Borrowing it
Nothing to install: this file belongs to zhuyansen/agent-skills-hub. 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/zhuyansen/agent-skills-hub/main/CLAUDE.mdgit clone --depth 1 https://github.com/zhuyansen/agent-skills-hubWrote 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/zhuyansen/agent-skills-hub/claude-md)<a href="https://agentmods.dev/instructions/zhuyansen/agent-skills-hub/claude-md"><img src="https://agentmods.dev/badge/instructions/zhuyansen/agent-skills-hub/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/zhuyansen/agent-skills-hub/claude-md"><img src="https://agentmods.dev/badge/instructions/zhuyansen/agent-skills-hub/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 | $0.02564 | $0.02564 |
| Opus 5.5 | $0.01026 | $0.01026 |
| Sonnet 5.5 | $0.00513 | $0.00513 |
| Haiku 4.5 | $0.00256 | $0.00256 |
Grade A, and why
agent-skills-hub 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 1mo 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 — 182 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Architecture Decisions (Non-negotiable)
These are locked-in decisions from past session postmortems. Do NOT deviate without explicit user approval.
- Data persistence: Always use Supabase (production) or local Postgres (dev) for any multi-user data. NEVER use localStorage as the primary data layer for features that involve more than one user or cross-device sync. localStorage is only acceptable for per-device UI preferences (theme, language, collapsed sidebars).
- Language: TypeScript strict mode. No
anytypes — useunknown+ type guards or proper generics. - Frontend framework: React 19 + React Router 7 + Vite. Do not introduce Next.js or other meta-frameworks here — the Hub is a pure SPA with build-time SEO page generation.
- Styling: Tailwind CSS 4 with
@custom-variant dark (&:where(.dark, .dark *))for dark mode. No CSS-in-JS libraries. - Deployment: GitHub Pages via GitHub Actions (
.github/workflows/deploy.yml). Never introduce a new hosting platform without reviewing the domain + SSL + CDN setup first.
UI & Visual Work
- After every visual change, take a screenshot (via preview_screenshot) and verify against user intent before moving on.
- Do NOT change colors, spacing, typography, or theme values unless the user explicitly asks. "Fix this bug" never means "redesign the palette".
- Use hex codes, not adjectives. If the user says "a bit darker", ask for a specific hex before guessing.
- When in doubt, preview_inspect the element for computed styles rather than eyeballing a screenshot.
Tool Installation & CLI Usage
Before installing or using any CLI tool, first verify in a sub-agent or quick search:
- Does the tool exist on npm/pip/crates.io and is it actively maintained (commit in last 90 days)?
- What exactly can it do — and can it NOT do (e.g., search-only vs. booking; read-only vs. write)?
- What are the authentication requirements (API key, OAuth, cookie, manual QR login)?
- Are there any known platform constraints (macOS SIP, Windows-only, requires sudo)?
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.
- 1mo ago Changed · +54 tokens per session b20f5a2b5079
- 1mo ago Changed · +126 tokens per session 19ec69a99d13
- 1mo ago First seen · 182 lines · 2,384 tokens per session scan A 6d451ea4d6bd
agent-skills-hub CLAUDE.md is an instructions file published in the GitHub repository zhuyansen/agent-skills-hub (474 stars, last pushed yesterday), licensed MIT. It adds 2,564 tokens to every session, about $0.0103 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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