Add Skill: text-concatenation

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

skills/text-concatenation/SKILL.md

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+---
+name: text-concatenation
+version: 1.0.0
+description: Concatenate two text inputs using Blacknode node graph
+inputs:
+- text_a
+- text_b
+steps:
+- Create a Blacknode Graph instance
+- Add a Text node with param value set to text_a
+- Add a second Text node with param value set to text_b
+- Add a Concat node that accepts inputs 'a' and 'b' and outputs 'value'
+- Add an Output node with input port 'value'
+- Connect first Text node 'value' port to Concat 'a' port
+- Connect second Text node 'value' port to Concat 'b' port
+- Connect Concat 'value' port to Output 'value' port
+- Invoke graph cook on Output 'value' to evaluate and return result
+outputs:
+- concatenated_text
+tags: []
+metadata:
+  source_repo: https://github.com/temiroff/Blacknode.git
+  extracted_at: ''
+  confidence: 0.9
+---
+
+# text-concatenation
+
+Concatenate two text inputs using Blacknode node graph
+
+## Steps
+
+1. Create a Blacknode Graph instance
+2. Add a Text node with param value set to text_a
+3. Add a second Text node with param value set to text_b
+4. Add a Concat node that accepts inputs 'a' and 'b' and outputs 'value'
+5. Add an Output node with input port 'value'
+6. Connect first Text node 'value' port to Concat 'a' port
+7. Connect second Text node 'value' port to Concat 'b' port
+8. Connect Concat 'value' port to Output 'value' port
+9. Invoke graph cook on Output 'value' to evaluate and return result
+
+## Inputs
+
+- text_a
+- text_b
+
+## Outputs
+
+- concatenated_text
+
+## Failure Modes
+
+- Port name mismatch causes connection error
+- Missing runtime or graph not initialized
+- Cook on nonexistent node returns error
+
+## Source
+
+Extracted from: [https://github.com/temiroff/Blacknode.git](https://github.com/temiroff/Blacknode.git)
+Confidence: 0.9

skills/text-concatenation/commands.md

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

skills/text-concatenation/examples.md

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+# Examples: text-concatenation
+
+## Usage Example
+
+```python
+# How to use this skill
+# Inputs: text_a, text_b
+# Process: Create a Blacknode Graph instance → Add a Text node with param value set to text_a → Add a second Text node with param value set to text_b
+# Outputs: concatenated_text
+```

skills/text-concatenation/metadata.json

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+{
+  "name": "text-concatenation",
+  "version": "1.0.0",
+  "goal": "Concatenate two text inputs using Blacknode node graph",
+  "inputs": [
+    "text_a",
+    "text_b"
+  ],
+  "steps": [
+    "Create a Blacknode Graph instance",
+    "Add a Text node with param value set to text_a",
+    "Add a second Text node with param value set to text_b",
+    "Add a Concat node that accepts inputs 'a' and 'b' and outputs 'value'",
+    "Add an Output node with input port 'value'",
+    "Connect first Text node 'value' port to Concat 'a' port",
+    "Connect second Text node 'value' port to Concat 'b' port",
+    "Connect Concat 'value' port to Output 'value' port",
+    "Invoke graph cook on Output 'value' to evaluate and return result"
+  ],
+  "outputs": [
+    "concatenated_text"
+  ],
+  "failure_modes": [
+    "Port name mismatch causes connection error",
+    "Missing runtime or graph not initialized",
+    "Cook on nonexistent node returns error"
+  ],
+  "confidence": 0.9,
+  "explanation": "The repo contains example converted workflows; converted_text_pipeline.py demonstrates a simple reusable pattern of two source nodes feeding a concatenation node into an output, applicable to any string joining task in Blacknode.",
+  "source_repo": "https://github.com/temiroff/Blacknode.git",
+  "score": 1.0
+}

skills/text-concatenation/tests.md

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+# Tests: text-concatenation
+
+## 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