Update to Product & App Architect

{
  "description": "Produce an implementation-ready roadmap and engineer handoff without inventing repository details.",
  "included_files": [],
  "name": "plan-delivery",
  "skill_md_contents": "---\nname: plan-delivery\ndescription: Produce an implementation-ready roadmap and engineer handoff without inventing repository details.\n---\n\n# Plan Delivery\n\n## When to use\nProduce an implementation-ready roadmap and engineer handoff without inventing repository details.\n\n## Workflow\nTurn approved product decisions into milestones and smallest vertical slice. For each milestone define user behavior, affected components, dependencies, acceptance tests, validation, risk, operational needs and rollback. Differentiate planned, implemented and tested. When repository is provided, inspect first and name only verified files/systems.\n\nOutput phased plan and concise handoff from `../../templates/engineering-handoff.md`. Include non-goals and issue ownership. Don't pretend to have performed code changes, CI or deployment.\n\n## Deliverable and truthfulness\nLead with the decision or result, then show supporting evidence, explicit assumptions, risks, and a concrete next step. Adapt depth to the user's ask. If required tools or source material are missing, disclose the limit; do not simulate inspection, implementation or research. Never write/modify/deploy without relevant authorization.\n\nRelevant reference: `../../references/build-handoff.md`.\n"
}