Initial commit

2025-11-30 08:50:41 +08:00
commit df81ee8059
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--- a/.claude-plugin/plugin.json
+++ b/.claude-plugin/plugin.json
@@ -0,0 +1,12 @@
+{
+  "name": "n8n",
+  "description": "Interacts with the n8n API.",
+  "version": "0.0.0-2025.11.28",
+  "author": {
+    "name": "Tim Green",
+    "email": "rawveg@gmail.com"
+  },
+  "skills": [
+    "./skills/n8n"
+  ]
+}
--- a/README.md
+++ b/README.md
@@ -0,0 +1,3 @@
+# n8n
+
+Interacts with the n8n API.
--- a/plugin.lock.json
+++ b/plugin.lock.json
@@ -0,0 +1,64 @@
+{
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+  "pluginId": "gh:rawveg/skillsforge-marketplace:n8n",
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+    "description": "Interacts with the n8n API."
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+}
--- a/skills/n8n/SKILL.md
+++ b/skills/n8n/SKILL.md
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+---
+name: n8n
+description: N8N Documentation - Workflow automation platform with AI capabilities
+---
+
+# N8N Skill
+
+Comprehensive assistance with n8n development, generated from official documentation. n8n is a fair-code licensed workflow automation tool that combines AI capabilities with business process automation.
+
+## When to Use This Skill
+
+This skill should be triggered when:
+- Building or debugging n8n workflows
+- Working with the Code node (JavaScript or Python)
+- Using expressions and data transformations
+- Implementing AI agents, chains, or RAG workflows
+- Configuring n8n deployments (Docker, npm, self-hosted)
+- Setting up webhooks, credentials, or integrations
+- Handling errors in workflows
+- Scaling n8n with queue mode
+- Creating custom nodes or white labeling n8n
+- Using the n8n API programmatically
+- Working with LangChain in n8n
+- Migrating to n8n v1.0
+
+## Key Concepts
+
+### Core Components
+- **Workflows**: Visual automation flows with nodes connected together
+- **Nodes**: Individual operations in a workflow (trigger, action, logic, etc.)
+- **Expressions**: Code snippets using `{{ }}` syntax to access and transform data
+- **Credentials**: Secure storage for API keys and authentication
+- **Executions**: Individual workflow runs with their data and status
+
+### Data Structure
+- n8n passes data between nodes as **items** (array of JSON objects)
+- Each item has a `json` property containing the main data
+- Binary data is stored separately in the `binary` property
+- Use `$json` to access current item's data in expressions
+
+### AI Capabilities
+- **Agents**: AI that can use tools and make decisions
+- **Chains**: Predefined sequences of AI operations
+- **Memory**: Store conversation history for context
+- **Tools**: Functions that AI agents can call
+- **Vector Databases**: Store and retrieve embeddings for RAG
+
+## Quick Reference
+
+### Example 1: Basic Expression to Access Data
+```javascript
+// Access data from the current item
+{{ $json.name }}
+
+// Access data from a specific node
+{{ $node["HTTP Request"].json.response }}
+
+// Access all items from a node
+{{ $("HTTP Request").all() }}
+```
+
+### Example 2: HTTP Request with Authentication
+When working with the HTTP Request node, handle errors and rate limits:
+
+```javascript
+// In HTTP Request node settings:
+// - Enable "Retry on Fail"
+// - Set Max Tries to 3
+// - Set Wait Between Tries (ms) to 1000
+
+// For rate limiting, use Batching:
+// - Items per Batch: 10
+// - Batch Interval (ms): 1000
+```
+
+### Example 3: Code Node - Transform Data (JavaScript)
+```javascript
+// Access input data
+const items = $input.all();
+
+// Transform each item
+return items.map(item => {
+  return {
+    json: {
+      fullName: `${item.json.firstName} ${item.json.lastName}`,
+      email: item.json.email.toLowerCase(),
+      timestamp: new Date().toISOString()
+    }
+  };
+});
+```
+
+### Example 4: Code Node - Filter Data (Python)
+```python
+# Filter items based on a condition
+output = []
+
+for item in items:
+    if item['json']['status'] == 'active':
+        output.append({
+            'json': {
+                'id': item['json']['id'],
+                'name': item['json']['name']
+            }
+        })
+
+return output
+```
+
+### Example 5: Expression - Date Handling with Luxon
+```javascript
+// Current date
+{{ $now }}
+
+// Format date
+{{ $now.toFormat('yyyy-MM-dd') }}
+
+// Add 7 days
+{{ $now.plus({ days: 7 }) }}
+
+// Parse and format custom date
+{{ DateTime.fromISO($json.dateString).toFormat('LLL dd, yyyy') }}
+```
+
+### Example 6: JWT Authentication Credential
+For APIs requiring JWT authentication:
+
+```javascript
+// Use JWT credential with:
+// - Key Type: Passphrase (for HMAC) or PEM Key (for RSA/ECDSA)
+// - Secret: Your secret key
+// - Algorithm: HS256, RS256, ES256, etc.
+
+// The JWT credential automatically generates tokens
+// Use it in HTTP Request node > Authentication > JWT
+```
+
+### Example 7: Handle Errors in Workflow
+```javascript
+// In Code node, use try-catch:
+try {
+  const result = $json.data.someField.toUpperCase();
+  return [{ json: { result } }];
+} catch (error) {
+  // Return error information
+  return [{
+    json: {
+      error: error.message,
+      originalData: $json
+    }
+  }];
+}
+
+// Or set up Error Workflow in Workflow Settings
+// to catch all failures and send notifications
+```
+
+### Example 8: Pagination in HTTP Request
+```javascript
+// Use pagination to fetch all pages
+// In HTTP Request node > Pagination:
+
+// Type: Generic Pagination
+// Request URL: {{ $url }}&page={{ $pageNumber }}
+// Complete When: {{ $response.body.hasMore === false }}
+// Next Page URL: Automatic
+```
+
+### Example 9: AI Agent with Tools
+```javascript
+// In AI Agent node:
+// 1. Connect a Chat Model (OpenAI, etc.)
+// 2. Add tools (Calculator, HTTP Request, etc.)
+// 3. Configure memory if needed
+
+// The agent can:
+// - Analyze user input
+// - Decide which tools to use
+// - Execute tools and process results
+// - Return final answer
+```
+
+### Example 10: Environment Variables and Static Data
+```javascript
+// Access environment variables
+{{ $env.MY_API_KEY }}
+
+// Store workflow static data (persists across executions)
+const staticData = getWorkflowStaticData('global');
+staticData.lastRun = new Date().toISOString();
+staticData.counter = (staticData.counter || 0) + 1;
+
+// Retrieve static data
+{{ $workflow.staticData.counter }}
+```
+
+## Reference Files
+
+This skill includes comprehensive documentation in `references/`:
+
+- **llms-txt.md** - Complete n8n documentation formatted for LLMs
+  - Installation and setup guides
+  - Node reference documentation
+  - API documentation
+  - Code examples and patterns
+  - Configuration options
+  - Troubleshooting guides
+
+- **llms-full.md** - Extended documentation with deep technical details
+  - Advanced configuration
+  - Scaling and performance
+  - Security and authentication
+  - Custom node development
+  - White labeling and embed options
+
+Use `view` to read specific reference files when detailed information is needed.
+
+## Working with This Skill
+
+### For Beginners
+1. Start with basic workflow creation:
+   - Trigger nodes (Webhook, Schedule, Manual)
+   - Action nodes (HTTP Request, Set, Edit Fields)
+   - Learn expression syntax with simple `{{ $json.field }}` access
+
+2. Understand data structure:
+   - Each node outputs an array of items
+   - Use the data inspector to see item structure
+   - Practice with the Edit Fields node for data transformation
+
+3. Common patterns:
+   - Webhook → HTTP Request → Set → Respond to Webhook
+   - Schedule → Code → HTTP Request → Conditional
+   - Manual → Loop Over Items → Process Each
+
+### For Intermediate Users
+1. Master the Code node:
+   - JavaScript mode for complex transformations
+   - Access `$input.all()` for all items
+   - Return properly formatted items with `json` property
+
+2. Work with expressions:
+   - Use built-in methods: `.first()`, `.last()`, `.item`
+   - Date manipulation with Luxon
+   - JMESPath for complex JSON queries
+
+3. Error handling:
+   - Use Try-Catch in Code nodes
+   - Set up Error Workflows
+   - Configure Retry on Fail for API calls
+
+4. Data operations:
+   - Merge data from multiple sources
+   - Split and filter items
+   - Loop over items for batch processing
+
+### For Advanced Users
+1. AI and LangChain:
+   - Build AI agents with custom tools
+   - Implement RAG with vector databases
+   - Use memory for conversational workflows
+   - Chain multiple AI operations
+
+2. Scaling and performance:
+   - Configure queue mode for distributed execution
+   - Optimize database settings
+   - Use execution data pruning
+   - Configure task runners
+
+3. Custom development:
+   - Create custom nodes
+   - White label n8n for embedding
+   - Use the n8n API for workflow management
+   - Implement external secrets with AWS/Azure/GCP
+
+4. Advanced patterns:
+   - Sub-workflows for reusability
+   - Webhook authentication and validation
+   - Complex data transformations with JMESPath
+   - Real-time data processing with SSE/WebSockets
+
+## Common Issues and Solutions
+
+### HTTP Request Errors
+- **400 Bad Request**: Check query parameters and array formatting
+- **403 Forbidden**: Verify credentials and API permissions
+- **429 Rate Limit**: Use Batching or Retry on Fail options
+- **404 Not Found**: Verify endpoint URL is correct
+
+### Expression Errors
+- Workflows now fail on expression errors in v1.0+
+- Set up Error Workflows to catch failures
+- Test expressions in the expression editor
+- Check for undefined values before accessing properties
+
+### Data Type Issues
+- Use `.toString()`, `.toNumber()` for type conversion
+- Handle null/undefined with `{{ $json.field || 'default' }}`
+- Binary data requires special handling with buffers
+
+### Migration to v1.0
+- New execution order (depth-first instead of breadth-first)
+- Python support in Code node (Pyodide)
+- Mandatory user management (no more BasicAuth)
+- WebSocket push backend is now default
+- Node 18.17.0 or higher required
+
+## Environment Configuration
+
+### Docker Setup
+```bash
+# Basic n8n with Docker
+docker run -it --rm \
+  --name n8n \
+  -p 5678:5678 \
+  -v ~/.n8n:/home/node/.n8n \
+  n8nio/n8n
+
+# With environment variables
+docker run -it --rm \
+  --name n8n \
+  -p 5678:5678 \
+  -e N8N_BASIC_AUTH_ACTIVE=true \
+  -e N8N_BASIC_AUTH_USER=admin \
+  -e N8N_BASIC_AUTH_PASSWORD=password \
+  -v ~/.n8n:/home/node/.n8n \
+  n8nio/n8n
+```
+
+### Key Environment Variables
+- `N8N_HOST`: Hostname (default: localhost)
+- `N8N_PORT`: Port (default: 5678)
+- `N8N_PROTOCOL`: http or https
+- `WEBHOOK_URL`: External webhook URL
+- `N8N_ENCRYPTION_KEY`: Encryption key for credentials
+- `DB_TYPE`: Database type (sqlite, postgres)
+- `EXECUTIONS_MODE`: queue or main (queue for scaling)
+
+## Resources
+
+### Official Resources
+- [n8n Documentation](https://docs.n8n.io/)
+- [n8n Community Forum](https://community.n8n.io/)
+- [n8n Workflow Templates](https://n8n.io/workflows/)
+- [n8n GitHub Repository](https://github.com/n8n-io/n8n)
+
+### Learning Paths
+- Level One Course: Basic workflow building
+- Level Two Course: Advanced data handling and error management
+- Video Courses: Visual learning resources
+- AI Tutorial: Build AI workflows from scratch
+
+### API and Development
+- [API Reference](https://docs.n8n.io/api/api-reference/)
+- [Creating Custom Nodes](https://docs.n8n.io/integrations/creating-nodes/)
+- [Node Development](https://docs.n8n.io/integrations/creating-nodes/build/)
+
+## Notes
+
+- This skill was automatically generated from official n8n documentation
+- Code examples use proper language tags for syntax highlighting
+- Examples are extracted from real-world patterns in the docs
+- Focus on practical, actionable patterns for immediate use
+
+## Updating
+
+To refresh this skill with updated documentation:
+1. Re-run the scraper with the same configuration
+2. The skill will be rebuilt with the latest information
+3. Review Quick Reference section for new examples
--- a/skills/n8n/plugin.json
+++ b/skills/n8n/plugin.json
@@ -0,0 +1,15 @@
+{
+  "name": "n8n",
+  "description": "A skill for working with n8n",
+  "version": "1.0.0",
+  "author": {
+    "name": "Tim Green",
+    "email": "rawveg@gmail.com"
+  },
+  "homepage": "https://github.com/rawveg/claude-skills-marketplace",
+  "repository": "https://github.com/rawveg/claude-skills-marketplace",
+  "license": "MIT",
+  "keywords": ["n8n", "n8n skill", "n8n skills", "Claude Skills", "Claude Skills Marketplace"],
+  "category": "productivity",
+  "strict": false
+}
--- a/skills/n8n/references/index.md
+++ b/skills/n8n/references/index.md
@@ -0,0 +1,7 @@
+# N8N Documentation Index
+
+## Categories
+
+### Llms-Txt
+**File:** `llms-txt.md`
+**Pages:** 1301
--- a/skills/n8n/references/llms-full.md
+++ b/skills/n8n/references/llms-full.md
--- a/skills/n8n/references/llms-txt.md
+++ b/skills/n8n/references/llms-txt.md
--- a/skills/n8n/references/llms.md
+++ b/skills/n8n/references/llms.md