git.stella-ops.org/docs/features/unchecked/web/tinyfailureevent-first-signal-event-pattern.md

TinyFailureEvent / First Signal Event Pattern

Module

Web

Status

IMPLEMENTED

Description

First signal events are implemented with a dedicated store, typed models, and UI components for display in run views and console status.

Implementation Details

• Feature directory: src/Web/StellaOps.Web/src/app/features/runs/
• Components:
  • first-signal-card (src/Web/StellaOps.Web/src/app/features/runs/components/first-signal-card/first-signal-card.component.ts)
• Services:
  • first-signal-prefetch (src/Web/StellaOps.Web/src/app/features/runs/services/first-signal-prefetch.service.ts)
• Source: Feature matrix scan

E2E Test Plan

• Setup:
  • Log in with a user that has appropriate permissions
  • Navigate to the relevant page/section where this feature appears
  • Ensure test data exists (scanned artifacts, SBOM data, or seed data as needed)
• Core verification:
  • Verify the component renders correctly with sample data
  • Verify interactive elements respond to user input
  • Verify data is fetched and displayed from the correct API endpoints
• Edge cases:
  • Verify graceful handling when backend API is unavailable (error state)
  • Verify responsive layout at different viewport sizes
  • Verify accessibility (keyboard navigation, screen reader labels, ARIA attributes)