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N8n Node Configuration Official

n8nOfficialPublished by n8n

  • Skill
  • Tool integration
  • Automation and integrations
  • Apache-2.0
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From the author

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.
— the description by n8n

AutoGineer summary

Written by AutoGineer from the skill’s own files, not by the author

This skill provides the definitive methodology for configuring n8n nodes. It emphasizes using live tool outputs over memory to determine parameter shapes, ensuring that developers avoid cryptic validation errors caused by evolving node definitions. It covers the full lifecycle of node configuration, from initial discovery and discriminator selection to resource grounding and final validation.

What it does

  • Defines the standard workflow for discovering and configuring any n8n node.
  • Explains how to use discriminators like resource, operation, and mode to fetch correct parameter shapes.
  • Provides patterns for resolving dynamic values using load-options and search methods.
  • Outlines the use of validation tools to debug configurations mid-build.
  • Offers specific guidance for common node categories including HTTP, AI, and communication nodes.
  • Lists anti-patterns to avoid, such as hardcoding credentials or relying on stale node configurations.

When to use it

  • When you are adding a new node to an n8n workflow.
  • When you encounter validation errors or 'field does not exist' messages.
  • When you need to configure complex nodes like AI Agents, Slack, or database connectors.
  • When you are unsure about the required parameters for a specific operation.
  • When you need to resolve dynamic resource IDs like channel names or database tables.

Advantages

  • Prevents common configuration errors by relying on live, canonical schema data.
  • Reduces development time by providing a clear, step-by-step configuration flow.
  • Ensures workflows are robust and less prone to breaking during n8n version updates.
  • Promotes secure practices by enforcing the use of credentials over hardcoded tokens.

Usage examples

“How do I configure a Slack node to send a message?”
The agent will guide you to first use get_node_types with the correct resource and operation, then use explore_node_resources to find the correct channel ID, and finally build the configuration using the returned schema.
“I am getting a validation error on my Postgres node, what should I do?”
The agent will instruct you to re-fetch the node type with your specific operation (e.g., executeQuery) and verify that all required conditional fields are present, rather than guessing based on previous configurations.

Install

  1. Download the skill as a ZIP:

    https://autogineer.com/agent-skills/n8n-io/n8n-node-configuration-official/download
  2. Unzip it into the cross-client skills folder of your project:

    mkdir -p .agents/skills && unzip n8n-node-configuration-official.zip -d .agents/skills

Documentation by n8n

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'.

Strong defaults

  • Configure operation-first. Set resource and operation first, and conditional parameters become visible. Most "field doesn't exist" errors are really "you haven't set the parent operation yet."

  • Don't carry parameters across operations. When changing operation, re-derive from the new shape. Stale parameters from the previous operation trip validation.

The flow for any new node

1. search_nodes(['<capability keyword>'])
   → returns matching node IDs + discriminators
2. Pick the right (resource, operation) for the task.
3. get_node_types([{ name: '...', resource: '...', operation: '...' }])
   → returns exact parameter shape including conditional fields
4. For any RLC / load-options param in that shape, ground the real value:
   explore_node_resources({ nodeType, version, methodName, methodType, credentialType, credentialId, currentNodeParameters? })
   → use a returned `value`. Don't invent IDs.
5. Build the node config from that shape.
6. validate_workflow → fix errors.
7. get_workflow_details → inspect the saved config; confirm parameters landed.
8. test_workflow with pinned data → confirm runtime behavior.

Skipping any step compounds the next. The most common skip is step 3, leading to "Cannot read property X" errors that are really "you didn't pass the discriminators."

validate_node_config as a side-channel

validate_node_config([{ type, typeVersion, parameters, isToolNode? }]) runs the same Zod schema as validate_workflow on isolated node configs. Schema-level only; doesn't replace validate_workflow (still the publish gate). Cleaner signal for:

  • Iterating on a single node mid-build. Faster than re-running validate_workflow per tweak.

  • Small edits to an existing workflow. Wiring unchanged? Check the one node you touched; full validate before publish.

  • Debugging a misconfigured node. Per-parameter errors with no graph noise.

For tool subnodes (wired via ai_tool), set isToolNode: true so the correct displayOptions branch evaluates.

Operation-aware configuration

Most nodes have a top-level shape like:

{
  resource: '<thing being operated on>',   // 'message', 'spreadsheet', 'user', etc.
  operation: '<verb>',                      // 'send', 'append', 'lookup', etc.
  // ...operation-specific parameters
}

The (resource, operation) pair determines what other parameters exist (e.g., Slack (message, send) differs from (user, info)).

Pattern:

  1. Set resource and operation first.

  2. Re-fetch get_node_types with those discriminators if you didn't initially.

  3. Configure the rest from the operation-specific shape.

Property dependencies: the subtle trap

Some parameters depend on others in non-obvious ways:

  • A field is required only when another field has a specific value.

  • A field accepts different types depending on a mode.

  • A field's options come from another field's value.

Examples:

  • HTTP Request authentication: 'genericCredentialType' requires genericAuthType and credentials, but 'predefinedCredentialType' requires a different shape.

  • Postgres operation: 'executeQuery' requires query, while operation: 'select' requires table and columns.

  • Slack messageType: 'block' enables block-builder fields absent from messageType: 'text'.

Always inspect via get_node_types for the specific operation. Don't reuse a config from a different operation and expect it to validate.

Options-from-another-field is a @loadOptionsMethod: resolve the live options with explore_node_resources (methodType: 'loadOptions'), passing prior selections via currentNodeParameters when the method depends on them (e.g. listing a spreadsheet's tabs needs documentId).

Reference files

Per-category gotchas. Read the file for the node type you're configuring:

FileWhen to read
references/HTTP_NODES.mdConfiguring HTTP Request: auth, pagination, query/body parameters, retries
references/WEBHOOK_NODES.mdConfiguring Webhook trigger or Respond to Webhook: body parsing, response shape, async patterns
references/COMMS_NODES.mdSlack, Gmail, Discord, email: credential types, message shapes, attachments
references/DATABASE_NODES.mdPostgres, MySQL, Mongo, Supabase: query vs operation, parameter binding, error handling
references/AI_NODES.mdAI Agent node config knobs: streaming, vision, maxIterations, retries on the model sub-node. Defers design (prompts, tools, memory, structured output) to n8n-ai-nodes-official
references/TRIGGER_NODES.mdWebhook, Schedule, Manual, Execute Workflow Trigger: input schemas, polling vs realtime
references/SWITCH_FALLBACK.mdConfiguring a Switch node: unnamed outputs / missing fallback silently drop unmatched items
references/MERGE_NODE.mdConfiguring a Merge node, or you see useDataOfInput, numberOfInputs, or branches converging

Anti-patterns

Anti-patternWhat goes wrongFix
Building node config from memory of how the node looked last yearParameter shape has drifted, validation fails with cryptic errorsAlways get_node_types per session per node
Skipping discriminators in get_node_typesGet generic shape, miss operation-specific required fieldsAlways pass resource + operation (and mode where present)
Copying a node config from one operation to another and tweakingStale parameters trip validation, and conditional fields don't applyRe-derive from the new operation's shape
Hardcoding tokens / credentials in node text fieldsLeaks on export. See n8n-credentials-and-security-officialAlways credentials
Not testing the node with test_workflow after configuringRuntime errors only surface on real dataAlways test with pinned data before publish

Files

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Requirements and compatibility

Works with: Claude Code, Claude apps, OpenAI Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Goose, Amp, Roo Code, JetBrains Junie, Factory Droid, Devin (ex-Windsurf), Mistral Vibe, OpenHands, Letta

“Works with” means the tool reads the open Agent Skills format; a skill written for one tool may use features others lack.

Needs: Needs Node.js

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Attribution and licence

Published by
n8n
Publisher
n8n (Official)
Source
n8n-io/skills · skills/n8n-node-configuration-official · commit 27b6b9f
Licence
Apache License 2.0 (redistribution allowed)
  • LICENSE (added by AutoGineer from LICENSE)
  • ATTRIBUTION.md (written by AutoGineer)
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