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Implements operation-aware node configuration with progressive discovery. Completes the final skill in the 5-skill n8n meta-skill collection. Files created: - 4 evaluations testing dependencies, operations, conditional fields, tool selection - SKILL.md (692 lines) - Configuration workflow, progressive discovery, patterns - DEPENDENCIES.md (671 lines) - displayOptions mechanism, dependency patterns - OPERATION_PATTERNS.md (783 lines) - 20+ nodes with common configurations - README.md (380 lines) - Skill metadata with usage statistics Key features: - Operation-aware configuration (resource + operation = requirements) - Property dependencies (displayOptions show/hide rules) - Progressive discovery (essentials → dependencies → info) - Configuration workflow (identify → discover → configure → validate → iterate) - 4 common node patterns (resource/operation, HTTP, database, conditional) - Tool selection guide (get_node_essentials 91.7% success rate) - Dependency troubleshooting (field visibility, conditional requirements) - 20+ node configuration examples with gotchas Progressive discovery strategy: 1. get_node_essentials (91.7% success, 18s avg from search) 2. get_property_dependencies (when dependencies unclear) 3. get_node_info (only when necessary, full schema) Property dependency patterns: - Boolean toggle (sendBody → body) - Resource/operation cascade (different ops → different fields) - Type-specific config (string vs number conditions) - Method-specific fields (GET vs POST) Common node patterns covered: - HTTP Request (GET/POST/PUT/DELETE with auth, query, body) - Webhook (basic/auth/response, $json.body gotcha) - Slack (post/update/create channel) - Gmail (send/get with filters) - Postgres (query/insert/update with parameters) - Set (fixed values/mapping with types) - Code (per-item/all-items, no expressions!) - IF (string/number/boolean, unary vs binary) - Switch (rules with fallback) - OpenAI (chat completion with system prompt) - Schedule (daily/interval/cron with timezone) Key insights: - 91.7% configurations succeed with essentials only - Average 56 seconds between configuration edits (iterative) - 9,835 essentials calls vs fewer full schema calls - 18 seconds average from node search to essentials - Different operations = different requirements (always check!) Top 5 gotchas documented: 1. Webhook data under $json.body (not $json) 2. POST needs sendBody: true 3. Slack channel format (#name for public) 4. SQL parameterized queries (prevent injection) 5. Schedule timezone must be explicit (DST handling) displayOptions mechanism: - show: Field appears when conditions match - hide: Field disappears when conditions match - AND logic: All conditions must match - OR logic: Any value matches - Nested: Parent value controls child structure Total: ~2,526 lines across 8 files Based on analysis of 38,287 workflow updates and 9,835 essentials calls. 🎉 ALL 5 CORE SKILLS NOW COMPLETE! 🎉 Skills completed: 1. ✅ n8n Expression Syntax (1,275 lines) 2. ✅ n8n MCP Tools Expert (1,325 lines) 3. ✅ n8n Workflow Patterns (3,932 lines) 4. ✅ n8n Validation Expert (2,553 lines) 5. ✅ n8n Node Configuration (2,526 lines) Total: ~11,611 lines across 36 files + 22 evaluations All skills data-driven from 447,557 real MCP tool usage events. 🤖 Conceived by Romuald Członkowski - https://www.aiadvisors.pl/en