memory-safety-patterns
Apply memory safety patterns in systems code
Memory bugs cause crashes and security flaws in systems code. This skill teaches RAII, ownership, and resource management patterns in Rust, C++, and C.
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Using "memory-safety-patterns". Summarize safe resource management options in C, C++, and Rust.
Expected outcome:
- C: use goto cleanup blocks or explicit create and destroy functions
- C++: use RAII with destructors and smart pointers
- Rust: rely on ownership, borrowing, and Drop semantics
Using "memory-safety-patterns". When should I use unique_ptr versus shared_ptr?
Expected outcome:
- Use unique_ptr when a single owner controls the lifetime
- Use shared_ptr when multiple owners must share the resource
- Prefer unique_ptr with move semantics over shared_ptr when possible
Using "memory-safety-patterns". How does Rust prevent use-after-free?
Expected outcome:
- The compiler tracks ownership and enforces single owner by default
- References (borrows) have checked lifetimes
- Memory is freed automatically when the owner goes out of scope
Security Audit
SafeThe skill is a static educational markdown guide containing code examples for memory safety patterns. It has no executable scripts, no runtime tool calls, no network behavior, and no file system access. All 67 static findings are false positives caused by the scanner pattern-matching on educational keywords in legitimate systems programming content.
Risk Factors
🌐 Network access (4)
⚙️ External commands (23)
📁 Filesystem access (1)
Quality Score
What You Can Build
Prevent memory bugs
Apply RAII and ownership patterns to reduce leaks and use after free errors.
Modernize resource handling
Replace raw pointers with smart pointers and safer container access.
Understand ownership rules
Learn borrowing, lifetimes, and safe shared ownership patterns.
Try These Prompts
Explain RAII with a short C++ example for file and mutex handling. Keep it concise and practical.
For a tree with parent and child links, recommend smart pointers and explain how to avoid cycles.
Show how a C++ RAII class maps to Rust ownership, borrowing, and Drop. Provide a brief example.
Recommend a data race prevention approach in C++ and Rust for a shared counter and map.
Best Practices
- Tie resource lifetime to scope using RAII or ownership
- Prefer safe containers and bounds checked access
- Use sanitizers and static analysis during development
Avoid
- Using raw pointers without clear ownership rules
- Returning references to stack local data
- Ignoring compiler warnings about unsafe access