Add Skill: blacknode-text-concatenation-workflow

Extracted from: https://github.com/temiroff/Blacknode.git
Score: 1.0

skills/blacknode-text-concatenation-workflow/SKILL.md

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+---
+name: blacknode-text-concatenation-workflow
+version: 1.0.0
+description: Concatenate two text strings using a Blacknode graph of Text, Concat,
+  and Output nodes.
+inputs:
+- 'text_a: string'
+- 'text_b: string'
+steps:
+- Initialize a Blacknode Graph object.
+- Add a Text node with parameter value set to text_a.
+- Add a second Text node with parameter value set to text_b.
+- Add a Concat node (no parameters required).
+- Add an Output node (no parameters required).
+- Connect the 'value' output port of the first Text node to the 'a' input port of
+  the Concat node.
+- Connect the 'value' output port of the second Text node to the 'b' input port of
+  the Concat node.
+- Connect the 'value' output port of the Concat node to the 'value' input port of
+  the Output node.
+- Evaluate the graph by cooking the Output node's 'value' port to obtain the concatenated
+  result.
+outputs:
+- 'concatenated_text: string'
+tags: []
+metadata:
+  source_repo: https://github.com/temiroff/Blacknode.git
+  extracted_at: ''
+  confidence: 0.95
+---
+
+# blacknode-text-concatenation-workflow
+
+Concatenate two text strings using a Blacknode graph of Text, Concat, and Output nodes.
+
+## Steps
+
+1. Initialize a Blacknode Graph object.
+2. Add a Text node with parameter value set to text_a.
+3. Add a second Text node with parameter value set to text_b.
+4. Add a Concat node (no parameters required).
+5. Add an Output node (no parameters required).
+6. Connect the 'value' output port of the first Text node to the 'a' input port of the Concat node.
+7. Connect the 'value' output port of the second Text node to the 'b' input port of the Concat node.
+8. Connect the 'value' output port of the Concat node to the 'value' input port of the Output node.
+9. Evaluate the graph by cooking the Output node's 'value' port to obtain the concatenated result.
+
+## Inputs
+
+- text_a: string
+- text_b: string
+
+## Outputs
+
+- concatenated_text: string
+
+## Failure Modes
+
+- Node types 'Text', 'Concat', or 'Output' not registered in Blacknode runtime
+- Port name mismatches during edge creation
+- Missing input values causing empty concatenation
+- Graph evaluation error if cycles or disconnected required ports
+
+## Source
+
+Extracted from: [https://github.com/temiroff/Blacknode.git](https://github.com/temiroff/Blacknode.git)
+Confidence: 0.95

skills/blacknode-text-concatenation-workflow/commands.md

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+# Commands: blacknode-text-concatenation-workflow
+
+## Available Commands
+
+- `/skill blacknode-text-concatenation-workflow` — Load this skill
+- `/run blacknode-text-concatenation-workflow` — Execute workflow

skills/blacknode-text-concatenation-workflow/examples.md

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+# Examples: blacknode-text-concatenation-workflow
+
+## Usage Example
+
+```python
+# How to use this skill
+# Inputs: text_a: string, text_b: string
+# Process: Initialize a Blacknode Graph object. → Add a Text node with parameter value set to text_a. → Add a second Text node with parameter value set to text_b.
+# Outputs: concatenated_text: string
+```

skills/blacknode-text-concatenation-workflow/metadata.json

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+{
+  "name": "blacknode-text-concatenation-workflow",
+  "version": "1.0.0",
+  "goal": "Concatenate two text strings using a Blacknode graph of Text, Concat, and Output nodes.",
+  "inputs": [
+    "text_a: string",
+    "text_b: string"
+  ],
+  "steps": [
+    "Initialize a Blacknode Graph object.",
+    "Add a Text node with parameter value set to text_a.",
+    "Add a second Text node with parameter value set to text_b.",
+    "Add a Concat node (no parameters required).",
+    "Add an Output node (no parameters required).",
+    "Connect the 'value' output port of the first Text node to the 'a' input port of the Concat node.",
+    "Connect the 'value' output port of the second Text node to the 'b' input port of the Concat node.",
+    "Connect the 'value' output port of the Concat node to the 'value' input port of the Output node.",
+    "Evaluate the graph by cooking the Output node's 'value' port to obtain the concatenated result."
+  ],
+  "outputs": [
+    "concatenated_text: string"
+  ],
+  "failure_modes": [
+    "Node types 'Text', 'Concat', or 'Output' not registered in Blacknode runtime",
+    "Port name mismatches during edge creation",
+    "Missing input values causing empty concatenation",
+    "Graph evaluation error if cycles or disconnected required ports"
+  ],
+  "confidence": 0.95,
+  "explanation": "Extracted from examples/converted_text_pipeline.py and referenced templates/text-pipeline.json in the Blacknode repo. This workflow is a foundational, dependency-free pattern for building directed graphs of typed nodes and is applicable to any simple data combination task.",
+  "source_repo": "https://github.com/temiroff/Blacknode.git",
+  "score": 1.0
+}

skills/blacknode-text-concatenation-workflow/tests.md

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+# Tests: blacknode-text-concatenation-workflow
+
+## Test Checklist
+
+- [ ] Workflow has at least 3 steps
+- [ ] All inputs are defined
+- [ ] All outputs are defined
+- [ ] Failure modes are documented
+- [ ] Skill can be loaded without errors