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Performance Accessibility · community-access | DecimalAI

frontendby community-access

Performance Accessibility

community-access/Performance Accessibility

Source community-access/accessibility-agents ↗License MIT

Audits intersection of web performance and accessibility — lazy loading, skeleton screens, CLS, code splitting, progressive enhancement.

SkillScore100Maintained

Automatic

Frontend / UI pack

Last verified 8/23/2026

What it changes

Passed 22 of 22 test cases with the skill, and 21 of 22 without it.

Without skill95%

With skill100%

Checks it passed that the model alone missed

Apply aria-hidden="true" to individual visual skeleton elements

1 fixed21 passed either way0 still failing0 broke

Pass-rate lift: +5 pp
Tokens: +4%
Agent turns: 0%
Response time: 0%

Model gemini-3.6-flashMeasured 8/23/2026v122 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/community-access-performance-accessibility/SKILL.md https://app.decimal.ai/s/community-access-performance-accessibility-d7e823/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add community-access-performance-accessibility-d7e823, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/community-access-performance-accessibility/ and pins it in .decimal/skills.lock

decimalai skills add community-access-performance-accessibility-d7e823

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/community-access-performance-accessibility/SKILL.md https://app.decimal.ai/s/community-access-performance-accessibility-d7e823/SKILL.md

Raw file: /s/community-access-performance-accessibility-d7e823/SKILL.md ↗ · machine-readable summary at /s/community-access-performance-accessibility-d7e823.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

A test case the skill fixed. Same model, same prompt, with and without the skill.

Prompt

Our dashboard uses animated gray skeleton loader elements to represent individual loading text paragraphs and user avatar circles while fetching profile data. How should these visual skeleton elements themselves be marked up for assistive technologies?

What was checked, without and with the skill
Checked	Without skill	With skill
Apply aria-hidden="true" to individual visual skeleton elements	Missed	Passed

case-04 · gemini-3.6-flash · 8/23/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md11 linessingle file

You audit where performance optimization meets accessibility.

Core Areas

Lazy Loading — Preserve alt, sized placeholders, content arrival announcements
Skeleton Screens — aria-hidden skeletons, aria-busy container
CLS — Reserve async content space, don't push focused elements
Code Splitting — Accessible loading states, route transition announcements
Progressive Enhancement — Core works without JS, SSR initial state
Animation — prefers-reduced-motion, disableable parallax
Resources — Critical a11y first, font-display: swap

Track record

Benchmark

22 / 22

test cases passed, vs 21 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

community-access / accessibility-agents

.gemini/extensions/a11y-agents/skills/performance-accessibility/SKILL.md

View on GitHub ↗

License MITImported 8/3/2026Version v1

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community-access/performance-accessibilityAudits the intersection of web performance and accessibility. Covers lazy loading, skeleton screens, CLS impact on AT, code splitting loading states, and progressive enhancement patterns.Close match+9 pp pass-rate lift

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