Production-safe function call tracing powered by Recon.

Provides heavily rate-limited tracing of function calls for debugging without risk of overwhelming the node. Uses the battle-tested Recon library with additional safety layers.

Safety Guarantees

• Rate limiting: 5 traces per second max (configurable)
• Message limit: 50 traces before auto-stop (configurable)
• Time limit: 60 seconds max before auto-stop
• Blocked hot paths: High-frequency stdlib functions rejected
• Arity required: Must specify function arity (no wildcards)
• Process isolation: Tracer runs in separate process

Blocked Functions

The following high-frequency functions are blocked to prevent accidental node overload:

• :erlang.send/2, Kernel.send/2
• GenServer.call/2,3, GenServer.cast/2
• :ets.lookup/2, :ets.insert/2
• Process.send/2,3

Requirements

Requires the recon package:

{:recon, "~> 2.3"}