated APIs, and batches in n8n. Covers rate limits, branch fan-out, concurrency, and whether nodes should execute once or once per item.
Provides tool selection guidance, parameter formats, and common n8n MCP usage patterns. Covers templates, workflow folders, credentials, configuration validation, and instance security audits.
Manages instance selection in n8n MCP accounts with multiple environments. Covers target verification before credential changes and recovery from unexpected missing data, misroutes, and INSTANCE_AMBIGUOUS errors.
Explains required fields, property dependencies, and configuration patterns by node type. Covers detail-level selection, displayOptions visibility, and choosing field patches versus full node updates.
Supports configuration of HTTP, webhook, database, messaging, AI, trigger, and merge nodes. Covers node builder calls, input settings, fan-in convergence, and node-specific debugging.
Deploys n8n over SSH in regular or queue mode with generated secrets and automatic HTTPS. Covers updates, backups, restoration, hardening, Python task runners, and credential overwrites.
Guides extraction of shared logic into composable sub-workflows. Covers typed inputs, per-item versus all-item execution, discoverable naming, state management, and exposing workflows as agent tools.
Guides extraction and reuse of shared logic in n8n workflows. Applies to multistep builds, larger workflows, and tasks that repeat logic already implemented elsewhere.
Explains validation errors, warnings, operator structure issues, and false positives. Guides validation profiles, iterative fixes, and use of automatic correction capabilities.
Supports document workflow automation with n8n. Includes more than 7,800 workflow templates.
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