Domain Embedded

Auto-injects when you're writing firmware for microcontrollers in Rust. It enforces the big constraints: no heap allocation (use heapless collections), interrupt safety (critical sections and Mutex patterns), and proper peripheral ownership through HAL singletons. The trace down approach is smart here because embedded constraints force specific design patterns. If you're working on STM32, ESP32, or Nordic chips and keep forgetting whether you need RefCell inside or outside the Mutex, this keeps the patterns visible. The framework comparison table (RTIC vs Embassy vs bare metal) is genuinely useful when you're picking a concurrency model. It's opinionated about safety, which is the right stance when a race condition can brick hardware.

skills.sh installs: 625
GitHub stars: 1.3K
last updated: Jul 14, 2026

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Install

$ npx -y skills add zhanghandong/rust-skills --skill domain-embedded --agent claude-code

Installs into .claude/skills of the current project.

Files

Project Context (Auto-Injected)

Target configuration: !cat .cargo/config.toml 2>/dev/null || echo "No .cargo/config.toml found"

Embedded Domain

Layer 3: Domain Constraints

Domain Constraints → Design Implications

Domain Rule	Design Constraint	Rust Implication
No heap	Stack allocation	heapless, no Box/Vec
No std	Core only	#![no_std]
Real-time	Predictable timing	No dynamic alloc
Resource limited	Minimal memory	Static buffers
Hardware safety	Safe peripheral access	HAL + ownership
Interrupt safe	No blocking in ISR	Atomic, critical sections

Critical Constraints

No Dynamic Allocation

RULE: Cannot use heap (no allocator)
WHY: Deterministic memory, no OOM
RUST: heapless::Vec<T, N>, arrays

Interrupt Safety

RULE: Shared state must be interrupt-safe
WHY: ISR can preempt at any time
RUST: Mutex<RefCell<T>> + critical section

Hardware Ownership

RULE: Peripherals must have clear ownership
WHY: Prevent conflicting access
RUST: HAL takes ownership, singletons

Trace Down ↓

SKILL.md on GitHub

Details

Repository: github.com/zhanghandong/rust-skills
Category: Rust
First seen: May 16, 2026