# Bundle sizes — vapor-chamber v1.16.0 All numbers are **minified, comment-free brotli/gzip** — esbuild `--minify` for the ESM exports (so comments never count), the pre-minified `.min.js` for IIFE, then brotli q=11 / gzip level 9. This is the real over-the-wire cost of the *code*, not the commented source. Regenerated by `npm run size:doc`, verified fresh in CI. Hard ceilings: `scripts/check-size.mjs`. ## ESM subpath exports Each row is the cost of importing **only that export**, bundled self-contained with `vue` external. **Read this carefully:** the shared command-bus core (~3.6 KB brotli on its own) is included in *every* row, so the rows are **not additive** — importing two exports does not cost their sum (the core is shared once). `.` is the full main barrel measured *import-everything*; your app's tree-shaking drops whatever you don't use (e.g. importing just `createCommandBus` from it is ~3.6 KB brotli, not 24.4 KB). | export | min KB | gzip KB | brotli KB | |---|--:|--:|--:| | `.` | 83.0 | 27.7 | 24.4 | | `./transports` | 11.8 | 4.7 | 4.2 | | `./directives` | 19.4 | 6.9 | 6.2 | | `./transitions` | 17.4 | 6.2 | 5.6 | | `./ssr` | 1.6 | 0.8 | 0.7 | | `./vite` | 3.0 | 1.3 | 1.2 | | `./fast-lane` | 0.9 | 0.5 | 0.4 | | `./observable` | 0.5 | 0.3 | 0.2 | | `./standard-schema` | 1.7 | 0.8 | 0.7 | | `./alien-signals` | 1.0 | 0.6 | 0.5 | | `./reactive` | 16.7 | 6.0 | 5.4 | | `./vue` | 22.9 | 8.3 | 7.4 | | `./outbox` | 5.1 | 2.2 | 1.9 | | `./mcp` | 4.4 | 2.1 | 1.9 | | `./router` | 35.2 | 13.6 | 12.3 | | `./router/vdom` | 0.8 | 0.4 | 0.4 | | `./router-fetch` | 9.9 | 4.3 | 3.9 | | `./iife` | 39.9 | 13.6 | 12.1 | | `./iife-core` | 25.8 | 8.6 | 7.7 | | `./iife-elements` | 29.1 | 9.8 | 8.8 | | `consumer: createCommandBus + logger + createHttpBridge` | 19.3 | 7.1 | 6.4 | ## IIFE variants (`