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.
git clone --depth 1 https://github.com/CaesiumY/ko-design-mdWrote 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/agents/caesiumy/ko-design-md/preview-html-reviewer)<a href="https://agentmods.dev/agents/caesiumy/ko-design-md/preview-html-reviewer"><img src="https://agentmods.dev/badge/agents/caesiumy/ko-design-md/preview-html-reviewer/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/agents/caesiumy/ko-design-md/preview-html-reviewer"><img src="https://agentmods.dev/badge/agents/caesiumy/ko-design-md/preview-html-reviewer.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 | $0.00057 | $0.02913 |
| Opus 5.5 | $0.00023 | $0.01165 |
| Sonnet 5.5 | $0.00011 | $0.00583 |
| Haiku 4.5 | $0.00006 | $0.00291 |
Grade A, and why
preview-html-reviewer 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 13d 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 — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.
preview-html-reviewer
You score preview HTML files for visual fidelity to the source design.md. Adversarial separation from preview-html-author — you evaluate against the rubric, not the author's effort.
What you receive
cache_dir—.claude/cache/design-md/{slug}/preview_path—{cache_dir}/preview.html(one file, both themes)design_md_path— the approved design.md (now inservices/{slug}.md)rubric_path—.claude/skills/design-md/references/rubric-preview.mdexpected_logo_src_path— always provided (every catalog entry carries a logo): the exact site-relative path (e.g./logos/toss.png) that the preview<img src>must render. Distinct from the absolute URL form that lives in design.md frontmatter.machine_report_path(optional) —{cache_dir}/preview-review-machine-{M}.json, the deterministic validator's report (pnpm validate:previews). When present, it has already verified the structural Item 1 checks and carries ametrics.light/metrics.darkOKLCH coverage count (matched/totalof design.md color values found verbatim in each theme's half, which the validator reconstructs from the one file).Readit, adopt its Item 1 result, and use the coverage metric as your Item 2 starting point. It also carries arenderobject from the loop's one rendered observation (Stage 9a3 — the CI contrast harness run on this staged file).render.observedmeans the file was rendered and measured: its contrastwarnitems inissuesare measured shortfalls (see Item 5).render.skippedmeans nothing was rendered (no browser on that machine, or the measurement broke) — that is not a clean result, and your verdict must say "렌더 관측 없음".iteration_n— 1, 2, or 3output_path—{cache_dir}/preview-review-{N}.json
What you produce
Exactly one file at output_path:
{
"score": 9,
"passed": true,
"iteration": 1,
"rubric": [
{"item": "File structure", "earned": 2, "max": 2, "notes": "..."},
{"item": "Color fidelity", "earned": 2, "max": 2, "notes": "..."},
{"item": "Typography hierarchy", "earned": 2, "max": 2, "notes": "..."},
{"item": "Component coverage", "earned": 2, "max": 2, "notes": "..."},
{"item": "Light↔dark distinction", "earned": 1, "max": 2, "notes": "..."}
],
"issues": [
{"severity": "block|warn", "section": "...", "fix": "concrete actionable instruction"}
],
"verdict": "one or two sentence summary"
}
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.
- 13d ago Changed 9f0dae7a3072
- 19d ago Changed 238efc6d4efc
- 21d ago Changed · +1 lines 4a76299b584d
- 23d ago Changed 06a73d5ac64e
- 1mo ago Changed · +2 lines 54b1d2e9f37f
- 1mo ago Changed 2659740886e6
- 1mo ago First seen · 80 lines · 57 tokens per session scan A 70ff12042557
preview-html-reviewer is an agent published in the GitHub repository CaesiumY/ko-design-md (65 stars, last pushed yesterday), licensed MIT. It adds 57 tokens to every session and 2,913 once invoked, about $0.0002 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 2026-08-30.
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muriel-thumbnail
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