tmt-design git:20261031.cb231a0B

Immutable. This exact content never changes and is served at /api/v1/blob/547cee7cc8eac1d1.

---
name: tmt-design
description: Build and check the handbook site. Load when editing site/**.
---

# Handbook site

For `design/browser-ui/` work, read [the leaf README](../../../design/browser-ui/README.md)
and [the component guide](../../../design/gui-components.md) first.

Static site in `site/` with its own lockfile outside the TypeScript workspace.
The full local build renders the v9 Home (`home/HomePage.tsx`), including installation,
workflow and Squad/Colab illustrations, plus the English `/colab/` landing exploration
(`colab/ColabLanding.tsx`). Its feature close-ups are illustrations; only the developer embed sends requests.
Layout owns theme, language and anchor scrolling;
the router preserves `/colab/` and normalizes old chapter/unknown paths to the localized Home. Retained MDX,
chapter components and translations are source-only for future refinement: the Home
entry point does not import or render them. Do not restore chapter exposure implicitly.
`scripts/spa-routes.mjs` publishes four Home entries with Home-only alternates/canonicals, the English Colab
entry with its own canonical,
noindex redirect stubs for historical chapter/zh paths, and a noindex Home-app 404 fallback.

Merging `site/**` or `design/tokens/**` to `main` deploys only the blog to GitHub Pages
(`.github/workflows/site.yml`); PRs never deploy. Source-only chapter scene behavior remains
covered here. No handbook prose is authored by OpenAI members.

```sh
cd site
pnpm install --frozen-lockfile
pnpm dev                        # http://127.0.0.1:5173/tmt/
pnpm check                      # types, Vite+ lint/format, MDX imports, translation sync
SITE_ORIGIN=https://example.com SITE_REPOSITORY=owner/repository pnpm build              # four Homes, Colab landing, historical redirect stubs
SITE_ORIGIN=https://example.com SITE_REPOSITORY=owner/repository SITE_BASE=/ pnpm build  # root path or custom domain
SITE_BASE=./ VITE_SITE_HISTORY=hash pnpm exec vp build   # preview at an unknown path
```

Run `pnpm docs:format:check` from `typescript/` before pushing doc edits; bare
prettier skips docs. A blank line inside `<Code>`/`<Cmd>` in MDX lets the formatter
swap `*` and `_` in samples: grep and run samples after formatting.

## Blog

Marketing owns and reviews the blog end to end (`site/src/blog/` code and `site/src/posts/`);
GUI reviews shared site behavior outside it. English posts live at the slug root; independently approved translations live under
its `ja/`, `zh-hant/` or `zh-hans/` directory. Each translated directory needs its
own `languageExceptions` entry with its first approved post. See [site README](../../../site/README.md#blog)
for language URLs, English fallback, the approval protocol and commands.

Vite builds complete blog HTML plus external bundled article modules into the
same full `site/dist` build as Home; URLs derive from `SITE_ORIGIN` plus `SITE_BASE` plus `blog/`
(a production build requires `SITE_ORIGIN`; the workflow derives it from the repository owner).
Preserve the existing blog CSP: no inline scripts or new resource origins.
`pnpm blog:demo` is an explicit local example build; production verification
rejects it by default. Only the existing `site.yml` Build site job checks/builds, runs
`node src/blog/pages.mjs` and `node src/blog/verify-dist.mjs --pages`, then uploads
`site/dist-pages`. That directory retains blog routes/data and their reachable
assets, a root redirect to the blog and a static 404 with blog/repository links.
Home/handbook/Colab source stays intact but is not published. `SITE_REPOSITORY`
(`owner/repository`) or Actions' `GITHUB_REPOSITORY` supplies blog outbound links;
production requires it. The site guide owns the build/preview commands;
do not add a second Pages deployment or a native CI consumer.

## Translations

English is the source. Languages are `ja`, `zh-hant`, `zh-hans`; a language is
allowed once `languageExceptions` in `.github/repository-layout.json` lists its
directory, and [AGENTS](../../../AGENTS.md#repository-content-language) owns the
exception (front matter, keys, code, comments, tests and commits stay English).

- Public Home exists at `/`, `/ja/`, `/zh-hant/` and `/zh-hans/`; `/zh/` redirects
  to Traditional Chinese Home. Historical chapter URLs resolve to Home in the same
  locale. The language dropdown sets `<html lang>` and preserves Home anchors.
- A translation's front matter is kept out of the page and exported as `frontmatter`;
  `scripts/mdx-imports.mjs` checks translated pages too.
- A page `site/src/chapters/<page>.mdx` is translated as
  `site/src/i18n/<lang>/<page>.mdx` with front matter `source`, `sourceRevision`
  (`git hash-object site/src/chapters/<page>.mdx`) and `title`. After updating a
  translation set `sourceRevision` to the new blob SHA. A stale source is a warning
  (CI annotation); missing front matter, a wrong `source` or a malformed
  `sourceRevision` fails `pnpm check`. A page without a file falls back to English.
- UI and home strings override `site/src/lang/strings.ts` key by key in
  `site/src/i18n/<lang>/strings.json`, whose reserved `"$source"` object
  (`source` and `sourceRevision` of `strings.ts`) is never merged and is checked the
  same way.
- Keep in English: command names, flags and ids, `talk`, `reply`, `receipt`, board
  marks, sample output and code. A translated heading keeps the English slug as an
  explicit id (`<h3 id="install">安裝</h3>`), because `slug()` drops non-Latin text.
- `zh-hant` is Traditional Chinese with Taiwan usage and also keeps `agent`,
  `driver`, `harness`, `board`, `colab`, `meet` (窗格 pane, 終端機 terminal, 擴充套件
  extension, 卡住 blocked, 恢復 resume). `zh-hans` is translated directly from English
  with Mainland usage (文件, 设置, 程序, 服务器, 默认).
- `scripts/spa-routes.mjs` writes Home-only `<html lang>` and `hreflang` alternates;
  `SITE_ORIGIN` makes them fully qualified. Retained chapters do not get alternates.

## Reviewing translations

Before approving a translation PR, check that every `sourceRevision` equals the English blob
on the base, that heading ids, links and `<Cmd>`/`<Code>` bytes equal the English, and look at
light captures at 1440 and 390 pixels wide. CLI-look reviews apply
[`design/cli-style.md`](../../../design/cli-style.md).