It's easy to forget about the basics when chasing ver. 1.0: -empty states, -onboarding, -error messages, etc. But luckily, @impeccable_ai has me covered! I use /impeccable daily while working on the @nightshift_ide GUI

Running Impeccable in Codex / ChatGPT? Impeccable *won't* find slop reliably without hooks, so check your settings and make sure they're trusted for each project. We just updated our install steps with better info on this: impeccable.style/#downloads

want to learn the dark arts of skill engineering, but missed my session live at @aiDotEngineer? the video is finally up! this was a fun one! piped.video/watch?v=SQMCtZX3…

engineering is moving 10x faster. design review hasn't caught up. introducing Impeccable ..for PRs! a design review agent that simulates your users, uses your app, finds friction & slop. Impeccable’s design judgment in every PR. reply if you want in on the closed beta 👀

Impeccable 4.3 is out. • Rust engine: faster design checks, no Node setup for the skill • GPT Image 2.5: faster comps and transparent assets • Better comp-to-code fidelity and monorepo support Install or update: npx impeccable@latest install

oh hi @NousResearch! if you missed it in the long 4.1 changelog: Impeccable is now officially supported in Hermes Agent (and thx to @Teknium for helping update our docs via a PR!)

A change of where our skill zip bundles are hosted broke the default installation/update via npx impeccable in the last hours. This is now fixed! If you ran into issues, please try again. Our apologies. More context: github.com/pbakaus/impeccabl…

Impeccable 4.1 is here: core: -critique results more reliably prints in chat before asking you questions - the design hook nags less, and ignores can be recorded once - reduced-motion guidance restored greenfield design: - switch between comps of your page/app before any code or skip mockups and go straight to code - steer ideation to be bolder or safer in the interactive question tool - mockups for new pages of an existing site/app stay more consistent - much better fallback for agents without image generation native apps: - ios and android builds get reviewed against native conventions - polish collects native evidence instead of asking for browser screenshots - web-only checks stop firing on native code platforms and setup: - windows: installs, the decision page, and the roll all work now - plugin installs: the four subagents actually load (they silently never did) - support for @NousResearch hermes agent and @antigravity design issue detection: - no false low-contrast on gradient backgrounds, image backgrounds, or covered text - data-impeccable-ignore silences only the element you put it on - broken-image warnings stop firing on commented-out code - blade files show up in directory scans - paths with spaces or quotes stop breaking commands live mode: - works on ddev, valet, and other non-localhost dev hosts - svelte variants render again (broke due to svelte upstream changes) - copy edits survive long pages 43 prs since the last release - great time to upgrade or try out the latest: npx impeccable install impeccable.style

Tip: If you're using Impeccable in Codex, make sure to enable the hooks in the settings, like so (click "Trust" on each). Impeccable's performance is significantly degraded without hooks.

Impeccable tip: you can now set an OPENAI_API_KEY in your env and Impeccable will natively generate images via gpt-image-2. for redesign/greenfield work, v4 will work *much better* with image gen. now, you don't have to miss outif you use Claude Code / Github Copilot / others w/o native image gen. (does not change the fact that GPT 5.6 is the best frontend model in the world right now, though, first pic is the built page, second pic the mock)

Introducing Impeccable 4 *world builder* However many ways you ask, "be creative!!!" does nothing to an LLM. v4 cracks it, and greenfield work is where it shows. • a creative engine for greenfield and redesign: directions seeded and fused from hundreds of human-approved visual worlds • hyper-optimized for frontier models (GPT 5.6, Fable and class), on a core 58% smaller • far simpler to use: no command to learn, it works out the job itself (blank slate, redesign, added section, scoped refinement) • mobile app design, the #1 request, now in alpha: Apple HIG or Material 3 on top, audit and adapt running as VoiceOver and TalkBack passes • Grok Build and Mistral Vibe join the supported harnesses • plenty more impeccable.style

the secret grimoire of how I was built 👇

We greatly value thoughtful community contributions to Impeccable. However, the low quality AI-slop PRs must stop. Effective immediately, we will auto-close any PRs that are contributed without a prior GitHub issue and project maintainer approval in the issue thread. We will also auto-close PRs that are clearly not reviewed by a human before submitting. When in doubt: A great issue is actually often more valuable than a PR! We love great issues. Keep em coming 🙏

Small follow-up for Codex users: If your design hooks aren't firing in Codex, grab v3.9.1 (just published): it fixes the plugin hook manifest Codex's parser was rejecting (the prev fix was only partially complete). Install / update: npx impeccable install github.com/pbakaus/impeccabl…

Impeccable v3.9.0 + CLI v3.2.0 are out. Skill: • Now avoids and corrects GPT-style 'grid/mesh' backgrounds • /impeccable bolder stays inside your design system • /impeccable critique uses sub-agents effectively to debias on more harnesses • Bundled helpers run under strict-permission harnesses • Codex hook manifest fix CLI (--gpt): • New slop detector rule: grid-line backgrounds • First install preserves external skills symlinks install: npx impeccable install update: npx impeccable update

come learn how impeccable was built and how you can power up your own skills at 4:30p today (and a shorter one on wed 1:30), if you're in SF for @aiDotEngineer world's fair!

Using the /impeccable skill built into the GitHub Copilot app, @cassidoo gave her PocketCal app a design refresh! ✨ Enable in Settings > Experimental to try it out. gh.io/app?utm_source=social-…

/impeccable is now available via experimental settings in the GitHub Copilot App! It breathes fresh life into design that would otherwise feel AI generated. Give it a try!

Impeccable is now the first product of a company: Renaissance Geek, backed by @a16z and partnering with @github. It stays open source and keeps working in every agent it already supports (Claude Code, Codex, Cursor, and more). And now it’s coming pre-bundled into the GitHub Copilot app, too.

Impeccable 3.7 brings linting to design. Until now it was a skill you asked for help. Now it's a design-system-aware feedback loop that runs while your agent builds, catching slop and design drift before they land. 🪝 Design hooks for Claude, Codex, and Cursor They run after every UI edit and quietly nudge your agent to fix slop and drift. The output isn't another wall of lint: it separates new findings from already-seen ones, flags clean scans, and asks the agent to use judgment. Fix real issues, leave intentional demos alone, save exceptions to config instead of littering your source. 🎨 Slop detection is now project-aware Reads your actual design system from DESIGN.md, your typography, palette, radius scale, and tokens, and flags drift from your system, not just generic AI slop: • this font isn't in your design system • this color is outside your documented palette • this radius doesn't match your rounded scale The same engine powers both the hooks and the CLI, and it's where we're investing next. 🖥️ Live Mode, ready for real projects Svelte/SvelteKit now preview variants as temporary framework components with live params, then accept cleanly back into your source component. Manual text edits got evidence / apply / discard routes, insertions preserve their anchors, and mapped lists and JSX slots clean up far more reliably. ⚡ Leaner core, sharper detector Rule-level evals across 3 providers and 4 niches cut guidance with no measurable lift and dropped examples that taught models bad patterns. The detector now skips hidden and screen-reader-only elements, understands OKLCH alpha and Sass-like inputs, and tightened checks for repeated kickers, oversized H1s, clipped overflow, and cramped padding. 🛠️ CLI caught up impeccable detect loads DESIGN.md by default, motion findings name the exact token or cubic-bezier instead of just "bounce," and impeccable ignores gives real CRUD for exceptions. Hooks and CLI share the same ignores. No split-brain config. Plus a much-improved interactive installer with hooks setup built in. Upgrade: npx impeccable install npm i -g impeccable