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Will McGugan discusses building Textual, a terminal-based GUI framework, and introduces Toad—a new CLI interface for agentic LLMs that runs other terminal apps internally and supports multiple AI backends via the Agent Client Protocol. By Will McGugan, Olimpiu Pop.

Some key takeaways:

• Textual User Interfaces (TUIs) are structured, full-screen displays for CLI applications that allow users to interact with programs through rich, navigable elements, unlike simple line-by-line commands. They look more like retro websites than plain terminal applications.
• Through emulators, complex applications built with Textual can be rendered in different environments, from terminals to web browsers.
• Building a GUI framework for the CLI, like Textual, is much more complicated than one might think, because you have just text and need to create everything from scratch.
• Even with significant innovation in areas like AI, the standard CLI client experience is quite rudimentary compared to the rich interactions that Textualise enables.
• The usage of agentic client protocol (ACP) allows the integration of any LLM agent, regardless if it’s on premises or in the cloud.

This interview showcases a significant advancement in terminal-based AI tooling. Toad addresses real developer pain points with existing CLI agents by applying years of TUI expertise. Its ability to embed other terminal applications and support multiple AI backends via ACP represents a meaningful step forward. The project fills a genuine gap—while AI agents become more prevalent, their CLI interfaces have remained primitive. McGugan’s approach of making complex functionality feel simple warrants attention from developers working with AI-assisted coding. You will also get links to further reading. Nice one!

Mastering coding agents requires understanding the orchestration harness, context management, and iterative loops—key to transforming AI-assisted development. By George Chiramattel.

The article begins by highlighting the rapid adoption of coding agents, with Claude Code making up a significant portion of GitHub’s public commits. It introduces the concept of mental models for working with these agents, emphasizing that the harness and context management are as crucial as the model itself.

The computer analogy is used to explain the model as the CPU, the context window as RAM, and the harness as the operating system. The core loop of coding agents is detailed, including capturing user goals, building prompts, running inferences, executing tool calls, and verifying outcomes. The article explains how the context window evolves with each interaction, potentially leading to slower and less accurate results over time.

It discusses common failure modes, such as attempting to build everything at once or forgetting what was previously done, and how harnesses can mitigate these issues. Practical tips are provided for improving the effectiveness of coding agents, including starting with a plan, treating context like RAM, ensuring clean handoffs between sessions, and making verification a control plane. The article concludes by emphasizing the importance of harness design in determining what is actually shipped and the need to adapt to new models as they are released. Nice one!

Build resilient microservices with Resilience4j’s Circuit Breaker pattern, safeguarding your APIs from cascading failures and ensuring graceful fallback responses. By Kshitish Nath.

In this detailed blog post you will learn about:

• Resilience4j’s Circuit Breaker pattern prevents cascading failures in microservices.
• The @CircuitBreaker annotation wraps service calls and triggers fallback logic.
• Configuration properties (sliding window, failure rate, wait duration) control breaker behavior.
• Fallback methods must be public, in the same class, have matching return types, and accept a Throwable pameter.
• Circuit breakers provide resilience, graceful degradation, and observability.
• Tuning configuration parameters is crucial for optimal performance and accuracy.
• Actuator can be used to monitor circuit breaker states and metrics.

This article provides a well-structured and practical introduction to using Resilience4j’s Circuit Breaker pattern for building resilient Spring Boot microservices. While not a revolutionary advancement, it represents a valuable and easily digestible guide for developers seeking to implement a crucial aspect of distributed system design. The clear code examples and step-by-step instructions significantly lower the barrier to entry for adopting this pattern. Good read!

DevOps principles extend beyond code to human systems, fostering transparency, feedback, and continuous improvement in leadership and team culture. By Brett Lee.

You will learn about:

• DevOps principles apply to human systems and leadership
• Observability provides visibility into team dynamics
• Short feedback loops enable faster learning
• Automation reduces cognitive load in leadership
• Continuous delivery fosters incremental progress
• Blameless postmortems build trust and insight
• Culture should be treated as a designed system
• Improvement should be an ongoing process, not a one-time initiative

This article provides a valuable perspective on how DevOps principles can be extended beyond technical systems to improve team culture and leadership practices. By framing human systems through a DevOps lens, it offers practical frameworks for creating more transparent, adaptive, and learning-oriented organizations. While some concepts may be familiar to those in DevOps circles, the article effectively translates these ideas into actionable leadership practices, representing a useful advancement in organizational development thinking. Good read!

CSS Anchor Positioning revolutionizes visual connections between UI elements without JavaScript or extra markup. By Roland.

CSS Anchor Positioning simplifies the process of creating visual relationships between UI elements. By defining an element as an anchor and specifying its geometry elsewhere using the anchor() function, you can create connections that remain intact even as content changes. This technique reduces the need for JavaScript and simplifies markup. In the author’s demo, comment and reply elements are connected visually using only CSS, showcasing the power and flexibility of anchor positioning.

You will learn following:

• The problem
• Enter anchor positioning
• Setting up the anchors
• Drawing the connection
• Reading the code
• Why this is exciting
• Browser support (reality check)
• See it in action

CSS Anchor Positioning is a significant advancement in CSS, enabling more intuitive and flexible visual relationships between UI elements. While browser support is still evolving, this feature deserves early exploration and experimentation. Good read!

Directory Traversal is a common but dangerous vulnerability that can affect applications when file paths are built using untrusted user input, or when file paths are used with unchecked input. Python applications are not immune to directory traversal attacks. By Maikel.

Directory traversal attacks occur when Python applications access files without validating or restricting user-supplied paths. The article emphasizes the severity of this issue, as it can lead to data exposure or remote code execution. To prevent directory traversal, the author recommends validating user input, restricting file access to specific directories, and using secure path handling techniques.

The main points and learnings from the blog post:

• Directory traversal attacks exploit unchecked user input in file paths.
• Python applications should validate user input, restrict file access, and use secure path handling.
• Always create a security design based on a threat model.
• Use a reliable security checklist before using any Python program.
• When developing Python applications, follow secure programming principles and validate code using trusted tools.
• The pathlib module provides robust path resolution and verification.
• Consider eliminating directory traversal possibilities by stripping path components from user input.

The provided vulnerable code example shows a function that concatenates user-controlled input into a filesystem path without validation. The secure mitigation uses the pathlib module to resolve the path, ensuring it remains within the intended base directory and raising a ValueError if it attempts to traverse outside that boundary. The article also suggests eliminating directory traversal possibilities by stripping all path components from user input if feasible. It concludes by encouraging readers to take control of their application security risk by using tools like Python Code Audit. Nice one!

The Temporal API is a modern replacement for JavaScript’s Date object, offering better date/time handling (time zones, calendars). Chrome/Edge 144 and Firefox now support it natively. By Alexander Lehner.

The Temporal API, now natively supported in major browsers (Chrome, Edge, Firefox), offers a robust alternative to the legacy Date object, with built-in time zone and calendar support. However, since Temporal is still a TC39 Stage 3 proposal, TypeScript lacks native type definitions, causing errors like "Cannot find name ‘Temporal’" in Angular projects. This article details a three-step approach to resolve this:

1. Install the polyfill as a dev dependency — only for type access, not runtime code.
2. Declare a global Temporal type - by importing types from the polyfill and assigning them to a global constant. This tricks TypeScript into recognizing the native browser API.
3. Use types explicitly - for variables/interfaces via TemporalType imports, ensuring full type safety.

The solution avoids bundling the polyfill’s 150 kB runtime code, relying instead on native browser implementations. A demo app demonstrates practical use cases like time zone pickers and date arithmetic. Challenges include ensuring browser support (Safari lagging) and managing type imports cleanly. This method is ideal for new Angular projects targeting modern browsers. Good tutorial!

Discover how CockroachDB Serverless achieves sub-second scaling from zero using multi-region cluster virtualization, balancing performance and cost for multi-tenant environments. By Murat.

This informative piece reads about:

• CockroachDB Serverless uses logical disaggregation to achieve sub-second scaling.
• The architecture splits the database into SQL and KV processes, with a shared, multi-tenant KV layer.
• LSM trees enable efficient multi-tenancy in the KV layer.
• The design prioritizes cost-effectiveness and elasticity for small customers.
• Trade-offs include increased RPC overhead and higher caching costs.
• Admission control mechanisms manage resource contention and ensure fairness.

It is a comprehensive overview of CockroachDB Serverless’ innovative architecture, highlighting its strengths in rapid scaling and cost-effectiveness for multi-tenant environments. While it acknowledges the trade-offs, such as increased RPC overhead and caching costs, the sophisticated admission control mechanisms demonstrate a practical approach to managing resource contention. This makes it a significant contribution to the field of serverless databases, offering a viable solution for small customers seeking elasticity and low costs. Good read!

This comprehensive article explores the intersection of machine learning and physics, proposing novel models and architectures that incorporate physical laws and geometric principles for more efficient, transparent, and robust AI systems. By Hyperbole.

Blog post reads about:

• PIML integrates physical knowledge and geometric principles into ML models
• By incorporating physical laws and symmetries, PIML can create more efficient, transparent, and robust AI systems
• The article covers various models and architectures, including Kuramoto models, directional statistics, and deep learning on non-Euclidean spaces
• PIML has potential applications in supervised learning, reinforcement learning, unsupervised learning, and latent space modeling
• Practical examples demonstrate the effectiveness of PIML in solving real-world problems

A novel approach is described that integrates physical knowledge and geometric principles. The proposed models and architectures have the potential to create more efficient, transparent, and robust AI systems that are better suited for a wide range of applications. While the concepts presented are advanced and require a strong background in mathematics and physics, the practical examples demonstrate the real-world relevance of these ideas. Nice one!

AWS details its response to recent npm supply chain attacks, emphasizing proactive detection, rapid response, and collaborative threat intelligence sharing. By Nikki Pahliney, Chi Tran, Albin Vattakattu, Charlie Bacon, Dan Dutrow, David Magnotti, Jeff Laskowski, Stephen Goodman, and Ryan Tick.

The article touches these topics:

• AWS demonstrates a rapid, systematic approach to npm supply chain incident response.
• Generative AI is being utilized for malware analysis and indicator expansion.
• Collaboration with the Open Source Security Foundation (OpenSSF) is critical.
• Continuous monitoring and anomaly detection are key to early threat identification.
• Layered security controls (scanning, monitoring, credential management) are essential.
• Maintaining an inventory of open-source dependencies is a vital preventative measure.
• These attacks often focus on credential harvesting and unauthorized access.

This article provides valuable insights into a real-world, large-scale response to a significant security challenge. While supply chain attacks aren’t new, the frequency and scale described represent an escalation, and AWS’s detailed response offers a practical blueprint for organizations to improve their own security posture. Interesting read!