# SC-038: Five-Phase Pipeline Is Preserved > Covers: FR-027 — The meta-skill MUST preserve the 5-phase pipeline as the core creation methodology > Type: Happy Path ## Given - The meta-skill is invoked with: "Create a skill for automated email triage" ## When - The meta-skill processes the request from start to finish ## Then - All 5 phases execute in order: 1. Phase 1: Discovery (research APIs, tools, data sources) 2. Phase 2: Design (define use cases, methodologies) 3. Phase 3: Architecture (structure the skill directory) 4. Phase 4: Detection (generate description with domain keywords) 5. Phase 5: Implementation (create all files, validate, scan) - No phase is skipped - The output explicitly references each phase ## Verification Method **Method**: Manual test **Steps**: 1. Run the meta-skill with the email triage input 2. Observe the output for phase markers (Phase 1, Phase 2, Phase 3, Phase 4, Phase 5) 3. Verify all 5 phases are executed sequentially **Expected evidence**: Output contains clear markers for all 5 phases: "Phase 1: Discovery", "Phase 2: Design", "Phase 3: Architecture", "Phase 4: Detection", "Phase 5: Implementation". Each phase produces visible output.