Profile iOS app power usage with Instruments to identify the dominant energy-draining subsystem.
npx skills add https://github.com/CharlesWiltgen/Axiom --skill energy
Please help me install this Agent Skill. Skill: energy Source: https://github.com/CharlesWiltgen/Axiom/tree/main/.claude-plugin/plugins/axiom/skills/energy Command: npx skills add https://github.com/CharlesWiltgen/Axiom --skill energy
Energy issues such as battery drain and device overheating are diagnosed with a structured Power Profiler workflow to identify the dominant subsystem and targeted fixes.
Start with a Power Profiler trace, identify the dominant subsystem, then apply the recommended patterns.
High-intent search queries and answers about installing and using this skill.
Battery drain is diagnosed using Power Profiler in Instruments to trace energy usage across subsystems. Capture a trace during the suspected drain scenario, identify which subsystem—CPU, GPU, Network, Location, or Display—dominates power consumption, then apply targeted fixes to that component.
Energy profiling requires Power Profiler, available in Instruments (bundled with Xcode 26+), running on iOS 26+. These tools measure power consumption across CPU, GPU, Network, Location, and Display to isolate energy drain sources.
Before/after traces in Power Profiler quantify optimization impact. Capture a baseline trace of the problematic behavior, apply your fix, then capture a post-optimization trace and compare subsystem power metrics to verify improvement.
Common energy anti-patterns include unconstrained CPU work, continuous GPU rendering, frequent network requests, constant location tracking, and high screen brightness. Power Profiler identifies which subsystem dominates drain so you can apply the relevant pattern fix.
Yes. Device overheating and battery drain share root causes—excessive CPU, GPU, or radio activity. Power Profiler diagnoses the dominant subsystem driving both thermal and energy issues, enabling fixes that reduce heat and extend battery life.
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