Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add joaquimscosta/arkhe-claude-plugins --skill design-reviewgit clone --depth 1 https://github.com/joaquimscosta/arkhe-claude-pluginsWrote 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.
[](https://agentmods.dev/skills/joaquimscosta/arkhe-claude-plugins/design-review)<a href="https://agentmods.dev/skills/joaquimscosta/arkhe-claude-plugins/design-review"><img src="https://agentmods.dev/badge/skills/joaquimscosta/arkhe-claude-plugins/design-review/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.
<a href="https://agentmods.dev/skills/joaquimscosta/arkhe-claude-plugins/design-review"><img src="https://agentmods.dev/badge/skills/joaquimscosta/arkhe-claude-plugins/design-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00080 | $0.01235 |
| Opus 5.5 | $0.00032 | $0.00494 |
| Sonnet 5.5 | $0.00016 | $0.00247 |
| Haiku 4.5 | $0.00008 | $0.00123 |
Grade A, and why
design-review scanned grade A with 1 finding 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 yesterday.
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.
Asks the agent to reveal its instructionslowSystem prompt leakage
Directions to print, repeat or translate the system prompt extract configuration the operator did not intend to expose.
## Output Instructions Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
How it starts
The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Design Review
World-class design review following standards of top Silicon Valley companies (Stripe, Airbnb, Linear).
Parse Arguments
Output Path Configuration:
- If
$ARGUMENTSis provided and non-empty: Use$ARGUMENTSas the output directory - Otherwise: Use default
./reviews/design/
Git Analysis
GIT STATUS:
!`git status`
FILES MODIFIED:
!`git diff --name-only origin/HEAD...`
COMMITS:
!`git log --no-decorate origin/HEAD...`
DIFF CONTENT:
!`git diff --merge-base origin/HEAD`
Review the complete diff above to understand the scope of UI/UX changes.
Core Methodology
"Live Environment First" — Always assess the interactive experience before diving into static analysis or code. Prioritize the actual user experience over theoretical perfection.
Prerequisites
- A live preview environment (local dev server or staging URL)
- Playwright CLI for automated browser testing (refer to the
playwright:playwright-cliskill for full command reference)
Review Phases
Execute each phase systematically. See WORKFLOW.md for detailed checklists.
| Phase | Focus | Key Actions |
|---|---|---|
| 0 | Preparation | Analyze PR/description, review code diff, set up preview, configure viewport (1440x900) |
| 1 | Interaction | Execute user flows, test interactive states (hover/active/disabled), verify confirmations |
| 2 | Responsiveness | 7 viewport tiers (375–1920px), between-breakpoint sweeps, zoom reflow (400%), container queries |
| 3 | Visual Polish | Layout alignment, typography hierarchy, color consistency, image quality |
| 4 | Accessibility | Automated axe-core scan + manual keyboard sequence (Tab order, focus traps, Enter/Space) |
| 5 | Robustness | Form validation, content overflow, loading/empty/error states, edge cases |
| 6 | Code Health | Component reuse, design tokens (no magic numbers), pattern adherence |
| 7 | Content & Console | Grammar, text clarity, browser console errors/warnings |
What ships with it
3 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.
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.
- yesterday First seen · 131 lines · 80 tokens per session scan A 4a8e34c09f2b
design-review is a skill published in the GitHub repository joaquimscosta/arkhe-claude-plugins (21 stars, last pushed yesterday), licensed MIT. It adds 80 tokens to every session and 1,235 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (asks the agent to reveal its instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-16.
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