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[Category:] 공부

숲 해설을 위한 영어 공부

Don’t use “the” with these words

Don’t use “the” with these words

No ‘the” when it’s on activity : I’m going to bed now We don’t use “the” when we describe everyday places and activities Use “the” when it’s a place or physical location : The school is on the corner. I’m in class now (activity) The class when on a trip (group of students) musical instruments : I’m playing the piano: I bought a piano Don’t use “the” with lakes : Lake Tahoe, Lake Michigan Use “the” with rivers : The…

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Agentic Context Engineering(ACE)

Agentic Context Engineering(ACE)

If traditional prompting is like writing a static cheat sheet before an exam, Agentic Context Engineering(ACE) is like maintaining a Github repository for prompts – one that evolves, branches, and merges over time, Instead of freezing a model’s context in place, ACE treats it as a living playbook that grows smarter with every experience. Think of context here not as a paragraph of instructions, but as a dynamic memory system – a continuously evolving notebook of strategies, mistakes, and best…

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Agentic AI vs. AI Agents

Agentic AI vs. AI Agents

AI Agents typically focus on executing predefined tasks efficiently, automating repetitive workflows. On the other hand, Agentic AI interprets goals, plans across tools, makes independent decisions, and adapts in real time – bridging the gap between automation and true intelligence. This difference shapes how business can reduce costs, boost efficiency, and create experiences that feel less like command and more like collaboration.

Prompt Engineering

Prompt Engineering

When developing AI agents, understanding prompt engineering is essential. Prompt engineering is the key to effectively working with LLMs. It involves crafting inputs that guide these sophisticated AI systems to generate accurate and relevant responses. Mstering skill ensures that developers can leverage the full potential of LLMs, making interactions with AI more productive and precise. There is a. lot of hype surrounding prompt engineering, with numerous videos, blogs, and articles claiming to reveal its “secrets.” However, it’s important to be…

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Action Blocks in MCP

Action Blocks in MCP

Encapsulating Thoughts and Intent Action blocks represent a model’s decision at a given point in its reasoning loop. Rather than producing only a final answer, the model under MCP generates intermediate actions that reflect its plan. Each action block contains structured metadata describing what the model intends to do next. This can include calling a tool, representing clarification, storing an observation, or generating final output. For example, an agent tasked with summarizing documents might produce this action block: This tells…

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About Memory in MCP

About Memory in MCP

Memory: Persistent Context Across Reasoning Cycles Memory in MCP serves as the persistent, structured storage that an agent can use to reference previous interactions, maintain state, or build context over time. Unlike traditional LLM memory, which is simulated by stuffing previous outputs into the next prompt, MCP memory is external, addressable, and queryable. Memory can include: Each memory object can be assigned an identifier and passed to the model as part of the context. The model can then reason over…

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The role of MessagesPlaceholder in LangChain.js

The role of MessagesPlaceholder in LangChain.js

The MessagesPlaceHolder in LangChain.js plays a crucial role in enabling dynamic and flexible construction of chat prompts by acting as a placeholder for a list of messages within a ChatPromptTemplate. Its primary functions are Dynamic Message Insertion It allows you to inject a list of BaseMessage objects (like HumanMessage, AIMessage, SystemMessage, etc) into a specific position within your chat prompt template during runtime. This is particularly useful for managing chat history, where the list of past messages needs to be…

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China’s Rare Earth Origin Story, Explained

China’s Rare Earth Origin Story, Explained

Low environmental standards helped China become the world’s low-cost producer of rare earths, but Beijing was also focused on helping the industry. 몇 달 전 중국이 희토류의 수출을 일시 중단할 때까지 대부분의 세계 지도자들은 희토류를 그리 중요하게 생각하지 않았다. 그러나 약 반 세기동안 중국 정부의 최고위급들은 이들 희토류에 대해 꾸준한 관심을 가져왔다. 마오쩌둥이 27년의 통치기간 동안 얼마만큼의 철과 스테인레스를 생산 할지에만 초점을 맞췄지 품질에는 크게 신경을 쓰지 않았다. 그 결과 업계의 요구를 충족시키지 못하는 저품질의 철과 스테인레스의 생산만 많아졌다. 1940년대…

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Langgraph – Edges

Langgraph – Edges

Edges define how the logic is routed and how the graph decides to stop. This is a big part of how your agents work and how different nodes communicate with each other. There are a few key types of edges: A node can have MULTIPLE outgoing edges. If a node has multiple out-going nodes, all of those destination nodes will be executed in parallel as a part of the next superstep.

LLM Based Agent

LLM Based Agent

“A little piece of advice. You see an agent, you do what we do. Run!” – Cypher to Neo in the movie, “The Matrix” When it comes to LLM-based agents, there is no universally accepted definition, but we can extend the philosophical definition to say that an agent is an intelligent(?) entity that leverages LLMs to solve complex tasks by interacting with the environment via a set of tools. Since LLMs possess good understanding, reasoning & generation capabilities, it makes…

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