GitHub - immortal71/langchain-study

Index

Quick Run
Launch Frontend UI
How to setup environment
How to launch/use assistants
Langchain Notes
ReAct Notes
RAG Notes
Reflection vs Self Reflection/"Reflexion"
Agentic AI Notes

Quick Run

For an enhanced learning experience, you can set-up Claude Desktop and ask it questions about the README or other repo implementations!

Click here to see how to set-up an MCP server that you can integrate with any MCP client!

Frontend Experience (Recommended!)

There's a beautiful frontend I have designed for ease of navigation using streamlit that you can access (or, you could skip using it and just use the CLI instead). Here's the steps to launch it: Run the following commands in a Python (>=3.12) environment:

pip install -e .
pip install tqdm
streamlit run frontend/_🙋🏽<200d>♂️_welcome.py

Expected Output

Environment Setup

Create a .env file at the project root with the following properties:

Sign into Groq (this is the inference endpoint provider/model provider default) and create an .env file with the key:
```
GROQ_API_KEY=<your_groq_api_key>
```

For tracing with langsmith, set-up a .env file at the project root that has the following keys:

LANGSMITH_TRACING=true
LANGSMITH_API_KEY=<your_langsmith_api_key>
LANGSMITH_PROJECT=langchain-study

To use the react/search agent, you must also sign up with Tavily and provide:
```
TAVILY_API_KEY=<your_tavily_api_key>
```
- The study assistant also routes to this agent for web searches.
Set the logging level using:
```
export LANGCHAIN_STUDY_LOG_LEVEL=DEBUG
```
The HR assistant can perform look-ups on a PINECONE Vector DB, to utilise this feature - provide your API KEY and index name like so:
```
PINECONE_API_KEY=<your_api_key>
PINECONE_INDEX_NAME=langchain-study
```
- For the study_assistant, the langchain docs are stored in a separate namespace within Pinecone.
- Effectively, three separate namespaces are created in the Pinecone index set in the .env file: "repo-readme-<<today_date_stamp_in_iso_format>>", "study-assistant-batch-<<today_date_stamp_in_iso_format>>" and "hr-policies-<<today_date_stamp_in_iso_format>>".

How to run and use assistants

HR Assitant

a basic HR assistant, for now - it can:

apply for time-off requests for "nimo@ibm.com"
explain company policy, sample query: "Can you tell me the company policy on data privacy?"

Run the following commands in a Python (>=3.12) environment:

pip install -e .

python -m assistants.hr_assistant.hr_policies_ingestor

python -m assistants.hr_assistant.main

Expected Output

Search Assistant

a ReAct seach agent with structured outputs, can perform summarization of search results, powered by TavilySearch

Run the following commands in a Python (>=3.12) environment:

pip install -e .
python -m assistants.search_assistant.main

Expected Output

Study Assistant

a study assistant with structured outputs, can perform the following operations:

help navigate the langchain-study repo ("how-to") instructions
help study langchain!
Note: If ingesting langchain documents leads to errors in the free tier, my langchain notes should provide some basic insight at a minimum.

Run the following commands in a Python (>=3.12) environment:

pip install -e .

pip install tqdm

python -m assistants.study_assistant.study_material_ingestor

python -m assistants.study_assistant.main

Expected Output

Langchain Notes

A langchain chain is a sequence of operations where the O/P of one step is the I/P to the next step.
- A "step" in a chain can be anything: an LLM call, some data transformation, a tool call, another chain, etc.
Most langchain components like langchain.prompts.PromptTemplate, etc. implement the Runnable interface.
- All Runnable types expose an invoke(..) method.
- Runnable types can be piped using LangChain Expression Language(LCEL) to define a RunnableSequence (this is a "chain"):
```
prompt_template = PromptTemplate(...)
llm = ChatOllama(..)

chain = prompt_template | llm
response = chain.invoke(input_variables: dict = {...})
```
  - In this example, the Runnable sequence comprises a PromptTemplate in the first step. The invoke(...) method implemented for a PromptTemplate type accepts a dictionary of input_variables to be rendered into the prompt.
  - Alternatively, this rendering of template variables can also be done directly by calling the format(..) method:
```
prompt_template_string = PromptTemplate(...).format(**input_variables: dict)
```
  - The invoke(...) method implementation for the PromptTemplate is defined in one of its parent interfaces called the BasePromptTemplate which initializes a RunnableConfig and returns a PromptValue (the formatted prompt).
  - You can also use the invoke(...) method directly:
```
prompt_template_string = PromptTemplate(...).invoke(input: dict = input_variables).to_string()
```
- A RunnableSequence type when "invoked" using the invoke(...) method:
  - accepts the args expected by the first Runnable in the sequence.
  - returns the value of the last Runnable type's invoke(...).
  - In the above example, the first Runnable is a PromptTemplate type which expects a dict of input_variables and, the last Runnable is a ChatOllama type which returns an AIMessage response object.
  - Langchain is able to adapt the O/P of one Runnable to the expected I/P format of the next in a RunnableSequence.
The langchain hub object offers access to community langchain resources like prompts, etc.
```
from langchain import hub
```
LangChain offers a create_react_agent(...) method which provides a clean interface for building LangChain ReAct agents.
```
from langchain.agents.react.agent import create_react_agent
```
- create_react_agent(...) returns a Runnable which is referred to as a "LangChain ReAct agent".
For actual execution of tool calls, langchain provides an AgentExecutor as the agent runtime.
```
from langchain.agents import AgentExecutor
```
For implementing tools in langchain, it offers a @tool decorator which can be imported like so:
```
from langchain_core.tools import tool

@tool
def multiply_two_integers(
    a: int,
    b: int,
) -> int:
    """
    Returns the result of a*b.
    """
    return a*b
```
- LangChain will extract a schema for this "tool" for agent use:
  - name
  - description
  - expected args
- The model itself doesn't execute a tool, this is done by the langchain backend. The model only produces the arguments need for the call.
The RunnableLambda wrapper allows you type-cast any Python function(usually a lambda function) into a langchain Runnable.
- Basically, it will make the invoke(..) method call available on that function.
- Since it can be "invoked": it can be chained into a RunnableSequence using LCEL.
```
from langchain_core.runnables import RunnableLambda
```

Markdown Document Handling

For chunking documents with markdown formatting, langchain offers some useful resources:
```
from langchain_text_splitters import (
    MarkdownHeaderTextSplitter
)
```
- A MarkdownHeaderTextSplitter is used in conjuction with some loading mechanism which preserves the original markdown formatting to read the document as a string.
- For example, you can use Python's built-in file handling:
```
with open(md_file_path, "r") as f:
    document: str = f.read()
```
- NOTE: These tools can be used to load a markdown file as a langchain Document but they do not preserve the original markdown formatting and hence, cannot be used in conjunction with the MarkdownHeaderTextSplitter however, could be useful:
```
from langchain_core.documents import Document
from langchain_community.document_loaders import UnstructuredMarkdownLoader

document_loader = UnstructuredMarkdownLoader(
    file_path=md_file_path,
    mode="single",
    # for chunking the document at this step, you can also pass the mode = "elements".
)
document: list[Document] = list(document_loader.lazy_load())
document_content: str = document[0].page_content # only 1 chunk (the entire document).
document_metadata: dict = document[0].metadata # only contains a "source" key which maps to the path this document was loaded from.
```
  - For mode="single": the entire document is loaded as-is without chunking (1 item in the list[Document]).
  - For mode="elements": the entire document is loaded as chunks, broken using the internal parsing logic into categories such as: Text, NarrativeText and UncategorizedText (multiple items in the list[Document]).
Once the document has been loaded, it can be split by the headers in the following manner:
```
# Step 1
# Initialize splitter
document_splitter = MarkdownHeaderTextSplitter(
    headers_to_split_on=[
            ("##", "Section"),
            ("###", "Policy"),
    ],
    strip_headers=False,
)
# Step 2
# Split document into chunks
chunked_document: list[Document] = document_splitter.split_text(document)
```
- The strip_headers flag can be used to control whether the actual header split on will be included in the .page_content field of the different Document chunks:
```
# when strip_headers = False
Chunk 1
### Policy 1 <-- this text is not included if strip_headers = True
....

Chunk 2
### Policy 2
....
```
- The name field of the list of tuples to split on is set as a key in the .metadata field of each Document chunk:
```
Chunk 1
{
    'Section': 'Header starting with ##',
    'Policy': 'Policy 1'
}
```
- In this case, the lowest "level" header has three hashtags: "###" therefore, len(chunked_documents) = number of headers at the level ###.
- Headers with a higher level (# and ##) are included in the first chunk (assuming the remaining document only has headers at the level ###).
For additional chunking, you can either use langchain_text_splitters.CharacterTextSplitter or alternatively, langchain_text_splitters.RecursiveCharacterTextSplitter(recommended) for more intelligent parsing of text; the RecursiveCharacterTextSplitter has stricter enforcement of the chunk_size since it uses fallback delimiters if a chunk exceeds the given limit.

ReAct architecture

A ReAct styled agent implements the following loop for query resolution:

Thought -> Action & Action Input(s) -> Observation -> Thought -> (...) -> Final Answer

Initially, "tool calling" was implemented through text-based prompting, for example:
```
You have access to the following tools:

{tools}

Use the following format:

Question: the problem you are trying to solve for.
Thought: your thought on the appropriate action.
Action: the recommended action, must be one of {tools}
Action Input: the input to be provided for executing the action
Observation: the result of the action
(this pattern can repeat N times)

When you have resolved the question:
    Thought: I now think I have a final answer
    Final Answer: the final answer to the question

Begin!

Question: {question}
Thought: {agent_scratch_pad}
```
- the Action and Action Input were then parsed by the system backend to finally execute the "tool call".
- The agent_scratch_pad is initially an empty string:
```
""
```
  - The agent_scratch_pad captures the context of the model's recommended Action, Action Input and Observation thus far.
  - It expands like so:
```
Action: <tool_name>
Action Input: <tool_args>
Observation: <tool_output>
(...)
Action: <tool_name>
Action Input: <tool_args>
Observation: <tool_output>
Thought:

# the `Thought:` is always an empty placeholder prompt appended after the last `Observation` (at the end).
```
  - So the prompt iself would go from: first iteration
```
<aforementioned ReAct instructions>

(...)

Begin!

Question: <user_query>
Thought:
```
    n-th iteration
```
<aforementioned ReAct instructions>

(...)

Begin!

Action: <tool_name>
Action Input: <tool_args>
Observation: <tool_output>
(...)
Action: <tool_name>
Action Input: <tool_args>
Observation: <tool_output>
Thought:
```
- To support structured LLM outputs, langchain provides output_parsers that work with pydantic data models to generate expected formats:
```
from langchain_core.output_parsers.pydantic import PydanticOutputParser

output_parser = PydanticOutputParser(
    pydantic_object=<your_data_model>
)
# this is only an output parser.

prompt_template_with_format_instructions = PromptTemplate(...).partial(
    <input_variable_used_as_placeholder_for_instructions_in_text_template>=output_parser.get_format_instructions()
)
# the expectation set by `get_format_instructions()` is: the LLM will generate an output in a JSON format
```
  - The .partial(<input_variable>=<variable_value>,...) is useful for returning a "partially formatted" PromptTemplate => this is useful when you have some variable values beforehand but not all.
  - REMEMBER: this will return a PromptTemplate while .format(...) returns a string.
- Using "pydantic parsing" in the aforementioned fashion is not favoured because: in this case, we are expecting the LLM to comply with the formatting requirements.
  - Depending on the model size (if a smaller model like gpt-3 is used), this might not always work and will often lead to parsing errors.
  - This is a prompt-level/text-based enforcement of the expected output format and not very robust. How to built the AgentExecutor from scratch?
  - This can be done using a simple while loop, expanding the {agent_scratchpad} with subsequent conversation turns and parsing the output at each agent step to execute tools.
  - Previously, you would have to supply a "Stop Token" like so:
```
llm = ChatOpenAI(
    **kwargs,
    stop=[
        "...",
        "\nObservation:", # for example
        "...", # can pass any number of "stop tokens"
    ]
)
```
    - The stop= argument defines a list of tokens at which point the LLM stops generating further text.
    - Setting this to "\nObservation:" will cause:
      ❌ Without stop sequence: Thought: I need to search for this Action: Wikipedia Action Input: "Python programming" Observation: Python is a high-level language... [HALLUCINATED!] Thought: Based on that... [reasoning based on made-up data] ✅ With stop=["\nObservation:"]: Thought: I need to search for this Action: Wikipedia Action Input: "Python programming" [STOPS HERE - agent executes tool] Observation: [REAL Wikipedia result inserted by framework] [Feed back to LLM for next iteration]
    - The "stop token" itself is not included in the response returned by the LLM; generation stops at the token just before it.
    - The problem with this approach was un-timely and unexpected parsing issues, which further supported the move to native-function calling.
  - The langchain framework would then parse the: "\nAction:" and "\nAction Input:" recommended by the LLM and then execute it to continue the ReAct loop.
    - Langchain offers built-in parsing which you can use to build your own ReAct loop; the parser will output either of these two objects based on the LLM's response:
      - AgentAction : if the model recommends an \nAction: with an \nAction Input:
      - AgentFinish : if the model declares that it knows the "final answer".
      In the backend, all of this is done through RegEx parsing.
      
      This is useful for individual agent step parsing viz a viz the final output parsing discussed so far.
The landscape has evolved now, modern LLMs support native function calling.
- As an extension to the above discussion of "text-based" tool-calling, there is now a more modern and favoured approach for models which support this feature:
```
llm = ChatGroq(model="openai/gpt-oss-120b")
structured_llm = llm.with_structured_output(
    <your_pydantic_data_model>
)
```
  - Models which support native function/tool calling can be chained with the .with_structured_output(..) call for formatting the response returned.
  - Now, you can:
    - remove the explicit "formatting_instructions" (saving input tokens) passed via text to the "regular" llm.
    - use the structured_llm to format the output response using the simple text response returned by the "regular" llm.
  - This is also preferred because:
    - easier to use (plug and play parsing)
    - higher reliability
    - all modern state of the art models support native function calling
  - .with_structured_output(..) falls back to using output parsers when native function calling isn't supported by the model!
- Having native tool calling support implies that the model provider offers a tools= argument through their own API.
- For production-grade scaling of LLM applications, this is the recommended practice: rely on the model provider to give you structured JSON outputs through their native function calling capabilities.
- The only drawback of using a vendor-provided function calling capability is that the reasoning process of the LLM is a black box however, the tool selection process is considered reliable enough to depend on.
  - The models are fine-tuned by the vendors to be able to select the right tool for a task.
  - However the reasoning process itself is a blackbox from a debugging perspective.
  - For fine-grained control: use Chain of Thought prompting with few-shot examples.
  - If you want the vendor to do the "heavy lifting" of tool selection then use native function calling.
  - The LLM doesn't actually make the tool call. The onus is still on you to take the args returned by the vendor and actually execute the tool.
- langchain provides a unified interface for using vendor provided native tool calling capabilities of LLMs.
  - ChatModel.bind_tools() to attach tool definitions to model calls.
  - Then the AIMessage returned by the model would have an AIMessage.tool_calls which is an attribute for easily accessing the tool calls the model has decided to make.

"Agents" in the langchain ecosystem have evolved in the following manner:

Text-based tool calling through prompt itself ->
Native function call supported LLMs as agents ->
LangGraph ReAct agents for production demands.

Chain of Thought Prompting

The first evolution of prompt engineering came from understanding that LLMs gave different (showed better fitting outputs for a use-case) through selection of an appropriate number of examples:
- Zero-shot prompting (no examples)
```
User: Describe a natural scene for me
```
- One-shot prompting (1 example)
```
User: Describe a natural scene for me, here are some adjectives to use in your description:
    vivid, sunny, fresh
```
- Few-shot prompting (> 1 example)

Then came CoT Prompting which proved the hypothesis that typing out the "reasoning" in a question-answer style in the query helped better/more accurate outputs:

Zero-shot CoT prompting:

User: How would you learn maths from scratch?
Let's think through this step by step.

Few-shot CoT prompting:

User: Q: How would you learn math from scratch?
A: I would hire a tutor, go to university and pursue a degree in maths.

Q: How would you learn english from scratch?
A: I would converse in english more often, read more literature and study etymology so I can correlate english origins to my native tongue.

Q: How would you learn history from scratch?
A:

Combining CoT Prompting + the ability to execute/act on that reasoning lead to the ReAct architecture, thus using LLMs as the "reasoning engine".

RAG Notes

Problem Statement: When the answer to our question exists inside a specific part of a large document, we need an effective mechanism for breaking up the document into chunks.
- The entire document as a whole is too big to fit within the token limit.
- Using multiple API calls to send chunked versions of the document in sequence is also unnecessary since the information needed is condensed in a specific part.
- There is a solution to this problem and it is called "retrieval augmentation".
You can use an embedding model to generate vector embeddings out of a document and store it in a vector database.
- A user query on the document like:
```
Tell me what happens in page 546 of book XYZ?
```
  - is also converted into an embedding vector and stored in the database.
  - now, you can calculate the nearest neighbours of the user query to get relevant chunks of the document stored in the DB.
- a good embedding model will be able to organize the vectors in the vector space so that semantically similar vectors are close to each other.
- now, we can simply add the relevant chunks of the document as "context" and send it to our LLM.

Reflection vs Reflexion

Reflection Architecture

A reflection agent is a heavy duty solution for enhancing the quality of LLM responses.
How it works:
- A "generator" agent gets a user query -> makes a decision:
  - tool call?
  - generate a response in natural language?
- When the generator agent is ready (after possible tool calls) to output a response -> this is piped to a "critique".
- The critique makes a decision:
  - is it approved? -> display to the user!
  - can it be improved? -> get criticism -> feed back to the generator.

The graph below shows a reflection cycle that lasts 3 improvement interations (this can be controlled programmatically using LangGraph or, left up to the LLM's decision making).

graph TB
    Start([User Query]) --> Gen1[Generator AgentFirst Draft]
    
    Gen1 --> Draft1{Draft Response 1}
    
    Draft1 --> Critic1[Critic AgentReviews Draft 1]
    
    Critic1 --> Eval1{Quality Check}
    
    Eval1 -->|Not ApprovedIteration 1| Feedback1[Generate Critique:'Too technical, lacks examples']
    
    Feedback1 --> Gen2[Generator AgentRefines with Feedback]
    
    Gen2 --> Draft2{Draft Response 2}
    
    Draft2 --> Critic2[Critic AgentReviews Draft 2]
    
    Critic2 --> Eval2{Quality Check}
    
    Eval2 -->|Not ApprovedIteration 2| Feedback2[Generate Critique:'Better, but needs sources']
    
    Feedback2 --> Gen3[Generator AgentFinal Refinement]
    
    Gen3 --> Draft3{Draft Response 3}
    
    Draft3 --> Critic3[Critic AgentFinal Review]
    
    Critic3 --> Eval3{Quality Check}
    
    Eval3 -->|Approved OR Max Iterations|Output([Final Output to User])
    
    Eval1 -.->|If Approved Early| Output
    Eval2 -.->|If Approved Early| Output
    
    style Gen1 fill:#e1f5ff
    style Gen2 fill:#e1f5ff
    style Gen3 fill:#e1f5ff
    style Critic1 fill:#fff4e1
    style Critic2 fill:#fff4e1
    style Critic3 fill:#fff4e1
    style Output fill:#d4edda
    style Start fill:#f8f9fa
    
    classDef iteration fill:#ffe1e1
    class Feedback1,Feedback2 iteration
    
    note2[🔄 Iteration Loop:Each cycle refines based on immediate critic feedback]
    note3[⚠️ Cost: 6-12 LLM calls for 3-6 iterations]

Key Characteristics:

2 LLM calls per iteration
No cross-session memory
Expensive but high quality
Context limited to current conversation

Reflexion/Self-Reflection Architecture

Here, we have a persistent "critique bank" (typically, a vector index which houses critcisms to the "generator" responses).
The prompt for the "generator" has a special section where the criticism is rendered in:

REFLEXION_PROMPT = """You are an assistant that learns from past mistakes.

PAST REFLECTIONS (learn from these):
{reflections}
---

Current Task: {user_query}

Based on past failures above, proceed carefully and avoid similar mistakes."""

The vector index is queried at every user turn and semantically similar/relevant "reflections" are used to populate the PAST REFLECTIONS in the prompt!
In this case, there's a second component: the "Self-Reflection" LLM.
Unlike the critic in Reflection architecture (which reviews EVERY response), the Self-Reflection LLM is only triggered when the Evaluator detects a failure.
When triggered, it analyzes WHY the failure occurred and generates a verbal reflection for future reference.
The "reflection" is stored in the vector index and becomes available in future user interactions (not the current turn).
The "reflection" is only available in the next turn/next time the user interacts instead of an immediate feedback cycle like in the reflection architecture!

Goal: Learn from past failures across multiple user interactions to avoid repeating mistakes.

graph TB
    subgraph Episode1[Episode 1: Initial Failure]
        Start1([User Query 1:'How to use LangGraph?']) --> Gen1[Generator Agent Attempts Response]
        Gen1 --> Output1[Response:'LangGraph is for...HALLUCINATED CONTENT']
        Output1 --> Eval1{Automated Evaluator Ground Truth Check}
        Eval1 -->|❌ Failure Detected| Reflect1[Self-Reflecting LLM]
        Reflect1 --> Analysis1["Verbal Reflection:'I hallucinated because I didn'tsearch documentation. Next time,ALWAYS use doc search tool firstfor technical framework questions.'"]
        Analysis1 --> Store1[(Vector DatabaseReflection Storage)]
    end
    
    subgraph Memory[Persistent Memory Layer]
        Store1 --> VectorDB[(Reflection Index:
        • Task patterns
        • Failure modes
        • Learned lessons
        • Corrective strategies)]
    end
    
    subgraph Episode2[Episode 2: Learned Behavior]
        Start2([User Query 2:'Explain LangGraph nodes']) --> Retrieve[Semantic Search:Find Similar Past Failures]
        VectorDB -.->|Retrieve Relevant Reflections| Retrieve
        Retrieve --> Context["Augmented Prompt:PAST REFLECTIONS:'For framework questions,search docs first...'CURRENT TASK:'Explain LangGraph nodes'"]
        Context --> Gen2[Generator Agent WITH Past Lessons]
        Gen2 --> Tool[🔧 Uses Doc Search Tool Learned from Reflection!]
        Tool --> Output2[Response:Accurate, grounded in docs ✓]
        Output2 --> Eval2{Automated Evaluator}
        Eval2 -->|✅ Success!| NoReflect[No New Reflection Needed]
    end
    
    Store1 -.->|Persists Across Sessions| VectorDB
    
    style Gen1 fill:#ffe1e1
    style Output1 fill:#ffe1e1
    style Reflect1 fill:#fff4e1
    style Analysis1 fill:#fff4e1
    style Store1 fill:#e1e8ff
    style VectorDB fill:#e1e8ff
    style Gen2 fill:#d4edda
    style Output2 fill:#d4edda
    style Tool fill:#d4edda
    style Start1 fill:#f8f9fa
    style Start2 fill:#f8f9fa
    
    note2[🧠 Memory Persists:Reflections stored in vector DB,retrieved by semantic similarity]
    note3[⚡ Efficiency: 1 extra LLM callonly on failures, then benefitcompounds over time]

Key Characteristics:

Single-pass per episode
Learns across sessions
Builds institutional memory
Amortized cost improvement
The Automated Evaluator can be:
- Unit tests (for code generation tasks)
- Ground truth comparison (for factual questions)
- Reward signal (for RL-style tasks)
- Human feedback (less common, but possible)
- Key point: It's not necessarily an LLM - it's any success/failure check.

Agentic AI Notes

Providing links to resources (real and accurate references) for answers is called "grounding".
- Grounding an agent is important for building trust with the customer.
- This helps validate that the answer is not a model hallucination.

Name		Name	Last commit message	Last commit date
.github		.github
assistants		assistants
frontend		frontend
mcp		mcp
output		output
.gitignore		.gitignore
.python-version		.python-version
LICENSE		LICENSE
README.md		README.md
pyproject.toml		pyproject.toml

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Frontend Experience (Recommended!)

Expected Output

Environment Setup

How to run and use assistants

HR Assitant

Expected Output

Search Assistant

Expected Output

Study Assistant

Expected Output

Langchain Notes

Markdown Document Handling

ReAct architecture

Chain of Thought Prompting

RAG Notes

Reflection vs Reflexion

Reflection Architecture

Reflexion/Self-Reflection Architecture

Agentic AI Notes

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Frontend Experience (Recommended!)

Expected Output

Environment Setup

How to run and use assistants

HR Assitant

Expected Output

Search Assistant

Expected Output

Study Assistant

Expected Output

Langchain Notes

Markdown Document Handling

ReAct architecture

Chain of Thought Prompting

RAG Notes

Reflection vs Reflexion

Reflection Architecture

Reflexion/Self-Reflection Architecture

Agentic AI Notes

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