Build5 min readBuildTime required: Varies by project (hours to days) What this does: Implements the project phase-by-phase, following the implementation plan. When to use: After architecture is approved. Repeat this process for EACH phase. Critical rule: One phase at a time. Never ask Claude to build everything at once.What you will have after this: Build phases complete with all steps implemented, tests passing, and ACs verified. Needs editingContinue reading — just your emailFree access to all guides. No password, no credit card.Continue with emailAlready have access? Sign inBuildBefore EVERY build phase: The Phase Startup ChecklistFirst Run Only: Database SetupFirst Run Only: Animation Library SetupBuilding a phase: The Loop1. Give Claude ONE step at a time2. After EVERY build phase run the full test suite, check acceptance criteria, update acceptance checklist, commit and push, update beads3. Clear context for next phase (if it doesn't do it itself)Using git worktrees for parallel phases (advanced)Using subagents for focused tasksContext management during long buildsWhen things go wrongCheckpoint