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 VKirill/claude-lane-stack --skill impeccable-uigit clone --depth 1 https://github.com/VKirill/claude-lane-stackWrote 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/vkirill/claude-lane-stack/impeccable-ui)<a href="https://agentmods.dev/skills/vkirill/claude-lane-stack/impeccable-ui"><img src="https://agentmods.dev/badge/skills/vkirill/claude-lane-stack/impeccable-ui/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/vkirill/claude-lane-stack/impeccable-ui"><img src="https://agentmods.dev/badge/skills/vkirill/claude-lane-stack/impeccable-ui.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 | $0.01014 |
| Opus 5.5 | $0.00034 | $0.00406 |
| Sonnet 5.5 | $0.00017 | $0.00203 |
| Haiku 4.5 | $0.00009 | $0.00101 |
Grade A, and why
impeccable-ui 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 — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Impeccable UI
Lane adapter of impeccable. Upstream is 23 slash commands + a binary + edit-hooks. We do not install that.
Visitor mode (pick from the surface, not the company):
| Mode | Surfaces |
|---|---|
| Persuade | marketing, landing, pricing |
| Operate | cabinet, admin, settings, tools |
| Read | docs, help |
| Experience | portfolio, gallery |
Info (print and stop)
If $ARGUMENTS is info / справка: print the block below verbatim, then stop.
impeccable-ui — структура и техника UI. Не хуки и не PRODUCT.md.
Оценка (design-lead, без кода)
- critique / typeset / layout / bolder / quieter / distill
- отчёт + Don'ts в DESIGN.md
Чинить (writer в ране)
- audit / harden / adapt / polish / animate / onboard
- craft-floor: references/craft-floor.md
Чужое
- clarify → copy-lead
- document / extract → project-design
- init / PRODUCT.md / hooks / live → нельзя
Роутер: /lane-stack:web-design info
Command map
| Upstream | Lane |
|---|---|
critique typeset layout bolder quieter distill |
design-lead MODE=audit |
audit harden adapt polish animate onboard colorize optimize |
writer run, after «делай» |
clarify |
copy-lead |
document extract shape |
project-design / page-prototype |
init live hooks doctor craft |
refuse |
Optional CLI: if impeccable is already on PATH, impeccable detect <path> is allowed as evidence. Do not download the binary, do not enable hooks.
Audit dimensions (evidence for observed; N/A for unverified)
- Accessibility — contrast, labels, keyboard, headings,
prefers-reduced-motion. - Performance — layout-property animation, lazy images, unused motion.
- Theming — hardcoded hex vs
DESIGN.mdtokens. - Responsive — fixed widths, 44px targets, no horizontal dump on 375px.
- States — hover/disabled/loading/empty/error actually exist.
Critique (design-lead) is one pass. Do not spawn dual sub-agents. If no screenshot: write DEGRADED: no screenshot and continue on source.
What ships with it
3 files 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.
- 1mo ago Changed · +19 lines ace91036cbca
- 1mo ago First seen · 73 lines · 86 tokens per session scan A c335c0421e1c
impeccable-ui is a skill published in the GitHub repository VKirill/claude-lane-stack (125 stars, last pushed 5d ago), licensed MIT. It adds 86 tokens to every session and 1,014 once invoked, about $0.0003 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 2026-09-11.
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