Wu Shixiong's Large Model Academy
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Wu Shixiong's Large Model Academy

We continuously share large‑model know‑how, helping you master core skills—LLM, RAG, fine‑tuning, deployment—from zero to job offer, tailored for career‑switchers, autumn recruiters, and those seeking stable large‑model positions.

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Recent Articles

Latest from Wu Shixiong's Large Model Academy

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Wu Shixiong's Large Model Academy
Wu Shixiong's Large Model Academy
Jul 29, 2026 · Information Security

Why Claude Code Still Needs a Sandbox Even with Auto Mode

Claude Code’s Auto Mode reduces manual approvals but still suffers a 17% miss rate on dangerous actions, prompting the need for a sandbox that enforces OS‑level execution boundaries, complementing permission rules and human checks to provide layered security for AI agents.

Auto ModeClaude CodePermission Rules
0 likes · 11 min read
Why Claude Code Still Needs a Sandbox Even with Auto Mode
Wu Shixiong's Large Model Academy
Wu Shixiong's Large Model Academy
Jul 28, 2026 · Artificial Intelligence

Why Splitting a Task into 5 Subagents Can Be Slower Than a Single Agent

The article explains that parallelizing a task across five Claude Code subagents often yields no speedup—or even slowdown—because true parallel gains depend on independent task parts, while four overheads (re‑learning context, dependency chains, shared file conflicts, and single‑point aggregation) can dominate the runtime.

Amdahl's LawClaude CodeParallelism
0 likes · 16 min read
Why Splitting a Task into 5 Subagents Can Be Slower Than a Single Agent
Wu Shixiong's Large Model Academy
Wu Shixiong's Large Model Academy
Jul 23, 2026 · Artificial Intelligence

How to Prevent RAG from Hallucinating When No Answer Exists – Beyond Simple Similarity Thresholds

The article explains why a plain similarity‑threshold check cannot reliably stop Retrieval‑Augmented Generation from fabricating answers, introduces a four‑stage evidence‑control framework, details how to calibrate thresholds with balanced positive and negative samples, and outlines concrete actions for handling insufficient evidence.

HallucinationLLMRAG
0 likes · 21 min read
How to Prevent RAG from Hallucinating When No Answer Exists – Beyond Simple Similarity Thresholds
Wu Shixiong's Large Model Academy
Wu Shixiong's Large Model Academy
Jul 22, 2026 · Artificial Intelligence

How to Handle Long Conversation History: Beyond Full Prompt or Recent Rounds

The article explains that effective conversation memory for LLMs requires classifying information into static knowledge, short‑term context, and long‑term memory, defining a full lifecycle for each entry, and implementing strict storage, retrieval, update, and deletion policies rather than simply concatenating all history or keeping only the latest turns.

LLMRAGconversation memory
0 likes · 24 min read
How to Handle Long Conversation History: Beyond Full Prompt or Recent Rounds
Wu Shixiong's Large Model Academy
Wu Shixiong's Large Model Academy
Jul 21, 2026 · Artificial Intelligence

How to Decompose a Production‑Ready RAG System for Interview Success

The article outlines a production‑ready RAG architecture by separating offline ingestion and online query pipelines, detailing nine ingestion steps, online request flow, data storage responsibilities, failure‑handling, monitoring, and acceptance criteria, all illustrated with concrete examples and traceable state machines.

RAGVersioningfailure handling
0 likes · 29 min read
How to Decompose a Production‑Ready RAG System for Interview Success
Wu Shixiong's Large Model Academy
Wu Shixiong's Large Model Academy
Jul 3, 2026 · Artificial Intelligence

Deep Research Series: 12 Articles From the Basic Loop to the First Training Review

This article reorganizes a 12‑part Deep Research Agent series into a logical learning path, summarizing each part’s problem, key solutions, and practical takeaways—from building a runnable loop and handling tool failures to data construction, context management, and training evaluation.

Context ManagementDeep ResearchInference Optimization
0 likes · 12 min read
Deep Research Series: 12 Articles From the Basic Loop to the First Training Review
Wu Shixiong's Large Model Academy
Wu Shixiong's Large Model Academy
Jul 2, 2026 · Artificial Intelligence

Is Changing Session, Skill, or Model the Same? Why Claude Code’s Self‑Review Fails

The article explains why Claude Code’s self‑review is inherently unreliable and distinguishes four distinct remedies—starting a new session, swapping a review Skill, changing the underlying model, and using Sub‑Agent or Worktree isolation—each solving a different problem and none interchangeable, then outlines a risk‑based workflow for AI‑assisted code review.

AIClaudeSession
0 likes · 12 min read
Is Changing Session, Skill, or Model the Same? Why Claude Code’s Self‑Review Fails
Wu Shixiong's Large Model Academy
Wu Shixiong's Large Model Academy
Jun 30, 2026 · Artificial Intelligence

Why Claude Code Seems to Forget: The Hidden Auto‑Compact Mechanism Explained

The article demystifies Claude Code's auto‑compact feature, showing how context limits trigger automatic summarization that discards most historic data, which parts survive compression, and practical strategies—including file persistence, directive‑based compaction, child agents, and proactive clearing—to keep critical information alive during long sessions and interview discussions.

Claude CodeContext Managementauto-compact
0 likes · 20 min read
Why Claude Code Seems to Forget: The Hidden Auto‑Compact Mechanism Explained
Wu Shixiong's Large Model Academy
Wu Shixiong's Large Model Academy
Jun 29, 2026 · Artificial Intelligence

Why Adding an MCP Server to Claude Code Isn’t Just a Simple Plug‑In (Interview Answer Scores 60)

The article explains Claude Code's Model Context Protocol (MCP), how to connect external servers, the hidden costs and trust implications, the tool‑search lazy‑loading mechanism that prevents context overload, and the three security risks you must manage, all illustrated with real‑world examples and a four‑step interview answer.

AI integrationClaude CodeMCP
0 likes · 24 min read
Why Adding an MCP Server to Claude Code Isn’t Just a Simple Plug‑In (Interview Answer Scores 60)