🦞OpenClaw 极简安全实践指南 (Security Practice Guide) 是面向 OpenClaw 的黑手册。 我尝试了其他一些方式来试图加固 OpenClaw，包括 Skill 方式，但是发现还不如给 OpenClaw 植入一个安全“思想钢印”来的有意思，这个“思想钢印”形成一个 md 文档，包含安全事前、事中、事后需要做的策略，但这里有个前提： 尽量不影响 OpenClaw 的日常使用，安全不要干扰用户体验，需要给这只🦞足够的自由。但是吧，江湖险恶，一只有 Root 权限且诞生才一个多月的🦞，安全不让人放心… 于是，这份面向 OpenClaw 的极简安全实践指南诞生了，目前是 v2.7 版本，此前我们内测了许多版本，也踩了不少坑。现在公布出来，大家玩之前务必仔细看这份指南的 README⚠️： 注意里面的说法。我相信你会很有收获。里面还推荐了我们实测在 OpenClaw 场景下聪明的模型，如果你有自己的感受，一定要和我们反馈。 一切都很新，一定有不完善的地方，请大家多指正！ ⚠️最后，务必认真阅读 README，也务必肉眼扫描下你将喂给你🦞的“OpenClaw极简安全实践指南.md”，相信我，会非常有意思。

吴恩达老师的讲 Claude Code，DeepLearning 的科普课程Claude Code: A Highly Agentic Coding Assistant 虽然定位偏入门，但这个课程仔细听下来，发现还是有一些 "Best Practices" 是我之前忽略的细节，因此对每个章节做了精读笔记，方便更好的记忆和回溯， 一共 8 节，推荐。

现在openclaw真的太火了，为了避免自己安装到一些恶意的skill，我已经让我的openclaw安装了 @evilcos 家的openclaw-security-practice-guide，每次安装skill都会审计，还有每天都有安全日报。非常赞

陈sir弹古筝来啦！好久没练习了没能给大家谈个千本樱啥的，先找了个沧海一声笑给大家听听~ I have not practiced for a long time , so I selected a simple melody to play. #陈sir# #明日方舟# #アークナイツ# #cosplay#

最近， 中国很多中学校长和政府官员勾结， 很多中学女生被官员强奸。 传言有利于官员升迁！ 导致很多女生跳河、跳楼自杀 Recently, numerous middle school principals in China have colluded with government officials; consequently, many female students have been raped by these officials—a practice rumored to facilitate the officials' career advancement. This situation has led to a wave of suicides among the female students.

📷七月作品（14日發售） 『绮愿良宵-大凤』77P+1Video “指揮官大人怎麼了？ 不是說好要和大風一起練習桌球的嗎？ ♡” "What's wrong with Commander? Didn't you agree to practice billiards with me? ♡" 📸phx：@jimengciyuan 盒岛： Subscription： Fantia購入：

我的好伙伴只有高中学历，他解决了我们在币安当一名很烂的做市商都无法盈利的问题，他居然解决了，他简直是我人生中见过的大天才之一！ 这是我们第一次在币安高频做市交易盈利，而我们只是一群不知名的小人物，而我们在币安高频做市商领域绞肉机可以活下来了。 下一站hyperliquid 与lighter，我们来了！ My good friend, who only has a high school diploma, solved the problem that even we, as terrible market makers on Binance, couldn't make a profit. He actually solved it! He's practically one of the greatest geniuses I've ever met! This is the first time we've profited from high-frequency market making on Binance, and we're just a bunch of nobodys. Yet, we've survived the meat grinder of Binance's high-frequency market maker arena! Next stop: HyperLiquid and Lightner, here we come!

市面上 U 卡三种玩家： 1️⃣ 割韭菜型：开卡费贵、月费贵、充值还贵，贵得没道理 2️⃣ 玩资管型：让你投这个投那个，支付工具搞成理财平台 3️⃣ 踏实做支付型：明码标价、功能简单、到账稳定 MiPay 是第 3 种。 不是最好的，但肯定不是最坑的。 There are three types of U card players on the market: 1️⃣ Cutting leek type: The card opening fee is expensive, the monthly fee is expensive, and the recharge is also expensive. It is unreasonably expensive. 2️⃣ Asset management type: Let you invest in this and that, and the payment tool becomes a financial management platform 3️⃣ Practical payment type: clearly marked prices, simple functions, stable payment MiPay is the 3rd one. Not the best, but certainly not the worst.

和Quant Alex @StochAlex07 讨论： SABR Theta与Spot Theta+Vol Theta+Cross Theta的异同与应用，以及SABR模型自洽性分析。 **English Summary of the Chat** **SABR Theta vs Spot Theta + Vol Theta + Cross Theta** The conversation between **Alex Wu** (white bubbles) and **Jeff Liang** (green bubbles) is a technical discussion focused on **SABR Theta versus Total Theta** (i.e., Spot Theta + Cross Theta + Vol Theta), model self-consistency, PDE residual, and the correct definition of SABR Greeks. ### Key Points Discussed: 1. **SABR Gamma = Spot Gamma** (first major question, raised by Jeff) Jeff asked whether SABR Gamma (\(\partial^2 P / \partial F^2\)) is identical to Spot Gamma and whether it includes the dependence of \(\sigma_B\) on \(F\). He also provided the full chain-rule expansion of SABR Gamma in terms of Black-76 Greeks. Alex confirmed the understanding and **later affirmed in code** that this is exactly how SABR Gamma is implemented in their system. 2. **SABR Theta vs Total Theta and Model Self-Consistency** (main topic, led by Jeff) Jeff shared a clear 3-point understanding: - SABR Theta is computed directly via the SABR approximation formula to obtain \(\sigma_B\), then applying the Black-76 chain rule: \(\partial P/\partial t =\) BS_Theta(\(\sigma_B\)) + BS_Vega \(\cdot \partial\sigma_B/\partial t\). - Total Theta is the exact decomposition from the SABR PDE (Spot Theta + Cross Theta + Vol Theta). - When the model is **fully self-consistent** (Residual = \(\partial P/\partial t + \mathcal{L}P = 0\)), SABR Theta = Total Theta; otherwise the difference is the unexplained PnL caused by the approximation error in the Hagan formula (especially pronounced in long-dated, high vol-of-vol, or high-skew options). 3. **Practical Implication – Theta Decomposition Decision** (comment by Alex) Alex noted that whether to perform Theta decomposition depends on the risk-management approach: - Without decomposition → use SABR Gamma vs. dP/dt. - With decomposition → SABR Gamma maps to Spot Theta, Vanna to Cross Theta, and Volga to Vol Theta. **Overall Tone**: The discussion is highly technical and collaborative. Jeff drives the conversation by asking clarifying questions and presenting a well-structured 3-point summary of his recent study. Alex provides confirmations, practical insights, and code-level validation. Both participants demonstrate a strong command of SABR model nuances, particularly the relationship between approximation error, PDE residual, and real-world risk management.