Microsoft's Agent Lightning v1.0.1 ships an agent skill whose job is optimizing other agents, installed through gh skill

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Released 2026-08-24, Agent Lightning v1.0.1 is the first official cut of the Agent Lightning Skill: give it an editable agent and a benchmark, and it walks a coding agent through systematic changes to prompts, tools, workflows, models and reasoning settings, trading off accuracy, cost, latency and reliability. Install is `gh skill install microsoft/agent-lightning agent-lightning --agent <agent>` for Claude Code, Codex or GitHub Copilot. The repo sits at 17,776 stars, and v1.0.0 a week earlier (2026-08-17) had already cut the codebase to roughly 3,500 lines and added Kubernetes Job execution plus a proxy that trains against the deployed harness with zero agent changes.