What problem does it solve? Before executing a multi-section implementation plan, teams need a structured way to catch infra mismatches, missing test coverage, breaking changes, and security risks. This Skill defines the agent roles, prompts, and output schemas for a two-layer validation fan-out that produces a single net gate verdict gating execution. ## Core Features & Use Cases - Layer 1 dimension agents: Runs four parallel checks covering infra/setup fit, test coverage, breaking changes, and security surface. - Layer 2 feasibility agents: Spawns one agent per plan section to assess mechanical feasibility, plan gaps, conflicts, and highest-risk edits, with a probe-emission rule for untestable runtime behaviors. - Net gate synthesis: Aggregates all findings into PASS, CONDITIONAL, or BLOCKED with exact output tables, plan-update proposals, and execute-agent instructions. - Use Case: After drafting a plan that touches five packages and a container gateway, invoke this Skill to fan out validation agents, surface a port conflict and an unlisted downstream consumer, apply fixes to the plan, and write the validate-contract before EXECUTE. ## Quick Start Run the validate fan-out on my plan file at process/features/auth/active/login-plan.md and give me the net gate verdict.
