Custom procedures are not scripted for articles without the auto-generate custom procedure (0x2) schema option.
The following procedures are used by sp_scriptpublicationcustomprocs to create procedures the Subscriber and should not be executed directly:
sp_script_reconciliation_delproc
sp_script_reconciliation_insproc
sp_script_reconciliation_vdelproc
sp_script_reconciliation_xdelproc
sp_scriptdelproc
sp_scriptinsproc
sp_scriptmappedupdproc
sp_scriptupdproc
sp_scriptvdelproc
sp_scriptvupdproc
sp_scriptxdelproc
sp_scriptxupdproc