What problem does it solve? Coordinating multiple specialized AI agents on a software task is error-prone: stages get skipped, planning is bypassed to save time, and chain state is lost between sessions. This Skill gives a Team Lead agent deterministic routing logic so every task follows the correct Discovery, Planning, Execution, and Validation sequence. ## Core Features & Use Cases - Dual-model planning policy: Runs specification and architecture stages with paired GPT/Sonnet agents by default, with scored comparison and hybrid merging of outputs. - Persistent chain state: Tracks stage, mode, artifacts, and blockers in .ai/chain-state.md so work survives session restarts. - Stage gating and failure handling: Enforces mandatory planning gates, degraded-mode fallback when one dual branch fails, and escalation rules for repeated remediation loops. - Use Case: A vague feature request arrives; the router runs research and code exploration in parallel, then spec-driven-dual, system-architect-dual, batched backend-developer tasks, and a final parallel code review. ## Quick Start Route this feature request through the full agent chain starting with dual-model specification and architecture planning.