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Short Stack #15Tue, Nov 3, 2026
01
Claude's API can now keep your agent's conversation on the server
Anthropic put message threads into public beta on Nov 2. Add the thread parameter and your first request sends the full conversation; after that you send only the new messages plus the previous response ID. Anthropic says median time to first token dropped about 35% for 500k to 1M-token requests in Claude Code, where it's on by default for most users. Token usage and rates don't change.
⏱ 10-MIN TRYTake your longest agent loop, add the message-threads-2026-08-12 beta header and the thread parameter, and log time to first token before and after.
Source: claude.com
02
OpenAI rebuilt its Git backend because Codex agents push so much code
OpenAI described Pando on Nov 2, a new Git backend that now serves its whole monorepo. It keeps the normal Git client and protocol, but lets pushes to different branches go through in parallel and reuses stored packfiles across fetches. OpenAI says median push latency fell nearly 5x. It was built with Codex in 10 weeks and isn't available outside OpenAI yet.
⏱ 10-MIN TRYOn your busiest repo, run git branch -r | wc -l and git count-objects -vH to see how many branches and how much history your agents are piling up.
Source: openai.com
03
Figma shaders now export at 4096px and carry into code layers
Figma's Nov 2 release notes make shaders generally available to all users. They now render and export at up to 4096px, and they come along when you use "build this with code" to turn a design into a code layer. Playing shaders in code layers needs Chrome 157 and rolls out this week.
⏱ 10-MIN TRYAdd a shader to a hero frame, export it at 4096px, then run "build this with code" and press Play on the code layer to check it matches.
Source: figma.com
04
Goldman Sachs took AI coding tools back from its traders and bankers
Bloomberg reported Nov 2, via Quartz, that Goldman's October guidance limits tools like Claude Code and GitHub's to engineers, after bankers and traders had used them for months. A spokesperson said the bank weighed productivity and risk management. In July, its CIO had praised non-engineers vibe coding.
⏱ 10-MIN TRYWrite a one-page rule for your team: who can run coding agents, on which repos, and who reviews what non-engineers ship.
Source: qz.com
05
The New York Times sued Brave, saying its Search API sells scraped news to AI companies
The Times and, in a separate suit, the New York Daily News, Chicago Tribune and Orlando Sentinel filed in Manhattan on Nov 2. They allege Brave scraped their sites, sold access through its Search API and helps users get past paywalls. The complaint names Anthropic, Perplexity, Mistral, xAI and Cohere as customers; none is a defendant. These are allegations so far.
⏱ 10-MIN TRYCheck whether any of your agents or RAG tools call the Brave Search API, and write down what you'd swap in if its terms or coverage changed.
Source: theverge.com
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