Changelog

User-facing changes to Mateo, newest first. Dates come from the real release history.

October 28, 2026

Share any capture, one capture input, simpler pricing

  • Share is on every capture. It copies a public, read-only link to the capture's DESIGN.md and screenshot. The Rebuild Package, evidence and source assets stay private.
  • One way to capture: paste a public URL and press Capture. Uploading a screenshot is no longer supported.
  • Simpler pricing. Every plan includes the Rebuild Package, DESIGN.md and the agent prompt. Plans differ only in captures per month: Free 3, Pro 25, Max 60.
  • Updated Terms of Service that cover Rebuild Packages, plus updated Privacy and Cookie Policies. A new consent banner means analytics runs only if you allow it.
  • Better link previews when Mateo pages are shared.

October 7, 2026

The Rebuild Package

  • Capture is the new core action. Paste a URL and Mateo captures how the site is built and how it behaves: screenshots, measured layout, typography, color, spacing, motion, interactions, responsive behavior and the site's downloadable assets.
  • Every capture produces a Rebuild Package for your coding agent: REBUILD.md, evidence.json, screenshots, the original assets, DESIGN.md and AGENT_PROMPT.md.
  • Capture coverage, per dimension (layout, typography, color & effects, assets, motion, responsive, interactions, page completeness), plus a list of known gaps so your agent asks you instead of guessing.
  • Captures is the new home for everything you capture.
  • A new Export button with three options: Rebuild Package, DESIGN.md, or Copy agent prompt.
  • The result page leads with a summary, and a Capture details panel holds Overview, Assets, Viewports and Design Analysis.
  • Design Analysis gives a qualitative read of the design (strengths, and issues by category) with no numeric score.
  • A new homepage.

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

Three input modes

  • 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

Your Library is now permanent

  • Generations are stored server-side in a managed PostgreSQL database, keyed to your account, so 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

Design Overview and a clearer results page

  • 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, so nothing is lost.

July 12, 2026

Account and plans polish

  • 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, with 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

Hello, Mateo

  • 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

Hardening pass

  • 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

Reliability release

  • 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

First public shape

  • 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.