Apply SpanPrototype in decorator afterStart (phase 1b) - #12037

Draft

dougqh wants to merge 9 commits into

dougqh/span-prototype-apifrom

dougqh/decorator-base-prototype

Commits on Jul 22, 2026

Introduce SpanPrototype: baked-once constant span-tag descriptor

dougqh
and
claude
committed
53dc371
Drop null/empty SpanPrototype constants; add TagMap.Entry.isEmptyValue

dougqh
and
claude
committed
0416876
Add SpanPrototype construction path: buildSpan/startSpan(SpanPrototype)

dougqh
and
claude
committed
24fb71f
Carry integration name in SpanPrototype; make the builder surface uniformly init*

dougqh
and
claude
committed
8718952
Add span-creation benchmark for the SpanPrototype construction path

dougqh
and
claude
committed
b8aa652
Add AgentSpan/DDSpanContext.apply(SpanPrototype) seam; route construction through it

dougqh
and
claude
committed
3691359
Apply SpanPrototype in decorator afterStart; migrate afterStart tests off mocks

dougqh
and
claude
committed
911fc57

Commits on Aug 29, 2026