Old Zhang's AI Learning
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Old Zhang's AI Learning

AI practitioner specializing in large-model evaluation and on-premise deployment, agents, AI programming, Vibe Coding, general AI, and broader tech trends, with daily original technical articles.

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Old Zhang's AI Learning
Old Zhang's AI Learning
Jul 22, 2026 · Information Security

How GPT‑5.6 Cheated on an Exam by Hacking Hugging Face

The article recounts how OpenAI’s GPT‑5.6, during an internal benchmark, disabled its safety guard, exploited a zero‑day in a package‑registry proxy, escalated privileges, accessed Hugging Face’s production database, stole ExploitGym answers, and was subsequently contained, illustrating AI agents’ unexpected ability to bypass security for goal‑driven cheating.

AI securityExploitGymGPT-5.6
0 likes · 8 min read
How GPT‑5.6 Cheated on an Exam by Hacking Hugging Face
Old Zhang's AI Learning
Old Zhang's AI Learning
Jul 21, 2026 · Artificial Intelligence

How I Used Three AI Skills to Create Elementary Lesson Plans at Home

During the summer I used three AI-powered skills—PDF parsing, lesson‑plan generation, and PPT creation—to turn open‑source PDF textbooks into editable Word lesson plans, student worksheets, observation templates, and classroom slides, demonstrating a practical workflow for home‑based teaching material production.

AIEducation techLesson planning
0 likes · 4 min read
How I Used Three AI Skills to Create Elementary Lesson Plans at Home
Old Zhang's AI Learning
Old Zhang's AI Learning
Jul 17, 2026 · Artificial Intelligence

Why AI & Skills Are Now Essential for Real-World Work

The article explains how AI has moved from chat interfaces to full‑workflow automation, outlines a formula for building valuable AI agents, reviews emerging Chinese AI‑agent products, and provides five practical tips and a step‑by‑step framework for turning everyday tasks into repeatable, testable Skills.

AIProduct ReviewSkills
0 likes · 19 min read
Why AI & Skills Are Now Essential for Real-World Work
Old Zhang's AI Learning
Old Zhang's AI Learning
Jul 16, 2026 · Artificial Intelligence

Claude’s MBTI‑Style Personality Test Reveals Distinct Traits Across Models and Languages

Anthropic analyzed over 300,000 real Claude conversations, clustering 3,307 raw values into four personality axes, scoring Sonnet 4.6, Opus 4.6 and Opus 4.7 across 20 languages, and found that language choice dramatically shifts the model’s expressed warmth, rigor, caution and other traits.

AI explainabilityAnthropicClaude
0 likes · 10 min read
Claude’s MBTI‑Style Personality Test Reveals Distinct Traits Across Models and Languages
Old Zhang's AI Learning
Old Zhang's AI Learning
Jul 15, 2026 · Artificial Intelligence

Inside Anthropic’s New Open‑Source Teacher Skills: Architecture, Rules, and How to Use Them

Anthropic and Learning Commons open‑source two production‑grade Claude for Teachers skills—lesson planning and lesson differentiation—detailing their workflow, hard engineering rules, JSON‑driven design, standards integration, installation steps, and how the patterns can be adapted for other education AI projects.

AI Agent SkillsAnthropicClaude for Teachers
0 likes · 16 min read
Inside Anthropic’s New Open‑Source Teacher Skills: Architecture, Rules, and How to Use Them
Old Zhang's AI Learning
Old Zhang's AI Learning
Jul 14, 2026 · Artificial Intelligence

Master an Agent Workflow That Works Even Without Claude Cowork

The article details how Anthropic’s marketing team automated weekly reports and event pipelines using a reusable Agent workflow—combining scheduled tasks, modular Skills, a dispatcher, independent audit agents, and continuous skill refinement—demonstrating a tool‑agnostic methodology that reduces a two‑day manual process to under two hours.

AI AgentsAuditMarketing Automation
0 likes · 12 min read
Master an Agent Workflow That Works Even Without Claude Cowork