Agent-Safe Angular Components: Copy-Paste MCP + Skills Setup for Verified AI Development

With Angular v22, the MCP server and Angular Skills stack enables deterministic, verifiable agent-assisted development. The setup requires configuring MCP servers for Angular CLI and Chrome DevTools, installing Angular skills packages, and implementing exhaustive `@switch` blocks with `assertNever` guards to prevent agents from shipping broken code. Signal Forms further reduce agent errors by providing type-safe, signal-driven form handling that fails compilation on unhandled cases.

With Angular v22, the MCP Model Context Protocol server + Angular Skills stack transforms agent-assisted development from a risky proposition into a deterministic, verifiable workflow. This guide walks you through configuring your environment, setting up the right skills, and building agent-safe components. Ensure you have: node --version npm install -g @angular/cli@latest The Angular CLI ships with the MCP server built-in. Configure it in your agent's settings: For Gemini CLI / Cursor / Claude Code using .gemini/settings.json or equivalent : { "mcpServers": { "angular-cli": { "command": "npx", "args": "-y", "@angular/cli", "mcp" }, "chrome-devtools": { "command": "npx", "args": "chrome-devtools-mcp@latest" } } } For JetBrains IDEs Settings → Tools → MCP : angular-cli npx -y @angular/cli mcp chrome-devtools npx chrome-devtools-mcp@latest Test the connection: npx @angular/cli mcp --health-check You should see a list of available tools. Common ones: ng lint — runs the linter on your project get examples — fetches best-practice code examples get best practices — retrieves the Angular Best Practices Guide search documentation — queries angular.dev dev server.wait for build — blocks until build succeeds/fails critical for agents dev server.start — starts the dev server dev server.stop — stops the dev serverSkills are installed separately from MCP tools. They augment the agent's knowledge without adding token overhead to every request. Install the official Angular skills: Using npx skills package npx @anthropic-ai/skills add \ https://github.com/angular/skills/blob/main/angular-developer/SKILL.md \ --name angular-developer npx @anthropic-ai/skills add \ https://github.com/angular/skills/blob/main/angular-new-app/SKILL.md \ --name angular-new-app Or, if your agent supports URL-based skills, reference directly: /skills install https://github.com/angular/skills/blob/main/angular-developer/SKILL.md /skills install https://github.com/angular/skills/blob/main/angular-new-app/SKILL.md Verify installation: In your agent Gemini CLI, etc. /skills list You should see angular-developer and angular-new-app listed. This gives agents visibility into your running application: npx chrome-devtools-mcp@latest --install Test it: npx chrome-devtools-mcp@latest --health-check With MCP + Skills configured, your agent has access to build verification and browser visibility. Now write code that agents can safely modify. Always use exhaustive @switch https://dev.to/switch blocks. This prevents agents from introducing unhandled cases. // ✓ Good: Type-safe, exhaustive union export type VehicleStatus = 'idle' | 'transit' | 'maintenance' | 'critical'; export class FleetDetailComponent { status = signal<VehicleStatus 'idle' ; private assertNever value: never : never { throw new Error Unhandled status: ${value} ; } } php < -- Template with exhaustive check -- <div class="status-card" @switch status { @case 'idle' { <span class="badge badge-green" Available</span } @case 'transit' { <span class="badge badge-blue" In transit</span } @case 'maintenance' { <span class="badge badge-yellow" Maintenance</span } @case 'critical' { <span class="badge badge-red" Critical</span } @default { < -- If an agent adds a new status to the union without updating the template, this line will fail to compile -- {{ assertNever status as never }} } } </div Why this matters : If a backend team adds 'error' to the union without notifying frontend, the TypeScript build fails—agents can't ship broken code. Signal Forms provide type-safe, signal-driven form handling. Agents are far less likely to introduce validation errors. export class ServiceTicketComponent { // Signal-based form form = new FormGroup { description: new FormControl '', Validators.required , priority: new FormControl<'LOW' | 'MEDIUM' | 'HIGH' | 'CRITICAL' 'MEDIUM' , assignedTo: new FormControl '' , } ; // Signal-based access priority$ = this.form.get 'priority' .valueAsSignal; // Compute UI state based on priority priorityClass = computed = { const level = this.priority$ ; return level === 'CRITICAL' ? 'text-red-600' : level === 'HIGH' ? 'text-orange-600' : 'text-gray-600'; } ; // Agent can safely call this; form validation is enforced submitTicket { if this.form.valid { // Safe to use form.value — it's typed and validated this.fleetService.createTicket this.form.value ; } } } Template: <form formGroup ="form" submit ="submitTicket " <textarea formControlName="description" class ="priorityClass " placeholder="Describe the issue..." </textarea <select formControlName="priority" <option value="LOW" Low</option <option value="MEDIUM" Medium</option <option value="HIGH" High</option <option value="CRITICAL" Critical</option </select <button type="submit" disabled ="form.invalid " Submit</button </form Why this matters : Agents can't generate invalid form values. TypeScript catches it. When integrating third-party code or experimental features, wrap with @boundary . php <div class="dashboard" < -- Core fleet list always renders -- <fleet-list units ="units " / < -- AI diagnostics can fail without crashing the whole page -- @boundary { <ai-predictive-diagnostics selectedUnit ="selectedUnit " / } @catch error { <div class="error-fallback" <h3 Diagnostics unavailable</h3 <p {{ error.message }}</p <button click ="retryDiagnostics " Retry</button </div } </div Why this matters : When an agent writes complex AI integration code, a single bug won't crash the user's app. Keep component API clean; let agents write inline handlers. php < -- ✓ Inline handler — close to its usage -- <button click ="vehicles.update v = v.filter item = item.id == vehicleId " class="btn-danger" Remove from fleet </button < -- ✗ Avoid exposing every handler as a method -- < -- <button click ="removeVehicle vehicleId " Remove</button -- This keeps the component API surface minimal and lets agents see the full handler intent inline. Tell your agent: "Create a ServiceTicketForm component using Angular skills. Use signal forms, include an @boundary for the AI priority analyzer, and run the build to verify." The agent will: get best practices to fetch Signal Forms patterns. ng generate component . dev server.wait for build to verify compilation.You can monitor this entirely in your agent's chat; no surprise errors. From the logistics-manager-app codelab, tell your agent: "Implement a fleet chat query feature. Use the Gemini API to analyze fleet data and return filtered results. Start the dev server with Chrome DevTools, navigate to the chat component, and take a screenshot to verify the feature works." The agent will: FleetChatService that accepts a natural-language query. units signal state to the Gemini API. dev server.start to spin up the dev server.No hallucinations—the agent has eyes on the running application. From the codelab, tell your agent: "Add a 'Run AI Diagnostic' button to the FleetDetailModal. The button should call a Gemini API with the unit's telemetry speed, battery, status . Wrap the diagnostics component with @boundary so if the AI call fails, it doesn't crash the modal. Test it by triggering a vehicle detail view and clicking the button." The agent will: DiagnosticsComponent that calls the AI service. @boundary in the modal template.This entire workflow is deterministic. The agent can't ship broken code—the build will catch it first, and Chrome DevTools will catch runtime issues. Don't load the Angular MCP server alongside your deployment server and communication server. Create separate IDE configurations: { "profiles": { "angular-dev": { "mcpServers": { "angular-cli": { "command": "npx", "args": "-y", "@angular/cli", "mcp" }, "chrome-devtools": { "command": "npx", "args": "chrome-devtools-mcp@latest" } } }, "deployment": { "mcpServers": { "deploy-cli": { "command": "npx", "args": "my-deploy-cli", "mcp" } } } } } Activate only the profile you need for the task at hand. Put skills in your repo and version them like code: /my-project /skills /angular-v22-dev-guidelines.md /our-design-system.md /api-integration-patterns.md /src angular.json Reference them: npx @anthropic-ai/skills add ./skills/angular-v22-dev-guidelines.md Review and update skills when you update Angular versions. Before running an agent on a real task, ask it to estimate token usage: What's the total token count of all my installed MCP tools and skills? If over 30% of your context window is on tool definitions, simplify. Agents need room to think. Instead of relying on the agent to "be careful," write it into the skill: Angular Update Guardrail Skill Before running ng update , ALWAYS: 1. Create a git branch: git checkout -b ng-update-v22 2. Run tests: npm test 3. Commit current state: git commit -m "checkpoint before ng update" 4. Then and only then run: ng update @angular/core @angular/cli The agent will follow the skill's instructions. "MCP server not found" npx @angular/cli mcp --health-check returns a list of tools ng version "Skills not recognized" npx @anthropic-ai/skills list to confirm they're installed "Chrome DevTools not taking screenshots" npx chrome-devtools-mcp@latest --health-check dev server.start before asking the agent to navigate "Build verification timed out" dev server.wait for build tool has a default timeout usually 30 seconds ng serve With Angular v22's MCP + Skills stack: The hallucination loop is closed. Code generation becomes verifiable. Agentic development shifts from risky to reliable. Next Steps : Resources :