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/wangqiqi/cursor-ai-rules/c-basicsgit clone --depth 1 https://github.com/wangqiqi/cursor-ai-rulesWrote 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.
[](https://agentmods.dev/rules/wangqiqi/cursor-ai-rules/c-basics)<a href="https://agentmods.dev/rules/wangqiqi/cursor-ai-rules/c-basics"><img src="https://agentmods.dev/badge/rules/wangqiqi/cursor-ai-rules/c-basics.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.00309 |
| Opus 5 | $0.00000 | $0.00154 |
| Sonnet 5 | $0.00000 | $0.00062 |
| Haiku 4.5 | $0.00000 | $0.00031 |
Grade A, and why
c-basics 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 3d 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.
What it actually says
🔧 C 语言开发规则
版本: v4.4.0 | 已拆分语法/内存/实践至独立规则
🎯 适用场景
- 操作系统内核、驱动程序
- 嵌入式、物联网
- 系统工具、高性能计算
- 网络协议栈、跨平台底层库
📚 详细规范引用
- 语法规范：见
@c-basics-syntax（C99/C11、命名约定、项目结构） - 内存管理：见
@c-basics-memory（错误处理、RAII、goto 清理、内存池） - 实践：见
@c-basics-practices（Makefile、CMake、测试策略）
核心原则
- MUST 使用 C11 标准
- MUST 检查所有分配返回值
- MUST 配对资源分配与释放
- NEVER 忽略编译器警告
引用: @c-basics-syntax @c-basics-memory @c-basics-practices
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.
- 3d ago First seen · 35 lines · 0 tokens per session scan A 7b4242762cf0
c-basics is a cursor rule published in the GitHub repository wangqiqi/cursor-ai-rules (15 stars, last pushed 3mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 309 tokens. 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.
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