yunomi: Instructions file for Claude Code

CLAUDE.md

yunomi CLAUDE.md is an instructions file for Claude Code from kazuph/yunomi. It costs 2,577 tokens per session, scanned A, original, MIT.

Project-specific instructions for developing and testing the yunomi project. They cover how to start its server, avoid syntax errors, update the project, and safely deliver notifications.

In plain words
What is it for?
Use them when working on yunomi, including starting it, running reviews, testing, or updating the project.
Why use it?
They enforce the project's required startup and notification checks, stopping the process when the notification route cannot be verified.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions .claude-plugin; mentions Claude Code; mentions Codex.

This is kazuph/yunomi's own configuration. It tells Claude Code how to work on yunomi itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything yunomi configures →

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /Users/kazuph/.local/share/mise/installs/node/22.22.0/lib/node_modules/yunomi/dist/server/server.js.

Reuse

Borrowing it

Nothing to install: this file belongs to kazuph/yunomi. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/kazuph/yunomi/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/kazuph/yunomi

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.

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README.md
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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.

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Per session 2,577 This file is loaded in full into every session.
When invoked 2,577 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.02577 $0.02577
Opus 5.5 $0.01031 $0.01031
Sonnet 5.5 $0.00515 $0.00515
Haiku 4.5 $0.00258 $0.00258

Measured 2d ago against content hash af4b947061b6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

yunomi 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 2d 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 · 139 lines

How it starts

The opening of the file, as written. The whole thing — 139 lines — stays where its author put it; the contents beside it link to each section on GitHub.

yunomi プロジェクト固有ルール

開発・テスト時のサーバー起動

yunomiを起動する前に通知経路を実行時に取得・検証する。IKESU_PANE_ID または ikesu pane current で ikesu を先に確かめ、次に Herdr、次に検証済みtmux adapterを評価する。

PANE_ID="$(printenv IKESU_PANE_ID || true)"
if [ -z "$PANE_ID" ] && command -v ikesu >/dev/null 2>&1; then
  if PANE_ID="$(ikesu pane current 2>/dev/null | jq -er '.result.pane.pane_id')"; then :; else PANE_ID=""; fi
fi
if [ -n "$PANE_ID" ]; then
  ikesu pane get "$PANE_ID" >/dev/null 2>&1 || exit 1
  YUNOMI_ROUTE=ikesu
else
  PANE_ID="$(printenv HERDR_PANE_ID || true)"
  if [ -z "$PANE_ID" ] && command -v herdr >/dev/null 2>&1; then
    if PANE_ID="$(herdr pane current 2>/dev/null | jq -er '.result.pane.pane_id')"; then :; else PANE_ID=""; fi
  fi
  if [ -n "$PANE_ID" ]; then
    herdr pane get "$PANE_ID" >/dev/null 2>&1 || exit 1
    YUNOMI_ROUTE=herdr
  elif [ -n "$(printenv TMUX || true)" ] && [ -n "$(printenv TMUX_PANE || true)" ] && [ -n "$(printenv YUNOMI_NOTIFY_CMD || true)" ]; then
    TMUX_PANE_ID="$(printenv TMUX_PANE)"
    test "$(tmux display-message -p -t "$TMUX_PANE_ID" '#{pane_id}')" = "$TMUX_PANE_ID" || exit 1
    YUNOMI_ROUTE=tmux
  else
    echo "no proven yunomi notification route" >&2
    exit 1
  fi
fi
  • ikesu経路では --loop --notify-ikesu-pane "$PANE_ID" を必ず指定する。Codexは ikesu run --label yunomi --cwd /absolute/path/to/repo -- npx yunomi REPORT.md --loop --notify-ikesu-pane "$PANE_ID"、Claude Codeは同じyunomi引数で run_in_background: true を使う。Codexはジョブ終了後に ikesu log <job> を読む。Claude Codeは起動したBashバックグラウンドタスクの出力を読む。
  • ikesuは ikesu agent prompt、部屋指定時は ikesu send <pane> <text> --room R。古い版向け代替送信はしない。--notify-room は実際に送るHerdr/ikesu全側の対応を起動前に確認する。
  • 引数なしの IKESU_PANE_ID はikesuのみを選び、漏れたHerdr/tmux環境を無視する。明示引数があればikesu環境を追加せず、従来のHerdr/tmux環境規則を保つ。YUNOMI_NOTIFY_CMD は全経路に優先し1回だけ実行する。
  • Herdr経路の書込み可能レビューは、自分で確認する場合もユーザーにレビューさせる場合も、必ず --loop --notify-pane "$PANE_ID" を付ける。
  • 純tmux経路は、事前検証済みの YUNOMI_NOTIFY_CMD が設定されている場合だけ --loop で起動する。yunomi share はread-only例外。
  • Claude CodeはBashツールの run_in_background: true で起動し、exitを検知する。
  • Herdr経路で--notify-paneが無い起動、通知経路を実行時に証明できない起動、記憶やfocused paneから通知先を推測する起動は禁止。
  • 通知先を証明できない場合は、yunomiを起動せずfail closedで報告する。
  • --notify-pane はHerdr pane専用。tmuxの%paneを渡さず、その場でraw tmux send-keys fallbackを作らない。Herdrが使えない純tmux環境は、安全なキュー配送と到達性を事前検証済みの YUNOMI_NOTIFY_CMD がある場合だけ --loop で起動し、それ以外はfail closedにする。
  • ユーザーが「開いて」と明示した場合は、最終ビルドを使うサーバーの healthz と対象UIを確認してから、macOSの open http://127.0.0.1:<port>/ で操作可能な画面を開き、ユーザーの確認が終わるまでサーバーを維持する。スクリーンショットだけを開いて代用してはいけない。明示依頼がない自動起動では、yunomi自身のブラウザ起動を使ってよい。

Read the full file on GitHub · 139 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.

  1. 2d ago Changed · +16 lines · +521 tokens per session af4b947061b6
  2. 1mo ago Changed · -1 lines · -21 tokens per session f011622110c6
  3. 1mo ago First seen · 124 lines · 2,077 tokens per session scan A aafbbbffc3ee

Subscribe to this mod's changes

yunomi CLAUDE.md is an instructions file published in the GitHub repository kazuph/yunomi (21 stars, last pushed 2d ago), licensed MIT. It adds 2,577 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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