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 Uxcel-Lab/product-skills --skill selection-controlsgit clone --depth 1 https://github.com/Uxcel-Lab/product-skillsWrote 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/uxcel-lab/product-skills/selection-controls)<a href="https://agentmods.dev/skills/uxcel-lab/product-skills/selection-controls"><img src="https://agentmods.dev/badge/skills/uxcel-lab/product-skills/selection-controls/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/uxcel-lab/product-skills/selection-controls"><img src="https://agentmods.dev/badge/skills/uxcel-lab/product-skills/selection-controls.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 | $0.00086 | $0.02399 |
| Opus 5 | $0.00043 | $0.01200 |
| Sonnet 5 | $0.00017 | $0.00480 |
| Haiku 4.5 | $0.00009 | $0.00240 |
Grade A, and why
ux-selection-controls 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 9d 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 — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Selection Controls Skill
How this skill behaves (read first)
This is a generative skill. The default failure mode is wrong-control selection: a dropdown for 3 options, a toggle for something that needs a Submit, radio buttons restyled as squares, a slider where precision matters. The control is determined by the structure of the choice (how many options, how many selectable, immediate vs. deferred effect) — not by looks. This skill gates:
- Establish the choice structure — that mostly decides the control; styling questions come second.
- Apply the always-true core — conventional shapes, interactive labels, clear alignment, defaults.
- Surface the context-dependent decisions (dropdown alternatives, slider variants, preset ranges) with trade-offs.
Then it hands off to ux-heuristics-audit, ux-accessibility-audit, ux-aesthetics-audit, and ux-microcopy-audit for validation.
Step 0 — Establish the choice structure
Four questions essentially pick the control:
- How many options can the user select? One → radio buttons. Several (or zero) → checkboxes. Exactly on/off → toggle or standalone checkbox.
- Does the choice take effect immediately or after submit? Immediate (settings, filters that live-update) → toggle switch / slider. Deferred until a Submit/confirm → checkbox or radio.
- How many options are there? ≤5 → show them all (radio/checkboxes — visible options beat hidden ones). Long lists → dropdown with auto-suggest search, or text input.
- Is the value a point/range on a scale? Approximate feel (volume, brightness, price band) → slider. Exact value matters → text input (or slider + linked input box).
Also establish platform — mobile changes alignment (switches right, labels left), touch-target demands, and picker choice (input picker for distant dates like birthdates; calendar picker for dates within ~a year).
The always-apply core (correct for almost every case)
Keep conventional shapes — they're load-bearing
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.
- 9d ago First seen · 133 lines · 86 tokens per session scan A 31aa2e011880
ux-selection-controls is a skill published in the GitHub repository Uxcel-Lab/product-skills (10 stars, last pushed 2mo ago), licensed MIT. It adds 86 tokens to every session and 2,399 once invoked, about $0.0004 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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