Agent Skills: standup

Summarize what you personally shipped over a time window from git history — an engineer standup or weekly recap, not a customer changelog. Scopes commits to your git author identity, reads the diffs, and classifies each as a feature, fix, refactor, tech-debt, or docs change. Use when the user asks what did I get done, write my standup, what did I ship this week, weekly recap, or runs /standup.