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Transaction Science 608cd843e9 wai-app: Create's crate, a library with no binary, whose export wai create writes

wai/wai-ui becomes wai/wai-app, the library `wai_app`, with no binary and no `cli`
feature: `wai`, built with its feature `app`, is its command line and its MCP
server. Its served files are named wai-app-* (the WebAssembly package wai_app),
the recordings wai-app-*.json.

- export.rs gives the files of a starter project for a program and the facts its
  project file holds (title, summary, `wai dev`'s mode for the app's room, a watch
  room's file, a show's audience); `wai create --from app.oui` writes them, the
  project file and the licence. The export no longer writes app.json, room.toml,
  relay.toml, package.json, check.mjs or serve.mjs: wai.json names the room, `wai
  dev` runs it and `wai app check` checks the project. Its README and AGENTS.md
  say so, and the README its licence.
- runtime.rs reads a Create runtime by its listing (create/wai-app-runtime.json),
  checking each file's SHA-256.
- bridge.rs keeps the bridge on 127.0.0.1 a coding agent streams a program into
  the page through, with a stream helper; the stdio server, its tools and the
  binary's test go (`wai mcp --toolset app` serves them).
- The page's Export hands over app.oui, the program in its canonical form, and the
  command that makes it a project; the ZIP writer and the page's export in
  WebAssembly go. The page names `wai mcp --toolset app` for the coding agent.
- joule-ui/docs/create.md §4 and §5: the export as `wai create --from app.oui`, and
  the agent's tools app_guide, app_check, app_stream and app_export.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

2026-10-27 05:13:27 -04:00

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This is a WAI app. app.oui is the app, written in joule-ui's line language (SPEC §11 of joule-ui): one widget a line, name = Widget(arguments), root first. The page renders it with the WAI widgets in vendor/create/, and wai dev runs the room that wai.json names.

To change the app, edit app.oui, then run wai app check. A line the registry does not accept is refused with its line and a reason code; fix that line.
Keep wai.json's dev block matching the app's room: a Room is "mode": "room"; a WatchTogether is "mode": "watch" with "watch": "media/<source>" (and "watch_ms" for a file that is not WAV); a Show is "mode": "show" with "audience" equal to its audience.
Run it with wai dev; wai dev --check checks every piece and stops.
Do not edit vendor/: it is the runtime, checked file by file against vendor.json.
Never put a key, a token or any other secret in this repository. Development keys are made in .wai/ by wai dev and stay there.
WAI's tools for a coding agent: wai mcp --toolset core,dev,app (wai setup-agent registers it). app_check checks a program, as wai app check does.

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The language and the widgets

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