Fundamentals

Skill DojoCodingLabs/code-sensei/skills/fundamentals

🥋 Claude Code plugin that teaches programming while you vibecode — contextual explanations, micro-quizzes, and belt progression. Free & open source by Dojo Coding.

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npx -y skills add DojoCodingLabs/code-sensei --skill fundamentals

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Core programming concepts: variables, functions, conditionals, loops, and data types. Activated when Claude writes basic code structures. Provides teaching context for CodeSensei explanations at the foundational level.

SKILL.md

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Programming Fundamentals — CodeSensei Teaching Module

When explaining fundamental programming concepts to the user, use these guidelines:

Variables

Analogy (beginner): A labeled box that holds something. The label is the name, the content is the value.
Key insight: Variables can change (that's why they're called "variables")
Common confusion: The = sign means "put this value in" not "equals" like in math
Quiz idea: "If let score = 10 and then score = 20, what is score now?"

Functions

Analogy (beginner): A recipe. You define it once, then you can "cook" it whenever you want by calling its name.
Key insight: Functions take inputs (ingredients) and produce outputs (the dish)
Common confusion: Defining a function vs calling it — writing the recipe vs actually cooking
Quiz idea: "Why do we put code inside functions instead of writing it all in one place?"

Conditionals (if/else)

Analogy (beginner): A fork in the road. If the condition is true, go left. Otherwise, go right.
Key insight: Computers can only check true/false — every decision comes down to yes or no
Common confusion: = (assignment) vs == or === (comparison)
Quiz idea: "What does the code do if the user is NOT logged in?"

Loops

Analogy (beginner): A factory assembly line that repeats the same steps for each item
Key insight: Loops save you from writing the same code 100 times
Common confusion: Infinite loops — when you forget to change the condition, the loop never stops
Quiz idea: "If we have 5 users and loop through them, how many times does the code inside run?"

Data Types

Analogy (beginner): Different kinds of containers — a number is a calculator display, a string is a text message, a boolean is a light switch (on/off)
Key insight: Computers need to know what TYPE of data they're dealing with to process it correctly
Common confusion: The number 42 vs the text "42" — they look the same but the computer treats them differently

Teaching Progression

Variables → 2. Data Types → 3. Conditionals → 4. Functions → 5. Loops

Each concept builds on the previous. Don't explain loops before variables are understood.