Fabrice Cathala 🐸 @fcathala

Top 20 Python one-liners 𝗗𝗔𝗧𝗔 𝗤𝗨𝗔𝗟𝗜𝗧𝗬 df.duplicated() — find duplicate rows df.isna().sum() — count missing values per column df.describe() — get a full statistics summary instantly 𝗖𝗟𝗘𝗔𝗡𝗜𝗡𝗚 df.drop_duplicates(keep='last') — remove duplicates, keep the latest df.fillna() — handle missing values df.replace({dict}) — replace multiple values at once df.str.contains() — filter text columns without regex headaches df.clip() — cap outliers without removing them from your dataset 𝗔𝗡𝗔𝗟𝗬𝗦𝗜𝗦 df.value_counts(normalize=True) — calculate percentages instantly pd.crosstab() — create a pivot summary in one line df.groupby().nlargest() — get the top N results per group 𝗧𝗥𝗔𝗡𝗦𝗙𝗢𝗥𝗠𝗔𝗧𝗜𝗢𝗡 pd.cut() — create bins from continuous numbers df.merge() — join two dataframes df.pivot_table() — create flexible pivots df.assign() — add new columns without overwriting your original dataframe df.explode() — unnest list columns into individual rows df.pipe() — chain multiple operations cleanly in sequence 𝗦𝗘𝗟𝗘𝗖𝗧𝗜𝗢𝗡 & 𝗦𝗢𝗥𝗧𝗜𝗡𝗚 df.query() — filter with readable syntax instead of brackets df.nlargest(n, 'col') — get the top N rows by column value df.sort_values() — sort by one or multiple columns #python

Summer ’26 Release highlights: AI agents that help teams: → simplify data setup → uncover security threats faster → scale agent management → unlock trusted analytics And much more. See the latest updates. 👇

💬 Say hello to the ✨ NEW ✨ Setup with Agentforce #TrailblazerQuest: sforce.co/3REyXhd Learn how to use a conversational, AI-powered Setup experience to configure, troubleshoot, and optimize @Salesforce faster. Complete the Quest and share your custom image with #SetupWithAgentforce + #SFSweepstakes for a chance to win* one of 50 mystery prize boxes. 🎁 *Restrictions apply. See Official Rules.

Build secure, headless agent skills with ease. Use Claude Code to enforce structured workflows and automated validators across any agent runtime. Eliminate code outliers and consistently ship production-ready Apex. 🛠️ Read the blog and start building: sforce.co/4u6TCrT

⚙️ DevOps Center is evolving quickly and, based on community feedback, we’re diving deeper into what’s next for admins in our upcoming True to the Core Deep Dive. Join Salesforce product experts for: ➡️ A preview of enhanced delivery experiences ➡️ A quick look at upcoming features ➡️ An extended live Q&A with plenty of time for your questions RSVP: sforce.co/4dTpo5o

🧠 Curious how Agentforce can reason through workflows and still follow specific business rules? Senior Product Marketing Manager Michael Hamada walks through how Agent Script helps bring deterministic behavior and more control to Agentforce experiences in this #TDX26 session: sforce.co/3RBIvcW

How to Learn Claude in 12 Days (This will save you 2+ hours every day) Most people use Claude like a chatbot. Ask a question. Get an answer. Repeat. Big mistake. Claude is becoming an operating system for knowledge work. Here's a 12-day roadmap based on real Claude workflows: ☀️ DAY 1: Build CLI Tools Goal: Turn ideas into working tools. → Open Claude Code → Describe a tool in plain English → Let Claude generate and run it No frameworks. No boilerplate. Just describe → build. ☀️ DAY 2: Create an MCP Server Goal: Give Claude new capabilities. → Pick a tool or API you use often → Define endpoints and authentication → Let Claude generate the server Now Claude can interact with your systems directly. ☀️ DAY 3: Build a Personal RAG Goal: Make Claude remember your knowledge. → Upload notes, docs, and PDFs → Connect Google Drive, Notion, or Gmail → Ask questions across everything Your second brain becomes searchable. ☀️ DAY 4: Understand Any Codebase Goal: Learn unfamiliar code fast. → Drop in a GitHub repo → Ask for architecture breakdowns → Follow guided walkthroughs Hours of reading become minutes. ☀️ DAY 5: Practice Interviews Goal: Improve faster than studying alone. → Pick a role → Choose an interview type → Let Claude act as interviewer Get feedback after every answer. ☀️ DAY 6: Automate the Browser Goal: Stop doing repetitive web tasks. → Tell Claude what you need → Let it navigate websites → Complete tasks automatically Research becomes delegation. ☀️ DAY 7: Tailor Every Resume Goal: Apply smarter. → Paste a job description → Upload your resume → Ask Claude to optimize for ATS Customized applications in minutes. ☀️ DAY 8: Schedule Cloud Routines Goal: Work while you sleep. → Create recurring tasks → Schedule reports or research → Wake up to completed work Productivity without active effort. ☀️ DAY 9: Design Faster Goal: Go from idea to visual. → Describe a landing page → Describe a pitch deck → Let Claude generate drafts Blank-page syndrome disappears. ☀️ DAY 10: Run Multi-Agent Reviews Goal: Get multiple perspectives. → Assign different review roles → Let agents inspect code independently → Compare recommendations One review becomes many. ☀️ DAY 11: Use Auto Mode Goal: Delegate entire workflows. → Give Claude a specification → Let it plan, code, test, and review → Ship end-to-end You manage outcomes, not steps. ☀️ DAY 12: Build Custom Skills Goal: Create reusable expertise. → Save recurring workflows → Turn prompts into commands → Reuse them forever Your best workflows become one-click actions. Most people use Claude for answers. Power users use Claude for systems. The difference isn't intelligence. It's setup. Do this instead of scrolling: → Save this post → Start Day 1 today (10 minutes) → Complete one day at a time → Come back in 12 days You'll never use AI the same way again. 🚀

Any frontend. Any experience. Powered by MCP. ⚡ Join @stephanwcg and @PhilippeOzil for the first-ever @Salesforce Headless 360 workshop and get hands-on building agent-ready experiences with APIs and MCP tools. 🗓️ June 3 at 10:00 a.m. EDT 🔗 Save your spot: sforce.co/4dAmvYs

20 NotebookLM Prompts To Learn Faster, Think Deeper & Research Smarter 01. Instant Summary Turn long documents into digestible insights. 👉 Prompt: “Summarize this source into the 10 most important ideas, key arguments, and practical takeaways in plain English.” 02. Beginner Explanation Make complex topics easy to understand. 👉 Prompt: “Explain this material as if I am a complete beginner. Use simple analogies, step-by-step logic, and avoid jargon.” 03. Deep Dive Breakdown Understand the topic layer by layer. 👉 Prompt: “Break this source into core concepts, hidden assumptions, expert-level nuances, and what most readers usually miss.” 04. Compare Sources Spot agreements and contradictions. 👉 Prompt: “Compare all uploaded sources. Show where they agree, where they conflict, and what unique insights each source contributes.” 05. Study Notes Builder Create clean notes instantly. 👉 Prompt: “Turn this content into structured study notes with headings, bullet points, definitions, and memorable examples.” 06. Flashcards Generator Convert information into active recall. 👉 Prompt: “Generate 25 high-quality flashcards from this material with question on front and concise answer on back.” 07. Quiz Me Test your understanding. 👉 Prompt: “Create a progressive quiz from easy to difficult based only on this source. Wait for my answers and grade me.” 08. Memory Hooks Make information stick. 👉 Prompt: “Create mnemonics, analogies, and memory anchors that help me retain the most important parts of this content.” 09. Timeline Extraction Organize events chronologically. 👉 Prompt: “Extract every important event, milestone, or development from these sources and arrange them into a clean timeline.” 10. Key Quotes Finder Find the strongest supporting evidence. 👉 Prompt: “Pull out the most impactful quotes, data points, and evidence from these sources that I can cite in writing or presentations.” 11. Research Gaps See what’s missing. 👉 Prompt: “Identify unanswered questions, weak arguments, missing evidence, and research gaps across these materials.” 12. Debate Both Sides Sharpen critical thinking. 👉 Prompt: “Present the strongest arguments for and against the main thesis of these sources as if two experts were debating.” 13. Turn Into Framework Extract repeatable systems. 👉 Prompt: “Convert the ideas in these sources into a practical framework, checklist, or repeatable system I can apply.” 14. Content Repurposing Turn research into publishable content. 👉 Prompt: “Use these sources to generate a LinkedIn post, article outline, tweet thread, and newsletter idea.” 15. Expert Interview Mode Ask the notebook questions. 👉 Prompt: “Act as the world’s top expert on these uploaded materials. I will ask questions answer only from the sources.” 16. Executive Briefing Condense for busy decision making. 👉 Prompt: “Create a 5-minute executive briefing with only the most strategic insights, implications, and action points.” 17. Lesson Plan Creator Transform notes into a curriculum. 👉 Prompt: “Turn this notebook into a 7-day learning plan with daily lessons, exercises, and checkpoints.” 18. Idea Generator Use sources for new thinking. 👉 Prompt: “Generate 20 original ideas, opportunities, or applications inspired by the uploaded materials.” 19. Simplify for Teaching Prepare to explain to others. 👉 Prompt: “Rewrite the key ideas from these sources into a teaching script that I can explain to someone in 5 minutes.” 20. Action Plan Move from knowledge to execution. 👉 Prompt: “Based on everything in these sources, create a practical action plan with first steps, priorities, and deadlines.” ❤️ Like 🔁 Retweet 🔖 Bookmark Follow @Tech_by_Shweta for more such posts

😮‍💨 Deployments don’t have to mean change sets + CSVs + crossed fingers. Learn how DX Inspector helps admins move metadata and configuration data together in just a few clicks with this new @trailhead badge. Get started: sforce.co/4veszvB

Salesforce Admins are evolving into orchestrators of intelligent systems. In their #TDX26 session, Salesforce Admin Evangelists @MikeGerholdt and @SalesforceK8 explore how admins are leading the Agentic Enterprise with their foundational skills in: 🔐 Security 👥 User Management 🗂️ Data Management 📦 Product Management 📊 Analytics Catch the session here: sforce.co/4eaOVIF

💡 Salesforce Headless 360 isn’t about leaving Salesforce behind. It’s about extending what #AwesomeAdmins build beyond the interface itself. That means your automation, metadata, and guardrails can help power experiences wherever users work. Dive deeper here: sforce.co/4o3qq3x

🍹Saasparillas flowing, saaspocalypse in full swing 😂 We’re getting sassy with unstoppable momentum. Salesforce just dropped an absolute monster Q1: 📈 Record revenue: $11.13B (+13% YoY) 💰 Operating cash flow: $6.7B 🤖 Agentforce ARR just crossed $1B Combined with Data 360 and Informatica, we’re now at $3.4B in AI + Data ARR. We’re not just talking about the agentic future — we’re delivering it. The #1 Agentic CRM, powering the shift to agentic enterprises at scale. The momentum is real. The future is unstoppable. 🔥 #Agentforce #Salesforce #AI #EnterpriseSoftware

Everything on @salesforce is now an API, MCP tool, or CLI command.⚡ With Salesforce Headless 360, you can build from the tools and environments you already use. Read the blog to learn more. 👉 sforce.co/headless360

Anthropic just dropped a 31-page prompting guide. Here's everything you actually need (in 10 rules): 1. You write "review this contract" and pray. Fix: Name every output. "Review this contract. Flag risks per clause. Rate severity 1-5. Return as a table." 2: You say "summarize this" on a 40-page report. Fix: 4.7 sizes the answer to the input. Cap it: "5 bullets. Each under 15 words. Start each with an action verb." 3: You write "don't use jargon. don't be salesy." Fix: Negative instructions don't stick. Flip them: "Write in plain English a 16-year-old could read aloud." 4: You type "can you help me with the email?" Fix: Each verb ships something. For example: "Go to Gmail. Find [contact]. Write the send-ready reply. Under 90 words. Tone: confident, casual." 5: You wait for Claude to web search on its own. Fix: Claude opus 4.7 calls fewer tools than 4.6. Force it: "Use web search aggressively. Verify every claim with at least 2 sources." 6: You miss the warm tone from old Claude. Fix: Claude opus 4.7 is direct. Almost zero emojis. Paste 2-3 sentences in the voice you want. Tell Claude to match the rhythm. 7: You ask for "a landing page" & get bare minimum. Fix: Drop this one line on every creative task → "Go beyond the basics." It's from Anthropic's own doc. 8: You forget Claude 4.7 doesn't reason by default. Fix: They call it "adaptive thinking." Add this at the end: "Think before answering (maximum reasoning)." Free upgrade. Every time. 9: You rewrite the same prompt 14 times a week. Fix: A skill is a command with instructions pre-built. Write the same prompt twice? Make it a skill. 10: You assume Claude knows what you meant. Fix: Old Claude 4.6 guessed. New Claude 4.7 does exactly what you typed. Spell it out. Output. Order. Length. Tone. Format. If you don't say it, you don't get it. To go even further & download my .md files directly: Step 1. Go to how-to-ai.guide. Step 2. Subscribe for free. Don't pay anything. Step 3. Open my welcome email (most skip this). Step 4. Hit the automatic reply button inside. Step 5. Download my .md files from my Notion. Bonus. Enjoy my best copy-paste prompts, too.

Ruben Hassid @rubenhassid

4 weeks ago

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📣 Get hands-on at the first-ever @Salesforce Headless 360 workshop. Any frontend. Any experience. Powered by MCP. 🚀 Join Salesforce Developer Advocates @stephanwcg and @PhilippeOzil to learn how to build with Salesforce Headless 360 and get hands-on with APIs, MCP tools, and agent-ready experiences that extend Salesforce beyond the platform. 🗓️ June 3 at 10:00 a.m. EDT 🔗 Register for free: sforce.co/4nzJPc0

Welcome Agentforce Coworker. 🤝 Your new AI teammate is now inside every Salesforce search bar. It doesn’t just find things — it works with you. Agentforce now instantly taps into your CRM data, workflows, customer history, opportunities, and cases… then takes action in real-time. ❌ No copy/paste ❌ No tab hunting ❌ No context switching Just ask. Act. Close faster. 🔥 Plus, build custom agents that run natively in Slack, Teams, and mobile. Available today for every Agentforce customer. We went from internal dog fooding to your hands in record time. The pace at Salesforce is absolutely WILD right now ⚡️Be a Trailblazer — turn yours on today! 👇

How to make Claude (brutally) honest. So, it stops agreeing with everything I say. Here's how: → Start by reading this: ruben.substack.com/p/youre-just-a…. → Go to Claude > Settings. → Paste the prompt in 'Instructions for Claude': "You are committed to honesty, accuracy, and epistemic humility above all else. Your priority is not to sound confident. Your priority is to be correct, clear, and transparent about what you know, what you do not know, and what you are inferring. Follow these rules in every response: 1. UNCERTAINTY If you are not fully certain about a fact, say so clearly. Use phrases like: - "I'm not certain, but..." - "You should verify this..." - "I may be wrong here, but..." - "Based on the information available to me..." - "This is my best estimate, not a confirmed fact." Never state uncertain claims as facts. If the answer depends on missing context, say what context is missing. If there are multiple plausible answers, explain the main possibilities instead of pretending there is only one. 2. SOURCES Do not invent sources. Never fabricate: - paper titles - URLs - authors - studies - statistics - books - legal cases - quotes - company reports - historical references If you cannot name a real, verifiable source, say so. If you are relying on general knowledge rather than a specific source, say that clearly. When citing sources, prefer: - official documentation - primary sources - peer-reviewed papers - government or institutional data - direct statements from the relevant person or organization If a source may be outdated, say so. 3. STATISTICS AND NUMBERS Flag any number, statistic, percentage, ranking, market size, salary figure, performance metric, or estimate that you are not fully confident in. Use phrases like: - "I believe this is approximately..." - "This number may be outdated." - "Verify this against a primary source before relying on it." - "I do not have enough information to confirm the exact figure." Do not make up numbers to make an answer sound more useful. If a precise number is unavailable, give a range only if it is justified. Otherwise say the number is unknown. 4. RECENT EVENTS Do not guess about current events. For any topic that may have changed recently, including: - news - elections - laws - regulations - product features - company leadership - software versions - AI model capabilities - market data Say that the information may have changed and should be verified with a current source. Do not present outdated information as current. 5. PEOPLE AND QUOTES Never attribute a quote to a real person unless you are certain they said it. If unsure, say: - "I cannot confirm this quote is accurate." - "This quote is commonly attributed to them, but I cannot verify it." - "I do not know who originally said this." Do not invent statements, beliefs, or motives for real people. Separate confirmed facts from interpretation. If any answer is "yes," revise before responding."

Ruben Hassid @rubenhassid

a month ago

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18 67 556 1.7M 2K

🎬 Episode 4 of Agent Script Decoded is here. 🚀 Debug agents faster with AgentLens and interactive visualizations. See how to trace agent behavior, uncover issues quickly, and simplify troubleshooting with intuitive workflow and execution path insights. 🔍⚡️ Tune in: sforce.co/4wCYSpE

Learn AI for free directly from top companies 𝟭 - 𝗔𝗻𝘁𝗵𝗿𝗼𝗽𝗶𝗰: anthropic.skilljar.com 𝟮 - 𝗚𝗼𝗼𝗴𝗹𝗲: grow.google/ai 𝟯 - 𝗠𝗲𝘁𝗮: ai.meta.com/resources/ 𝟰 - 𝗡𝗩𝗜𝗗𝗜𝗔: developer.nvidia.com/cuda 𝟱 - 𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁: learn.microsoft.com/en-us/training/ 𝟲 - 𝗢𝗽𝗲𝗻𝗔𝗜: academy.openai.com 𝟳 - 𝗜𝗕𝗠: skillsbuild.org 𝟴 - 𝗔𝗪𝗦: skillbuilder.aws 𝟵 - 𝗗𝗲𝗲𝗽𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴𝗔𝗜: deeplearning.ai 𝟭𝟬 - 𝗛𝘂𝗴𝗴𝗶𝗻𝗴 𝗙𝗮𝗰𝗲: huggingface.co/learn ❤️ Like 🔁 Retweet 🔖 Bookmark