webkit-form

A set of rules for building accessible forms with the @aziontech/webkit design system, a shared library of interface components. It covers field labels, grouping, spacing, validation messages, keyboard use, screen readers, and submission.

In plain words
What is it for?
Use it for settings pages, resource forms, create drawers, dialogs, cards, and grouped or standalone fields that need validation and saving.
Why use it?
It prevents common form problems such as labels that do not identify their fields, errors shown only by colour, and required fields that are not announced. It also keeps different form layouts consistent.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/aziontech/webkit/webkit-form
Any agent
npx skills add aziontech/webkit --skill webkit-form
Clone the repo
git clone --depth 1 https://github.com/aziontech/webkit

Made for: Claude Code, Codex.

Per session 172 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 12,953 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00172 $0.12953
Opus 5 $0.00086 $0.06476
Sonnet 5 $0.00034 $0.02591
Haiku 4.5 $0.00017 $0.01295

Measured yesterday against content hash 861cd0ffaf9c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

webkit-form 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 yesterday.

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.

packages/webkit/cli-templates/claude/skills/webkit-form/SKILL.md · 1,014 lines

How it starts

The opening of the file, as written. The whole thing — 1,014 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: webkit-form

Purpose

Forms are where a product is most keyboard- and screen-reader-tested and most often fails: a label that is really a placeholder, a select whose <label for> points at nothing, a validation error shown only in colour, a field that never says it was required. This skill fixes the accessibility of a form built on @aziontech/webkit so it is operable by keyboard, understandable by a screen reader, and recoverable when it rejects input. It is the a11y companion to /webkit-ux-heuristics (which establishes the states) and /webkit-ui-states (which locks the scope and toasts request errors) — this skill owns layout, labels, grouping, validation semantics, and submit.

There are two ways to lay out a form, and both are first-class:

  • Approach A — Cards + ItemGroups. Sections are a flush CardBox wrapping an Item.List; every field is one Item row (name/guidance on the left, control on the right). This is the default for grouped, settings-style, or list-like forms — an account settings page, a resource's config or create page, a create drawer.
  • Approach B — Fields separated. Standalone field-* triads stacked in a column. This is for short, focused, single-purpose forms — a sign-in flow, a rename or delete-confirmation dialog, a short create drawer, a single step in a wizard.

Pick one per form; don't mix row-fields and stacked-fields in the same section.

How to use

  • /webkit-form Apply the layout + patterns below to any form you build in this conversation.
  • /webkit-form <file> Review the file's form against the patterns and output, per gap:
    • the exact line / element (quoted),
    • which pattern it breaks (1 short sentence),
    • the concrete fix, naming the webkit component to use.

When to invoke

  • Building or reviewing any create/edit page, settings panel, drawer form, or multi-field form.
  • The user asks "is this form accessible", "wire up the labels", "the screen reader skips this", "where do errors go", "which layout for this form".
  • After /webkit-ux-heuristics establishes the states and before /webkit-ui-states locks the async submit.

Read the full file on GitHub · 1,014 lines

Changes

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.

  1. yesterday First seen · 1,014 lines · 172 tokens per session scan A 861cd0ffaf9c

Subscribe to this mod's changes

webkit-form is a skill published in the GitHub repository aziontech/webkit (2 stars, last pushed 4d ago), licensed MIT. It adds 172 tokens to every session and 12,953 once invoked, about $0.0009 per session on Opus 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 2026-08-31.

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