A small macOS command-line tool and companion agent skill that draws large, click‑through arrows, boxes and annotated signs on screen so automated agents can point human users at UI elements without ever clicking or stealing focus. Implemented as a single Swift binary with no daemon, no telemetry and MIT license, it runs on every display and Space, requires no screen‑recording permission to draw, and integrates as a skill for Claude Code and Codex. Typical uses include prompting a user to “click Allow” on permission prompts, guiding through onboarding steps, remote help or demos, and visual debugging; it can also speak the label, render arrows into PNGs, and supports a time limit or explicit start/stop lifecycle tied to the agent process.
Controls and targets are explicit: commands let an agent point by element label/app, by coordinates, or start/stop persistent pointers for a window or tab. Arrows follow or hide when their target is covered, can bring the target window forward (or not), and accept many visual options - shape (bend/straight/zigzag/spiral), style (arrow/ring/box), sizes, colors, borders, close button, and text color. Multiple arrows manage sign placement to avoid overlap. Targets include rects, elements, mouse, windows, and Peekaboo snapshots; the tool reports exit codes and diagnostics (doctor) showing which shell app needs Accessibility permission when required.
Summary generated by AI from the linked article. hn.today is not affiliated with Hacker News or Y Combinator.
OpenAI fired three safety researchers for allegedly mishandling sensitive information, but they dispute the claims and warn it creates a chilling effect on internal communication. The researchers argue that their dismissal signals a shift away from an open safety culture at the company. (techcrunch.com)
Hugging Face tests a memory layer called galahad-kv that stores the key-value state of text blocks on local NVMe disks, enabling large language models to handle up to 50 million tokens. This approach avoids recomputing internal states, improving efficiency for very long prompts. (huggingface.co)
Apogee is a private AI summarizer inspired by Mozilla's Orbit, which the creator rebuilt locally after Mozilla discontinued Orbit. The project is open source and available on GitHub, focusing on reading comprehension and privacy. (github.com)
OpenTelemetry introduces native design principles that enable products to export telemetry data to any observability stack seamlessly. The update emphasizes compatibility, scalability, and new features across various SDKs and agents to improve observability infrastructure. (opentelemetry.io)
Users discuss the advantages of subscribing to hosted LLM services versus deploying open-source models locally. They share reasons related to cost, convenience, and customization options. (news.ycombinator.com)
Four coding agents were given a $100 budget to build a functional PDF editor, but their implementations had noticeable bugs and shortcomings. The experiment highlights that current AI agents struggle with goal pursuit and user interaction, leading to subpar software quality. (blog.nielstron.de)
Today's best Hacker News stories, summarized and screenshotted, one email a day.