Best fit
- After the agent (or user) generates an artifact (deck / prototype /
- As a self-check loop the agent can run on its own output before
- For comparing two variants of the same design
nexu-io/open-design
Use it for design and research tasks; the detail page covers purpose, installation, and practical steps.
npx skills add https://github.com/nexu-io/open-design --skill "design-templates/critique"Source checked Jul 28, 2026·Refresh due Oct 26, 2026
Reorganized from the pinned upstream SKILL.md
Produce a single-file HTML "design review report" that scores any artifact across 5 dimensions and proposes actionable fixes. Inspired by the huashu-design expert-critique flow.
npx skills add https://github.com/nexu-io/open-design --skill "design-templates/critique"The pinned source contains enough sections and task detail for a source-grounded deep guide; automated content is still not an independent test.
1,266 source words · 17 usable sections
Best fit
Review inputs
Evidence and findings
Review workflow
Sections are extracted automatically from the pinned SKILL.md and link back to the source.
1. Project file — user said "review the index.html I just made": open it from the project folder. 2. Pasted HTML — user pasted code in the chat: read it from the message. 3. Generated by you in this turn — you just emitted an artifact above and want to self-critique: re-read you…
1. Project file — user said "review the index.html I just made": open it from the project folder. 2. Pasted HTML — user pasted code in the chat: read it from the message. 3. Generated by you in this turn — you just emitted an artifact above and want to self-critique: re-read you…
Skim the entire , then read 6–8 representative content blocks. Do not score from frontmatter alone. The score depends on executed design, not declared intent.
For each of the 5 dimensions, write the score and a 30–80 word evidence paragraph that names specific elements. Use line numbers, class names, page numbers.
Aggregate the 5 evidence paragraphs into:
SkillSignal prompt templates
These prompts were written by SkillSignal from the source structure; they are not upstream text.
Source-grounded prompt
Use for a review or audit task while explicitly checking the source sections.
Use critique for this review or audit task: [task]. Inputs and constraints: [details]. Work through these pinned SKILL.md sections: “Workflow”, “Step 1 — Acquire the artifact”, “Step 2 — Read enough to score”, “Step 3 — Score with evidence”, “Step 4 — Build the action lists”. Cite the concrete requirements that shape each step, do not invent capabilities absent from the source, and verify the result against: [acceptance criteria].
Review checklist
The source section “Workflow” has been checked.
The source section “Step 1 — Acquire the artifact” has been checked.
The source section “Step 2 — Read enough to score” has been checked.
The source section “Step 3 — Score with evidence” has been checked.
Source output checked: Header: artifact name + reviewer credit + date
Source output checked: Big radar chart (SVG)
Static permission evidence
These are source excerpts matched by deterministic rules, not findings of malicious behavior, safety, or actual execution.
Choose a different workflow
When the user wants to plan, design, or implement an A/B test or experiment, or build a growth experimentation program. Also use when the user mentions "A/B test," "split test," "experiment," "test this change," "variant copy," "multivariate test," "hypothesis," "should I test this," "which version is better," "test two versions," "statistical significance," "how long should I run this test," "growth experiments," "experiment velocity," "experiment backlog," "ICE score," "experimentation program
A separate implementation from coreyhaines31/marketingskills; compare its source, maintenance signals, and permission requirements.
Open source detailWhen the user wants to reduce churn, build cancellation flows, set up save offers, recover failed payments, or implement retention strategies. Also use when the user mentions 'churn,' 'cancel flow,' 'offboarding,' 'save offer,' 'dunning,' 'failed payment recovery,' 'win-back,' 'retention,' 'exit survey,' 'pause subscription,' 'involuntary churn,' 'people keep canceling,' 'churn rate is too high,' 'how do I keep users,' or 'customers are leaving.' Use this whenever someone is losing subscribers o
A separate implementation from coreyhaines31/marketingskills; compare its source, maintenance signals, and permission requirements.
Open source detailUse when the user says "review the design", "check the UI", or wants a comprehensive UI/UX review. Uses a 7-phase methodology covering interaction, responsiveness, accessibility, and more.
A separate implementation from event4u-app/agent-config; compare its source, maintenance signals, and permission requirements.
Open source detailFAQ
Produce a single-file HTML "design review report" that scores any artifact across 5 dimensions and proposes actionable fixes. Inspired by the huashu-design expert-critique flow.
The source record exposes this install command: npx skills add https://github.com/nexu-io/open-design --skill "design-templates/critique". Inspect the command and pinned source before running it.
Static rules flagged read-files in the source; the page lists the matching lines and excerpts.
Quality breakdown
Based on traceable docs and repository signals; stars are not treated as quality.
Compare before choosing
These links are selected from shared tasks, functions, stacks, platforms, and same-name variants. Compare the source owner, documentation, permissions, and maintenance signals.
When the user wants to plan, design, or implement an A/B test or experiment, or build a growth experimentation program. Also use when the user mentions "A/B test," "split test," "experiment," "test this change," "variant copy," "multivariate test," "hypothesis," "should I test this," "which version is better," "test two versions," "statistical significance," "how long should I run this test," "growth experiments," "experiment velocity," "experiment backlog," "ICE score," "experimentation program
When the user wants to reduce churn, build cancellation flows, set up save offers, recover failed payments, or implement retention strategies. Also use when the user mentions 'churn,' 'cancel flow,' 'offboarding,' 'save offer,' 'dunning,' 'failed payment recovery,' 'win-back,' 'retention,' 'exit survey,' 'pause subscription,' 'involuntary churn,' 'people keep canceling,' 'churn rate is too high,' 'how do I keep users,' or 'customers are leaving.' Use this whenever someone is losing subscribers o
Use when the user says "review the design", "check the UI", or wants a comprehensive UI/UX review. Uses a 7-phase methodology covering interaction, responsiveness, accessibility, and more.
Analyze Neuropixels extracellular recordings end-to-end with SpikeInterface. Covers loading SpikeGLX/Open Ephys/NWB data, preprocessing, drift/motion correction, Kilosort4 (and CPU) spike sorting, quality metrics, and unit curation (threshold-based, model-based UnitRefine, and AI-assisted visual review). Use when working with Neuropixels 1.0/2.0 recordings, spike sorting, or extracellular electrophysiology analysis.
When the user wants to find, qualify, and build a list of prospects to reach out to — across B2B SaaS, general B2B, or local small businesses. Also use when the user mentions "prospecting," "build a prospect list," "find prospects," "find leads," "lead gen list," "find SaaS companies that," "find B2B companies," "find local businesses," "ICP-fit accounts," "who should we go after," "outbound list," "target account list," "find clients near me," "businesses without websites," "prospect research,"
Produce a single-file HTML "design review report" that scores any artifact across 5 dimensions and proposes actionable fixes. Inspired by the huashu-design expert-critique flow.
A single self-contained <artifact type="text/html"> review report
including:
Each dimension is independent — a deck can be 9/10 on Innovation but 4/10 on Hierarchy and the report should say so plainly. Don't average away interesting failures.
Does the artifact pick a clear direction and stick to it through every micro-decision (chrome / kicker / spacing / accent)?
Evidence to look for:
0–4 Three styles fighting each other. 5–6 One direction but half the elements drift. 7–8 Coherent, occasional drift on edge pages. 9–10 Every element argues for the same thesis.
Can a stranger figure out what to read first, second, third — without being told?
Evidence to look for:
0–4 Everything shouts. 5–6 Hierarchy works on hero pages but breaks on body. 7–8 Clear tiers, occasional collision. 9–10 Eye moves with zero friction.
The 90/10 stuff — alignment, leading, kerning at large sizes, image framing, foot/chrome polish, edge-case spacing.
Evidence to look for:
grid-2-7-5?frame-img + caption proportions consistent across pages?<br> causing 1-character lines?0–4 Visible tape and string. 5–6 Most pages clean, 1–2 ragged. 7–8 Polished, expert eye finds 2–3 misses. 9–10 Magazine-grade — the kind of detail that makes printed-by-hand typographers nod.
Does the artifact work for its intended use? Click targets, nav, readability at presentation distance, copy-paste-ability for code blocks, mobile fallback if relevant.
Evidence to look for:
0–4 Visually fine but doesn't accomplish its job. 5–6 Core flow works, edge cases broken. 7–8 Robust through normal use. 9–10 Defensively engineered — handles iframe / fullscreen / paste / print without flinching.
Does this push past the median? Is there one element that makes people lean in?
Evidence to look for:
0–4 Generic AI-slop median. 5–6 Competent and unmemorable. 7–8 One memorable moment, the rest solid. 9–10 Multiple moves you'd steal — but each one obviously serves the thesis.
Three modes:
<artifact>.If multiple HTML files exist, ask which one (don't review all).
Skim the entire <style>, then read 6–8 representative content
blocks. Do not score from frontmatter alone. The score depends on
executed design, not declared intent.
For each of the 5 dimensions, write the score and a 30–80 word evidence paragraph that names specific elements. Use line numbers, class names, page numbers.
Example:
Dimension: Detail execution
Score: 6 / 10
Evidence: Stat-cards on page 3 align cleanly (grid-6, 3×2), but on
page 8 the right column foot sits 2vh higher than the left because
.callout has 3vh top margin while the figure doesn't. Image captions
use mono on page 5 but sans on page 7 — pick one.
Aggregate the 5 evidence paragraphs into:
display:flex for grid on page 4 to
fix the column drift").Build a single file:
Use the active DESIGN.md tokens if one exists; otherwise default to a neutral light theme (off-white background, near-black text, one accent for radar fill).
<artifact identifier="critique-<artifact-slug>" type="text/html" title="Critique · <Artifact Title>">
<!doctype html>
<html>...</html>
</artifact>
One sentence before the artifact ("Reviewed X across 5 dimensions, see
report below.") and stop after </artifact> — do not paraphrase
the report in chat; the user will read the artifact.