Session boundaries are currently decided by timing heuristics (3s grace, 30s idle, 2s debounce, 60s orphan TTL) and then patched up by _reopen_session, orphan-log replay, _reextract_with_logs, and _absorb_orphan_for_trace.
Meanwhile the standard session.id semconv attribute is referenced exactly zero times.
Direction: treat session.id / gen_ai.conversation.id / agentevals.session_name as the authoritative boundaries and demote timers to last-resort GC.
This one needs design.
Session boundaries are currently decided by timing heuristics (3s grace, 30s idle, 2s debounce, 60s orphan TTL) and then patched up by
_reopen_session, orphan-log replay,_reextract_with_logs, and_absorb_orphan_for_trace.Meanwhile the standard
session.idsemconv attribute is referenced exactly zero times.Direction:
treat session.id/gen_ai.conversation.id/agentevals.session_nameas the authoritative boundaries and demote timers to last-resort GC.This one needs design.