DAY 15 / 210
Ship Triangulated Feature Behind Production Flag
This day initiates the first measured production deployment in phase-1-eval, using flags to gate risk while capturing triangulation data. It establishes the pattern of safe, observable rollouts that subsequent evaluation weeks will iterate on. Without this foundation, later metrics-driven decisions lack a controlled baseline.
⏱ 45 min target📝 3 quiz Qs
Resources
- 25 min
- 15 min
Deliverable
Git commit adding a new feature flag, basic metric emission, and rollout documentation in the repo
Quiz · 3 questions
1. What is the primary risk mitigated by shipping behind a feature flag rather than a direct deploy?
2. Name one concrete metric you would emit on first flag-enabled usage to support triangulation.
3. Describe a scenario where a feature flag alone is insufficient and additional triangulation data is required.