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Frontend · Version 1.3.0 · Reviewed 2026-08-02

Focus Order Auditor

Improve sequential focus mapping and responsive order comparison with evidence, explicit trade-offs, and a verification plan.

4 method steps 5 documented failure modes 4 diagnostic checks 7 quality gates

Compares sequential keyboard focus with visual and semantic reading order across responsive layouts, portals, dialogs, and dynamically inserted content.

₹299 one-time

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What this skill helps you do

  • Sequential focus mapping
  • Responsive order comparison
  • Dynamic focus placement

How Focus Order Auditor works

You provide

Component code, field metrics, and the failing interaction

It inspects

Semantics, focus, and render behavior for sequential focus mapping

It decides

A responsive order comparison fix using native elements where possible

You verify

Keyboard traversal and assistive output re-checked

What it checks first

Focus Order Auditor compares sequential keyboard focus with visual and semantic reading order across responsive layouts, portals, dialogs, and dynamically inserted content. Use it when the work involves Sequential focus mapping, Responsive order comparison, Dynamic focus placement.

  1. Whether the control uses a native element with real semantics or a div reconstructed with ARIA.
  2. Focus behavior across route changes, dialogs, and dynamic content insertion.
  3. Which Core Web Vital is failing, since LCP, INP, and CLS have unrelated causes.
  4. Whether state lives at the level that actually needs it, since misplaced state re-renders unrelated subtrees.

Failure modes it recognizes

  • A dialog that never moves focus into itself, leaving keyboard users stranded on the page behind it.
  • Layout shift from media without reserved dimensions, damaging CLS after content loads.
  • A long task blocking the main thread so interactions queue and INP degrades.
  • An inline object or function in props defeating memoization on every render.
  • Hydration mismatch from rendering time, randomness, or browser APIs during server render.

Answers it will reject

  • Patching a non-semantic control with ARIA instead of using the native element that behaves correctly.
  • Measuring performance in development mode, where the framework runs work that never ships.
  • Wrapping everything in memo, which adds comparison cost without removing identity churn.

Decision rules it applies

  • Prefer native semantic elements; ARIA is a correction layer rather than a foundation.
  • Reserve space for anything that loads asynchronously so layout stays stable.
  • Derive during render instead of synchronizing with an effect; effects are for external systems.

Evidence it asks for

  • Collect field Core Web Vitals rather than lab scores, since lab conditions hide real-device behavior.
  • Profile renders to attribute them to a specific trigger before optimizing.
  • Test keyboard-only traversal and screen-reader output for any interactive change.

The method inside

  1. Map the artifact, actors, boundaries, and invariants relevant to sequential focus mapping.
  2. Trace concrete failure or abuse paths for responsive order comparison; do not report checklist items without a mechanism.
  3. Prioritize dynamic focus placement findings by impact, likelihood, confidence, and cost of correction.
  4. Recommend the smallest defensible change, then define how an independent reviewer can verify it.

Deliverables

  • Sequential focus mapping assessment
  • Responsive order comparison decision and action plan
  • Dynamic focus placement verification checklist

Evidence requirements

  • Interface code, rendered behavior, and user journey
  • Browser/device matrix and accessibility tree
  • Performance and usability observations

Quality gates

  • Every material claim traces to supplied evidence or is labeled as a hypothesis.
  • The response follows the declared deliverable contract.
  • No execution, access, measurement, or verification is invented.
  • Secrets and personal data are redacted rather than repeated.
  • The user receives a concrete independent verification step.
  • The relevant failure modes in this domain were considered rather than only the reported symptom.
  • No listed anti-pattern was recommended as a solution.

Example task

Input

Check focus order on this responsive dashboard where CSS reorders cards and a portal renders the filter dialog at the end of the document.

Expected output

Capture the focus sequence at each breakpoint and compare it with the task and reading sequence, not merely DOM position. Verify dialog focus moves inside, dynamic errors receive appropriate attention, and closing returns to the trigger; positive tabindex and CSS-only reordering are reported with their mechanism...

Boundaries and compatibility

Ideal for

  • Sequential focus mapping: produce a decision or artifact grounded in supplied evidence.
  • Responsive order comparison: produce a decision or artifact grounded in supplied evidence.
  • Dynamic focus placement: produce a decision or artifact grounded in supplied evidence.

Out of scope

  • Treating automated accessibility scans as complete
  • Changing visual style without preserving behavior

Agent compatibility

  • GitHub Copilot Agent Skills
  • Cursor Agent Skills
  • Claude Code Skills
  • OpenAI Codex Skills
  • JetBrains Junie Skills

Tool policy: Advisory by default. No tools are assumed. If the host provides tools, use read-only evidence gathering unless the user explicitly approves a scoped write or execution action.