Update to Product & App Architect

{
  "description": "Define scoped changes to an existing app as a feature delta with testable acceptance criteria.",
  "included_files": [],
  "name": "specify-feature",
  "skill_md_contents": "---\nname: specify-feature\ndescription: Define scoped changes to an existing app as a feature delta with testable acceptance criteria.\n---\n\n# Specify Feature\n\n## When to use\nDefine scoped changes to an existing app as a feature delta with testable acceptance criteria.\n\n## Workflow\nCapture current and proposed behavior, specific user goal, entry point, affected roles, flow and all relevant states. Define data/API/auth impacts and edge cases; include non-goals, dependencies, rollout and reversal strategy. Preserve established design and architecture by default; reject unrelated rewrites.\n\nProduce a concise delta spec from `../../templates/feature-delta.md`. Give requirements stable IDs and map them to observable acceptance tests when engineering work will follow. Don't invent database tables or route names without inspecting code.\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/feature-specs.md`.\n"
}