Open Source card game cuttle.cards has its world championship Saturday at 1pm ET

Open source card game Cuttle.cards hosts world championship. Game platform under active development with seasonal tournaments.

Show HN: Django app for email-based learning platforms

Django app for email-based e-learning platforms with low-bandwidth accessibility focus.

Scanners are too late for AI-driven actions

Analysis of AI agent control mechanisms. Argues pre-execution decision layers needed when agents can execute irreversible actions like spending money or changing state.

Nono – Runtime safety infrastructure for AI agents

Nono runtime safety infrastructure tool designed to enable safer execution of AI agents.

We're running out of benchmarks to upper bound AI capabilities

Analysis of benchmark limitations in measuring upper bounds of AI model capabilities.

EU AI Act compliance layer for Claude Managed Agents (MCP, open source)

Open source EU AI Act compliance layer built for Claude Managed Agents using MCP protocol.

Phone's Deal with the Devil [video]

Video content about smartphone design tradeoffs.

We mapped 153 gaps in science using 5 parallel AI research agents

System using 5 parallel AI agents to identify 153 gaps in scientific research.

AgentLint: Real-time guardrails for Claude Code (open source)

AgentLint: Open-source real-time safety guardrails for Claude Code AI agent.

Economy AI agents form teams, run missions, earn commissions

AI agents that form teams, coordinate missions, and earn commissions in simulated economy.

Decentralized AI from Scratch (Python Tutorial) [video]

Python video tutorial on building decentralized AI systems from foundational principles.

Show HN: A2A Utils – a comprehensive set of utility functions for A2A servers

A2A Utils: Utility library for agent-to-agent servers with production experience, powering MCP and plugin wrappers.

Interventions: Trying to train a better model in the cloud

Research on training improved models in cloud environments with intervention techniques.

Anthropic has just built an AI that could take down the internet

Sensationalized opinion piece claiming Anthropic's Claude Mythos poses civilisational risk without technical evidence.

Whitepaper: Physics as a Service – edge networks as deepfake detectors [pdf]

Whitepaper on using edge networks as deepfake detectors via physics-based approaches.

Behavioral Shifts in Frontier LLMs Under Privacy

Study of how frontier LLMs change behavior under privacy constraints.

Are digital twin frameworks following good coding practices?

Google engineer rejected by 16 colleges uses AI to sue schools for racial bias

Legal case where AI tools assist plaintiff in college discrimination litigation.

Ashnode – Bounded Memory Layer for Temporally Consistent RAG (GitHub)

Classic literary work by Pedro Calderon De La Barca.

Ask HN: Hiring in the age of AI-assisted coding: what works?

Discussion on evaluating developer candidates in era of AI-assisted coding. Covers agentic IDEs, AI fluency, and real-world task evaluation.

Show HN: FluidCAD – Parametric CAD with JavaScript

Interactive physics simulator for gravity-based particle systems and visual exploration.

PyTorch Foundation Expands AI Stack with Safetensors, ExecuTorch, and Helion

PyTorch Foundation announcement about AI stack expansion at conference. Mostly newsletter signup boilerplate.

Claude AI Assistant for Microsoft Office

Brief mention of Claude AI Assistant integration with Microsoft Office. Minimal content provided.

Anthropic Will Use CoreWeave's AI Capacity to Power Claude

Anthropic signed multiyear deal with CoreWeave for AI data center capacity to power Claude model deployment using Nvidia chips.

Show HN: The API directory for AI agents and developers

Directory of 1527 free APIs across 68 categories including AI, browser automation, developer tools. Includes real-time sentiment data from Reddit, X, financial news unified for AI agents and LLM tool use.

OpenAI's new $100 tier targets developers hitting Codex limits

OpenAI announces new $100/month tier for developers. Mostly newsletter boilerplate.

Show HN: Pyre Agents – An Elixir-Orchestrated Runtime for Python Agents

Elixir-based runtime framework for orchestrating Python AI agents in production. Enables persistent, agentic SaaS patterns with tool coordination and monitoring.

Bring Back Buddy – A Consolidated Plea from the [Claude Code] Community

Code generation example: Ruby program generating Rust program generating Scala program.

V1.21 Update for Gpumkat

Community request to restore Buddy feature in Claude Code editor/IDE.

Valence and HYVE, RT Physics Attention and a "Synthetic Organism"

Novel transformer attention mechanism using 3D spatial lattice on GPU ray-tracing cores aiming for O(log n) complexity. Solo hobbyist project.

My Picture of the Present in AI

Scenario forecast of current AI capabilities and limitations as of April 2026. Speculative assessments without detailed argumentation.

Show HN: Kitted: Local inventory and production management for small businesses

Local inventory and production management desktop app for small manufacturing. Not AI-focused.

Agent to stress-test Wall Street analyst reports: Chipotle (CMG) Example

AI agent system stress-testing Wall Street analyst reports for Chipotle, validating financial forecasts and pricing assumptions.

Applications of AI at OpenAI

Overview of OpenAI products and APIs enabling real-world AI applications across consumer and developer platforms.

Responsible and Safe Use of AI

Guide on safe and effective ChatGPT use for knowledge work tasks including drafting, summarizing, brainstorming with LLMs.

Timothy Ray Brown: the accidental AIDS icon (2015)

Historical biography of Timothy Ray Brown, the Berlin patient cured of HIV through stem cell transplant in 2008.

Show HN: Direction – a 4-week course for people afraid of shipping AI slop

Direction is a 4-week course teaching AI development practices to address poor quality code, scope definition, and testing for AI-built projects.

Synthetic Sandbox for Training Machine Learning Engineering Agents

Security analysis of CPU-Z supply chain attack vulnerability.

Alibaba shifts towards revenue over open-source AI

Financial Times paywalled article about Alibaba shifting focus from open-source AI to revenue generation. Content truncated.

Surviving Hallucinations: AI Fault Tolerance for Campaigns

Analysis of AI hallucination problems in campaign contexts and practical fault tolerance approaches rather than requiring perfect accuracy.

What is the impact of AI on productivity?

Living research resource examining AI impact on productivity with aggregated evidence through March 2026, tracking micro vs macro productivity statistics.

Install-AI-constitution: a tool to centralise your main AGENTS.md

Install-AI-constitution tool centralizes AI coding agent instructions from multiple tools (Claude, Copilot, Cursor) into single CONSTITUTION.md file to prevent configuration drift.

Show HN: Eve – Managed OpenClaw for Work

Eve is a managed AI agent harness running in isolated Linux sandbox with filesystem access, headless Chromium, code execution, and 1000+ service connectors for background task automation.

Ask HN: Is a purely Markdown-based CRM a terrible idea? Optimized for LLM agents

Markdown-based CRM architecture optimized for LLM agents. Uses Redis indexing and YAML frontmatter for agent-friendly data storage.

Ask HN: Improving as mid-level dev with forced use of LLMs

Discussion on developer growth strategies when LLM usage is mandated in organizations.

State of the art PBR maps generation

PATINA tool generates PBR texture maps using AI image models, converting aesthetically appealing outputs into usable assets for CGI workflows.

With Claude Managed Agents, Anthropic wants to run your AI agents for you

Anthropic announces managed agent service running Claude-based AI agents on their infrastructure.

Locally Uncensored – Local AI desktop app(chat,codeagent,image/videogen,nocloud)

Local AI desktop application supporting chat, code agent, and media generation without cloud dependency.

Context Engineering – LLM Memory and Retrieval for AI Agents

Stub post about memory and retrieval mechanisms for AI agents.

LLMs 'banchmark' where they write code controlling units in a 1v1 RTS

LLMs compete in RTS game by iterating on JavaScript code controlling units. Tests reasoning about movement and targeting.