Right, harness adds the tools and memory that make it actually work
CODE
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OpenHarness: Open-Source Agent Harness for AI Systems
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Lightweight agent harness for building AI agents! OpenHarness is an open-source agent harness that gives LLMs tools, memory, permissions, and coordination. Here's the concept. The model provides intelligence. But to be a working agent, it needs tools to interact with the world,
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Software and Prompt Used to Create This Diagram
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ps which software made this particular diagram? what was the prompt?
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Anthropic Reverts Claude Code Pricing Change After User Backlash
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It doesn't affect coding subscribers and they've already reverted the pricing page change, but are still running a "test" on 2% of new signups https://
simonwillison.net/2026/Apr/22/cl
aude-code-confusion/#they-reversed-it
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Claude Code Reverse-Engineered: Only 1.6% Is Actually AI Model
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Researchers reverse-engineered Claude Code. Only 1.6% is actually AI. The other 98.4% is infrastructure around the model. Permission gates, tool routing, context compaction, session recovery. The model just reasons. Everything else runs the show. The core loop is a plain
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Mockup to Working Code: Solving Design Handoff Problem
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Mockup to working code in one pipeline is actually a big deal for people who build things. Design handoff has been broken for years.
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Crucix Monitor: Open-Source AI Tool for Community
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Shoutout to @crucixmonitor for building this and making it 100% open-source for the community! Don't forger to drop a on to help boost its visibility.
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HuggingFace ML Intern CLI Tool on GitHub
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CLI: https://
github.com/huggingface/ml
-intern/tree/main
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@testingcatalog — 2026-04-22
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OPENAI : GPT-5.5 and a bunch of internal model names have been spotted on Codex recently, and this normally signals that OpenAI is preparing to release a new model. – oai-2.1
– arcanine
– glacier-alpha
– glacier-alpha-block-cy4
– glacier-alpha-block-cy3 Soon h/t