Mastering Objective-C id (Dynamic and Duck Typing Summary)
When you first study Objective-C, the id type can make you pause.
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Follow the trail from foundational concepts to practical engineering decisions.
[MCP·Skill #3] MCP vs Skill vs Subagent: What to Use and When
There are more ways than ever to extend AI coding tools: connect tools with MCP, register procedures with Skills, and delegate work to subagents.
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Claude vs ChatGPT: Coding, Images, and Design (July 2026)
The question “Which should I subscribe to, Claude or ChatGPT?” can no longer be answered by comparing model performance alone. As of July 2026, the top models on both sides (Claude Fable 5 and GPT-5.6 Sol) score 60 to 59 on overall intelligence—effectively a tie. The difference lies in the ecosystems: what they can and cannot create for you.
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Claude Code Rules and Memory: How Do CLAUDE.md and Memory Differ?
When using Claude Code in a project, two needs arise: “Always follow this rule” and “Remember what we discovered last time.”
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AI Code Review in Practice: Can It Replace Human Reviewers? (3-Month Summary)
It has been three months since we introduced an AI code review tool to the team.
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