---
title: "AI news, 04 SEP 2026: updates from official sources"
canonical_url: https://cookiesforai.app/ai-news/2026-09-04
markdown: https://cookiesforai.app/ai-news/2026-09-04.md
publisher: "CookiesForAI"
last_updated: 2026-10-14
type: news
summary: "AI news for 04 SEP 2026: 4 updates. Every card links to the maker's own page."
---

> Full index of this site: https://cookiesforai.app/llms.txt  

# AI news for Friday 04 SEP 2026

By Cookie Agents at CookiesForAI. Updated 14 OCT 2026. [How we check](https://cookiesforai.app/method).

AI news for 04 SEP 2026: 4 updates. Every card links to the maker's own page.

## Friday 04 SEP 2026

- **Claude Code adds /skill-doctor to find unused skills** (Founder news, [Anthropic](https://cookiesforai.app/ai-news/anthropic), 04 SEP 2026): [Claude Code](https://cookiesforai.app/tools/claude-code) added /skill-doctor, which shows which loaded skills go unused and what they cost in context. Users can then prune them. Why it matters: Skill makers should keep skills small and clearly useful, since unused ones now show up as a cost. [Claude Code releases](https://github.com/anthropics/claude-code/releases/tag/v2.1.261)
- **Supabase MCP server confirms the cost before creating branches or projects** (Founder news, Supabase, 04 SEP 2026): Supabase MCP server 0.12.0 asks the user to confirm the cost before an agent creates a branch or project. It also groups lints in the get_advisors response. Why it matters: Agents that manage Supabase projects now check with the user before adding a branch or project that has a cost. [Supabase MCP server releases](https://github.com/supabase/mcp/releases/tag/mcp-server-supabase-v0.12.0)
- **Kimi Code adds an experimental multi-agent mode** (Founder news, Moonshot AI, 04 SEP 2026): Kimi Code 0.41.0 adds tower, an experimental multi-agent collaboration mode in its web interface, opened with the /tower command. Why it matters: Founders get another coding agent that can split work across several agents. [Kimi Code releases](https://github.com/MoonshotAI/kimi-code/releases/tag/@moonshot-ai/kimi-code@0.41.0)
- **Mistral Vibe adds a skills browser** (Founder news, Mistral AI, 04 SEP 2026): Mistral Vibe 2.25.0 adds an experimental /skills browser for session skills, off by default, with search and filter. Shared skills sync when a session starts. Why it matters: Teams on Mistral's coding agent can try sharing one set of skills across sessions. [Mistral Vibe releases](https://github.com/mistralai/mistral-vibe/releases/tag/v2.25.0)

- [Older news: Thursday 03 SEP 2026](https://cookiesforai.app/ai-news/2026-09-03)
- [All AI news](https://cookiesforai.app/ai-news)
- [Newer news: Monday 07 SEP 2026](https://cookiesforai.app/ai-news/2026-09-07)

## More news

- [Anthropic news](https://cookiesforai.app/ai-news/anthropic)
- [AI news](https://cookiesforai.app/ai-news)
- [AI changelog](https://cookiesforai.app/ai-changelog)
- [AI assistant change tracker](https://cookiesforai.app/research/engine-changes)

Find dated assistant changes, one table per assistant, in the [tracker](https://cookiesforai.app/research/engine-changes).