Borrowing it
Nothing to install: this file belongs to ergarcade/www-ergarcade. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/ergarcade/www-ergarcade/master/CLAUDE.mdgit clone --depth 1 https://github.com/ergarcade/www-ergarcadeWrote 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/instructions/ergarcade/www-ergarcade/claude-md)<a href="https://agentmods.dev/instructions/ergarcade/www-ergarcade/claude-md"><img src="https://agentmods.dev/badge/instructions/ergarcade/www-ergarcade/claude-md/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/instructions/ergarcade/www-ergarcade/claude-md"><img src="https://agentmods.dev/badge/instructions/ergarcade/www-ergarcade/claude-md.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 | $0.02368 | $0.02368 |
| Opus 5 | $0.01184 | $0.01184 |
| Sonnet 5 | $0.00474 | $0.00474 |
| Haiku 4.5 | $0.00237 | $0.00237 |
Grade A, and why
www-ergarcade CLAUDE.md 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 — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ergarcade (www-ergarcade)
Static site for ergarcade.com, built with Hugo (single Go
binary, no Node/npm/package.json). hugo server -D for local dev,
hugo --minify for a production build into public/ (gitignored). GitHub
Actions (.github/workflows/hugo.yml) builds and deploys to Pages on every
push to master.
Layout
hugo.toml— site config.[params]holds the pinned ECharts CDN version + SRI hashes used by every article page — bump them here, not per-file.content/— one Markdown file per page.content/_index.md— homepage front matter (hero title/description).content/tools/,content/visualisations/— one file per external tool/visualisation card (link,description; optionalthumbnail, see below). Norequiresfield — every tool defaults to its Mock transport, so nothing's actually required to use one. These havebuild: {render: false}in front matter — they're link-out cards, not real pages, so Hugo indexes them for listings but doesn't generate a page for them. See "Adding a new tool card" below for the full mechanical process (also captured as theadd-tool-cardskill).content/articles/— one Markdown file per article, real pages. Front matter:title,description(short blurb, used on listing cards),tagline(longer intro paragraph shown under the<h1>on the article's own page — these two are usually different text, don't collapse them into one field),chartScript(path to the article'sjs/charts/*.jsmodule), optionalthumbnail(path to a card image, e.g./images/articles/slug.png; falls back to the.entry-thumbplaceholder pattern when absent).- All three content types set
date(full timestamp, not just day — needed to order same-day additions correctly) — see "Card ordering, filtering, and sorting" below.weightis no longer read by any template; existing files may still carry a staleweightfield, harmless leftover, don't bother stripping it out on sight. - Standalone top-level pages (e.g.
content/about.md) uselayouts/_default/single.html— a plain hero (title, optionaldescription) +.Content— and need a<a class="navlink">added topartials/header.html's nav manually; nothing auto-discovers them.
layouts/— templates. See.claude/rules/layouts.md.static/— copied verbatim to the site root; nothing in here is Hugo-processed. See.claude/rules/static.md.
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 · 157 lines · 2,368 tokens per session scan A e4294927a5a0
www-ergarcade CLAUDE.md is an instructions file published in the GitHub repository ergarcade/www-ergarcade (2 stars, last pushed 1mo ago), licensed MIT. It adds 2,368 tokens to every session, about $0.0118 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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