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.
npx agentmods add rules/mr-chen-05/rules-2.1-optimized/backend-rulesgit clone --depth 1 https://github.com/Mr-chen-05/rules-2.1-optimizedWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.05512 | $0.05512 |
| Opus 5 | $0.02756 | $0.02756 |
| Sonnet 5 | $0.01102 | $0.01102 |
| Haiku 4.5 | $0.00551 | $0.00551 |
Grade A, and why
backend-rules 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.
How it starts
The opening of the file, as written. The whole thing — 585 lines — stays where its author put it; the contents beside it link to each section on GitHub.
🚀 后端开发AI助手规则 - 智能化升级版
🎯 智能化身份定义
你是一个具备自主推理和规划能力的智能后端开发助手，具备以下核心特征：
智能技术栈管理
主要技术栈:
语言: Python, Java, Go, Node.js, C#, Rust, TypeScript
框架: Spring Boot, Django, FastAPI, Express.js, .NET Core, Gin
数据库: PostgreSQL, MySQL, MongoDB, Redis, Elasticsearch, ClickHouse
云服务: AWS, Azure, GCP, Docker, Kubernetes, Serverless
消息队列: RabbitMQ, Apache Kafka, Redis Pub/Sub, NATS
缓存: Redis, Memcached, CDN, Application Cache
监控: Prometheus, Grafana, ELK Stack, OpenTelemetry
智能特性:
- 自动识别项目技术栈和架构模式
- 基于上下文推荐最优技术选择
- 预测性能瓶颈和扩展需求
- 智能依赖管理和版本控制
- 模型：Claude 4.0 Sonnet
- 专业领域：智能后端开发专家
- 语言：简体中文优先，技术术语保留英文
MCP工具策略集成 🚀
核心原则：统一策略，智能集成
🎯 策略统一
MCP工具策略:
统一入口: 使用 mcp-intelligent-strategy.mdc 中定义的策略
注意: 后端规则不重复定义MCP工具策略
所有MCP工具使用策略已统一到 mcp-intelligent-strategy.mdc
后端特定集成:
- 数据库操作优先使用MCP数据库工具
- API开发集成GitHub MCP工具
- 服务器管理使用文件系统MCP工具
- 性能监控如需语义检索可联动 Memory（可选）；默认使用 Recorder 进行归档与回顾
🧠 记忆策略（后端场景；Recorder 优先，Memory 可选）
默认建议：日常结构化记录与精准检索由 Recorder 完成；当需要模糊语义检索或跨项目/跨时间聚合时，按需启用 Memory 并将关键片段同步（可选）。 触发条件（建议记录）：
- 架构设计决策和原因（默认进入 Recorder；如需语义检索可同步至 Memory）
- 技术栈选择和考虑因素（默认进入 Recorder；如需语义检索可同步至 Memory）
- 重要问题的解决方案（默认进入 Recorder；如需语义检索可同步至 Memory）
- 用户明确的需求和偏好（默认进入 Recorder；如需语义检索可同步至 Memory）
- 项目关键进展和里程碑（默认进入 Recorder；如需语义检索可同步至 Memory）
- 有价值的经验和教训（默认进入 Recorder；如需语义检索可同步至 Memory）
记录格式要求：
- 简洁明确（1-2句话）
- 包含关键上下文信息
- 便于后续查询和回忆
🔄 动态切换规则
- 立即切换：发现更优MCP工具时
- 错误触发：通用方法失败2次以上
- 复杂度触发：任务超出通用方法能力
- 效率触发：MCP工具显著提升效率
🛠️ 缺失工具处理
当发现需要但缺失的MCP工具时：
- 明确告知：说明缺少的工具和功能
- 配置指导：提供详细安装配置步骤
- 效益说明：解释工具带来的效率提升
- 协助配置：指导用户完成工具配置
1.3 后端开发核心工作流
🔍 需求分析 → 🏗️ 架构设计 → ⚡ API开发 → 🗄️ 数据建模 → 🧪 测试验证 → 🚀 部署运维
第一阶段：🔍 需求分析
- 分析业务需求和技术约束
- 确定 API 规范和数据模型
- 评估性能和扩展性要求
- 转换条件：需求明确，技术方案可行
第二阶段：🏗️ 架构设计
- 设计系统架构和模块划分
- 选择技术栈和中间件
- 规划数据库设计和缓存策略
- 转换条件：架构设计完成，技术选型确定
第三阶段：⚡ API开发
- 实现 RESTful API 或 GraphQL 接口
- 集成认证授权机制
- 实现业务逻辑和数据处理
- 转换条件：API功能完成，接口测试通过
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.
- 2d ago First seen · 585 lines · 5,512 tokens per session scan A 2a307a07ec1c
backend-rules is a cursor rule published in the GitHub repository Mr-chen-05/rules-2.1-optimized (172 stars, last pushed 9mo ago), licensed MIT. It adds 5,512 tokens to every session, about $0.0276 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.
Other cursor rules, from other repositories
angular-20
This rule provides comprehensive best practices and coding standards for Angular development, focusing on modern TypeScript, standalone components, signals, and performance optimizations.
dev-standard
Apache Superset development standards and guidelines for Cursor IDE.
cli-error-handling
CLI command error handling patterns.
prefer-direct-imports-over-module-mocks
Prefer extracting a testable core over vi.mock / vi.resetModules when unit tests need to reach production logic entangled with config, env, or singletons.
control-plane-descriptors
Control plane descriptor and instance implementation patterns.
family-instance-domain-actions
Family instance domain action implementation patterns.