2. Roles & Responsibilities (RACI)

Phase	AI Studio Engineer	Context Engineer (Domain)	Prompt Engineer	Product Dev	Product Owner
Discovery	A/R	A/R	C	C	A/R
Context Pack	C	A/R	C	C	A
Prompt & Tool Design	C	C	A/R	C	A
Agent Orchestration	A/R	C	C	C	C
Evaluation Harness	A/R	C	C	C	C
Mastering & Release	A/R	C	C	C	A
Tokenization & Splits	C	C	C	C	A/R
Deployment & Handover	A/R	C	C	A/R	A

A = Accountable; R = Responsible; C = Consulted.