What problem does it solve? Power integrity failures can turn a timing-clean chip into a field failure, and raw IR-drop/EM reports from signoff tools are hard to interpret. This Skill reads those reports, pinpoints hot regions, classifies root causes deterministically, and proposes concrete power-grid fixes. ## Core Features & Use Cases - Deterministic budget checking: Computes the IR-drop budget (5–10% of Vdd) and passes or fails the worst-case measured drop via ir_drop_budget_check.py. - Cause classification and fix mapping: Runs a fixed 4-cause threshold ladder (weak via, sparse straps, switching cluster, narrow metal) and maps each cause to a fix such as add_straps, add_decap, widen_metal, or add_via_array. - Use Case: After routing a design, you run OpenROAD PSM and get a worst-case IR drop report. Use this Skill to classify each hotspot, generate a power/ir_triage.md report with fix tables and P&R script snippets, and hand off PDN changes to the flow orchestrator. ## Quick Start Analyze the IR-drop report from my latest OpenROAD PSM run and triage the hotspots into a fix plan.