withastro/astro

Astro exposes developer commands alongside site-facing routing, rendering, actions, content, and image capabilities. Interactive components are hydrated according to client directives rather than requiring one application-wide client runtime. Integrations supply framework renderers and deployment-specific behavior. The inspected feature set also includes sessions, caching, internationalization, browser navigation, and font providers, but is not an exhaustive catalog of all workspace products.

• The CLI recognizes add, sync, telemetry, preferences, dev, build, preview, check, create-key, docs, and info, plus help/version behavior.
  packages/astro/src/cli/index.ts#L18-39packages/astro/src/cli/index.ts#L72-87
• astro dev provides stop, status, and logs subcommands, explicit background startup, agent-inferred background startup, and --ignore-lock behavior.
  packages/astro/src/cli/dev/index.ts#L121-170packages/astro/src/cli/dev/index.ts#L181-199
• astro build accepts output-directory, mode, development-output, and force flags; force is documented as clearing content caches for a full rebuild.
  packages/astro/src/cli/build/index.ts#L9-36
• File-based routes include .astro and supported Markdown extensions, with bracket parameters and spread parameters parsed into RoutePart records.
  packages/astro/src/core/routing/create-manifest.ts#L44-71packages/astro/src/core/routing/create-manifest.ts#L121-145
• Matched endpoints execute renderEndpoint(); page routes obtain props and a rendering result before calling renderPage(), including streaming and slot inputs.
  packages/astro/src/core/pages/handler.ts#L29-59
• Astro Actions support JSON and FormData handlers with optional Zod input schemas; RPC calls return serialized responses while form calls leave results in locals for page rendering.
  packages/astro/src/actions/runtime/server.ts#L34-60packages/astro/src/actions/runtime/server.ts#L75-127packages/astro/src/actions/handler.ts#L65-86
• The file content loader reads JSON, YAML, or TOML, accepts custom parsers, validates entries through parseData(), and reloads the collection on watched file changes.
  packages/astro/src/content/loaders/file.ts#L29-50packages/astro/src/content/loaders/file.ts#L99-113packages/astro/src/content/loaders/file.ts#L120-141
• getCollection() reads stored content and resolves image references; live collections instead call loader.loadCollection() and apply their schema at runtime.
  packages/astro/src/content/runtime.ts#L102-134packages/astro/src/content/runtime.ts#L281-321
• Browser islands recognize load, idle, visible, media, and only directives, dynamically import component and renderer modules, and dispatch astro:hydrate after hydration.
  packages/astro/src/runtime/server/astro-island.ts#L5-15packages/astro/src/runtime/server/astro-island.ts#L139-178packages/astro/src/runtime/server/astro-island.ts#L248-259
• The image endpoint parses transformation URLs, loads allowed remote or local sources, invokes the configured image service, and returns transformed bytes with cache and ETag headers.
  packages/astro/src/assets/endpoint/shared.ts#L51-82packages/astro/src/assets/endpoint/shared.ts#L99-114
• astro/fetch exposes composable sessions, redirects, actions, i18n, and cache handlers; navigate() performs browser transitions and warns once when called during server rendering.
  packages/astro/src/core/fetch/index.ts#L73-128packages/astro/src/transitions/router.ts#L584-598
• The fontProviders registry exposes Adobe, Bunny, Fontshare, Fontsource, Google, Google Icons, local, and npm provider factories.
  packages/astro/src/assets/fonts/providers/index.ts#L166-175