# Newsletter September 21 2026: updates on the tools we follow | Apps

[Skip to content](#lm-inhoud)Network/[NL](/en/nieuwsbrief-2026-09-21)EN[Hubhub.llmnet.nlCompare models on task, language, cost and license.](https://hub.llmnet.nl/en/)[Communitycommunity.llmnet.nlPrompt techniques, patterns and system prompts.](https://community.llmnet.nl/en/)[APIapi.llmnet.nlLLMs in production: rate limits, routing, structured output.](https://api.llmnet.nl/en/)[Consultancyconsultancy.llmnet.nlRolling out AI in an organization, pilot to production.](https://consultancy.llmnet.nl/en/)[Newsnieuws.llmnet.nlAI developments, explained for the Netherlands.](https://nieuws.llmnet.nl/en/)[Benchmarkbenchmark.llmnet.nlMeasure AI quality yourself, on your own tasks.](https://benchmark.llmnet.nl/en/)[Careersvacatures.llmnet.nlAI roles, salaries and career paths in the Netherlands.](https://vacatures.llmnet.nl/en/)[Learnleren.llmnet.nlAI concepts in plain language, beginner to builder.](https://leren.llmnet.nl/en/)[Guidegids.llmnet.nlRun AI privately on your own Mac, PC, NAS or home server.](https://gids.llmnet.nl/en/)[Directorydirectory.llmnet.nlMapping the AI ecosystem: tools, models, companies.](https://directory.llmnet.nl/en/)[Radarradar.llmnet.nlSignals from X, research and communities for indie developers.](https://radar.llmnet.nl/en/)[Appsapps.llmnet.nlReviews of AI apps and open-source repos, with tips for builders.](https://apps.llmnet.nl/en/)[Trendingtrending.llmnet.nlDaily AI trends from X, explained in Dutch.](https://trending.llmnet.nl/en/)[llmnet.nl — main site](https://llmnet.nl/en/)[](https://x.com/intent/post?url=https%3A%2F%2Fapps.llmnet.nl%2Fen%2Fnieuwsbrief-2026-09-21&text=Newsletter%20September%2021%202026%3A%20updates%20on%20the%20tools%20we%20follow)[](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fapps.llmnet.nl%2Fen%2Fnieuwsbrief-2026-09-21)[](https://www.reddit.com/submit?url=https%3A%2F%2Fapps.llmnet.nl%2Fen%2Fnieuwsbrief-2026-09-21&title=Newsletter%20September%2021%202026%3A%20updates%20on%20the%20tools%20we%20follow)[](#)
 
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# Newsletter September 21 2026

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

 
## Claude Code & agents

 
 
- [How to Build AI Agents with Claude Code + UiPath for Coding Agents](https://www.youtube.com/watch?v=TSLQyhYUSLE) · YouTube · 2026-09-18A YouTube tutorial on building AI agents with Claude Code and UiPath, useful for indie developers who want to integrate automation.
 
- [[BUG] [Claude in Chrome] All tools blocked on reddit.com (and redd.it) with "not allowed due to safety restrictions" since 2026-09-18 — worked through 2026-09-17](https://github.com/anthropics/claude-code/issues/95326) · GitHub · 2026-09-18A GitHub bug report that Claude in Chrome blocks all tools on reddit.com due to safety restrictions, relevant because indie developers can lose functionality.
 
- [Feature request: built-in, cross-platform way to list running Claude Code sessions and their state](https://github.com/anthropics/claude-code/issues/94620) · GitHub · 2026-09-16A GitHub feature request for a built‑in, cross‑platform way to list active Claude Code sessions and their state, helping indie developers improve session management.
 
 
## Repos, releases & updates

 
 
- [Claude Agent Failed to launch](https://github.com/zed-industries/zed/issues/64216) · GitHub · 2026-09-15A GitHub issue reporting that Claude Agent fails to launch, relevant for indie developers who depend on this agent.
 
- [docs: adopt shared multi-agent development protocol](https://github.com/hillstreet-ph/open-model/pull/9) · GitHub · 2026-09-16GitHub documentation that adopts a shared multi‑agent development protocol, providing indie developers a standard for collaboration between agents.
 
- [@grok Whats the timeline of LLM events leading up to all majors labs saying they need to slow down. Inlcude news, model releases, and govern](https://x.com/AustinBakanec/status/2099524396302184654) · X · 2026-09-14An X post to @grok asking for a timeline of LLM events leading up to labs calling for slowdown, relevant for indie developers who want to follow market developments.
 
 
## Previous editions

 
 
- [20 september 2026](/en/nieuwsbrief-2026-09-20)
 
- [19 september 2026](/en/nieuwsbrief-2026-09-19)
 
- [18 september 2026](/en/nieuwsbrief-2026-09-18)
 
- [17 september 2026](/en/nieuwsbrief-2026-09-17)
 
- [16 september 2026](/en/nieuwsbrief-2026-09-16)
 
- [15 september 2026](/en/nieuwsbrief-2026-09-15)
 
- [14 september 2026](/en/nieuwsbrief-2026-09-14)
 
- [13 september 2026](/en/nieuwsbrief-2026-09-13)
 
- [12 september 2026](/en/nieuwsbrief-2026-09-12)
 
- [11 september 2026](/en/nieuwsbrief-2026-09-11)
 
- [10 september 2026](/en/nieuwsbrief-2026-09-10)
 
- [9 september 2026](/en/nieuwsbrief-2026-09-09)
 
- [8 september 2026](/en/nieuwsbrief-2026-09-08)
 
- [7 september 2026](/en/nieuwsbrief-2026-09-07)