Add Skill: langgraph-multi-agent-sequential

Extracted from: https://github.com/omerbsezer/Fast-LLM-Agent-MCP.git
Score: 1.0

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

@@ -1,67 +0,0 @@
----
-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

@@ -1,6 +0,0 @@
-# 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

@@ -1,10 +0,0 @@
-# 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

@@ -1,33 +0,0 @@
-{
-  "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/langgraph-multi-agent-sequential/SKILL.md

@@ -0,0 +1,99 @@
+---
+name: langgraph-multi-agent-sequential
+version: 1.0.0
+description: Orchestrate a sequence of specialized agents to perform multi-step tasks
+  like research, data processing, and final output generation
+inputs:
+- BedrockModel with temperature=0.3, top_p=0.8
+- Researcher agent with system prompt for destination research (places, history, accommodations,
+  food, web pages)
+- Travel Guide Generator agent with system prompt for structuring travel guides into
+  labeled sections
+- Writer agent with system prompt for formatting professional client responses
+steps:
+- Researcher agent gathers raw destination facts (top 5 attractions, historical facts,
+  best areas, local foods, suggested web pages) using BedrockModel
+- Travel Guide Generator agent structures the raw facts into a comprehensive travel
+  guide with clearly labeled sections
+- Writer agent formats the structured guide into a professional client-facing response
+  with the full guide and highlighted web pages
+outputs:
+- Raw research data (JSON string containing destination facts and categories)
+- Structured travel guide content (markdown with sections for attractions, history,
+  accommodations, cuisine, and web pages)
+- Final client response (formatted travel guide ready for delivery)
+tags: []
+metadata:
+  source_repo: https://github.com/omerbsezer/Fast-LLM-Agent-MCP.git
+  extracted_at: ''
+  confidence: 0.95
+---
+
+# langgraph-multi-agent-sequential
+
+Orchestrate a sequence of specialized agents to perform multi-step tasks like research, data processing, and final output generation
+
+## Setup
+
+**Dependencies:**
+
+```text
+pip install langchain langgraph bedrock-model pydantic
+```
+
+**Setup steps:**
+
+1. Install langchain and langgraph packages
+1. Configure BedrockModel with temperature=0.3 and top_p=0.8
+1. Create three Agent instances with appropriate system prompts and tools
+1. Deploy the FastAPI server with the LangGraph application
+
+## Key Files
+
+- `agents/langchain_langgraph/08-langgraph-multi-agents-sequential-pattern/agent.py`
+- `agents/langchain_langgraph/08-langgraph-multi-agents-sequential-pattern/app.py`
+
+## Steps
+
+1. Researcher agent gathers raw destination facts (top 5 attractions, historical facts, best areas, local foods, suggested web pages) using BedrockModel
+2. Travel Guide Generator agent structures the raw facts into a comprehensive travel guide with clearly labeled sections
+3. Writer agent formats the structured guide into a professional client-facing response with the full guide and highlighted web pages
+
+## Implementation Details
+
+```python
+Researcher agent with system_prompt for destination research and tools=[calculator, current_time]
+```
+
+```python
+Travel Guide Generator agent with system_prompt requiring structured sections (attractions, history, accommodations, cuisine, web pages)
+```
+
+```python
+Writer agent with system_prompt for client-facing response formatting
+```
+
+## Inputs
+
+- BedrockModel with temperature=0.3, top_p=0.8
+- Researcher agent with system prompt for destination research (places, history, accommodations, food, web pages)
+- Travel Guide Generator agent with system prompt for structuring travel guides into labeled sections
+- Writer agent with system prompt for formatting professional client responses
+
+## Outputs
+
+- Raw research data (JSON string containing destination facts and categories)
+- Structured travel guide content (markdown with sections for attractions, history, accommodations, cuisine, and web pages)
+- Final client response (formatted travel guide ready for delivery)
+
+## Failure Modes
+
+- Researcher agent fails to retrieve sufficient information, causing downstream agents to receive incomplete or empty data
+- Travel Guide Generator fails to structure data properly, resulting in unorganized or malformed output
+- Writer agent fails to format the final response correctly, producing garbled or incomplete output
+- Model timeouts or errors in any agent step causing the entire pipeline to fail
+
+## Source
+
+Extracted from: [https://github.com/omerbsezer/Fast-LLM-Agent-MCP.git](https://github.com/omerbsezer/Fast-LLM-Agent-MCP.git)
+Confidence: 0.95

skills/langgraph-multi-agent-sequential/commands.md

@@ -0,0 +1,6 @@
+# Commands: langgraph-multi-agent-sequential
+
+## Available Commands
+
+- `/skill langgraph-multi-agent-sequential` — Load this skill
+- `/run langgraph-multi-agent-sequential` — Execute workflow

skills/langgraph-multi-agent-sequential/examples.md

@@ -0,0 +1,10 @@
+# Examples: langgraph-multi-agent-sequential
+
+## Usage Example
+
+```python
+# How to use this skill
+# Inputs: BedrockModel with temperature=0.3, top_p=0.8, Researcher agent with system prompt for destination research (places, history, accommodations, food, web pages), Travel Guide Generator agent with system prompt for structuring travel guides into labeled sections, Writer agent with system prompt for formatting professional client responses
+# Process: Researcher agent gathers raw destination facts (top 5 attractions, historical facts, best areas, local foods, suggested web pages) using BedrockModel → Travel Guide Generator agent structures the raw facts into a comprehensive travel guide with clearly labeled sections → Writer agent formats the structured guide into a professional client-facing response with the full guide and highlighted web pages
+# Outputs: Raw research data (JSON string containing destination facts and categories), Structured travel guide content (markdown with sections for attractions, history, accommodations, cuisine, and web pages), Final client response (formatted travel guide ready for delivery)
+```

skills/langgraph-multi-agent-sequential/metadata.json

@@ -0,0 +1,31 @@
+{
+  "name": "langgraph-multi-agent-sequential",
+  "version": "1.0.0",
+  "goal": "Orchestrate a sequence of specialized agents to perform multi-step tasks like research, data processing, and final output generation",
+  "inputs": [
+    "BedrockModel with temperature=0.3, top_p=0.8",
+    "Researcher agent with system prompt for destination research (places, history, accommodations, food, web pages)",
+    "Travel Guide Generator agent with system prompt for structuring travel guides into labeled sections",
+    "Writer agent with system prompt for formatting professional client responses"
+  ],
+  "steps": [
+    "Researcher agent gathers raw destination facts (top 5 attractions, historical facts, best areas, local foods, suggested web pages) using BedrockModel",
+    "Travel Guide Generator agent structures the raw facts into a comprehensive travel guide with clearly labeled sections",
+    "Writer agent formats the structured guide into a professional client-facing response with the full guide and highlighted web pages"
+  ],
+  "outputs": [
+    "Raw research data (JSON string containing destination facts and categories)",
+    "Structured travel guide content (markdown with sections for attractions, history, accommodations, cuisine, and web pages)",
+    "Final client response (formatted travel guide ready for delivery)"
+  ],
+  "failure_modes": [
+    "Researcher agent fails to retrieve sufficient information, causing downstream agents to receive incomplete or empty data",
+    "Travel Guide Generator fails to structure data properly, resulting in unorganized or malformed output",
+    "Writer agent fails to format the final response correctly, producing garbled or incomplete output",
+    "Model timeouts or errors in any agent step causing the entire pipeline to fail"
+  ],
+  "confidence": 0.95,
+  "explanation": "This workflow demonstrates a reusable LangGraph pattern where three specialized agents work sequentially: a Researcher agent gathers raw destination facts, a Travel Guide Generator agent structures those facts into a travel guide, and a Writer agent formats the final output for clients. The pattern is modular and can be adapted to other multi-step tasks by swapping agent roles and prompts while maintaining the same pipeline structure.",
+  "source_repo": "https://github.com/omerbsezer/Fast-LLM-Agent-MCP.git",
+  "score": 1.0
+}

skills/langgraph-multi-agent-sequential/tests.md

@@ -1,4 +1,4 @@
-# Tests: blacknode-text-concatenation-workflow
+# Tests: langgraph-multi-agent-sequential
 
 ## Test Checklist