second-brain-os: Skill for Claude Code

.claude/skills/design-critique/SKILL.md

design-critique is a skill for Claude Code from the-sid-dani/second-brain-os. It costs 105 tokens per session (2,325 once invoked), scanned A, a copy of critique, MIT.

A design review that scores an HTML artifact from 0 to 10 across five areas: design approach, visual hierarchy, detail, functionality, and originality.

In plain words
What is it for?
Use it to review an artifact, compare design versions, or produce Keep, Fix, and Quick-win recommendations with a radar chart.
Why use it?
It gives specific evidence and priorities for improving a prototype, landing page, deck, or other HTML-based work.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is the-sid-dani/second-brain-os's own configuration. It tells Claude Code how to work on second-brain-os 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 second-brain-os configures →

Reuse

Borrowing it

Nothing to install: this file belongs to the-sid-dani/second-brain-os. 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/the-sid-dani/second-brain-os/main/.claude/skills/design-critique/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/the-sid-dani/second-brain-os

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 design-critique

README.md
[![agentmods](https://agentmods.dev/badge/skills/the-sid-dani/second-brain-os/design-critique.svg)](https://agentmods.dev/skills/the-sid-dani/second-brain-os/design-critique)
Your own site
<a href="https://agentmods.dev/skills/the-sid-dani/second-brain-os/design-critique"><img src="https://agentmods.dev/badge/skills/the-sid-dani/second-brain-os/design-critique.svg" alt="Measured on agentmods" height="20"></a>
Per session 105 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,325 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 91% 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 $0.00105 $0.02325
Opus 5 $0.00053 $0.01162
Sonnet 5 $0.00021 $0.00465
Haiku 4.5 $0.00011 $0.00232

Measured 8d ago against content hash 136d461ad2a6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

design-critique 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 8d 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.

Origin

This is a copy

91% identical to critique — 33 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/design-critique/SKILL.md · 230 lines

How it starts

The opening of the file, as written. The whole thing — 230 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Critique Skill · 5 维度专家评审

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.

When to use

  • After the agent (or user) generates an artifact (deck / prototype / landing page) and the user asks "what's wrong with this?" or "review this"
  • As a self-check loop the agent can run on its own output before emitting it
  • For comparing two variants of the same design

What you produce

A single self-contained <artifact type="text/html"> review report including:

  1. Header — what artifact was reviewed, date, reviewer ("OD · Critique skill"), 1-line verdict
  2. Radar chart (inline SVG, no library) showing the 5 scores
  3. Five dimension cards, each with:
    • Score 0–10 (with band: 0–4 Broken · 5–6 Functional · 7–8 Strong · 9–10 Exceptional)
    • 1-paragraph evidence (cite specific elements / files / lines)
    • One Keep / Fix / Quick-win bullet
  4. Combined action lists at the bottom:
    • Keep — what's working, don't touch
    • Fix — P0 / P1 issues that are visually expensive
    • Quick wins — 5–15 minute tweaks with disproportionate impact

The 5 dimensions

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.

1. Philosophy consistency · 哲学一致性

Does the artifact pick a clear direction and stick to it through every micro-decision (chrome / kicker / spacing / accent)?

Evidence to look for:

  • Is there one declared design direction (e.g. Monocle / WIRED / Kinfolk) or is it three styles in a trench coat?
  • Does the chrome / kicker vocabulary stay in one register, or does page 3 say "Vol.04 · Spring" and page 7 say "BUT WAIT 🔥"?
  • Are accent / serif / mono used by the same rule throughout?

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.

Read the full file on GitHub · 230 lines

Files

What ships with it

1 file 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. 8d ago First seen · 230 lines · 105 tokens per session scan A 136d461ad2a6

Subscribe to this mod's changes

design-critique is a skill published in the GitHub repository the-sid-dani/second-brain-os (3 stars, last pushed 1mo ago), licensed MIT. It adds 105 tokens to every session and 2,325 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to critique, differing in 33 lines, and is treated as a copy.

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