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Enhancement specification (example)

context

existing app: TaskFlow Pro v1.3 (Next.js 14, Node.js API, Postgres 14)
request: add task dependencies and Gantt-style timeline view

goals

represent finish-to-start dependencies between tasks
show project timeline with critical path basics

constraints

no breaking changes to existing task API
incremental rollout behind feature flag task_dependencies

acceptance criteria

create/read/update/delete dependencies via versioned endpoints (v2)
timeline view loads in < 400ms P95 for 1k tasks
migration scripts support roll-forward and rollback

risks

query performance on large projects → add indexes, pagination, caching
UI complexity → progressive disclosure and virtualization