# Preserved outer interface from BT DR pp18-19 / VLA DR pp11-12.
bt_skill_interfaces/TaskTrace trace
string skill
string instruction
bt_skill_interfaces/ObjectTarget target
bt_skill_interfaces/RegionTarget destination
builtin_interfaces/Duration timeout
---
bt_skill_interfaces/ExecutionResult result
string execution_record_ref
---
uint8 PREPARING=0
uint8 WAITING_OBSERVATION=1
uint8 INFERRING=2
uint8 EXECUTING=3
uint8 COMPLETING=4
uint8 STOPPING=5
builtin_interfaces/Time stamp
uint32 sequence
uint8 phase
bool progress_valid
float32 progress
builtin_interfaces/Duration elapsed_time
string message