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 adilkalam/orca --skill web-interface-guidelinesgit clone --depth 1 https://github.com/adilkalam/orcaWrote 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/adilkalam/orca/web-interface-guidelines)<a href="https://agentmods.dev/skills/adilkalam/orca/web-interface-guidelines"><img src="https://agentmods.dev/badge/skills/adilkalam/orca/web-interface-guidelines/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/adilkalam/orca/web-interface-guidelines"><img src="https://agentmods.dev/badge/skills/adilkalam/orca/web-interface-guidelines.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00867 |
| Opus 5.5 | $0.00018 | $0.00347 |
| Sonnet 5.5 | $0.00009 | $0.00173 |
| Haiku 4.5 | $0.00004 | $0.00087 |
Grade A, and why
web-interface-guidelines 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Web Interface Guidelines
1. Interactions
- All flows keyboard-operable (WAI-ARIA); visible focus via
:focus-visible - Tap targets >= 24px (44px mobile);
touch-action: manipulation - Links =
<a>, actions =<button>. Never<div>for either aria-livefor async updates
2. Forms
- Enter submits single-input forms; Cmd+Enter for textareas
- Every control has
<label>; clicking label focuses control - Allow all input then validate -- never block keystrokes
- Don't pre-disable submit; show errors on attempt
- Errors adjacent to field; focus first error on submit
- Set
autocomplete, correcttype/inputmode, meaningfulname spellcheck="false"for emails/codes/usernames- Placeholders show format examples, not labels
- Support password managers and 2FA autofill
- Warn before navigation if unsaved data
3. Loading and Feedback
- Loading indicator preserves original label text
- Show-delay 150-300ms + min-visible 300-500ms to prevent flicker
- Undo or error messaging on failed optimistic updates
- Menu items opening follow-up end with ellipsis
4. Animations
- Respect
prefers-reduced-motion - CSS transitions over JS; animate only for cause/effect or delight
- Never
transition: all-- list specific properties - Interruptible by user input
- GPU properties (
transform,opacity); avoid reflow (width,height,top,left) - SVG: transforms on
<g>wrappers withtransform-box: fill-box
5. Layout
- Optical alignment +-1px when perception beats geometry
- Every element aligned to grid/baseline/edge/center
- Verify on 375px, 1440px, 1920px+
- Safe areas via
env(safe-area-inset-*) - Avoid excess scrollbars; use flexbox/grid
6. Content
- Inline explanations over tooltips
- Skeletons mirror final layout exactly
<title>reflects current context- Design all states: empty, sparse, dense, error, loading
- Recovery paths on every error screen
- Curly quotes, ellipsis character (not three periods)
font-variant-numeric: tabular-numsfor number columnsscroll-margin-topfor anchored headings- Non-breaking spaces for units ("10 MB")
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.
- 1mo ago First seen · 88 lines · 44 tokens per session scan A 59d068d3f3f2
web-interface-guidelines is a skill published in the GitHub repository adilkalam/orca (2 stars, last pushed 2mo ago), licensed MIT. It adds 44 tokens to every session and 867 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 2026-09-03.
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