diff --git a/web/src/features/skill/skill-card-suite-membership.test.tsx b/web/src/features/skill/skill-card-suite-membership.test.tsx
new file mode 100644
index 000000000..2cfc59f5a
--- /dev/null
+++ b/web/src/features/skill/skill-card-suite-membership.test.tsx
@@ -0,0 +1,76 @@
+// @vitest-environment jsdom
+
+import { cleanup, fireEvent, render, screen } from '@testing-library/react'
+import { afterEach, describe, expect, it, vi } from 'vitest'
+import { SkillCard } from './skill-card'
+
+vi.mock('@/api/client', () => ({ buildApiUrl: (url: string) => url }))
+vi.mock('@/features/auth/use-auth', () => ({ useAuth: () => ({ isAuthenticated: false }) }))
+vi.mock('@/features/social/use-star', () => ({ useStarredIdSet: () => ({ starredIds: new Set<number>() }) }))
+vi.mock('react-i18next', () => ({
+  useTranslation: () => ({ t: (key: string) => key, i18n: { language: 'en' } }),
+}))
+
+const baseSkill = {
+  id: 1,
+  slug: 'workflow-helper',
+  displayName: 'Workflow Helper',
+  summary: 'A skill that can also be used independently.',
+  namespace: 'team-a',
+  downloadCount: 0,
+  starCount: 0,
+  ratingCount: 0,
+  updatedAt: '2026-10-26T00:00:00Z',
+  canSubmitPromotion: false,
+}
+
+afterEach(cleanup)
+
+describe('SkillCard Suite membership hint', () => {
+  it('shows one passive hint when a visible Suite references the skill', () => {
+    const skill = { ...baseSkill, hasVisibleSuites: true }
+    render(<SkillCard skill={skill} />)
+
+    const badge = screen.getByText('skillCard.relatedSuites')
+    expect(badge.getAttribute('title')).toBe('skillCard.relatedSuitesHint')
+    expect(badge.closest('a, button')).toBeNull()
+    expect(badge.hasAttribute('tabindex')).toBe(false)
+    expect(screen.getAllByText('skillCard.relatedSuites')).toHaveLength(1)
+  })
+
+  it.each([false, undefined])('does not infer membership when the response flag is %s', (hasVisibleSuites) => {
+    const skill = { ...baseSkill, hasVisibleSuites }
+    render(<SkillCard skill={skill} />)
+
+    expect(screen.queryByText('skillCard.relatedSuites')).toBeNull()
+  })
+
+  it('keeps the existing card navigation for clicking the hint, Enter and Space', () => {
+    const onClick = vi.fn()
+    const skill = { ...baseSkill, hasVisibleSuites: true }
+    render(<SkillCard skill={skill} onClick={onClick} />)
+
+    fireEvent.click(screen.getByText('skillCard.relatedSuites'))
+    const card = screen.getByRole('link')
+    fireEvent.keyDown(card, { key: 'Enter' })
+    fireEvent.keyDown(card, { key: ' ' })
+    expect(onClick).toHaveBeenCalledTimes(3)
+    fireEvent.keyDown(card, { key: 'ArrowDown' })
+    expect(onClick).toHaveBeenCalledTimes(3)
+    expect(card.querySelectorAll('a, button')).toHaveLength(0)
+  })
+
+  it('retains long names and namespaces with a secondary wrapping hint', () => {
+    const skill = {
+      ...baseSkill,
+      displayName: 'A'.repeat(180),
+      namespace: 'team-'.repeat(25),
+      hasVisibleSuites: true,
+    }
+    render(<SkillCard skill={skill} />)
+
+    expect(screen.getByTitle(skill.displayName).textContent).toBe(skill.displayName)
+    expect(screen.getByTitle(`@${skill.namespace}`).textContent).toBe(`@${skill.namespace}`)
+    expect(screen.getByText('skillCard.relatedSuites').className).toContain('shrink-0')
+  })
+})