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Get Started Free →A tiny practice skill that summarizes shell command output into one line.
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-01 | ✗→✓ | ▲ Improved | -42% | 0% |
| case-02 | ✗→✓ | ▲ Improved | -48% | 0% |
| case-05 | ✗→✓ | ▲ Improved | -75% | 0% |
| case-06 | ✗→✓ | ▲ Improved | -18% | 0% |
| case-09 | ✗→✓ | ▲ Improved | -55% | 0% |
Give the fix-loop exercise a target with known frontmatter findings: this skill deliberately ships without a version field and with a description that does not lead with its trigger.
Input: ls: cannot access '/tmp/nope': No such file or directory Output: ls failed: 1 missing path
Other measured skills in the registry, with their headline benchmark lift.