10-architecture-boundaries

10-architecture-boundaries is a cursor rule for Cursor from cembasaranoglu/crafting-system-claude. It costs 5 tokens per session (126 once invoked), scanned A, original, MIT.

A set of rules for keeping software architecture boundaries and dependency direction clear.

In plain words
What is it for?
Use it when designing packages, defining runtime boundaries, reviewing dependencies, or deciding where framework and infrastructure code belongs.
Why use it?
It helps prevent tangled dependencies, accidental cycles, and business logic that depends directly on networks, databases, cloud services, or local machines.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit Use it when designing packages, defining runtime boundaries, reviewing dependencies, or deciding where framework and infrastructure code belongs.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/cembasaranoglu/crafting-system-claude/10-architecture-boundaries
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.

Clone the repo
git clone --depth 1 https://github.com/cembasaranoglu/crafting-system-claude

Made for: Cursor.

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 10-architecture-boundaries

README.md
[![agentmods](https://agentmods.dev/badge/rules/cembasaranoglu/crafting-system-claude/10-architecture-boundaries/github.svg)](https://agentmods.dev/rules/cembasaranoglu/crafting-system-claude/10-architecture-boundaries)
Your own site
<a href="https://agentmods.dev/rules/cembasaranoglu/crafting-system-claude/10-architecture-boundaries"><img src="https://agentmods.dev/badge/rules/cembasaranoglu/crafting-system-claude/10-architecture-boundaries/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 10-architecture-boundaries

Your own site · 80×15
<a href="https://agentmods.dev/rules/cembasaranoglu/crafting-system-claude/10-architecture-boundaries"><img src="https://agentmods.dev/badge/rules/cembasaranoglu/crafting-system-claude/10-architecture-boundaries.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 5 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 126 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00005 $0.00126
Opus 5 $0.00003 $0.00063
Sonnet 5 $0.00001 $0.00025
Haiku 4.5 $0.00001 $0.00013

Measured 5d ago against content hash 45aa69e3548c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

10-architecture-boundaries 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.

cowork/skills/templates-library/references/.cursor/rules/10-architecture-boundaries.mdc · 16 lines

What it actually says

Architecture Boundaries

  • Establish current state before target state.
  • Define runtime surfaces explicitly.
  • Keep transport/framework/database concerns at the edges.
  • Keep domain logic testable without real network, cloud, credentials, or local machine assumptions.
  • Do not invent integrations, queues, databases, APIs, or deployment targets.
  • Do not broaden public API surface without explicit requirement.
  • Avoid vague packages/directories such as utils, common, misc, or shared unless ownership is explicit.
  • Preserve dependency direction and avoid cycles by design.
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. 5d ago First seen · 16 lines · 5 tokens per session scan A 45aa69e3548c

Subscribe to this mod's changes

10-architecture-boundaries is a cursor rule published in the GitHub repository cembasaranoglu/crafting-system-claude (5 stars, last pushed 4mo ago), licensed MIT. It adds 5 tokens to every session and 126 once invoked, about $0.0000 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 2026-09-03.