$npx -y skills add sterlingcrispin/claude_slash_commands --skill checkpointConcise checkpoint on hypothesis, changes, metrics, and next action
| 1 | Give me a concise checkpoint with: |
| 2 | 1) Hypothesis tested |
| 3 | 2) Exact change made |
| 4 | 3) Before/after metrics |
| 5 | 4) What improved |
| 6 | 5) What did not improve |
| 7 | 6) Current blocker |
| 8 | 7) Next highest-priority action |