What problem does it solve? Teams investing in testing often lack a structured strategy: they either write ad-hoc tests or over-invest in expensive e2e suites. This Skill creates a phased, evidence-based test rollout plan for existing (brownfield) products and orchestrates each phase through a research → plan → implement chain, resuming state across sessions. ## Core Features & Use Cases - Stateful rollout orchestration: Writes context/foundation/test-plan.md as a phased strategy, then re-derives progress on every invocation from which artifacts exist on disk, resuming at the next pending phase. - Evidence-driven risk mapping: Combines PRD/roadmap analysis, git hot-spot churn scans, test-base profiling, and a structured user interview to build a risk map scored by impact × likelihood, including abuse/security scenarios. - Downstream handoffs: Launches each rollout phase into /10x-new → /10x-research → /10x-plan → /10x-implement, updating the plan's status table as artifacts appear. - Use Case: After finishing a PRD and roadmap for an Astro/Supabase app, run the skill to produce a test strategy covering critical paths, hot-spot modules, and quality gates, then let it drive each phase to completion. ## Quick Start Ask the assistant to create a phased test plan for this project using the 10x-test-plan skill after your PRD and roadmap exist.