vyline: Instructions file for Codex

AGENTS.md

vyline AGENTS.md is an instructions file for Codex, OpenCode from nezumi0627/vyline. It costs 7,956 tokens per session, scanned A, original, MIT.

A guide for coding agents working on vyline, covering the project overview, recommended reading order, common difficulties for AI, and reference tools. Some of the guide is written in Japanese.

In plain words
What is it for?
Use it to orient an agent and guide investigation or code changes in vyline.
Why use it?
It helps an agent learn the repository’s structure and known areas where automated coding may need extra care.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md; mentions Codex.

This is nezumi0627/vyline's own configuration. It tells Codex and OpenCode how to work on vyline 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 vyline configures →

Reuse

Borrowing it

Nothing to install: this file belongs to nezumi0627/vyline. 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/nezumi0627/vyline/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/nezumi0627/vyline

Made for: Codex, OpenCode.

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.

agentmods badge for vyline AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/nezumi0627/vyline/agents-md/github.svg)](https://agentmods.dev/instructions/nezumi0627/vyline/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/nezumi0627/vyline/agents-md"><img src="https://agentmods.dev/badge/instructions/nezumi0627/vyline/agents-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.

agentmods 80×15 button for vyline AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/nezumi0627/vyline/agents-md"><img src="https://agentmods.dev/badge/instructions/nezumi0627/vyline/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 7,956 This file is loaded in full into every session.
When invoked 7,956 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 $0.07956 $0.07956
Opus 5.5 $0.03182 $0.03182
Sonnet 5.5 $0.01591 $0.01591
Haiku 4.5 $0.00796 $0.00796

Measured 3d ago against content hash 2309feb09bcd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

vyline AGENTS.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 3d 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.

AGENTS.md · 442 lines

How it starts

The opening of the file, as written. The whole thing — 442 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — Vyline エージェント向けガイド

最終更新: 2026-11-03

このファイルは AI エージェントが Vyline プロジェクトを理解しタスクを実行するための包括的なガイドです。


プロジェクト概要

Vyline は LINE のサードパーティクライアントです。Bun + Hono + React で構築され、自前の LINE プロトコルスタック (@vyline/protocol) を持ちます。

  • 目標: LINE にログインし、メッセージの送受信・Flex/Rich 表示・テーマカスタマイズを行う
  • ライセンス: MIT License(logo/ のブランド資産は logo/LICENCE に従う CC BY 4.0)
  • ステータス: Phase 0-3 完了。Beta 向けの UI・品質・配布準備とオープンチャット統合を継続中
  • 外部依存: @evex/linejs なし。Thrift 型は @vyline/line-types(vendored)

最初に読む順番

この repository は README、docs、submodule、workspace が多い。迷った場合は次の順番で読む。

  1. AGENTS.md(このファイル)
  2. docs/README.md
  3. docs/onboarding.md
  4. docs/architecture.md
  5. 対象機能に一番近い docs
  6. 実コード

README はユーザー向け入口。実装判断の正本にしない。

AI が手間取りやすい点

  • Vyline/packages/protocol、Vyline/packages/plugin、Vyline/packages/themes、tools は submodule/workspace の境界が見えにくい。まず bun run vyl:doctor で状態を確認する。
  • docs整理では既存docsをテンプレートへ機械的に当て直さない。新規docsや大改修だけ docs/templates/ を使い、既存docsは必要箇所だけ直す。
  • ドキュメントサイトは docs/ と Vyline/docs/ の Markdown を Vyline/website/site-data.js の documents に登録して生成する。掲載済みページの本文は元の Markdown から毎回生成されるため、サイト用に本文を複製しない。掲載ページを追加・削除・改名したときは documents の登録も同じ変更に含め、タイトル・カテゴリ・概要を更新する。
  • ドキュメントを変更したら bun run docs:site で生成できることを確認する。生成物 dist-landing/ はコミットせず、main への反映後は .github/workflows/pages.yml がサイトを自動ビルド・デプロイする。サイトのビルド・デプロイ設定を変える場合は、同workflowのPRチェックも通す。
  • README の正本は日本語が README.src.md、英語が README.en.src.md。README.md / README.en.md は生成物なので、原則として直接編集しない。README変更は両方の source に同じ内容を反映し、bun run docs:readme で生成して差分を確認する。
  • README は元の構成を守る。新導線を入れる場合も、該当セクションへの追記に留める。
  • 日本語と英語の README は情報量を揃える。機能、注意事項、パートナー、References、導入手順などを片方だけに追加しない。生成後は README.md と README.en.md の見出し・主要項目に欠落がないか確認する。
  • vyl doctor / vyl init は軽い入口にする。npm publish、Docker build、Trivy container scan、full security scan は通常CLIに入れない。
  • 重い処理は GitHub Actions の manual workflow、release workflow、schedule に寄せる。PRでは軽量チェックを優先する。

参照元・検索ツール

検索ツール: RPC_DICTIONARY

Vyline/packages/protocol/src/dictionary/rpcMap.ts — LINE.js 名 → Desktop 証拠 → Vyline 実装の対応表。

Read the full file on GitHub · 442 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. 3d ago Changed · +4 lines · +145 tokens per session 2309feb09bcd
  2. 4d ago Changed · +19 lines · +798 tokens per session c2661c80c90f
  3. 5d ago Changed · +3 lines · +153 tokens per session 178f05f931b9
  4. 1mo ago Changed · +16 lines · +493 tokens per session 6e470e867405
  5. 2mo ago First seen · 400 lines · 6,367 tokens per session scan A 3a0d86388511

Subscribe to this mod's changes

vyline AGENTS.md is an instructions file published in the GitHub repository nezumi0627/vyline (97 stars, last pushed 2d ago), licensed MIT. It adds 7,956 tokens to every session, about $0.0318 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.

Related

vyline AGENTS.md compared with instructions from other repositories

vyline AGENTS.md next to 6 instructions from other repositories
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vscode model-prompts.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA2,022GitHub Copilot