What problem does it solve? Tape-out is a one-way door: shipping a GDS with an unverified signoff item means a failed fabrication run. This Skill runs the final pre-tapeout gate, confirming every signoff category is green or covered by a documented, human-approved waiver before GDS hand-off. ## Core Features & Use Cases - Deterministic signoff gating: Runs flow_compliance_check, tapeout_checklist_gen, signoff_audit, and foundry signoff programs, refusing to declare tape-out readiness if any returns FAIL. - Eight-category checklist: Covers functional, timing, power integrity (IR-drop/EM), physical (DRC/LVS/antenna/density/ERC), DFT coverage, power intent, documentation, and GDS release with per-item status. - Waiver governance: Validates waiver schema and honesty (no AI self-approval), then assesses residual risk for each deferred item. - Use Case: Two weeks before a shuttle deadline, run the checklist to discover LVS is clean but IR-drop exceeds the 10% Vdd budget, route that red item to the IR-drop triage skill, and produce a go/no-go report with waivers enumerated. ## Quick Start Run the tapeout checklist on my project directory and tell me whether the design is ready for GDS release.
