What is kusa CLAUDE.md?

Project instructions for kusa, a lightweight Markdown editor and viewer for terminal-based AI developers. Markdown is a plain-text format commonly used for notes, plans, documentation, and project instructions.

Use them when developing or maintaining kusa, including its CLI launch, Markdown preview and editing, split view, Vim controls, and AI instruction-file support.

They describe the editor's intended workflow, supported tools, architecture, and version-one features in one place.

kusa CLAUDE.md — Instructions file for Claude Code by kaze-jp: Project instructions for kusa, a lightweight Markdown editor and…

Install

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.

agentmods

npx agentmods add instructions/kaze-jp/kusa/claude-md

Clone the repo

git clone --depth 1 https://github.com/kaze-jp/kusa

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/kaze-jp/kusa/claude-md.svg)](https://agentmods.dev/instructions/kaze-jp/kusa/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/kaze-jp/kusa/claude-md"><img src="https://agentmods.dev/badge/instructions/kaze-jp/kusa/claude-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 1,991 This file is loaded in full into every session.

When invoked 1,991 The same file — it is already loaded in full.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

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	$0.01991	$0.01991
Opus 5	$0.00996	$0.00996
Sonnet 5	$0.00398	$0.00398
Haiku 4.5	$0.00199	$0.00199

Measured 5d ago against content hash 20965cb273bb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

kusa 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 5d 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.

CLAUDE.md · 160 lines

How it starts

The opening of the file, as written. The whole thing — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.

kusa - AI開発者のためのMarkdownエディター

プロジェクト概要

AI開発時代にMarkdownを読む/書く/レビューする体験を再定義する、軽量・高速なMarkdownエディター&ビューワー。

ビジョン

"Ghosttyがターミナル体験を再定義したように、kusaがMarkdown体験を再定義する"

ターゲットユーザー

ターミナルAI開発者（Claude Code, Cursor CLI, Kiro CLI ユーザー）
VS Codeを開かずに開発する層
Markdown中心の開発ワークフロー（spec, plan, CLAUDE.md, AGENTS.md, PR review）

技術スタック

Frontend: SolidJS + TypeScript
Backend: Rust (Tauri v2)
Markdown: unified/remark ecosystem
Editor: CodeMirror 6 + vim extension
Styling: Tailwind CSS
Build: bun

アーキテクチャ方針

Tauri v2 でネイティブウィンドウ + WebView
CLI起動: kusa ./file.md or kusa . (ディレクトリ)
軽量: Electron不使用、Chromium同梱なし
3つのモード: Preview / Edit / Split (プレビュー+エディタ並列)

コアコンセプト

Instant Open — CLI引数、ファイルドロップ、パイプで即起動
Vim-First — CodeMirror vim mode。jk escape、Space leader
Beautiful Preview — GitHub風レンダリング + シンタックスハイライト
AI Context Aware — CLAUDE.md, AGENTS.md, .cursorrules のシンタックス対応
Terminal Native — Ghostty/Warp/iTerm のファイルリンクから起動

MVP機能 (v0.1)

Markdownファイルのプレビュー表示
CodeMirror vim mode での編集
Split view (エディター左 + プレビュー右)
CLI起動 (kusa file.md)
ファイルのドラッグ&ドロップ
GitHub Flavored Markdown 対応
ダークテーマ
ファイル保存 (auto-save + manual)

v0.2以降

GitHub PR連携 (kusa pr 123)
Diff表示 (2ファイル比較)
AIコンテキストファイルのバリデーション
複数ファイルタブ
ファイルツリー (オプショナル)
カスタムテーマ
mermaid / KaTeX 対応

開発ルール

bun を使用
コミットメッセージは Conventional Commits
Rust側は最小限に保つ（ファイルI/O、CLI、OS連携のみ）
UI/ロジックはなるべくフロントエンドに寄せる
実装は SDD フェーズ (Phase 1-5) に従う
CodeRabbit レビュー必須（Phase 4）
git commit --no-verify 禁止

SDD (Spec-Driven Development) — powered by konbini

本プロジェクトは konbini (SDD + Agent Orchestrator) で開発する。プリセット: solo-full-auto — 上流承認後は完全自律実行。

ワークフロー概要

設計: /kiro:spec-init → /kiro:spec-requirements → /kiro:spec-design → /kiro:spec-tasks
実装: /kiro:ao-run <feature> → 自律実行 (実装→テスト→PR→レビュー→マージ)

kiro コマンド一覧

コマンド	説明
`/kiro:spec-init <desc>`	Spec初期化
`/kiro:spec-requirements <feature>`	要件生成 (EARS形式)
`/kiro:spec-design <feature> [-y]`	技術設計生成
`/kiro:spec-tasks <feature> [-y]`	実装タスク生成
`/kiro:spec-impl <feature> [tasks]`	TDD実装実行
`/kiro:ao-run <feature>`	AO 自律実行 (実装〜マージ)
`/kiro:spec-status [feature]`	進捗確認
`/kiro:validate-design <feature>`	設計レビュー
`/kiro:validate-impl [feature]`	実装バリデーション
`/kiro:validate-gap <feature>`	ギャップ分析
`/kiro:steering`	ステアリング管理
`/kiro:steering-custom`	カスタムステアリング作成

Read the full file on GitHub · 160 lines

Changes

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.

5d ago First seen · 160 lines · 1,991 tokens per session scan A 20965cb273bb

Subscribe to this mod's changes

kusa CLAUDE.md is an instructions file published in the GitHub repository kaze-jp/kusa (2 stars, last pushed 3mo ago), licensed MIT. It adds 1,991 tokens to every session, about $0.0100 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.

Writing and docs

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

kusa CLAUDE.md