Rsbuild Best Practices
- 1.8k installs
- 86 repo stars
- Updated August 4, 2026
- rstackjs/agent-skills
A guide to configuration, CLI usage, type checking, bundle optimization, asset management, and debugging patterns for Rsbuild projects.
About
Rsbuild best practices covers configuration patterns (rsbuild.config.ts, defineConfig, explicit entry points), CLI workflows (rsbuild, rsbuild build, rsbuild preview, rsbuild inspect), and optimization strategies including dynamic imports, bundle size reduction, and asset management. Developers use this when writing or reviewing Rsbuild projects, setting up type checking with @rsbuild/plugin-type-check or tsc, managing public vs. source-managed assets, and debugging config resolution or plugin behavior via DEBUG=rsbuild. Key workflows include inspecting final configs, profiling with Node CPU profiling and RSPACK_PROFILE=OVERVIEW, and ensuring production source maps are not published.
- Use rsbuild.config.ts with defineConfig; defer to tools.rspack/tools.bundlerChain only when no first-class option exists
- Type checking via @rsbuild/plugin-type-check for integrated dev/build checks or explicit tsc/vue-tsc scripts
- Dynamic import() for non-critical code; lightweight libraries and aligned browserslist for bundle optimization
- Import managed assets from source directories, reference public files by absolute URL path; never publish .map files to
- Debug with DEBUG=rsbuild for config resolution, inspect dist/.rsbuild for final config, use Node CPU profiling and RSPAC
Rsbuild Best Practices by the numbers
- 1,849 all-time installs (skills.sh)
- +116 installs in the week ending Aug 5, 2026 (Skillselion tracking)
- Ranked #260 of 2,245 Frontend Development skills by installs in the Skillselion catalog
- Security screen: LOW risk (skills.sh audit)
- Data as of Aug 5, 2026 (Skillselion catalog sync)
rsbuild-best-practices capabilities & compatibility
- Capabilities
- config validation against best practices · bundle size analysis and optimization recommenda · type checking integration guidance · debugging troubleshooting via debug and inspecti · multi page application setup patterns · asset management strategies
- Use cases
- debugging · documentation · refactoring
- Platforms
- macOS · Windows · Linux
- Runs
- Runs locally
- Pricing
- Free
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| Installs | 1.8k |
|---|---|
| repo stars | ★ 86 |
| Security audit | 3 / 3 scanners passed |
| Last updated | August 4, 2026 |
| Repository | rstackjs/agent-skills ↗ |
What it does
Configure, optimize, and debug Rsbuild projects with best practices for config, CLI workflows, type checking, and bundle size.
Who is it for?
Teams building web applications with Rsbuild/Rspack; frontend developers optimizing bundle size and build performance; code reviewers checking Rsbuild project quality.
Skip if: Non-Rsbuild projects; backend-only teams; build systems using Webpack or Vite exclusively.
When should I use this skill?
Writing or reviewing Rsbuild project config; optimizing bundle size; debugging build failures or config issues; setting up type checking in dev/build pipelines.
What you get
Following these practices ensures correct Rsbuild configuration, faster builds, smaller bundles, proper asset management, and straightforward debugging.
- Rsbuild config file (rsbuild.config.ts)
- CLI commands for dev/build/preview
- Type checking setup
By the numbers
- Covers 8 major practice areas: configuration, CLI, type checking, bundle optimization, assets, security, debugging, prof
- Documents 2 official documentation sources: v2 (rsbuild.rs/llms.txt) and v1 (v1.rsbuild.rs/llms.txt)
Files
Rsbuild Best Practices
Apply these rules when writing or reviewing Rsbuild projects.
Configuration
- Use
rsbuild.config.tsanddefineConfig - Use
tools.rspackortools.bundlerChainonly when no first-class Rsbuild option exists - Define explicit
source.entryvalues for multi-page applications - In TypeScript projects, prefer
tsconfig.jsonpath aliases first
CLI
- Use
rsbuildfor local development - Use
rsbuild buildfor production build - Use
rsbuild previewonly for local production preview - Use
rsbuild inspectto inspect final Rsbuild/Rspack configs
Type checking
- Use
@rsbuild/plugin-type-checkfor integrated dev/build type checks - Or run
tsc --noEmit/vue-tsc --noEmitas an explicit script step
Bundle size optimization
- Prefer dynamic
import()for non-critical code paths - Prefer lightweight libraries where possible
- Keep browserslist aligned with real compatibility requirements
Asset management
- Import source-managed assets from project source directories, not from
public - Reference
publicfiles by absolute URL path
Security
- Do not publish
.mapfiles to public servers/CDNs when production source maps are enabled
Debugging
- Run with
DEBUG=rsbuildwhen diagnosing config resolution or plugin behavior - Read generated files in
dist/.rsbuildto confirm final config, not assumed config
Profiling
- Use Node CPU profiling (
--cpu-prof) when JavaScript-side overhead is suspected - Use
RSPACK_PROFILE=OVERVIEWand analyze trace output for compiler-phase bottlenecks
Documentation
- For the latest (v2) docs, read http://rsbuild.rs/llms.txt
- For Rsbuild v1 docs, read http://v1.rsbuild.rs/llms.txt
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When should I use tools.rspack or tools.bundlerChain?
Only when no first-class Rsbuild option exists for your use case. Prefer built-in Rsbuild config options first.
How do I check if my production build is optimized?
Use rsbuild inspect to review final config, check dist/.rsbuild output, and profile with Node CPU profiling (--cpu-prof) or RSPACK_PROFILE=OVERVIEW to identify bottlenecks.
Should I publish source maps to production?
No. If production source maps are enabled, do not publish .map files to public servers or CDNs.
Is Rsbuild Best Practices safe to install?
skills.sh reports 3 of 3 security scanners passed. Review the Security Audits panel on this page before installing in production.