May this operation run right now, and how? A small, heap-free C99 library that answers deterministically — based on resource budgets, rate windows and optional calibration.
MQTT publish, OTA update, flash write, log burst, debug dump, parser invocation, queue allocation — any operation that must be degraded, delayed, rejected or allowed under pressure gets a deterministic answer before it runs.
Deterministic decisions per operation profile.
No heap, no floats, no global mutable state.
Optional record of recent decisions.
Optional rate windows and lifetime limits — e.g. flash-write lifetime budgets.
Optional calibration and diagnostic strings.
Single-header amalgamated distribution option; stable public API since v1.0.0.
Not a scheduler, allocator, watchdog, logger, profiler or RTOS replacement. Its value is narrower: an admission-control layer that prevents MQTT storms, blocks OTA on unsafe voltage, degrades logging under memory pressure, and rejects non-critical work in survival mode.