Front-End Checklist is a collection of front-end web development rules organized as a practical review and quality workflow for people and AI agents. Developers use it to audit projects and pull requests, check implementation details, and find guidance for remediation and verification. The catalogue entries provide skills, instructions, MCP tools, and a plugin for using the checklist in agent workflows.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add thedaviddias/Front-End-Checklist --skill accessible-authenticationgit clone --depth 1 https://github.com/thedaviddias/Front-End-ChecklistWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/thedaviddias/front-end-checklist/accessible-authentication)<a href="https://agentmods.dev/skills/thedaviddias/front-end-checklist/accessible-authentication"><img src="https://agentmods.dev/badge/skills/thedaviddias/front-end-checklist/accessible-authentication/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/thedaviddias/front-end-checklist/accessible-authentication"><img src="https://agentmods.dev/badge/skills/thedaviddias/front-end-checklist/accessible-authentication.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00044 | $0.00435 |
| Opus 5.5 | $0.00018 | $0.00174 |
| Sonnet 5.5 | $0.00009 | $0.00087 |
| Haiku 4.5 | $0.00004 | $0.00044 |
Grade A, and why
accessible-authentication scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Provide accessible authentication methods
Authentication often becomes the first hard blocker for users with cognitive, motor, low-vision, or speech-input needs. If sign-in, MFA, or recovery relies on memorization or transcription with no assisted path, the user may be locked out before they can access the product at all.
Quick Reference
- Do not block paste or password managers in login and recovery flows
- Prefer passkeys, magic links, device approval, or password-manager-friendly flows
- Support OTP autofill and paste with appropriate semantics such as
autocomplete="one-time-code" - Avoid CAPTCHA or secondary checks that require memorizing or transcribing information without an alternative
Check
Review login, MFA, password reset, and account recovery for accessible authentication problems. Flag blocked paste, password-manager hostility, manual transcription requirements, inaccessible OTP handling, and CAPTCHA or knowledge checks without a compliant alternative.
Fix
Add password-manager-friendly fields, support paste and OTP autofill, and provide at least one authentication path that does not depend on a cognitive function test.
Explain
Explain WCAG Accessible Authentication, why memorization and transcription are barriers, and how passkeys, password managers, OTP autofill, and device approval improve both accessibility and security.
Code Review
Review authentication pages, MFA steps, recovery flows, and security controls related to Provide accessible authentication methods. Flag exact steps that require memorization, transcription, blocked assistive tooling, or inaccessible fallback paths.
For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.
Rule page: https://frontendchecklist.io/rules/accessibility/accessible-authentication
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 11d ago Changed c1383ffd84f3
- 1mo ago First seen · 46 lines · 44 tokens per session scan A 1d46fd0acbfa
accessible-authentication is a skill published in the GitHub repository thedaviddias/Front-End-Checklist (74,476 stars, last pushed 9d ago), licensed MIT. It adds 44 tokens to every session and 435 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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