reviewable-html-workbench AGENTS.md

reviewable-html-workbench AGENTS.md is an instructions file for Codex, OpenCode from u-ichi/reviewable-html-workbench. It costs 1,070 tokens per session, scanned A, original, MIT.

A shared workflow for coding agents that create final HTML documents people can preview and review in a browser. It supports both Claude Code and Codex CLI, with automated checks for the project structure and code.

In plain words
What is it for?
It helps generate illustrated HTML, show previews, collect comments on the document, send those comments back to the agent, and apply design changes.
Why use it?
It separates real workflow testing from basic automated tests, so an HTML tool can be checked both for valid files and for correct use by the agent.

Instructions file for CodexOpenCode

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/u-ichi/reviewable-html-workbench/agents-md
Clone the repo
git clone --depth 1 https://github.com/u-ichi/reviewable-html-workbench

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 reviewable-html-workbench AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/u-ichi/reviewable-html-workbench/agents-md.svg)](https://agentmods.dev/instructions/u-ichi/reviewable-html-workbench/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/u-ichi/reviewable-html-workbench/agents-md"><img src="https://agentmods.dev/badge/instructions/u-ichi/reviewable-html-workbench/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,070 This file is loaded in full into every session.
When invoked 1,070 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.

ModelPer sessionOnce invoked
Fable 5 $0.01070 $0.01070
Opus 5 $0.00535 $0.00535
Sonnet 5 $0.00214 $0.00214
Haiku 4.5 $0.00107 $0.00107

Measured 4d ago against content hash 8fff4f9708cb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

reviewable-html-workbench 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 4d 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 · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

reviewable-html-workbench

概要

HTMLを最終成果物にするagent workflow向けの共通plugin。図示つきHTML生成、Preview Runtime、HTML上のレビューコメント、コメント取り込み、agent返信、設計反映を扱う。

Claude Code / Codex CLI の両方で使えるように、plugin manifest は agent 別に持ち、skill本文とscript実装は共通化する。

技術スタック

  • Python 3.11+
  • 標準ライブラリ優先
  • HTML / CSS / JavaScript
  • Claude Code plugin (.claude-plugin/plugin.json)
  • Codex plugin (.codex-plugin/plugin.json)
  • Agent Skills (skills/*/SKILL.md)

開発コマンド(自動テスト・構造検証)

以下は自動化された構造検証であり、機能の「動作確認」ではない。

# 自動テスト(コード正当性の検証)
python3 -m unittest discover -s tests

# Claude plugin manifest 検証
claude plugins validate .

# JSON syntax 検証
python3 -m json.tool .claude-plugin/plugin.json >/dev/null
python3 -m json.tool .codex-plugin/plugin.json >/dev/null

# CLI skeleton 確認
python3 -m scripts.html_review_workbench.cli --help

動作確認(実シナリオ検証)

このシステムの利用者は agent であり、Python CLI を直接叩く人間はいない。CLI は agent のツールである。「動作確認」とは CLI の入出力が正しい JSON を返すことではなく、agent がユーザーのワークフロー内で機能を正しく使えることを意味する。

自動テスト pass は動作確認の前提条件であり、動作確認そのものではない。

実シナリオ検証の手順は各 skill の SKILL.md「実シナリオ検証」セクションに記載。

ディレクトリ構成

  • .claude-plugin/ Claude Code plugin manifest
  • .codex-plugin/ Codex plugin manifest
  • skills/visual-html-renderer/ HTML生成・図示・Preview Runtime用skill
  • skills/reviewable-design-doc/ レビュー可能な設計資料・コメント取り込み用skill
  • scripts/html_review_workbench/ 両skillから呼ぶ共通実装
  • templates/ HTML/CSS/JSテンプレート
  • tests/ scriptとplugin構成の検証
  • docs/ 設計・開発フロー

プロジェクト固有の規約

  • SKILL.md は薄く保ち、重い処理は scripts/html_review_workbench/ に置く。
  • Claude / Codex 差分は manifest と必要最小限のadapterに閉じ込める。
  • コメントの確認質問はチャットだけで返さず、HTMLのコメントスレッドへ agent reply として書き戻す。
  • Preview Runtime は Tailscale IPv4 を優先し、fallback は 127.0.0.10.0.0.0 bindは禁止。
  • 外部アップロード型の図式レンダラーは承認なしに使わない。
  • git commit 時は必ず以下の 4 ファイル全てversion フィールドを同じ値に揃えて semver に従って更新する。バージョン更新なしの commit は禁止。
    1. .claude-plugin/plugin.json
    2. .codex-plugin/plugin.json
    3. .claude-plugin/marketplace.jsonmetadata.versionplugins[0].version の 2 箇所)
    4. pyproject.toml

Read the full file on GitHub · 79 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. 4d ago First seen · 79 lines · 1,070 tokens per session scan A 8fff4f9708cb

Subscribe to this mod's changes

reviewable-html-workbench AGENTS.md is an instructions file published in the GitHub repository u-ichi/reviewable-html-workbench (295 stars, last pushed 26d ago), licensed MIT. It adds 1,070 tokens to every session, about $0.0053 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 2026-08-30.