# Mythos

> Mythos builds real React and Next.js apps from a plain-language prompt.

## Docs

- [Building and editing](https://docs.mythos.new/features/building-and-editing.md): How Mythos turns a plain-language prompt into a real git commit — what a build costs, what an edit costs, the progress card, and Build vs Plan mode.
- [Chat attachments](https://docs.mythos.new/features/chat-attachments.md): Attach images and files to a Mythos prompt via the + menu — photos the agent uses as visual references, and files committed to your project before the build.
- [Files and artifacts](https://docs.mythos.new/features/files-and-artifacts.md): The workspace Files tab holds non-code files — downloadable artifacts the agent generates (PDF, CSV, XLSX, charts) and files you upload in chat.
- [Plan mode](https://docs.mythos.new/features/plan-mode.md): Plan mode asks a few questions, generates real design directions from your answers, and gets a short plan approved — before any code is written, and free.
- [Skills](https://docs.mythos.new/features/skills.md): Reusable instructions the Mythos agent applies across all your projects — five built-in skills plus up to 100 of your own: written, imported, or generated.
- [Templates](https://docs.mythos.new/features/templates.md): Start a project from a ready-made gallery template (a remix, 5 credits) instead of a blank prompt — a complete multi-page scaffold in one click.
- [Version history](https://docs.mythos.new/features/version-history.md): Every build, edit, and save is a git commit in the project's private repo. Revert anytime — a revert is itself a new commit, so history is never erased.
- [Workspace editor](https://docs.mythos.new/features/workspace-editor.md): Edit your project files by hand in the in-browser code editor — open any file, save with Ctrl+S, autosave and Prettier-on-save, with a live preview.
- [GitHub repos](https://docs.mythos.new/integrations/github.md): Mythos keeps each project in a private Git repo and every build is a commit. Browse the history, roll back, and export the code to your own GitHub.
- [Integrations overview](https://docs.mythos.new/integrations/introduction.md): Mythos builds the frontend; you bring your own backend. Connect your own Supabase for data, auth, and storage; each project is a private Git repo.
- [Connect Supabase](https://docs.mythos.new/integrations/supabase.md): Connect your own Supabase project for a database, auth, and storage. Paste credentials or use OAuth; the agent wires forms and data into your backend.
- [Credits & pricing](https://docs.mythos.new/introduction/credits-and-usage.md): Mythos is pay-as-you-go. Buy credits once, spend them on builds and edits. No subscriptions, no monthly reset, no expiry. New accounts get 5 free credits.
- [Dashboard & workspace tour](https://docs.mythos.new/introduction/dashboard-overview.md): Find your way around Mythos — start a project from the prompt box, manage projects in the tray, and build or edit in the workspace: chat left, preview right.
- [Frequently asked questions](https://docs.mythos.new/introduction/faq.md): Answers to common Mythos questions — building apps, credits and billing, your own Supabase backend, publishing, and exporting your code to GitHub.
- [Quick start](https://docs.mythos.new/introduction/getting-started.md): Build and publish your first app with Mythos — sign in, describe what you want, iterate in chat, and ship to a live URL. Takes a few minutes.
- [Signing in & accounts](https://docs.mythos.new/introduction/sign-in.md): Sign in to Mythos with Google, GitHub, or a one-time email code. Accounts run on Supabase Auth; new accounts get 5 free credits on first confirmation.
- [Welcome to Mythos](https://docs.mythos.new/introduction/welcome.md): Mythos builds real React and Next.js apps from a plain-language prompt. Iterate in chat, connect your own Supabase, export to GitHub, and publish.
- [Fixing a build that isn't right](https://docs.mythos.new/prompting/debugging.md): When a Mythos build isn't what you wanted — how to phrase a correction prompt, revert to an earlier version, and when to open the code editor instead.
- [Writing good prompts](https://docs.mythos.new/prompting/writing-good-prompts.md): How to phrase your first Mythos prompt — name the sections, tone, and industry, flag any data-saving form, and use Plan mode to shape the build first.
- [Custom domains](https://docs.mythos.new/publishing/custom-domains.md): Custom domains let a published Mythos site live on your own address instead of your-name.r21.dev. This capability is coming soon and not yet available.
- [Publish your site](https://docs.mythos.new/publishing/publish.md): Build and deploy your project to a live, public URL at your-name.r21.dev — a short wizard for the URL, SEO, and review. Rename or unpublish anytime.
- [SEO & social previews](https://docs.mythos.new/publishing/seo.md): Set the title, description, icon, and social image for your published Mythos site. These are injected at publish and editable instantly without rebuilding.
- [Changelog](https://docs.mythos.new/reference/changelog.md): What shipped in Mythos, newest first — Plan mode, the neutral workspace, publishing, the BYO-Supabase Cloud console, files, skills, and crypto payments.
- [Glossary](https://docs.mythos.new/reference/glossary.md): Plain-language definitions of every Mythos term — credit, build, edit, Plan mode, workspace, publish, artifact, skill, BYO-Supabase — and the rename history.
- [Support policy](https://docs.mythos.new/reference/support-policy.md): How Mythos support works — the three ways to reach us, what support covers vs. what it does not, and the line between the platform and your code.
- [Troubleshooting](https://docs.mythos.new/reference/troubleshooting.md): Fixes for common Mythos issues — a failed-and-refunded build, a blank preview, a form that won't save, stale published content, and running out of credits.