# Newsletter September 18, 2026: updates on the tools we follow | Apps

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# Newsletter September 18, 2026

 Daily update on the software we follow here · automatically compiled, manually corrected
 How this is generated. This page is automatically populated daily from public sources (X, Hacker News, GitHub, YouTube). The headlines come from the source, the English sentence below it is machine-generated. Click through to the source before basing anything on it.

 
## Claude Code & agents

 
 
- [Anthropic says Claude now leads a quarter of work building its next AI models](https://www.businesstimes.com.sg/companies-markets/telcos-media-tech/anthropic-says-claude-now-leads-quarter-work-building-its-next-ai-models) · Hacker News · 2026-09-18
 
- [Claude Code from Source](https://claude-code-from-source.com/) · Hacker News · 2026-09-18
 
- [Michael Burry slams OpenAI, Anthropic for 'self-serving' calls to slow AI](https://nypost.com/2026/09/14/business/big-short-trader-michael-burry-slams-openai-anthropic-for-self-serving-calls-to-slow-ai/) · Hacker News · 2026-09-17
 
- [Hackers Used Anthropic's Claude to Break into OpenAI](https://www.wsj.com/tech/ai/hackers-used-anthropics-claude-to-break-into-openai-b40ba883) · Hacker News · 2026-09-18
 
 
## Cloudflare OS & self-hosted

 
 
- [Show HN: Friday – Self-hosted persistent memory for AI coding agents (MCP)](https://github.com/itskie/friday) · Hacker News · 2026-09-16
 
- [Story 4.19: Architectural Spike — Evaluate Cloudflare Browser Services vs. GitHub Actions CI for Playwright UI & Integration Testing](https://github.com/jacobmiller22/chrishop/issues/206) · GitHub · 2026-09-12
 
- [buried under all the "operating system for your company" lingo, cloudflare os actually holds a massively underhyped (imo) difference from ot](https://x.com/thomasgauvin/status/2099981140434080173) · X · 2026-09-15
 
- [Built a self-hosted homelab on an old laptop — sanity checking my setup (security, Docker, media stack)](https://www.reddit.com/r/homelab/comments/1wg1u93/built_a_selfhosted_homelab_on_an_old_laptop/) · Reddit · 2026-09-14
 
 
## Agent tooling & MCP

 
 
- [Claude skill for building MCP apps using Mcpfy SDK](https://www.reddit.com/r/SideProject/comments/1wilyiv/claude_skill_for_building_mcp_apps_using_mcpfy_sdk/) · Reddit · 2026-09-17
 
- [A lot of good work is happening in AI-enabled security testing right now. Agents, scanners, MCP servers, skills. People are building them fa](https://x.com/joevest/status/2100564342131269971) · X · 2026-09-17
 
- [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](https://x.com/k2sbhai/status/2099560073718874436) · X · 2026-09-14
 
 
## Models & pricing

 
 
- [feat(backend): add Unbiased Pareto to LLM catalog](https://github.com/Significant-Gravitas/AutoGPT/pull/14697) · GitHub · 2026-09-18
 
- [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](https://x.com/QumulusAI/status/2100571022751674449) · X · 2026-09-17
 
- [feat(llm-catalog): add InclusionAI Ling 3.0 Flash VL](https://github.com/Significant-Gravitas/AutoGPT/pull/14683) · GitHub · 2026-09-17
 
- [How to Write with an LLM](https://sockpuppet.org/blog/2026/09/17/how-to-write-with-an-llm/) · Hacker News · 2026-09-17
 
 
## Skills & plugins

 
 
- [feat: WordPress-style Plugin Architecture for SaaS](https://github.com/NavaSanganakah-Multiventures/school-management/pull/37) · GitHub · 2026-09-17
 
- [Consolidate technical learning platform and add SkillForge AI Arena](https://github.com/rrahul0904/leetcode-platform/pull/31) · GitHub · 2026-09-18
 
- [feat: add AI Agent Skills & Plugins section (bootgs/skills)](https://github.com/oshliaer/google-apps-script-awesome-list/pull/209) · GitHub · 2026-09-13
 
 
## Repos, releases & updates

 
 
- [Show HN: Open-source AI teammates with their own computer](https://runerrand.dev/) · Hacker News · 2026-09-17
 
- [feat(lms): education boards (CBSE, ICSE, MP/State Board) and targeted assignment allocation](https://github.com/NavaSanganakah-Multiventures/school-management/pull/49) · GitHub · 2026-09-18
 
- [ApowerB – open-source runtime for AI agents (Apache 2.0)](https://github.com/apowerb/apowerb) · Hacker News · 2026-09-17
 
- [Slack: status indicator silently broken with slack-sdk >= 3.44 (agents.sessions.setStatus rejects free-text and empty status)](https://github.com/NousResearch/hermes-agent/issues/110374) · GitHub · 2026-09-13
 
 
## 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](https://x.com/IPONewsroom_/status/2099898994092888401) · X · 2026-09-15
 
- [MANUS RETURNS TO FUNDING MARKET WITH $500M ROUND AT $4B VALUATION AFTER META DEAL UNWIND Manus is nearing a $500M financing that would value](https://x.com/IPONewsroom_/status/2100528479943237735) · X · 2026-09-17
 
- [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](https://x.com/IPONewsroom_/status/2100152925201043690) · X · 2026-09-16
 
- [AI startup Factory just raised $200M at a $5B valuation. Factory says large enterprises are moving from individual coding agents toward syst](https://x.com/bennydoda01/status/2100053408376058008) · X · 2026-09-16
 
 
## Previous editions

 
 
- [September 17, 2026](/en/nieuwsbrief-2026-09-17)
 
- [September 16, 2026](/en/nieuwsbrief-2026-09-16)
 
- [September 15, 2026](/en/nieuwsbrief-2026-09-15)
 
- [September 14, 2026](/en/nieuwsbrief-2026-09-14)
 
- [September 13, 2026](/en/nieuwsbrief-2026-09-13)
 
- [September 12, 2026](/en/nieuwsbrief-2026-09-12)
 
- [September 11, 2026](/en/nieuwsbrief-2026-09-11)
 
- [September 10, 2026](/en/nieuwsbrief-2026-09-10)
 
- [September 9, 2026](/en/nieuwsbrief-2026-09-09)
 
- [September 8, 2026](/en/nieuwsbrief-2026-09-08)
 
- [September 7, 2026](/en/nieuwsbrief-2026-09-07)
 
- [September 6, 2026](/en/nieuwsbrief-2026-09-06)
 
- [September 5, 2026](/en/nieuwsbrief-2026-09-05)
 
- [September 4, 2026](/en/nieuwsbrief-2026-09-04)