Changelog

User-facing changes, newest first. Dates are real release dates from the project history.

July 18, 2026

Design System Health and a leaner spec

The Design Overview scorecard became Design System Health: the score is now computed by code from a fixed rubric of per-category checks, each backed by cited evidence from the extraction - the model reports findings, the code does the math. A calculation drawer shows every check, deduction, and unknown.
The Agent Prompt Guide was retired from new generations. Paid plans now extend the spec with Do's and Don'ts plus Responsive Behavior sections; documents generated earlier keep their guide.
The AI Context Summary follows a stricter contract: one copy-ready prompt plus a design-context block, brand-neutral and sized for a model's context window.

July 17, 2026

Generate from a URL, a screenshot, or both together. Screenshot input (PNG, JPEG, WebP up to 6 MB) is available on paid plans; combining it with a URL cross-references exact extracted values with the visual state you care about.
Screenshot-only runs are honestly flagged: with no live CSS to read, every value is marked as a visual estimate and the output's quality flag reads "screenshot-only".
Faster generations: browser pre-warming and pipeline scheduling improvements shaved several seconds off typical runs.

July 17, 2026

Generations are stored server-side in a managed PostgreSQL database, keyed to your account - your Library now follows you across devices, browsers, and sessions.
Every completed generation saves exactly once, automatically. Retries and duplicate submissions can no longer create duplicate Library entries.
The Library paginates: long histories load quickly and fetch more on demand, with real thumbnails throughout.

July 16, 2026

New Design Overview scorecard on every generation: an overall design score, five sub-scores (color, typography, layout, motion, accessibility), a one-line verdict, strengths, opportunities, and Design DNA descriptors - an honest critique, written by the model from the extracted evidence.
The Agent Prompt Guide moved into its own tab, alongside Design System and AI Context.
Simplified result actions: Copy design.md and Download .md.
Start a generation before signing in and it resumes automatically after the Google sign-in round-trip - nothing is lost.

July 12, 2026

The account menu now shows your plan, usage, and the exact date and time your quota resets, in your local timezone.
AI Context summaries are included on the Free plan.
Sign in launches the Google flow directly - no intermediate modal.
Signed-in users get a Recent section on the home page and are never shown the marketing pitch.
Remix is marked "Coming soon" - it's not part of the initial release.

July 11, 2026

The product is now called Mateo, everywhere.
New FAQ section on the landing page.
Pricing is Free ($0, 3 generations/month), Pro ($9/month, 25), and Max ($19/month, 60).

July 2, 2026

Release-blocking security hardening across the generation pipeline and API, including strict input validation on submitted URLs.
Generations can be cancelled mid-run, and failures are reported honestly instead of returning partial documents as if complete.
Refined visual identity: flat surfaces, a strict layout grid, and a unified type system across the marketing site and the app.

June 10, 2026

Long documents no longer truncate mid-section: generation is split across parallel calls with headroom on every section.
Error boundaries, health checks, and structured logging across the app.
First automated test suite covering security and storage core paths.

June 4, 2026

Legal pages (Terms, Privacy, Cookies) and a proper site footer.
Library with search, grid/list views, and share links.
The results page took its current form: always-visible site screenshot, confidence badges, copyable output.