designesy.org/score4 engines70 checksno logincontract v0.4.1
Score any site
All four engines on one URL: the 42-check contract score, drift, AI readiness and guardrails, with one composite grade and every finding a click away.
Run a URL and all four engines light at once. Point at any cell to read the check behind it.
- Contract score 42 checks
- Does the page keep the v0.4.1 contract: tokens, type, motion, color, access, identity?
- Drift radar 12 checks
- Do its tokens resolve, and do its values still cluster on a scale?
- AI readiness 10 checks
- What can an agent read about the system before it builds?
- Guardrails 6 checks
- Can its tokens become a build contract an agent follows?
The composite weighs the first three at 50, 30 and 20. Guardrails reports on its own.
- pass
- warn
- fail
- skipped
Method
Fire four engines
In parallel, each fetching the page itself: contract score, drift, readiness, guardrails.
Weigh three
The composite is the contract score at 50%, drift at 30% and readiness at 20%.
Keep one apart
Guardrails grades the bundle it writes for agents, so it reports beside the composite.
Remember the last run
Your previous composite for the site is kept in this browser, and the change shows on the next run.
composite = score × 0.5 + drift × 0.3 + readiness × 0.2A ≥ 90 · B ≥ 80 · C ≥ 70 · D ≥ 60 · F belowChecks a person must confirm are left out of every score.