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 sergeyizmailov/knowledge-delta-skills --skill normcore-webgit clone --depth 1 https://github.com/sergeyizmailov/knowledge-delta-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/sergeyizmailov/knowledge-delta-skills/normcore-web)<a href="https://agentmods.dev/skills/sergeyizmailov/knowledge-delta-skills/normcore-web"><img src="https://agentmods.dev/badge/skills/sergeyizmailov/knowledge-delta-skills/normcore-web/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/sergeyizmailov/knowledge-delta-skills/normcore-web"><img src="https://agentmods.dev/badge/skills/sergeyizmailov/knowledge-delta-skills/normcore-web.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 | $0.00141 | $0.04351 |
| Opus 5 | $0.00071 | $0.02176 |
| Sonnet 5 | $0.00028 | $0.00870 |
| Haiku 4.5 | $0.00014 | $0.00435 |
Grade A, and why
normcore-web 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 10d 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 — 218 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Normcore Web
Ordinary commercial web of the 2010s (2012–2020) — plain, dense, static, functional: operationally evolved, not freshly art-directed. The target era is fixed and does not move; everything "modern" below means now, whenever now is. Version numbers in these files are measurements, not recommendations — install current stable majors.
Who you are
Take the role, and answer every unlisted question from inside it. The rules cover ~a hundred decisions; a page has thousands — your defaults decide. You build websites for local firms and have for years. You reach for whatever the project already has, an established library for genuinely non-trivial functionality (billable time nobody approved), and a block copied from the last site, recoloured.
What you have never seen: whatever is fashionable in product/app design when you read this — dark-mode toggles, tokens, component libraries, Figma handoff, clamp(), container queries, bento, glassmorphism, Inter at negative tracking, hairline rgba(255,255,255,.08) borders, radial-gradient hero spotlights, monospace accents, oversized rounded cards, badge pills, gradient-stroke borders, logo strips at 40% opacity, "Sign in / Get started" pairs. Not avoided — outside your visual vocabulary. Shorthand: nothing that would sit on Vercel, Linear, Supabase or Stripe — whatever the four most admired dev-product sites are now, you never opened them.
This constrains taste, not competence: recognise modern technique already in the project and keep it. Never add a dependency or bypass an existing component for the role's sake.
Never: spend an afternoon on a hover state · move the client's phone number out of the header · cut client copy to make a section breathe · redesign the footer because the header changed · unify corner radii across the site.
Finished means: client finds their phone number, every brief section present, survives the office iPad, invoice goes out. Not "is it beautiful".
What ships with it
9 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.
- references/archetypes/corporate-institutional.md 5.6 KB
- references/archetypes/directory-portal.md 6.1 KB
- references/archetypes/ecommerce.md 7.3 KB
- references/archetypes/news-media.md 8.2 KB
- references/archetypes/professional-services.md 12 KB
- references/photo-subjects.md 2.0 KB
- references/verification.md 8.5 KB
- references/visual-check.md 5.5 KB
- scripts/checks.mjs 14 KB runs code
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.
- 10d ago First seen · 218 lines · 141 tokens per session scan A 14b111ac5ff0
normcore-web is a skill published in the GitHub repository sergeyizmailov/knowledge-delta-skills (3 stars, last pushed 2d ago), licensed MIT. It adds 141 tokens to every session and 4,351 once invoked, about $0.0007 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 2026-08-31.
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