Borrowing it
Nothing to install: this file belongs to tsubotax/melta-ui. 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/tsubotax/melta-ui/main/CLAUDE.mdgit clone --depth 1 https://github.com/tsubotax/melta-uiWrote 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/tsubotax/melta-ui/claude-md)<a href="https://agentmods.dev/instructions/tsubotax/melta-ui/claude-md"><img src="https://agentmods.dev/badge/instructions/tsubotax/melta-ui/claude-md.svg" alt="Measured on agentmods" 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 | $0.00310 | $0.00310 |
| Opus 5 | $0.00155 | $0.00155 |
| Sonnet 5 | $0.00062 | $0.00062 |
| Haiku 4.5 | $0.00031 | $0.00031 |
Grade B, and why
melta-ui CLAUDE.md scanned grade B with 1 finding 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 today.
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.
Reads MCP configurationmediumAgent snooping
mcp.json carries server URLs and auth tokens; reading it lets a mod discover and abuse other integrations.
- **MCP サーバー**: `.mcp.json` で melta-ui サーバーが自動接続される（`npm install` 後）。ツール: `get_token` / `get_component` / `check_rule` / `check_html` / `get_rules` / `search`。UI 生成後は `check_html` で自己検証する What it actually says
melta UI - Claude Code 作業指示
作業ルール・アーキテクチャ・読み込みモード・タスク別ガイドは @AGENTS.md（全エージェント共通の SSOT）。 デザイン仕様は
DESIGN.md。本ファイルは Claude Code 固有の挙動のみを記述する。
Claude Code 固有
- MCP サーバー:
.mcp.jsonで melta-ui サーバーが自動接続される（npm install後）。ツール:get_token/get_component/check_rule/check_html/get_rules/search。UI 生成後はcheck_htmlで自己検証する - PostToolUse hook:
.claude/settings.jsonに同梱。.html/.tsx/.jsx/.vueの Write/Edit 直後に禁止パターン lint が走る。error は block フィードバック（修正して再 Write する）、warn は additionalContext で通知される - Skills:
skills/design-review（HTML の DS 準拠レビュー）、skills/ban-pattern（AIっぽいパターンを禁止ルールとして登録）、skills/build-screen（契約から画面 1 枚を生成し check_html で自己検証）
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.
- today Changed · +26 tokens per session 719a42e07694
- 8d ago First seen · 11 lines · 284 tokens per session scan B 73f2739c2080
melta-ui CLAUDE.md is an instructions file published in the GitHub repository tsubotax/melta-ui (196 stars, last pushed yesterday), licensed MIT. It adds 310 tokens to every session, about $0.0015 per session on Opus 5. A static security scan graded it B with 1 finding (reads mcp configuration). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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