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 Jamie-BitFlight/claude_skills --skill design-anti-patternsgit clone --depth 1 https://github.com/Jamie-BitFlight/claude_skillsWrote 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/jamie-bitflight/claude_skills/design-anti-patterns)<a href="https://agentmods.dev/skills/jamie-bitflight/claude_skills/design-anti-patterns"><img src="https://agentmods.dev/badge/skills/jamie-bitflight/claude_skills/design-anti-patterns/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/jamie-bitflight/claude_skills/design-anti-patterns"><img src="https://agentmods.dev/badge/skills/jamie-bitflight/claude_skills/design-anti-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00118 | $0.00950 |
| Opus 5 | $0.00059 | $0.00475 |
| Sonnet 5 | $0.00024 | $0.00190 |
| Haiku 4.5 | $0.00012 | $0.00095 |
Grade A, and why
design-anti-patterns 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 12d 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.
How it starts
The opening of the file, as written. The whole thing — 76 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Design Anti-Patterns (Uncodixfy)
SOURCE: Uncodixfy (accessed 2026-03-17)
Before writing any UI code, apply the Uncodixfy metacognitive check: list the UI decisions you would make by default, then do NOT make them if they match any banned pattern below. Build interfaces that feel like Linear, Raycast, Stripe, or GitHub — functional, honest, no visual theatrics.
Pre-Flight Check
Before generating any UI component, run this internal check:
- List all styling decisions you would make by default for this component
- Cross-reference each against the banned patterns in this skill and the full rules reference
- Replace every match with the "normal" standard from the reference
- Verify the result contains zero banned patterns
Absolute Prohibitions
These patterns are never acceptable unless the user explicitly overrides:
- Border radius > 12px on any element
- Pill-shaped buttons or badges
- Glassmorphism, frosted panels, blur haze
- Soft corporate gradients (backgrounds, buttons, text)
- Hero sections inside dashboards or internal tools
- Decorative copy ("Operational clarity without the clutter")
- Eyebrow labels (uppercase
<small>with letter-spacing) - KPI card grids as default dashboard layouts
- Fake charts that exist only to fill space
- Transform animations on hover (translateX, scale, bounce)
- Dramatic box shadows (> 8px blur, colored shadows)
- Floating detached sidebars with rounded outer shells
<small>subheaders above<h2>headline blocks- Decorative note cards with
<small>+<strong>pattern - Generic startup copy in any UI element
- Donut charts with hand-wavy percentages
- Multiple nested panel types (panel, panel-2, rail-panel)
- Status indicators using
::beforepseudo-element colored dots - Nav badges showing "Live" or count indicators without functional purpose
- Footer meta lines ("Dashboard v2.1 - dark mode - single-file HTML")
What ships with it
2 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.
- 12d ago First seen · 76 lines · 118 tokens per session scan A d1667f8caf3e
design-anti-patterns is a skill published in the GitHub repository Jamie-BitFlight/claude_skills (66 stars, last pushed today), licensed MIT. It adds 118 tokens to every session and 950 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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