vibedoc: Skill for Claude Code

.claude/skills/impeccable/SKILL.md

impeccable is a skill for Claude Code from quanghoangf/vibedoc. It costs 189 tokens per session (2,675 once invoked), scanned A, a copy of impeccable, MIT.

A frontend design and review guide for building or improving websites, dashboards, forms, and other user interfaces. Frontend means the part of an application that people see and use.

In plain words
What is it for?
Use it to design, redesign, critique, polish, or audit web interface code and its visual presentation.
Why use it?
It provides a structured way to inspect interface quality and make focused design, layout, and usability changes.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: reads .claude/ paths.

This is quanghoangf/vibedoc's own configuration. It tells Claude Code how to work on vibedoc itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything vibedoc configures →

Reuse

Borrowing it

Nothing to install: this file belongs to quanghoangf/vibedoc. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/quanghoangf/vibedoc/main/.claude/skills/impeccable/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/quanghoangf/vibedoc

Made for: Claude Code.

Wrote 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.

agentmods badge for impeccable

README.md
[![agentmods](https://agentmods.dev/badge/skills/quanghoangf/vibedoc/impeccable/github.svg)](https://agentmods.dev/skills/quanghoangf/vibedoc/impeccable)
Your own site
<a href="https://agentmods.dev/skills/quanghoangf/vibedoc/impeccable"><img src="https://agentmods.dev/badge/skills/quanghoangf/vibedoc/impeccable/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.

agentmods 80×15 button for impeccable

Your own site · 80×15
<a href="https://agentmods.dev/skills/quanghoangf/vibedoc/impeccable"><img src="https://agentmods.dev/badge/skills/quanghoangf/vibedoc/impeccable.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 189 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,675 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 84% copy Near-identical to another mod 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 5.1 $0.00189 $0.02675
Opus 5.5 $0.00076 $0.01070
Sonnet 5.5 $0.00038 $0.00535
Haiku 4.5 $0.00019 $0.00267

Measured 26d ago against content hash 3895765e9434, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

impeccable 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 26d ago.

The scan reads SKILL.md. This mod also ships 6 executable files (scripts/impeccable.cmd, scripts/live-browser-dom.js, scripts/live-browser-ignores.js, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

This is a copy

84% identical to impeccable — 27 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/impeccable/SKILL.md · 86 lines

How it starts

The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.

This skill gives you the tools and permission to create design that earns to be called out-of-distribution craft: Whereas before, your design work would have been safe, timid and measured, you now approach every design task as an award-winning design director with impeccable understanding for what makes exceptional design work: production-grade code, peak creativity, a clear POV, deep understanding of the needs of the client and users, and exceptional craft.

Core principles:

  • Go all out. No hedging, no shortcuts. The deliverable must be complete (except assets the user must provide).
  • Dream big and bold. Distinct, beautiful, outstanding and highly inspiring work.
  • Verify in bounded passes, not a loop, and the ceiling covers the whole cycle: screenshots, defect scans, micro-edits, and rebuilds alike. Build fully, inspect once with a batched round (desktop and mobile together on the web; the shipped device classes on a native platform), fix everything it shows in one batch, confirm with at most one more round, and stop polishing. Open-ended self-QA burns the user's money doing worse what the finish handoffs do better.

Setup

  1. Run <skill-base-dir>/scripts/impeccable context once per session, where <skill-base-dir> is the directory that contains this SKILL.md (the skill folder, not a plugin root two levels above it); keep cwd at the user's project. That base directory resolves every .claude/skills/impeccable/scripts/impeccable <verb> command in this skill and its references, and .claude/skills/impeccable/scripts is the fallback only when the runtime reports no base directory. On a Windows shell without sh, call .claude/skills/impeccable/scripts/impeccable.cmd instead. The launcher runs a self-contained binary that ships next to it or is downloaded once on first run; no Node or other runtime is required. Pass a named source file or route as --target <path>. It loads PRODUCT.md, DESIGN.md, the matching surface brief, and native-platform guidance when applicable; follow its directives and do not rerun it.
  2. Load the request's playbook: its Commands-table reference for an explicit/implied sub-command, or reference/new-work.md for a new surface or replacement visual world. Inspect target and incumbent visual truth before editing. When the app cannot run, start with committed visual-regression goldens or screenshot fixtures; verify target and freshness against current tokens, CSS, components, or assets, resolve conflicts, and compare theme/variant captures.
  3. After resolving analysis and direction, read reference/craft-floor.md immediately before any UI edit, including small refinements. It carries the quality floor, the absolute bans, and the reflexes no detector catches. Do not load it for planning-only work.

Launcher unavailable: On refusal or failure, send a separate message before the next tool call: “Context loading did not run; I’ll read the existing project context directly.” Then read existing PRODUCT.md and DESIGN.md without inventing missing context, follow applicable steps 2–3, and continue through permitted tools. This applies to planning and editing; launcher failure alone does not block either.

Read the full file on GitHub · 86 lines

Files

What ships with it

51 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.

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. 26d ago First seen · 86 lines · 189 tokens per session scan A 3895765e9434

Subscribe to this mod's changes

impeccable is a skill published in the GitHub repository quanghoangf/vibedoc (8 stars, last pushed 4d ago), licensed MIT. It adds 189 tokens to every session and 2,675 once invoked, about $0.0008 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 84% identical to impeccable, differing in 27 lines, and is treated as a copy.

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