murashit_codex-panel/docs/development.md
2026-05-31 13:18:32 +09:00

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# Development
```sh
npm ci
npm run format
npm run check
npm run build
```
Run `npm run format` after edits and before `npm run check` so Prettier-only issues are fixed upfront. `npm run check` runs TypeScript type checking, unit tests, ESLint, Prettier check, and a production esbuild bundle.
The local `npm run check` path runs checks in parallel and uses local caches for TypeScript, Vitest, ESLint, and Prettier. Use `npm run check:ci` when you need to reproduce the sequential, non-cached CI validation path.
`main.js`, `styles.css`, `data.json`, and `node_modules/` are ignored by Git. `main.js` and `styles.css` are still the files Obsidian loads, so run `npm run build` after source changes.
CSS is authored in `src/styles/` and generated into the ignored root `styles.css` release asset. Use `npm run build:styles` when only regenerating CSS, or `npm run build:styles:check` to verify that the authored CSS can be rendered.
## Source Layout
The source tree is organized by responsibility rather than by the original single Obsidian plugin entrypoint:
- `src/main.ts` registers Obsidian views, commands, settings, and lifecycle hooks.
- `src/app-server/` owns app-server transport, connection lifecycle, compatibility helpers, and RPC facades.
- `src/features/chat/` owns the main Codex chat surface: Obsidian `ItemView` classes, panel orchestration, request/app-server controllers, composer behavior, display models, chat-only UI renderers, approvals, user input, thread actions, and panel-specific state.
- `src/features/threads-view/` owns the dedicated Obsidian thread list view, including app-server thread list rendering and live open-panel snapshot aggregation.
- `src/features/selection-rewrite/` owns the Markdown editor selection rewrite command, popover, prompt/output handling, and ephemeral rewrite thread runner.
- `src/runtime/` owns Codex runtime configuration projection, model metadata, collaboration mode, and compact labels used by views.
- `src/shared/` contains feature-neutral helpers, including reusable DOM pieces and unified diff display helpers shared by chat and selection rewrite.
- `src/settings/` contains Obsidian settings models, settings-tab rendering, and app-server-backed dynamic settings data.
- `src/domain/threads/` contains thread title, reference, and archive export helpers shared outside the chat feature.
- `src/styles/` contains the authored CSS modules and `manifest.json` concatenation order. `scripts/build-styles.mjs` concatenates them into the ignored root `styles.css`, which remains the Obsidian release asset.
Keep new code near the state or API it owns. Feature code should not import from another feature directly; move shared behavior to `src/shared/`, `src/domain/`, `src/app-server/`, or `src/runtime/` when more than one feature needs it.
Codex Panel's runtime UI is Preact-owned through `preact/compat`. Keep chat panel UI, the Threads view, and the selection rewrite popover in Preact components, using the React-compatible adapter layer until a targeted compat-removal pass is worthwhile. Imperative DOM writes are limited to explicit bridge modules or Obsidian-owned API boundaries such as `MarkdownRenderer`, diff rendering, icon rendering, `SuggestModal`, and the Obsidian `Setting`-based settings tab. ESLint enforces this boundary with allowlisted bridge files; add a new allowlist entry only when the code is genuinely bridging an external DOM API.
The bundled UI runtime should stay on Preact rather than React/React DOM. This avoids React DOM runtime code that creates `<script>` elements and can be flagged by Obsidian Community plugin review automation, while preserving the current component model through `preact/compat`. Do not reintroduce `react`, `react-dom`, `@types/react`, or `@types/react-dom` unless the review tradeoff is explicitly revisited.
## App-Server Bindings
The app-server TypeScript bindings in `src/generated/app-server/` are generated from the installed Codex CLI:
```sh
npm run generate:app-server-types
npm run check
```
The generation script uses `codex app-server generate-ts --experimental` because the panel depends on experimental app-server fields such as collaboration mode and generated v2 types.
## API Baselines
Use the local API baseline report when checking whether the development environment matches the supported API policy:
```sh
npm run api:baseline
npm run api:baseline:check
```
Obsidian API compatibility follows semver within the guaranteed minor. `manifest.json` and `versions.json` define the minimum supported Obsidian app minor with a `.0` patch version, while the `obsidian` npm dev dependency tracks the latest patch in that same minor using a `~` range. When the Obsidian API minor is raised, update `manifest.json`, `versions.json`, README requirements, and the `obsidian` dev dependency together.
Codex app-server compatibility is managed by Codex CLI minor version. README records the tested Codex CLI patch version, and the baseline check verifies that the local `codex --version` is in the same minor before app-server binding or compatibility work.