# AGENTS.md — Atalaya

## Architecture

pnpm workspace: Cloudflare Worker (`src/`) + Astro 6 SSR app (`status-page/`).

- **Worker entrypoint**: `src/index.ts` — `fetch` + `scheduled` handlers, `RegionalChecker` Durable Object
- **Astro entrypoint**: `status-page/src/pages/index.astro` — single-page SSR app
- **Static assets**: `status-page/dist/client/` served via `ASSETS` binding (`run_worker_first = true`)
- **Shared types**: `src/types.ts` imported via `@worker/types` alias in `status-page/tsconfig.json`
- **Auth**: `status-page/src/lib/auth.ts`, configured via `STATUS_PUBLIC`, `STATUS_USERNAME`, `STATUS_PASSWORD` env vars
- **Monitor config**: YAML inline in `wrangler.toml` `MONITORS_CONFIG` env var. Secrets interpolated via `${ENV_VAR}` syntax (`src/utils/interpolate.ts`).

## Commands

### Root (Worker)

```bash
pnpm dev                   # wrangler dev
pnpm test                  # vitest (20 test files)
pnpm typecheck             # tsc --noEmit
pnpm check                 # typecheck + lint + format:check
pnpm check:fix             # auto-fix lint + format
pnpm deploy                # build:pages + wrangler deploy
pnpm lint:strict           # oxlint --deny warnings + eslint --max-warnings=0
vitest run src/path/to.test.ts  # single test (no npx needed)
```

### Pages workspace

```bash
pnpm dev:pages             # astro dev
pnpm build:pages           # astro build → status-page/dist/
pnpm test:pages            # vitest (3 test files)
pnpm check:pages           # astro check + tsc --noEmit + eslint
pnpm lint:pages            # eslint (astro plugin)
```

### Verification order

Before commit: `pnpm check && pnpm test && pnpm build:pages && pnpm check:pages`

## Gotchas

- **`.js` extensions in imports**: All worker imports use `.js` extensions (`import { foo } from './bar.js'`). Required for ESM resolution with `moduleResolution: "bundler"`.
- **D1 requires bind parameters**: Use `WHERE 1=?` with `.bind(1)` for queries that would otherwise have no parameters.
- **Database naming**: D1 columns are `snake_case`, TypeScript properties are `camelCase`. Map at query boundary.
- **`--legacy-peer-deps`**: Not needed with pnpm. If peer issues arise, configure `peerDependencyRules` in `pnpm-workspace.yaml`.
- **Pages `dist/` and `.astro/`**: Build artifacts, gitignored.
- **Astro SSR build artifact**: Worker dynamically imports `../status-page/dist/server/index.mjs` at runtime — uses `@ts-expect-error`.
- **Astro 6 + @astrojs/cloudflare v13 workarounds**: `status-page/astro.config.mjs` includes `fixBuildRollupInput` plugin and `prerenderEnvironment: 'node'`.

## Code Style

- **Formatting**: Prettier — single quotes, semicolons, 100 char width, trailing commas ES5, no arrow parens.
- **Linting**: Oxlint (worker) + ESLint with `eslint-plugin-oxlint` dedup. Pages uses `eslint-plugin-astro`.
- **Types**: `type` for aliases, `interface` for object shapes. Explicit return types.
- **Naming**: files `kebab-case.ts`, types `PascalCase`, variables `camelCase`, DB fields `snake_case`.
- **Tests**: `*.test.ts` colocated with source. Vitest with `vi` for mocks.