plan-lifecyclelisted

## Runtime persistence `.principled/` (in cwd) is the natural runtime emplacement for principled-related artifacts. At intake, read whatever is there if any — prior context may inform this work. When this skill produces durable artifacts, write them to `.principled/` too. Skip if absent. ## Routing Guidance - **Hub Skill:** Combines project planning (PLAN) and plan execution (EXECUTE). - **PLAN mode**: 'plan this project', 'create roadmap', 'break down feature', 'decompose work', 'generate PLAN.md'. - **EXECUTE mode**: 'run plan', 'execute roadmap', 'build it', 'do it', 'run PLAN.md'. ## CONTRAST - NOT for: day-to-day task tracking or individual task SPECS — use task-lifecycle - NOT for: early-stage idea exploration before a project exists — use ideation - NOT for: small A/B tests at small scale — use plan-do-check-act ## Decision Router IF planning a new project, phase, or feature → **PLAN** mode IF executing an existing PLAN.md or ROADMAP.md → **EXECUTE** mode --- # PLAN Mode Create executable project plans and roadmaps with structured task decomposition. ## Process 1. **Intake** — gather goals, constraints, and dependencies. 2. **Phase Decomposition** — break work into 3-5 high-level phases. 3. **Task Specificity** — define atomic, verifiable tasks for each phase. 4. **Output** — generate `ROADMAP.md` and initial phase `PLAN.md` files. **Plan formatting:** You MUST read `references/plan-format.md` BEFORE writing any plan file. **Scope estimation:** You MUST re