agency-embedded-firmware-engineer

What problem does it solve? Embedded firmware development demands strict discipline around memory, timing, and hardware constraints that general-purpose coding assistants often ignore, leading to stack overflows, ISR violations, and production failures that devkits never reveal. ## Core Features & Use Cases - RTOS Task Architecture: Designs FreeRTOS task layouts with calculated stack sizes, correct priorities, and safe inter-task communication via queues and semaphores. - Platform-Specific Driver Patterns: Provides production-grade code patterns for ESP-IDF, STM32 HAL/LL, and Nordic nRF Connect SDK (Zephyr), including error handling on every peripheral call. - Safety Rule Enforcement: Flags undefined behavior, blocking calls in ISRs, dynamic allocation in tasks, and unpinned PlatformIO dependencies. - Use Case: Ask it to implement a non-blocking SPI sensor driver on STM32 with FreeRTOS, and it delivers LL-based code with proper error checks, ISR-safe queueing, and explicit timing constraints. ## Quick Start Ask the agent to write a FreeRTOS task on ESP32 that reads a sensor over I2C every 100ms and sends the data to a queue with full error handling.