AI & Agents

Prompt Builder

Last updated 2026-08-26 · benchmark measured 2026-08-26 — deterministic & reproducible

Prompt Builder is a workspace for creating, organizing, and testing AI prompts.

Is Prompt Builder production-ready?

Legit.Show scores Prompt Builder 85 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on Prompt Builder (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Reliability; its weakest is Performance. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

• Performance — 46/100
• Accessibility — 90/100
• Security — 85/100
• Privacy — 75/100
• Reliability — 100/100
• Standards — 100/100
• Discoverability — 100/100

What we measured

• Security headers present: CSP, HSTS, X-Content-Type-Options, Referrer-Policy.
• Served over HTTPS with a valid certificate.
• Real Lighthouse performance run — 252 ms to first byte.
• Returns a proper 404 for unknown routes.
• 1 of 1 sampled routes reachable.
• Has a reachable privacy policy.
• Sets cookies / loads scripts with no consent prompt.
• Discoverable: structured data, sitemap, OpenGraph image, canonical URL.

Who it's for

AI practitioners · Teams and professionals · Prompt engineers · Developers · Content creators

Pricing

Free plan with limits (3 saved prompts, 5 blocks per prompt, 2 folders); Pro at $10/month or $75/year (unlimited everything)

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