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n8n-node-configuration-official

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Use when configuring any n8n node: HTTP, webhooks, database, comms (Slack/Gmail/Discord), AI, triggers, Merge, anything. Triggers on any node-builder call (`node(...)`, `trigger(...)`, `tool(...)`, `memory(...)`, `languageModel(...)`, `ifElse(...)`, `merge(...)`, etc.), configuring a parameter, `useDataOfInput`, `numberOfInputs`, fan-in convergence, or any node-specific debugging.

skills/n8n-node-configuration-official/SKILL.md

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# n8n Node Configuration

Each n8n node has its own parameter shape, often with conditional fields (parameter X only matters when parameter Y has value Z). Shapes evolve between versions. Guessing produces cryptic validation errors.

Don't guess, use the `get_node_types` tool.

## Non-negotiable

**Call `get_node_types` with discriminators (resource, operation, mode) before configuring a node.** Without discriminators you get the generic shape, missing operation-specific parameters and required fields. Build against the exact shape. Don't guess from memory.

**The live `get_node_types` output is the canonical parameter shape.** The references in this skill cover patterns, gotchas, security rules, and decision-making (when to use which operation, why credentials over text fields, engine retry caps, etc.) not parameter names or field structures. If a reference example conflicts with what `get_node_types` returns, trust the tool. Markdown drifts; the type def is generated from the live source.

**Never guess resource-locator or load-options values.** When `get_node_types` shows a param with `@searchListMethod` or `@loadOptionsMethod` (Slack channels, Sheets tabs/docs, DB tables/columns, model lists, labels), resolve the real value with `explore_node_resources` (pass a `credentialId` from `list_credentials`) and use a returned `value`. If you already know the exact ID, use it; if several match and intent is ambiguous, ask the user. An invented ID validates but points at nothing. Exception: `toolWorkflow.workflowId` has no search method, resolve it via `search_workflows` and use `mode: 'id'`.
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