[cernus76]

Quick Start document rows used clickable div elements, and the homepage tab set did not implement the keyboard behavior required for ARIA tabs. Document navigation and sub-page creation are now separate named buttons with visible focus, active-state semantics, and decorative icons hidden from assistive technology.

Architecture tabs now support Arrow Left/Right with wrapping plus Home and End, move focus with selection, expose horizontal orientation, and connect each tab to its panel with unique IDs. The touched component type errors and timer cleanup are also corrected.

Validation:

• Focused interaction tests for document buttons and tab-key behavior
• Full Jest suite: 46 passed
• Focused ESLint
• TypeScript: zero diagnostics in changed files
• npm run build
• git diff --check

[hyperspace-pr-bot]

Summary

The following content is AI-generated and provides a summary of the pull request:

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You are about to make a PR to the EXTERNAL Architecture Center.
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Which content does this PR apply to? (Enter a short description)

Title: Improve keyboard accessibility for tabs and document navigation
Category: Bug Fix

Improves accessibility across Architecture Tabs and Quick Start document navigation:

• Adds ARIA-compliant keyboard navigation to Architecture Tabs using Arrow Left/Right, Home, and End, with wrapping and automatic activation.
• Connects tabs and panels through unique IDs, exposes horizontal orientation, and adds visible focus indicators.
• Converts document rows into named buttons with active-page semantics.
• Separates document selection from sub-page creation and hides decorative icons from assistive technology.
• Cleans up transition timers and resolves touched component typing issues.
• Adds focused tests for tab keyboard behavior and accessible document actions.

Validation: 46 Jest tests passed, focused ESLint passed, TypeScript reported no diagnostics in changed files, and the production build and diff checks completed successfully.

Who should review your contribution? (Use @mention to be more specific)

Architecture Center UI and accessibility maintainers.

Checklist before submitting

• My commits are only for the content mentioned above.
• I have followed the folder structure described in the Community Guidelines

Note

Feel free to contact the administrators if you have any questions.

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PR Bot Information

Version: 1.33.12

• Event Trigger: pull_request.opened
• File Content Strategy: Full file content
• Output Template: Repository PR Template
• Correlation ID: 0f4d7490-ce3c-11f1-832a-e1ab5ecfbd49
• LLM: gpt-5.6-sol
• Summary Prompt: Default Prompt

[hyperspace-pr-bot]

The accessibility improvements are generally well structured and covered by focused tests. One responsive orientation mismatch should be addressed before merging.

PR Bot Information

Version: 1.33.12

• Event Trigger: pull_request.opened
• Agent Instructions:
  • AGENTS.md
  • CLAUDE.md
• File Content Strategy: Full file content
• Correlation ID: 0f4d7490-ce3c-11f1-832a-e1ab5ecfbd49
• LLM: gpt-5.6-sol