Plan, execute, and verify a feature using structured planning, gated pipeline, and issue tracking.

Planning skills for the Han suite: specifying, planning, sequencing, breaking down, and stress-testing work before implementation. Home of plan-a-feature, plan-implementation, plan-a-phased-build, plan-work-items, and iterative-plan-review, plus the discussion-facilitator agent. Depends on han-communication and han-core; bundled by the han meta-plugin.