Update to Ponytail

{
  "description": "Show ponytail's measured impact as a compact scoreboard: less code, less cost, more speed, from the benchmark medians. One-shot display, not a persistent mode, and not a per-repo number. Trigger: /ponytail-gain, \"ponytail gain\", \"what does ponytail save\", \"show ponytail impact\", \"ponytail scoreboard\".",
  "included_files": [],
  "name": "ponytail-gain",
  "skill_md_contents": "---\nname: ponytail-gain\ndescription: \"Show ponytail's measured impact as a compact scoreboard: less code, less cost, more speed, from the benchmark medians. One-shot display, not a persistent mode, and not a per-repo number. Trigger: /ponytail-gain, \\\"ponytail gain\\\", \\\"what does ponytail save\\\", \\\"show ponytail impact\\\", \\\"ponytail scoreboard\\\".\"\ndisable-model-invocation: true\n---\n\n# Ponytail Gain\n\nDisplay this scoreboard when invoked. One-shot: do NOT change mode, write flag\nfiles, or persist anything.\n\nThe figures are the published benchmark medians (5 everyday tasks: email\nvalidator, debounce, CSV sum, countdown timer, rate limiter; three models:\nHaiku, Sonnet, Opus). They are measured, not computed from the current repo.\nSource: `benchmarks/` and the README.\n\n## Scoreboard\n\nRender plain ASCII bars. The bar length shows the measured range; the label\ncarries the exact figure:\n\n```\n  ponytail gain                     benchmark median · 5 tasks · 3 models\n\n  Lines of code   no-skill  ████████████████████  100%\n                  ponytail  ██▌·················    6–20%   ▼ 80–94%\n  Cost            no-skill  ████████████████████  100%\n                  ponytail  █████▌··············   23–53%  ▼ 47–77%\n  Speed           ponytail  ▸ 3–6× faster\n\n  This repo:  /ponytail-debt  (shortcuts you deferred)\n              /ponytail-audit (what's still cuttable)\n```\n\n## Honesty boundary\n\nThese are benchmark medians, not this repo. NEVER print a per-repo savings\nnumber (\"you saved X lines/tokens here\"): the unbuilt version was never\nwritten, so there is no real baseline to subtract from in a live repo. The\nonly real per-repo figures come from `/ponytail-debt` (a counted ledger), and\nthis card points there instead of inventing one.\n\n## Boundaries\n\nOne-shot display. Edits nothing, changes no mode.\n\"stop ponytail\" or \"normal mode\": revert.\n"
}