carmanagement/docs/ops/phase4-measurement-template.md

Phase 4 — Extraction measurement template

Fill one copy per candidate (notifications | payments-webhooks | media). Store dated copies under docs/ops/evidence/ (create as needed). Do not extract without G1–G7.

Candidate

• Name:
• Date:
• Author:
• Environment measured: staging / production

G1 — Soak baseline

• Command / duration:
• Error rate / p95:
• Link or paste /metrics summary:

G2 — Bottleneck

• Symptom (SLO miss):
• Attribution (route, job, DB, Redis, storage):
• Supporting graph or log sample:

G3 — Blast radius / compliance

• Why a separate deployable (not just more workers):

G4 — Ownership

• Eng owner:
• On-call:
• Budget for dual-run:

G5 — Contract

• Sync API or async events:
• Contract test location (planned):

G6 — Dual-run plan

• Shadow period:
• Diff/alert strategy:

G7 — Rollback

• Cutback steps:
• Drill date (must be practiced once):

Decision

• Do not extract — pursue in-monolith item: _______________
• Extract — write service ADR and implementation plan (separate change)

Sign-off: _______________ date: _______________