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 Eid0lon/zero-slop --skill perfect-designgit clone --depth 1 https://github.com/Eid0lon/zero-slopWrote 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/eid0lon/zero-slop/perfect-design)<a href="https://agentmods.dev/skills/eid0lon/zero-slop/perfect-design"><img src="https://agentmods.dev/badge/skills/eid0lon/zero-slop/perfect-design/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/eid0lon/zero-slop/perfect-design"><img src="https://agentmods.dev/badge/skills/eid0lon/zero-slop/perfect-design.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 | $0.00099 | $0.01218 |
| Opus 5.5 | $0.00040 | $0.00487 |
| Sonnet 5.5 | $0.00020 | $0.00244 |
| Haiku 4.5 | $0.00010 | $0.00122 |
Grade A, and why
perfect-design 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 2mo 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 — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Perfect Design
Perfect Design is the premium design layer. no-slop removes generic AI residue; Perfect Design creates a coherent, product-specific interface that feels designed by a senior design engineer.
Command Interface
Use references/command-interface.md.
Primary commands:
perfect-design --contract [brief-or-target]
perfect-design --create [brief-or-target]
perfect-design --redesign [target]
perfect-design --polish [target]
perfect-design --judge [target]
perfect-design --verify [target]
perfect-design -e --polish [target]
Short flags:
-c,--contract: write the design contract before code.--create: build a new UI surface from a brief.-r,--redesign: rebuild direction, layout, tokens, copy, and interaction.-p,--polish: refine an existing surface without changing the product model.-j,--judge: run the brutal premium judge panel.--verify: prove the result in code and browser when possible.-e,--economy: disable live subagent judges only when the user explicitly accepts a lower-cost review.
Default mode:
- Existing UI target:
--polish. - Brief without target:
--contract.
First Action
Load steps/step-00-command-router.md.
Step 00 parses command flags, discovers project shape, loads the right references, and routes to contract, create, redesign, polish, judge, or verify.
Core References
Load only what the task needs:
references/command-interface.md: grammar, precedence, output contracts.references/dials-and-presets.md: premium craft dials and archetype presets.references/research-synthesis.md: distilled research from Vercel, Linear, Raycast, Awwwards, WCAG, Baymard, Polaris, Radix, web.dev, Resend, Supabase, and related sources.references/design-contract.md: pre-code contract structure and rejection rules.references/product-archetypes.md: domain-specific design expectations.references/composition-playbook.md: layout, hierarchy, typography, color, tokens, imagery, and visual rhythm.references/interaction-accessibility.md: keyboard, focus, states, motion, performance, and responsive stability.references/no-slop-integration.md: how to combine Perfect Design withno-slop.references/legacy-boundary.md: proof thatold-perfect-designis intentionally outside the editable scope.references/judge-system.md: mandatory brutal judge protocol and gate formula.references/premium-quality-rubric.md: scoring rubric and ship gates.references/self-coaching.md: the internal checklist to use when stuck.references/verification-playbook.md: build/browser/accessibility/visual proof.
What ships with it
21 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.
- agents/openai.yaml 265 B
- references/command-interface.md 2.0 KB
- references/composition-playbook.md 2.9 KB
- references/design-contract.md 2.1 KB
- references/dials-and-presets.md 3.2 KB
- references/interaction-accessibility.md 2.3 KB
- references/judge-system.md 2.4 KB
- references/legacy-boundary.md 2.5 KB
- references/no-slop-integration.md 1.3 KB
- references/premium-quality-rubric.md 2.0 KB
- references/product-archetypes.md 2.4 KB
- references/research-synthesis.md 3.7 KB
- references/self-coaching.md 1.7 KB
- references/verification-playbook.md 2.1 KB
- scripts/perfect_design_cli.py 28 KB runs code
- steps/step-00-command-router.md 1.9 KB
- steps/step-01-contract.md 1.3 KB
- steps/step-02-design.md 1.6 KB
- steps/step-03-no-slop.md 820 B
- steps/step-04-judge.md 1.3 KB
- steps/step-05-verify.md 1.3 KB
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.
- 2mo ago First seen · 120 lines · 99 tokens per session scan A 6d5bae347e79
perfect-design is a skill published in the GitHub repository Eid0lon/zero-slop (12 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 99 tokens to every session and 1,218 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-08-31.
perfect-design compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| perfect-designEid0lon/zero-slop | Skill | 12 | 4mo ago | Apache-2.0 | A | 99 | Codex |
| web-design-engineerConardLi/garden-skills | Skill | 14k | 12d ago | MIT | A | 96 | Codex |
| web-designPrism-Shadow/penguin-harness | Skill | 3.2k | yesterday | Apache-2.0 | A | 51 | Claude Code, Codex |
| proto-bot-getting-startedmakecindy/cindy | Skill | 9.3k | yesterday | Apache-2.0 | A | 43 | Claude Code, Codex |
| proto-bot-opsmakecindy/cindy | Skill | 9.3k | yesterday | Apache-2.0 | A | 38 | Claude Code, Codex |
| omh-frontendrlaope/oh-my-hermes | Skill | 5.2k | yesterday | MIT | A | 76 | Claude Code, Codex |
| omh-visual-qarlaope/oh-my-hermes | Skill | 5.2k | yesterday | MIT | A | 70 | Claude Code, Codex |