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.
git clone --depth 1 https://github.com/TashanGKD/tashan-cursor-skillsWrote 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/tashangkd/tashan-cursor-skills/reuse-not-rewrite-guard)<a href="https://agentmods.dev/rules/tashangkd/tashan-cursor-skills/reuse-not-rewrite-guard"><img src="https://agentmods.dev/badge/rules/tashangkd/tashan-cursor-skills/reuse-not-rewrite-guard/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.
<a href="https://agentmods.dev/rules/tashangkd/tashan-cursor-skills/reuse-not-rewrite-guard"><img src="https://agentmods.dev/badge/rules/tashangkd/tashan-cursor-skills/reuse-not-rewrite-guard.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00787 | $0.00787 |
| Opus 5 | $0.00394 | $0.00394 |
| Sonnet 5 | $0.00157 | $0.00157 |
| Haiku 4.5 | $0.00079 | $0.00079 |
Grade A, and why
reuse-not-rewrite-guard 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 11d 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
「复用」≠「重写」强制约束（reuse-not-rewrite-guard）
根因（2026-03-22 跨3个对话发现的系统性语义错位）： 用户说「复用X」，AI 理解为「理解X原理后重实现」； 用户的真实意图是「找到X代码直接调用/复制」。
核心规则（最高优先级，任何任务中生效）
当用户消息含以下词汇时，强制触发本规则：
- 「复用」「完全复用」「全量复用」「直接用」「用xxx的方式」
- 「参考xxx实现」「照着xxx做」「和xxx一样」
必须执行（顺序不可跳过）：
Step 1 先 grep / Read 确认原始实现存在
grep -rn "functionName\|ClassName" 相关目录
→ 找到 → 记录文件路径和函数名
→ 找不到 → 停止，告知用户「未找到原始实现，请确认路径」
Step 2 直接复制/调用原始实现
→ 不重写逻辑，不「优化」，不「精简」
→ 保留原始函数签名、参数名、注释
→ 调整的仅是：路径引用、模块导入、不兼容的接口适配
Step 3 遇到障碍时立即汇报，不自行重设计
→ 「发现原始实现有X不兼容，需要你决策」
→ 绝不自行替换方案后告知
禁止行为（违反即违规）
❌ 理解原理后自行重实现（即使结果功能相同）
❌ 说「我参考了X的设计，重新写了一个」
❌ 因为「部分不兼容」就「全盘否定，从头写」
❌ 自主换方案后才告知用户
❌ 调用不存在的函数（必须先验证存在性）
特别加强：「完全/全量」是硬性信号
用户说「完全复用」「全量复用」「注意是完全，全量」时：
- 不允许任何精简、重构、优化
- 即使 AI 认为原始实现「不够好」，也必须直接使用
- 差异只能在「用户看不到的适配层」（路径、导入等）
变更记录
2026-03-23 — 初始创建
根因：project-retrospective-20260323 E1 类架构级发现。 跨3个对话（1dc992d0/9d4ef11b/a4a4b82a）出现同一错误模式： 用户说「复用X」→ AI 理解原理后重实现 → 用户发现后纠正。 5个根因：①架构理解劫持字面执行 ②精巧重写本能 ③不验证函数存在性 ④部分不兼容→全盘否定 ⑤自主换方案而非汇报。 本 Rule 作为 alwaysApply 约束，在所有对话中强制生效。
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.
- 11d ago First seen · 71 lines · 787 tokens per session scan A 5f1ff7ac70bf
reuse-not-rewrite-guard is a cursor rule published in the GitHub repository TashanGKD/tashan-cursor-skills (20 stars, last pushed 5mo ago), licensed MIT. It adds 787 tokens to every session, about $0.0039 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
10-feature-development
Feature implementation workflow and engineering mindset.
11-template-conventions
Reusable building blocks shipped with this template - use them instead of writing new ones.
12-new-project
Workflow for starting a new app from this template - rebranding, identity, cleanup and first feature.
13-updating-project
Workflow for updating an existing project - dependency and SDK upgrades, migrations, refactors, bug fixes.
01-tech-stack
Android tech stack and project standards.
03-ui
UI, layout, theming and localization standards.