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共 36905 篇Free Live Webinar: Testing AI Agents in Python for Real-World Reliability
AI agents are getting smarter fast. They can reason through tasks, manage workflows, call tools, and automate decisions across applications. But as these systems become more capable, one challenge becomes impossible to ignore: reliability. How do you know your AI agent is making the right decisions consistently? How do you test workflows that involve memory, reasoning, and multiple execution steps? And how do you debug failures when outputs become unpredictable? That’s exactly what this free live webinar, “ Testing AI Agents in Python: Building Reliable Evals with LangGraph & LangSmith ,” is focused on. The session includes a “ Live demo of the AI agent evaluation pipeline ,” where you’ll see how developers are building structured evaluation workflows using LangGraph and LangSmith to test, trace, and improve AI agent performance in real-world scenarios. Here is the link to register .. Who Should Join This Session? This webinar is designed for developers and technical teams working with AI systems, especially: Python developers building AI agents or LLM workflows AI engineers exploring evaluation and observability Architects designing production-ready AI systems Product teams experimenting with AI automation Founders building intelligent applications faster Whether you’re actively deploying AI agents or still evaluating the ecosystem, this session will give you a clearer understanding of how reliable AI systems are actually built. What You’ll Learn During the Webinar This isn’t a high-level AI trends session. The focus is practical implementation, testing workflows, and evaluation strategies developers can actually use. In this webinar, you’ll learn: Why evaluation matters for modern AI agents How LangGraph helps manage complex agent workflows How LangSmith can trace and monitor agent execution Ways to create repeatable and scalable evaluation pipelines Practical approaches for debugging and improving AI agent behavior See the AI Evaluation Pipeline Live One of the b
I Spent 2 Months Building a 150+ Tool Website with $0 Server Cost
📚 This is Part 1 (Opening) of the UtlKit Tech Series — Next: [Architecture & Trade-offs →] As a frontend developer, I've used countless online tools. And almost all of them suck: Sign-up required — just to format a JSON string? Ad overload — the actual tool gets squeezed into a corner Privacy concerns — your JSON might contain API keys, and the tool sends it to a server Fragmented — formatters on one site, Base64 on another, hashing on a third So I decided to build one that doesn't: no sign-up, no ads, pure client-side computation, data never leaves the browser. The goal was simple — if I need this tool, someone else does too. The result is utlkit.com : 150+ tools, 8 categories, zero server costs. Requirements Requirement Meaning Pure client-side All logic runs in the browser Zero server cost Static hosting, no Node.js backend 150+ pages One page per tool, SEO-friendly Bilingual (EN/ZH) i18n support Dark/Light mode User preference Mobile responsive Works on all devices Why Not Other Frameworks? Option Pros Cons Verdict Vanilla HTML/JS Simple Managing 150+ pages is painful Too slow VuePress / VitePress Fast Docs-oriented, not for interactive tools Not flexible enough Nuxt SSR Powerful Needs a server Violates zero-cost principle Next.js 15 + output: 'export' SSR SEO + client interactivity + static hosting Has pitfalls (covered later) ✅ Best balance The Key Decision: output: 'export' // next.config.js const nextConfig = { output : ' export ' , // Static export trailingSlash : true , // Required for static files images : { unoptimized : true }, // No image optimization server } This means: ✅ Build output is plain HTML/CSS/JS files ✅ Deployable to any static host (Cloudflare Pages, Vercel, GitHub Pages) ✅ Zero server cost ❌ No API Routes, no Server Components, limited dynamic routing Deployment: Zero Cost on Cloudflare Pages Build output : out/ directory, ~14 MB Hosting : Cloudflare Pages Domain : utlkit.com Monthly cost : $0 Build Pipeline npm run build → next build ( o
Developers Confess: The Unfiltered Truth
We asked developers to spill their little dirty secrets, the lies they tell their managers and what actually creates tension in teams. One theme that kept coming up was the gap between how software development looks from the outside and what it actually looks like in practice. submitted by /u/aisatsana__ [link] [留言]
Pinecone: The Vector Database for Machine Learning
Take Aways Performance and Scalability : Pinecone is a managed machine-learning database that provides exceptional levels of performance and scaling capability due to its cloud-based design. Because of its distributed architecture and ability to do near-neighbor searches, Pinecone handles such tasks as similarity searching and anomaly detection on very large datasets efficiently. Easy to Integrate : One of the standout benefits of Pinecone is how easily it integrates through a high-level API and SDKs across several programming languages. This gives developers a real productivity boost by making vector storage, indexing and querying for machine learning applications far less complicated to implement. Strategic Factors : Pinecone brings advanced features and managed services that genuinely enhance machine learning workflows, though it does come with considerations like recurring costs and vendor lock-in. Organizations should think carefully about these factors alongside the benefits of streamlined database management and optimized performance before committing to adoption. The importance of storing and accessing information properly to build the best possible machine learning model really cannot be overstated. Pinecone addresses this directly by offering a Vector Database built specifically for ML queries, creating a strong opportunity to tap into the power of cloud databases. Designed from the ground up as a cloud-native application, Pinecone makes it straightforward to index and search complex, high-dimensional vector data — which in turn makes building state-of-the-art machine learning applications much more approachable and helps software development companies deliver more value to their clients through custom software development. What is Pinecone? Pinecone is a fully managed Vector Database that lets you store, index, and query complex vector data quickly and efficiently. Because of its vector-native design, the primary use cases for Pinecone fall within similar
Why I used vsock instead of TCP in a Firecracker serverless platform
submitted by /u/viks98 [link] [留言]
Building a Soulbound Credential on Solana with Token-2022
How combining Non-Transferable and Permanent Delegate extensions changed my understanding of digital ownership on Solana. Imagine earning a high rank in an online game. You can use it. You can benefit from it. Other players can see it. But you cannot transfer that rank to someone else. If you break the game's rules, the game company can revoke it. And if the game gets acquired by another company, authority over that rank can be handed over to a new administrator. That was the closest mental model I found for understanding one of the most interesting things I built this week on Solana: a credential token using Token-2022 extensions. What are Token Extensions? One thing I've learned during this phase of the challenge is that Token-2022 is not just about creating tokens. It allows you to define behaviors directly at the token level through extensions. Instead of relying on application logic to enforce rules, the token program itself can enforce them. For this experiment, I combined two extensions: Non-Transferable — prevents ownership from being transferred to another wallet. Permanent Delegate — gives a designated authority the ability to manage the token even after it has been issued. Individually, those are useful. Together, they create something that behaves less like a currency and more like a credential. The Transfer That Was Supposed to Fail After creating the token, I tried transferring it. spl-token transfer Gn5PZzwDENvpQESaFwgVqzCUFba5sSka59iLtjFTYNvz 1 $THIRD_PARTY \ --owner ~/recipient-wallet.json \ --fee-payer ~/.config/solana/id.json \ --program-id TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb \ --fund-recipient --allow-unfunded-recipient The result: Recipient: ErYcpQYcpdoaaiufrB3MqQE2QaVEhoACZGcssppszPpY Recipient Token Account: 8CvyoKt11UbkWYRVXey6UKK2gqQcvVvbh9Lv3crzo8C3 Funding ATA: 8Cvyokt11UbkWYRVXey6UKK2qqQcvVvbh9LV3crz0803 Status: ❌ Transaction failed during simulation Error: Transfer is disabled for this mint (Token-2022 restriction) What I liked a
Integrated Biological Data Collection Platform: An Architecture for Automated Curation of Public Repositories
Introduction In contemporary research, the volume of biological data deposited in public repositories is growing exponentially. The Gene Expression Omnibus (GEO), NCBI Gene, PubMed, and UniProt accumulate thousands of new records daily, including sequences, expression profiles, scientific articles, and functional annotations. On the one hand, this scenario represents a unique opportunity for biomedical research. On the other hand, the diversity of data formats, access protocols, and metadata models creates a significant barrier: each source requires a specific collector, distinct rate-limiting strategies, and its own validation logic. Above all, the lack of standardization in data storage compromises the reproducibility of scientific studies. The need for integrated tools capable of unifying data extraction, curation, and persistence has been widely discussed. In practice, ad hoc solutions such as isolated scripts for individual repositories generate redundant work and make maintenance difficult. First and foremost, it is necessary to establish an architecture that treats data collection as a service rather than a collection of scattered artifacts. This work presents Project 1 of the Integrated Bioinformatics Platform: a containerized Biomedical Data Collector coupled with a Data Lake. Its objective is to provide a REST API capable of triggering asynchronous data collections from the four aforementioned sources, storing immutable raw data in MinIO, and persisting metadata in PostgreSQL, all while ensuring traceability and resilience. Development The system architecture is divided into three main layers. The first is the API and orchestration layer , implemented using FastAPI. Its five endpoints — POST /collections , GET /collections , GET /collections/{id} , GET /collections/{id}/download/{dataset_id} , and GET /health — expose a clean interface for initiating and monitoring collection processes. The second layer is the collector engine , composed of abstract classe
Testing Discipline: A Beginner's Guide
Image by upklyak on Magnific Run an application. Click a few buttons. If the terminal doesn't have errors, then everything is working. Right? What's the point of writing tests if all seems to be fine. Let's explore testing discipline and why it's a habit every developer should build early. What is Testing Discipline? Testing discipline is the habit of verifying that your code works. It's not something you do at the end of a project. It's something you build into your development process. The goal is simple. Catch bugs as early as possible. A bug found while writing code usually takes minutes to fix. The same bug found in production can take hours to investigate, reproduce, and resolve. The earlier you find problems, the less expensive they become. Different Types of Tests When people talk about testing, they're usually referring to three categories. The first is unit testing . A unit test checks a single piece of functionality, usually a function or method. These tests are fast and easy to write, making them the best place for beginners to start. Next are integration tests . These verify that different parts of your application work together correctly. For example, does your service communicate properly with the database? Finally, there are end-to-end tests . These simulate a real user interacting with the application from start to finish. They provide the most realistic results but are usually slower and more complex. As a beginner, I recommend that you should focus on unit tests first. Different Testing Approaches As you continue learning, you'll come across different testing methodologies. One of the most popular is Test-Driven Development , often called TDD. The idea is simple. Write the test first. Watch it fail. Write enough code to make it pass. Many developers like this approach because it forces them to think about requirements before writing implementation details. You may also hear about Behaviour-Driven Development , or BDD. This approach focuses on desc
From vibe coding to clear thinking: what non-technical builders need in the age of AI
Over the past few months, I’ve increasingly noticed something through my network: more people from non-technical backgrounds are building software as AI tooling improves. Designers are prototyping product ideas. Product managers are testing workflows. Founders are building MVPs. Operators are creating internal tools. People who would not have called themselves “technical” a year ago are now using AI to make ideas tangible. I think this is genuinely exciting. It has never been easier to create. I even attended a hackathon where participants only had 20 minutes to build a demoable product! This raises the question: When AI makes building easier, how do we make sure understanding does not disappear? I recently published Thinking in the Age of AI , a guide for software engineers (you can check out my previous post here ). That guide focused on individual reflection for engineers: how to keep developing technical intuition, reasoning, and judgment while using AI tools. But the landscape has changed quickly. AI-assisted building is no longer only an engineering workflow. It is becoming a builder workflow accessible to all. And by builders, I mean anyone using AI to turn ideas into software-like artifacts: vibe coders designers product managers founders operators marketers students non-engineering team members So I wanted to create a new version of the system for this wider builder audience. Thinking in the Age of AI: Builder Edition The opportunity is real I do not think we should dismiss this shift. I have spoken with people from all kinds of backgrounds who are actively building now. People who previously had to wait for engineering time can now create something concrete. That changes the conversation. Instead of describing an abstract idea, you can show a flow. Instead of writing a long product spec, you can prototype the interaction. Instead of asking “would this work?”, you can test a rough version. That is powerful. But there is a trap. A prototype can look much mor
I built an AI contract review and reader tool for plain-language contract understanding
I recently launched SpotClause, a small AI contract review and reader tool. The idea came from a simple problem: contracts are often difficult to read, especially for freelancers, consultants, and small teams who receive agreements but do not work with contract language every day. SpotClause helps users: summarize contracts in plain language identify key clauses understand payment terms, renewal terms, cancellation language, obligations, and deadlines compare two contract versions and see added, removed, changed, and unchanged wording I also added a Contract Clause Library with plain-language explanations of common clauses like cancellation clauses, renewal clauses, payment terms, confidentiality clauses, and notice periods. You can try the AI Contract Review Tool here: AI Contract Review Tool You can explore the Contract Clause Library here: Contract Clause Library SpotClause is not a law firm and does not provide legal advice. The goal is to help people understand contract language more clearly. I would appreciate feedback on: whether the homepage explains the product clearly whether the AI contract review page feels understandable what clause explanations would be useful to add next
The Download: China’s brain implant ambitions
This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. China has approved the world’s first invasive brain-computer chip—here’s what’s next Sitting in the courtyard of his house in China’s Henan province last October, Dong Hui decided to try holding a…
ASUS' ROG Xbox Ally X20 bundle includes a limited-edition OLED Ally X handheld PC and AR gaming glasses
ASUS' new ROG Xbox Ally X20 has mostly the same hardware as last year's handheld, but now comes with a new OLED panel.
Monthly Getting Started / Web Dev Career Thread
Due to a growing influx of questions on this topic, it has been decided to commit a monthly thread dedicated to this topic to reduce the number of repeat posts on this topic. These types of posts will no longer be allowed in the main thread. Many of these questions are also addressed in the sub FAQ or may have been asked in previous monthly career threads . Subs dedicated to these types of questions include r/cscareerquestions for general and opened ended career questions and r/learnprogramming for early learning questions. A general recommendation of topics to learn to become industry ready include: HTML/CSS/JS Bootcamp Version control Automation Front End Frameworks (React/Vue/Etc) APIs and CRUD Testing (Unit and Integration) Common Design Patterns You will also need a portfolio of work with 4-5 personal projects you built, and a resume/CV to apply for work. Plan for 6-12 months of self study and project production for your portfolio before applying for work. submitted by /u/AutoModerator [link] [留言]