arch

A repository rule for creating or updating architecture diagrams in a specific project layout. It defines where the diagram sources, SVG files, catalog entries, and temporary drafts belong.

In plain words
What is it for?
Use it when adding or changing architecture diagrams, maintaining the diagram catalog, choosing output folders, or running the project's diagram renderer checks.
Why use it?
It prevents architecture work from being scattered or inconsistent and provides checks for rendering the result correctly.

Cursor rule

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 rules/zhagqn/agentwork/arch
Clone the repo
git clone --depth 1 https://github.com/zhagqn/agentwork
Per session 194 This file is loaded in full into every session.
When invoked 194 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 $0.00194 $0.00194
Opus 5 $0.00097 $0.00097
Sonnet 5 $0.00039 $0.00039
Haiku 4.5 $0.00019 $0.00019

Measured 2d ago against content hash b79887c26dc7, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

arch 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.

.agentwork/tools/arch/cursor/rules/arch.mdc · 17 lines

What it actually says


description: arch tool rule for Cursor globs: [] alwaysApply: false

arch-tool

当任务需要生成或调整架构图时:

  • 先读取 .shared/commands/arch.md
  • 默认维护 catalog.jsoncontent/<version>/<item>/ 下的 Markdown、文本图源与 SVG
  • 页面路径由 version + id 推导,不在 catalog 里重复维护 href
  • 调整后优先运行 renderer --check,必要时读取 .shared/templates/arch/references/layout-best-practices.mdportal-workflow.md
  • 正式产物默认放 docs/architecture/,临时草稿默认放 .tmp/architecture/
  • 只生成静态页面和共享 CSS,不引入 server、live reload、搜索、权限或托管预览
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 First seen · 17 lines · 194 tokens per session scan A b79887c26dc7

Subscribe to this mod's changes

arch is a cursor rule published in the GitHub repository zhagqn/agentwork (57 stars, last pushed 11d ago), licensed MIT. It adds 194 tokens to every session, about $0.0010 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.