Newsletter September 18, 2026
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Claude Code & agents
- Anthropic says Claude now leads a quarter of work building its next AI models
- Claude Code from Source
- Michael Burry slams OpenAI, Anthropic for 'self-serving' calls to slow AI
- Hackers Used Anthropic's Claude to Break into OpenAI
Cloudflare OS & self-hosted
- Show HN: Friday – Self-hosted persistent memory for AI coding agents (MCP)
- Story 4.19: Architectural Spike — Evaluate Cloudflare Browser Services vs. GitHub Actions CI for Playwright UI & Integration Testing
- buried under all the "operating system for your company" lingo, cloudflare os actually holds a massively underhyped (imo) difference from ot
- Built a self-hosted homelab on an old laptop — sanity checking my setup (security, Docker, media stack)
Agent tooling & MCP
- Claude skill for building MCP apps using Mcpfy SDK
- A lot of good work is happening in AI-enabled security testing right now. Agents, scanners, MCP servers, skills. People are building them fa
- DeepSeek V4.1 Flash + Muse Spark 1.3 are FREE on Cline Desktop 😳 Cline just launched a native desktop app with useful agent features what yo
Models & pricing
- feat(backend): add Unbiased Pareto to LLM catalog
- Deploy an LLM as an agent instead of a prompt, and watch your token count jump as much as 10-100x. Nothing about the model changes. Nothing
- feat(llm-catalog): add InclusionAI Ling 3.0 Flash VL
- How to Write with an LLM
Skills & plugins
- feat: WordPress-style Plugin Architecture for SaaS
- Consolidate technical learning platform and add SkillForge AI Arena
- feat: add AI Agent Skills & Plugins section (bootgs/skills)
Repos, releases & updates
- Show HN: Open-source AI teammates with their own computer
- feat(lms): education boards (CBSE, ICSE, MP/State Board) and targeted assignment allocation
- ApowerB – open-source runtime for AI agents (Apache 2.0)
- Slack: status indicator silently broken with slack-sdk >= 3.44 (agents.sessions.setStatus rejects free-text and empty status)
Funding & market
- AI CODING STARTUP FACTORY RAISES $200M AT $5B VALUATION Factory has raised $200 million at a $5 billion valuation, more than tripling its va
- MANUS RETURNS TO FUNDING MARKET WITH $500M ROUND AT $4B VALUATION AFTER META DEAL UNWIND Manus is nearing a $500M financing that would value
- AI AGENT STARTUP INSTINCT IN TALKS TO RAISE $1B AT $10B VALUATION Instinct is discussing a new $1 billion funding round at a roughly $10 bil
- AI startup Factory just raised $200M at a $5B valuation. Factory says large enterprises are moving from individual coding agents toward syst