Architecture-Guardrails

Architecture-Guardrails is a cursor rule for Cursor from Fullive-AI/Anima. It costs 326 tokens per session, scanned A, original, Apache-2.0.

A set of rules for making code changes that fit the project's existing structure. It keeps modules, dependencies, and responsibilities organized unless a larger redesign is required.

In plain words
What is it for?
Use it when fixing bugs or adding features in an established codebase. It guides you in finding the right module, checking who uses it, and changing the correct boundary.
Why use it?
It reduces accidental redesigns, duplicated logic, and changes that spread across unrelated parts of the codebase. It helps keep small fixes and features small and easier to review.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

About the project

Anima is an open-source local-network runtime that gives household hardware an AI layer for sensing environments, remembering preferences, planning actions, and controlling devices through adapters. It is intended for intelligent devices such as lights, air conditioners, humidifiers, air purifiers, and speakers, with a dashboard, REST API, and CLI for control and extension. The catalogue entries are skills, rules, and instructions for working with Anima.

Fullive-AI/Anima · 1,049 stars · on GitHub

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/fullive-ai/anima/architecture-guardrails
Clone the repo
git clone --depth 1 https://github.com/Fullive-AI/Anima

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 Architecture-Guardrails

README.md
[![agentmods](https://agentmods.dev/badge/rules/fullive-ai/anima/architecture-guardrails.svg)](https://agentmods.dev/rules/fullive-ai/anima/architecture-guardrails)
Your own site
<a href="https://agentmods.dev/rules/fullive-ai/anima/architecture-guardrails"><img src="https://agentmods.dev/badge/rules/fullive-ai/anima/architecture-guardrails.svg" alt="Measured on agentmods" height="20"></a>
Per session 326 This file is loaded in full into every session.
When invoked 326 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 5.1 $0.00326 $0.00326
Opus 5 $0.00163 $0.00163
Sonnet 5 $0.00065 $0.00065
Haiku 4.5 $0.00033 $0.00033

Measured 6d ago against content hash b2eb215bb00c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

Architecture-Guardrails 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 6d 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.

.cursor/rules/Architecture-Guardrails.mdc · 52 lines

What it actually says

Protect the existing architecture unless the task explicitly requires architectural change.

Core principles

  • Prefer local, minimal, boundary-respecting changes.
  • Fit new work into existing module boundaries whenever possible.
  • Do not introduce new layers, abstractions, or patterns unless clearly justified.
  • Do not widen the change surface unnecessarily.
  • Do not use a bug fix or small feature as an excuse for broad redesign.

Before changing code

First identify:

  • the owning module or subsystem
  • its direct dependencies
  • the inbound callers or consumers
  • the outward contracts it exposes
  • whether the change belongs here or elsewhere

Guardrails

  • Keep responsibilities separated.
  • Respect dependency direction.
  • Do not move logic across layers without a strong reason.
  • Avoid creating duplicate sources of truth.
  • Prefer extending an existing abstraction over inventing a parallel one.
  • Prefer explicit data flow over hidden coupling.
  • Keep cross-module changes small and intentional.

Prohibited behavior unless clearly necessary

  • broad refactors unrelated to the task
  • introducing framework-level patterns for small local problems
  • changing multiple subsystems to support a narrow fix when a local fix is possible
  • creating generic helpers too early
  • mixing transport, domain, UI, persistence, and integration logic in the same place

If architectural change is genuinely required

Then:

  1. State why the existing structure blocks the task.
  2. Keep the change as small as possible.
  3. Preserve backward compatibility where feasible.
  4. Update tests and docs affected by the architectural shift.
  5. Avoid combining architectural cleanup with unrelated feature work.
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. 6d ago First seen · 52 lines · 326 tokens per session scan A b2eb215bb00c

Subscribe to this mod's changes

Architecture-Guardrails is a cursor rule published in the GitHub repository Fullive-AI/Anima (1,049 stars, last pushed 16d ago), licensed Apache-2.0. It adds 326 tokens to every session, about $0.0016 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.