retro

Context — gather first

Collect these with individual Bash calls, one command per call:

• Claude session id — printenv CLAUDE_CODE_SESSION_ID
• Current branch — git branch --show-current
• Recent commits — git log --oneline -5
• Working tree status — git status --porcelain, reading at most the first 20 entries
• Changed files (staged+unstaged) — git diff --name-only HEAD

Treat any failure as an unknown value and carry on. These are gathered here rather than pre-computed because a worktree-isolated agent refuses any command carrying a $-expansion, which made this skill fail at load — keep $-expansion out of the pre-compute block (#1687).

Purpose

The self-improvement loop. Answers: "What happened, what did we learn, and how do we prevent the same mistakes next time?" Every other workflow stage is about the current task; this skill is about the next task — and every task after that.