plan

# plan ## Purpose Strategic planning engine for the Rune ecosystem. Produces a **master plan + phase files** architecture — NOT a single monolithic plan. The master plan is a concise overview (<80 lines) that references separate phase files, each containing enough detail (<200 lines) that ANY model can execute with high accuracy. **Design principle: Plan for the weakest coder.** Phase files are designed so that even an Amateur-level model (Haiku) can execute them with minimal errors. When the plan satisfies the Amateur's needs, every model benefits — Junior (Sonnet) executes near-perfectly, Senior (Opus) executes flawlessly. This is enterprise-grade project management: BA produces WHAT → Plan produces HOW (structured into phases) → ANY coder executes each phase with full context. > **Goal-first — leverage native goal/outcome commands (advisory, 2026).** Current > agent models (Opus 4.8, Sonnet 5, Fable 5) perform best when handed > the full goal + constraints up front, then left to execute at high effort. Some > platforms now expose this natively: Claude Code `/goal` sets a run's north-star; > Managed Agents **Outcomes** (`user.define_outcome` + rubric) grade-and-iterate to a > target. The master plan IS that goal contract in durable form — when a native > goal/outcome command is present, seed it from the master plan's Overview + > acceptance criteria instead of re-stating the goal loosely. Advisory only: the > master plan + phase files stay the source of truth on every ...