Developer Tools

ponytail

Source: dietrichgebert/ponytail · ★ 59199 · JavaScript

Last updated 2026-06-15 · benchmark measured 2026-09-10 — deterministic & reproducible

A ruleset that steers AI coding agents to write the minimum code that works.

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To cite this score: legit.show/s/gh-dietrichgebert-ponytail/2026-09-10. That address never changes; this page moves with every re-measure.

Legit.Show scored ponytail 71/100 on 2026-09-10, measured across all 7 frames from its public surface. legit.show/s/gh-dietrichgebert-ponytail/2026-09-10

Is ponytail production-ready?

Legit.Show scores ponytail 71 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on ponytail (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Performance; its weakest is Privacy. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

• Performance — 99/100
• Accessibility — 98/100
• Security — 45/100
  How this compares across the catalogue: The Web Security Baseline
• Privacy — 25/100
  How this compares across the catalogue: The Privacy Gap
• Reliability — 67/100
• Standards — 92/100
• Discoverability — 70/100

What we measured

• Security headers present: X-Content-Type-Options, Referrer-Policy.
• No Content-Security-Policy and no HSTS.
• Served over HTTPS with a valid certificate.
• Real Lighthouse performance run — 282 ms to first byte.
• 0 of 0 sampled routes reachable.
• No privacy policy found.
• Sets cookies / loads scripts with no consent prompt.
• Discoverable: sitemap, OpenGraph image.

Who it's for

AI developers · AI coding agents · Senior engineers · Teams using AI for code generation · FastAPI + React projects

Pricing

Free (MIT licensed)

Sources and updates

Description

Taken from ponytail.dev's own website on 2026-06-15.

Code

github.com/dietrichgebert/ponytail.

Benchmark

Measured by Legit.Show from the live site, the way any visitor sees it — with no access to its code or accounts. Same method for every product, and no AI decides the score. Last checked 2026-09-10.

Put together from public information, without ponytail's involvement. If anything here is wrong, tell us and a person will check it.

Visit ponytail → · Alternatives to ponytail → · How this was measured →