Module bolt4 

BOLT#4-style error taxonomy for CALL failures, ported from src/peering/macula_bolt4.erl (macula-io/macula) — see plans/PLAN_WIRE_PROTOCOL.md §9. Adapted from Lightning Network’s BOLT#4 onion-failure codes: a small, specific taxonomy that prevents retry loops and enables post-mortem, rather than an open-ended error string. Codes are stable across V2 minor versions; new codes append at the next free integer.

The retry policy is advisory — a caller’s own CALL state machine is the actual decision point (not implemented by this module).

Enums

Code

The 17 codes macula’s own table/0 defines, in order.