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## Numbers
-5 coding tasks, same agent with and without ponytail: **−16% tokens, ~4× faster, 293 → 47 lines.** The 246 lines nobody wrote have never caused an incident. Data: [benchmarks/](benchmarks/).
+5 coding tasks, same agent with and without ponytail: **−16% tokens, ~4× faster, 293 → 47 lines.** The 246 lines nobody wrote have never caused an incident.
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+Then six harder tasks — streaming parsers, atomic file sync, auth, a concurrent money ledger — against a no-skill control and the [caveman](https://github.com/JuliusBrussee/caveman) skill, with adversarial security and concurrency probes:
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+Everyone passes every probe. Ponytail does it with a third of caveman's code, a sixth of control's, and was ~5× cheaper when the surprise feature request landed (96 lines changed vs 487 for control). Every shortcut is marked in-code with its upgrade path. Data: [benchmarks/](benchmarks/).
## License
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