experience-lwc-generate: Lightning Web Components Development
Use this skill when the user needs Lightning Web Components: LWC bundles, wire patterns, Apex/GraphQL integration, SLDS 2 styling, accessibility, performance work, or Jest unit tests.
When This Skill Owns the Task
Use experience-lwc-generate when the work involves:
lwc/**/*.js, .html, .css, .js-meta.xml
- component scaffolding and bundle design
- wire service, Apex integration, GraphQL integration
- SLDS 2, dark mode, and accessibility work
- Jest unit tests for LWC
Delegate elsewhere when the user is:
- writing Apex controllers or business logic first → platform-apex-generate
- building Flow XML rather than an LWC screen component → automation-flow-generate
- deploying metadata → platform-metadata-deploy
Required Context to Gather First
Ask for or infer:
- component purpose and target surface
- data source: LDS, Apex, GraphQL, LMS, or external system via Apex
- whether the user needs tests
- whether the component must run in Flow, App Builder, Experience Cloud, or dashboard contexts
- accessibility and styling expectations
Recommended Workflow
1. Choose the right architecture
Use the PICKLES mindset:
- prototype
- integrate the right data source
- compose component boundaries
- define interaction model
- use platform libraries
- optimize execution
- enforce security
2. Choose the right data access pattern
| Need | Default pattern |
|---|
| single-record UI | LDS / getRecord |
| simple CRUD form | base record form components |
| complex server query | Apex @AuraEnabled(cacheable=true) |
| related graph data | GraphQL wire adapter |
| cross-DOM communication | Lightning Message Service |
3. Start from an asset when useful
Use provided assets for:
- basic component bundles
- datatables
- modal patterns
- Flow screen components
- GraphQL components
- LMS message channels
- Jest tests
- TypeScript-enabled components
4. Validate for frontend quality
Check:
- accessibility
- SLDS 2 / dark mode compliance
- event contracts
- performance / rerender safety
- Jest coverage when required
5. Hand off supporting backend or deploy work
Use:
- platform-apex-generate for controllers / services
- platform-metadata-deploy for deployment
- platform-apex-test-run only for Apex-side test loops, not Jest
High-Signal Rules
- prefer platform base components over reinventing controls
- use
@wire for reactive read-only use cases; imperative calls for explicit actions and DML paths
- do not introduce inaccessible custom UI
- avoid hardcoded colors; use SLDS 2-compatible styling hooks / variables
- avoid rerender loops in
renderedCallback()
- keep component communication patterns explicit and minimal
Output Format
When finishing, report in this order:
- Component(s) created or updated
- Data access pattern chosen
- Files changed
- Accessibility / styling / testing notes
- Next implementation or deploy step
Suggested shape:
LWC work: <summary>
Pattern: <wire / apex / graphql / lms / flow-screen>
Files: <paths>
Quality: <a11y, SLDS2, dark mode, Jest>
Next step: <deploy, add controller, or run tests>
Local Development Server
Preview LWC components locally with hot reload — no deployment needed. Run the commands in scripts/local-dev-preview.sh to start a local dev session for a component, app, or Experience Cloud site.
Local Dev commands install just-in-time on first run. They are long-running processes that open a browser with live preview. Changes to .js, .html, and .css files auto-reload instantly. Requires an active org connection for data and Apex callouts.
Cross-Skill Integration
Reference File Index
Start here
- references/component-patterns.md [blocked] — component architecture patterns and bundle design
- references/slds-design-guide.md [blocked] — SLDS 2 styling, dark mode, CSS hooks
- references/lwc-best-practices.md [blocked] — high-signal rules and anti-patterns
- references/scoring-and-testing.md [blocked] — 165-point scoring rubric across 8 categories
- references/jest-testing.md [blocked] — Jest unit test patterns and async rendering helpers
- references/slds-blueprints.json [blocked] — machine-readable SLDS component blueprints
- references/cli-commands.md [blocked] — SF CLI commands for LWC development
Accessibility / performance / state
- references/accessibility-guide.md [blocked] — WCAG, ARIA, keyboard navigation patterns
- references/performance-guide.md [blocked] — lazy loading, debouncing, rerender safety
- references/state-management.md [blocked] — reactive state patterns and LMS
- references/template-anti-patterns.md [blocked] — common HTML template mistakes to avoid
Integration / advanced features
- references/lms-guide.md [blocked] — Lightning Message Service patterns
- references/flow-integration-guide.md [blocked] — Flow screen component design
- references/advanced-features.md [blocked] — Spring '26 features: TypeScript, lwc:on, GraphQL mutations
- references/async-notification-patterns.md [blocked] — toast, notifications, async flows
- references/triangle-pattern.md [blocked] — parent-child-sibling communication triangle
Asset templates
- assets/basic-component/basicComponent.js [blocked] — wire service, error/loading states, event dispatching
- assets/datatable-component/datatableComponent.js [blocked] — datatable with inline editing
- assets/flow-screen-component/flowScreenComponent.js [blocked] — Flow screen with input/output properties
- assets/form-component/formComponent.js [blocked] — form validation and DML patterns
- assets/graphql-component/graphqlComponent.js [blocked] — GraphQL wire adapter with cursor-based pagination
- assets/jest-test/componentName.test.js.example [blocked] — Jest test template (copy and rename, remove
.example suffix)
- assets/message-channel/lmsPublisher.js [blocked] — LMS publisher pattern
- assets/message-channel/lmsSubscriber.js [blocked] — LMS subscriber pattern
- assets/modal-component/modalComponent.js [blocked] — modal with focus trap and ESC handling
- assets/record-picker/recordPicker.js [blocked] — record picker with search
- assets/state-store/store.js [blocked] — reactive state store for cross-component state
- assets/typescript-component/typescriptComponent.ts [blocked] — TypeScript-enabled component (Spring '26)
- assets/workspace-api/workspaceComponent.js [blocked] — workspace API for tab and focus management
- assets/apex-controller/LwcController.cls [blocked] — Apex controller with
@AuraEnabled(cacheable=true) patterns
Scripts
- scripts/local-dev-preview.sh [blocked] — local dev server commands for component, app, and site preview
Score Guide
| Score | Meaning |
|---|
| 150+ | production-ready LWC bundle |
| 125–149 | strong component with minor polish left |
| 100–124 | functional but review recommended |
| < 100 | needs significant improvement |