Impeccable

pbakaus/impeccableReviewed by AI

What it does

Impeccable is a pack of design instructions and 24 commands you install inside AI coding assistants such as Claude Code, Cursor, Codex and Copilot. After installing you type things like /impeccable audit or /impeccable polish and the assistant reviews or improves the look of your web pages. It also ships a command-line checker with 62 fixed rules that scans files or a website address with no AI and no key, and a Chrome extension that shows the same findings on any page. It is for people who already build websites with an AI assistant; you need Node installed to run the installer.

How easy it is to install

C · install 1 or 2 tools · Windows

Windows C
macOS C
Linux C

On every system it is the same work: Node 18+ (package.json "engines": {"node": ">=18.19.0"}), then `npx impeccable install` in a terminal, then `/impeccable init` inside your AI coding tool before anything happens. There is no installer in the releases, only the engine binaries the skill uses internally.

Numbers on GitHub

Stars: 98,291on Oct 31, 2026
Downloads: 3,573,185312,464 this week
Growth: +9,072stars in 5 days

Stars over time

Facts

Runs on: Windows, macOS, Linux
You need to install: Node.js
To build from source: Node.js, Rust
Disk space: 19 MB–58 MB · from the installer
Accounts or keys: None
Cost: Free · Apache-2.0. The README says the detector needs "No LLM, no API key"; the design commands run inside an AI assistant you pay for separately.
License: Apache-2.0 (Permissive)
Last update: Oct 31, 2026

Risk signals (5)

Attentionhooks run outside model approval
README.md "Good to know": "Hooks run outside model approval. In Claude Code, installed command hooks run even when you deny the model's own commands, so the first edit can download the engine. Review installed hooks before unattended runs, or pass `--settings '{"disableAllHooks": true}'` to turn them off for a run."
AI review
Attentiondownloads a program at run time
README.md Installation: "The skill itself runs a self-contained engine binary that ships next to it or downloads once into `~/.impeccable/bin/`." package.json ships `skill/scripts/engine-checksums.txt` for that download.
AI review
Attentioncontacts the vendor even with telemetry off
README.md "Telemetry": "When a new design starts, the skill fetches a set of visual directions from the impeccable.style catalog. Turning telemetry off doesn't stop that request; it stops the anonymous record of which directions were shown and which one you picked." It adds that "Your project name, files, code, and `PRODUCT.md` are never sent" and that you disable the record with `npx impeccable telemetry off`, `DO_NOT_TRACK=1` or `"telemetry": false`.
AI review
Infowrites into your coding tools settings
README.md Installation: "The installer detects your coding tools, asks whether to install for this project or globally, and offers the design hook where your tool supports one." The repository carries a settings folder for each supported tool (.claude/, .cursor/, .codex/, .github/, .gemini/, .grok/, .hermes/ and more).
AI review
Inforuns a project script in your shell
README.md Live mode: "Applying copy edits runs your `package.json`'s optional `impeccable:manual-edit-validate` script with your permissions, so review it before using live mode in an unfamiliar repo."
AI review

Evidence is shown in its original language.

What Radar could not check

Whether the installer and the downloaded engine really work on a normal Windows setup
What the impeccable.style catalog request actually sends and stores, beyond what the README describes
Whether the engine downloaded on first run matches the checksums shipped with the skill
How good the design results are in practice, since the 62 detector rules only check fixed patterns
Whether the hook slows down your coding tool on every file edit