What problem does it solve? Turning an approved specification-driven development (SDD) design into concrete, ordered implementation work is error-prone: tasks end up vague, unordered, or missing test coverage. This Skill converts a change's proposal, specs, and design into a structured tasks.md with dependency-ordered phases and verifiable checklist items. ## Core Features & Use Cases - Phased Task Breakdown: Produces hierarchical tasks (1.1, 1.2, 2.1...) organized into Foundation, Core Implementation, Integration, Testing, and Cleanup phases, each task specific, actionable, and verifiable. - Review Workload Forecast: Estimates changed-line volume against a 400-line review budget and recommends chained or stacked PR splits with focused test commands, runtime harnesses, and rollback boundaries. - Multi-Mode Persistence: Supports engram, openspec, hybrid, and none artifact store modes, reading dependencies and persisting the tasks artifact accordingly. - Use Case: After an orchestrator completes the design phase for a new authentication feature, this sub-agent generates tasks.md with RED-test-first tasks derived from the threat matrix, plus a PR-chaining recommendation when the change exceeds the review budget. ## Quick Start Ask the orchestrator to run the sdd-tasks phase for your change so it produces a tasks.md breakdown with phases, test tasks, and a review workload forecast.