Standalone Install Note

If this environment only installed the current skill, start from the CloudBase main entry and use the published cloudbase/references/... paths for sibling skills.

• CloudBase main entry: https://cnb.cool/tencent/cloud/cloudbase/cloudbase-skills/-/git/raw/main/skills/cloudbase/SKILL.md
• Current skill raw source: https://cnb.cool/tencent/cloud/cloudbase/cloudbase-skills/-/git/raw/main/skills/cloudbase/references/web-development/SKILL.md

Keep local references/... paths for files that ship with the current skill directory. When this file points to a sibling skill such as auth-tool or web-development, use the standalone fallback URL shown next to that reference.

Web Development

Activation Contract

Use this first when

• The request is to implement, integrate, debug, build, deploy, or validate a Web frontend or static site.
• The design direction is already decided, or the user is asking for engineering execution rather than visual exploration.
• The work involves React, Vue, Vite, routing, browser-based verification, or CloudBase Web integration.

Read before writing code if

• The task includes project structure, framework conventions, build config, deployment, routing, or frontend test and validation flows.
• The request includes UI implementation but the visual direction is already fixed; otherwise read ui-design first.

Then also read

• General React / Vue / Vite guidance -> frameworks.md
• Browser flow checks or page validation -> browser-testing.md
• Login flow -> ../auth-tool/SKILL.md (standalone fallback: https://cnb.cool/tencent/cloud/cloudbase/cloudbase-skills/-/git/raw/main/skills/cloudbase/references/auth-tool/SKILL.md), then ../auth-web/SKILL.md (standalone fallback: https://cnb.cool/tencent/cloud/cloudbase/cloudbase-skills/-/git/raw/main/skills/cloudbase/references/auth-web/SKILL.md)
• CloudBase database work -> matching database skill

Do NOT use for

• Visual direction setting, prototype-first design work, or pure aesthetic exploration.
• Mini programs, native Apps, or backend-only services.

Common mistakes / gotchas

• Starting implementation before clarifying whether the task is design or engineering execution.
• Mixing framework setup, deployment, and CloudBase integration concerns into one vague change.
• Treating cloud functions as the default solution for Web authentication.
• Skipping browser-level validation after a UI or routing change.
• In an existing application, detouring into UI redesign or broad repo sweeps before patching the current handlers and services.

When to use this skill

Use this skill for Web engineering work such as:

• Implementing React or Vue pages and components
• Setting up or maintaining Vite-based frontend projects
• Handling routing, data loading, forms, and build configuration
• Running browser-based validation and smoke checks
• Integrating CloudBase Web SDK and static hosting when the project needs CloudBase capabilities

Do NOT use for:

• UI direction or visual system design only; use ui-design
• Mini program development; use miniprogram-development
• Backend service implementation; use cloudrun-development or cloud-functions

How to use this skill (for a coding agent)

1. Clarify the execution surface

   • Confirm whether the task is framework setup, page implementation, debugging, deployment, validation, or CloudBase integration.
   • Keep the work scoped to the actual Web app surface instead of spreading into unrelated backend changes.
   • If the workspace is an existing application with TODOs, treat it as a targeted repair task, not a greenfield build.

2. Follow framework and build conventions

   • Prefer the existing project stack if one already exists.
   • For new work, treat Vite as the default bundler unless the repo or user constraints say otherwise.
   • Put reusable app code under src and build output under dist unless the repo already uses a different convention.
   • In an existing application with fixed structure, inspect the files that already own the flow before reading broad docs: src/lib/backend.*, src/lib/auth.*, src/lib/*service.*, route guards, and the page handlers bound to submit buttons.

3. Validate through the browser, not only by reading code

   • For interaction, routing, rendering, or regression checks, use agent-browser workflows from browser-testing.md.
   • Prefer lightweight smoke validation for changed flows before claiming the frontend work is complete.

4. Treat CloudBase as an integration branch

   • Use CloudBase Web SDK and static hosting guidance only when the project actually needs CloudBase platform features.
   • Reuse auth-tool and auth-web for login or provider readiness instead of re-describing those flows here.

Core workflow

1. Choose the right engineering path

• React / Vue feature work: implement within the app's existing component, routing, and state conventions
• New Web app: prefer Vite unless the repo already standardizes on another toolchain
• Debugging and regressions: reproduce in browser, narrow to a specific page or interaction, then patch
• CloudBase integration: wire in Web SDK, auth, data, or static hosting only after the base frontend path is clear

2. Keep implementation grounded in project reality

• Follow the repo's package manager, scripts, and lint/test patterns
• Avoid framework rewrites unless the user explicitly asks for one
• Prefer the smallest viable page/component/config change that satisfies the task
• In TODO-based apps, complete the existing implementation directly instead of creating parallel helpers, sample pages, or detached prototypes

3. Validate changed flows explicitly

• Run the relevant local build or test command when available
• Open the affected page or flow in a browser when behavior depends on rendering, interaction, or navigation
• Record what was checked: route, action, expected result, and any remaining gap

CloudBase Web integration

Use this section only when the Web project needs CloudBase platform features.

Web SDK rules

• Prefer npm installation for React, Vue, Vite, and other bundler-based projects
• Use the CDN only for static HTML pages, quick demos, embedded snippets, or README examples
• Only use documented CloudBase Web SDK APIs; do not invent methods or options
• Keep a shared app or auth instance instead of re-initializing on every call
• If the user only provides an environment alias, nickname, or other shorthand, resolve it to the canonical full EnvId before writing SDK init code, console links, or config files. Do not pass alias-like short forms directly into cloudbase.init({ env }).

Authentication boundary

• Authentication must use CloudBase SDK built-in features
• Do not move Web login logic into cloud functions
• For provider readiness, login method setup, or publishable key issues, route to auth-tool and auth-web

Static hosting defaults

• Build before deployment
• Prefer relative asset paths for static hosting compatibility
• Use hash routing by default when the project lacks server-side route rewrites
• If the user does not specify a root path, avoid deploying directly to the site root by default

CloudBase quick start

// npm install @cloudbase/js-sdk
import cloudbase from "@cloudbase/js-sdk";

const app = cloudbase.init({
  env: "your-full-env-id", // Canonical full CloudBase environment ID resolved from envQuery or the console
});

const auth = app.auth();