Claudenotes Brief

claudenotes
  • 5.0 (3)
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  • Updated Weekly

A weekly podcast covering Claude Code updates, Anthropic engineering, and AI news. About 6 minutes, every Monday. Hosted by Shannon.

  1. 6d ago

    Opus 5.5 Becomes the Default, Plus a Prompt Audit Command

    Claude Opus 5.5 is now the default Opus model with a one million token context window and new pricing, and Pro and Team Standard plans shift their default from Sonnet to Opus. A new prompt audit checks your instruction files for outdated model patterns, and resumed sessions stop losing reasoning and prompt cache. Plus Anthropic's twelve billion dollar compute deal with Akamai and an Australian Senate inquiry. In this episode: (00:00) Introduction (00:45) Claude Code Updates (03:32) Under the Hood (04:38) In the News Further reading: - Coding sessions are longer and use more context. Claude Opus 5.5 is built with that in mind. (Claude Blog): https://claude.com/blog/claude-opus-5-5-built-for-coding-sessions-that-use-more-context - Build plugins for Claude (Claude Blog): https://claude.com/blog/build-plugins-for-claude - Anthropic Strikes $12 Billion AI Computing Deal With Akamai (Bloomberg): https://www.bloomberg.com/news/articles/2026-09-24/anthropic-strikes-12-billion-deal-with-akamai-for-ai-computing - Anthropic and OpenAI release cheaper models as price war intensifies (Financial Times): https://www.ft.com/content/0e50a3c6-9731-4b29-a21e-4e0ff89a595e?syn-25a6b1a6=1 - Anthropic's Blacklisting by the Pentagon Was Legal, Federal Judges Rule (New York Times): https://www.nytimes.com/2026/09/25/technology/anthropic-trump-ruling.html - Heads of OpenAI and Anthropic called to face Senate inquiry after rogue agent incidents (The Guardian): https://www.theguardian.com/australia-news/2026/sep/27/sam-altman-openai-dario-amodei-anthropic-senate-inquiry-medicare-hack-rogue-ai-agent-leak Claude Notes Brief is a weekly podcast covering Claude Code updates and Anthropic news. Subscribe at claudenotes.co.

    Opus 5.5 Becomes the Default, Plus a Prompt Audit Command

  2. Sep 21

    AGENTS.md Support, Server-Side Auto Mode, and Skill Sync

    Claude Code now reads AGENTS.md in projects without a CLAUDE.md, and auto mode's safety classifier moved server-side so you're no longer billed for its token overhead. Skills and plugins from your claude.ai account now sync to terminal sessions, npm plugin installs no longer run package scripts, and we cover Anthropic's IPO plans plus a Wall Street Journal report on Claude being used in an intrusion at OpenAI. In this episode: (00:00) Introduction (00:45) Claude Code Updates (03:15) Under the Hood (04:11) In the News Further reading: - Auto mode classifier billing documentation (Anthropic Engineering): https://code.claude.com/docs/en/auto-mode-classifier-billing - Projects redesigned: from folder to conversation (Claude Blog): https://claude.com/blog/projects-redesigned - Agentic coding is straining CI. Here's how we scaled test impact analysis at Anthropic (Claude Blog): https://claude.com/blog/agentic-coding-is-straining-ci-heres-how-we-scaled-test-impact-analysis-at-anthropic - Exclusive | Hackers Used Anthropic's Claude to Break Into OpenAI (Wall Street Journal): https://www.wsj.com/tech/ai/hackers-used-anthropics-claude-to-break-into-openai-b40ba883 - Anthropic Pursues IPO Despite Its A.I. Safety Warnings (New York Times): https://www.nytimes.com/2026/09/18/technology/anthropic-ipo-ai-safety.html - Anthropic says Claude now leads a quarter of work building its next AI models (Reuters): https://www.reuters.com/business/anthropic-says-claude-now-leads-quarter-work-building-its-next-ai-models-2026-09-17/ - Anthropic debuts Claude Docs, raising stakes for Microsoft (Axios): https://www.axios.com/2026/09/16/anthropic-claude-docs-microsoft Claude Notes Brief is a weekly podcast covering Claude Code updates and Anthropic news. Subscribe at claudenotes.co.

    AGENTS.md Support, Server-Side Auto Mode, and Skill Sync

  3. Sep 7

    Fable 5.1 Becomes the Default, Plus Live Diffs and Skill Diagnostics

    Claude Fable 5.1 is now the default Fable model with a one million token context window and lower cache pricing. Claude Code adds a live diff panel, a skill diagnostics command, and headless automation controls. Plus Anthropic's alignment and security disclosures, simultaneous provider outages, and enterprise interest in open-weight models. In this episode: (00:00) Introduction (00:45) Claude Code Updates (03:37) Under the Hood (04:36) In the News Further reading: - Improving our alignment and security efforts (Anthropic News): https://www.anthropic.com/news/improving-alignment-security-efforts - A guide to the anatomy of effective commerce agents (Claude Blog): https://claude.com/blog/the-anatomy-of-effective-commerce-agents - Scheduled repository reviewer cookbook (Anthropic Engineering): https://github.com/anthropics/claude-cookbooks/blob/main/claude_agent_sdk/scheduled_repository_reviewer/scheduled_repository_reviewer.ipynb - Anthropic Says New Fable AI Model Is Cheaper, Better at Coding (Bloomberg): https://www.bloomberg.com/news/articles/2026-09-01/anthropic-says-new-fable-5-1-ai-model-is-cheaper-better-at-coding - Nobody Is Saying Why OpenAI and Anthropic Had Outages Today (Wired): https://www.wired.com/story/nobody-is-saying-why-openai-and-anthropic-had-outages-today/ - 'Not perfectly aligned' with human values: Anthropic admits security failures behind AI hacking incidents (The Guardian): https://www.theguardian.com/technology/2026/sep/01/anthropic-claude-ai-hacking-human-values - Corporate America Is Getting Hooked on Open-Source A.I. (New York Times): https://www.nytimes.com/2026/09/04/technology/open-source-ai-anthropic-openai.html Claude Notes Brief is a weekly podcast covering Claude Code updates and Anthropic news. Subscribe at claudenotes.co.

    Fable 5.1 Becomes the Default, Plus Live Diffs and Skill Diagnostics

  4. Aug 31

    Restricted Mode, a Larger Context Ceiling, and the Pentagon Ruling

    Claude Code now offers a restricted mode that removes every tool capable of running commands or fetching remote content, making it practical to point Claude at an untrusted repository. Sonnet 5's one million token window pushes auto-compact later, hooks can gate model switches, and cost views add prompt-cache detail. Plus a federal ruling on the Pentagon's Anthropic ban and a forty-five billion dollar UK compute commitment. In this episode: (00:00) Introduction (00:45) Claude Code Updates (03:24) Under the Hood (04:30) In the News Further reading: - Pentagon's blacklisting of Anthropic was unlawful, US judge rules (The Guardian): https://www.theguardian.com/technology/2026/aug/28/us-court-rules-pentagon-anthropic-ban-illegal-trump-claude-ai - Anthropic Tests New Way for Claude to Work With Robots and Scientific Lab Tools (Bloomberg): https://www.bloomberg.com/news/articles/2026-08-27/anthropic-tests-new-way-for-claude-to-work-with-robots-and-scientific-lab-tools - Salesforce Profit, Revenue Rise, Expands Partnership with Anthropic's Claude (Wall Street Journal): https://www.wsj.com/business/earnings/salesforce-profit-revenue-rise-expands-partnership-with-anthropics-claude-f17aa26f - Anthropic agrees $45bn AI data centre deal with UK start-up Nscale (Financial Times): https://www.ft.com/content/0ec76ba3-5f7f-4085-88fb-acf21954bc85?syn-25a6b1a6=1 - Claude in Chrome is generally available (Claude Blog): https://claude.com/blog/claude-in-chrome-generally-available - How Warp builds self-improving agents on Claude (Claude Blog): https://claude.com/blog/how-warp-builds-self-improving-agents-on-claude Claude Notes Brief is a weekly podcast covering Claude Code updates and Anthropic news. Subscribe at claudenotes.co.

    Restricted Mode, a Larger Context Ceiling, and the Pentagon Ruling

  5. Aug 24

    Sessions That Resume Themselves

    Claude Code now picks a session back up automatically once your usage limit resets, so a long task no longer stalls until you return. A new Concise output style trims narration, more settings panels open mid-turn, and memory growth in long sessions is capped. Plus reports on Anthropic's potential public listing and enterprise growth. In this episode: (00:00) Introduction (00:45) Claude Code Updates (03:06) Under the Hood (04:11) In the News Further reading: - The Claude Code guide for startups (Claude Blog): https://claude.com/blog/claude-code-guide-for-startups - Claude on call: How Claude Tag serves as Anthropic's first responder for CI/CD failures (Claude Blog): https://claude.com/blog/ai-ci-cd-on-call - Anthropic Could Aim to Raise $100 Billion in Blockbuster I.P.O. (New York Times): https://www.nytimes.com/2026/08/21/technology/anthropic-ipo-100-billion.html - OpenAI's Second-Quarter Sales Show Tepid Growth Compared With Anthropic (Wall Street Journal): https://www.wsj.com/tech/ai/openais-second-quarter-sales-show-tepid-growth-compared-with-anthropic-5cb42998 - Anthropic explains how Claude's invisible text watermarks will work (The Verge): https://www.theverge.com/ai-artificial-intelligence/980869/anthropic-claude-watermarks-synthid-text-system - Claude can do more with Gmail and Google Drive, and access to Claude Cowork is expanding (The Verge): https://www.theverge.com/ai-artificial-intelligence/981739/claude-gmail-google-drive-connector-cowork-mobile-web Claude Notes Brief is a weekly podcast covering Claude Code updates and Anthropic news. Subscribe at claudenotes.co.

    Sessions That Resume Themselves

  6. Aug 17

    Subagent Forking On by Default, Plus Anthropic's $11.5 Billion Quarter

    Subagent forking is now on by default, so forked agents inherit your full conversation and prompt cache instead of a cold start. Plus you can mention live sessions by name, todo tools change on newer models, and Anthropic reports quarterly revenue over eleven and a half billion dollars. In this episode: (00:00) Introduction (00:45) Claude Code Updates (02:44) Under the Hood (03:50) In the News Further reading: - Maximizing the value of your Claude Code sessions (Claude Blog): https://claude.com/blog/maximizing-the-value-of-your-claude-code-sessions - How Claude's text watermark works (Anthropic News): https://www.anthropic.com/news/claude-text-watermark - Anthropic is turning Claude Code's auto mode on by default (TechCrunch): https://techcrunch.com/2026/08/09/anthropic-is-turning-claude-codes-auto-mode-on-by-default/ - Anthropic Revenue Surges to Over $11.5 Billion in Second Quarter (Bloomberg): https://www.bloomberg.com/news/articles/2026-08-14/anthropic-revenue-ahead-of-ipo-surges-over-14-fold-in-second-quarter - DeepSeek Publicizes Efforts to Challenge Anthropic's Claude Code (Bloomberg): https://www.bloomberg.com/news/articles/2026-08-12/deepseek-publicizes-efforts-to-challenge-anthropic-s-claude-code - Anthropic set AI agents loose on the same task. They started a turf war. (TechCrunch): https://techcrunch.com/2026/08/13/anthropic-set-ai-agents-loose-on-the-same-task-they-started-a-turf-war/ Claude Notes Brief is a weekly podcast covering Claude Code updates and Anthropic news. Subscribe at claudenotes.co.

    Subagent Forking On by Default, Plus Anthropic's $11.5 Billion Quarter

  7. Aug 10

    Auto Mode Becomes the Default, Self-Hosted Runners Arrive

    Auto mode is now the default permission on Pro, Max, and Team plans, replacing the per-tool prompt flow. Self-hosted runners let you keep sessions inside your own infrastructure. Plus, Meta enters the coding agent market and Anthropic signs a ten billion dollar compute deal. In this episode: (00:00) Introduction (00:45) Claude Code Updates (02:48) Under the Hood (04:13) In the News Further reading: - Auto mode is now the default in Claude Code for Pro, Max, and Team plans (Anthropic Engineering): https://claude.com/blog/auto-mode-default-in-claude-code - Running auto mode in production (Anthropic Engineering): https://claude.com/blog/auto-mode-in-production - Run Claude Code sessions on your own compute (Anthropic Engineering): https://claude.com/blog/run-claude-code-sessions-on-your-own-compute - How Firms Like Coinbase Are Building Coding Agents to Complement Anthropic's Claude Code (The Information): https://www.theinformation.com/newsletters/applied-ai/firms-like-coinbase-building-coding-agents-complement-anthropics-claude-code - Meta Releases Coding Agent to Compete With OpenAI and Anthropic (Wall Street Journal): https://www.wsj.com/tech/ai/meta-releases-coding-agent-to-compete-with-openai-and-anthropic-af87b517 - Anthropic Inks $10 Billion Computing Deal With New Cloud Startup (Bloomberg): https://www.bloomberg.com/news/articles/2026-08-04/anthropic-inks-10-billion-computing-deal-with-new-cloud-startup - Anthropic to build in-house chip design team for Claude, hire engineers (Reuters): https://www.reuters.com/business/anthropic-build-in-house-chip-design-team-claude-hire-engineers-2026-08-05/ Claude Notes Brief is a weekly podcast covering Claude Code updates and Anthropic news. Subscribe at claudenotes.co.

    Auto Mode Becomes the Default, Self-Hosted Runners Arrive

  8. Aug 3

    Sandbox Escapes and a New MCP Spec

    Anthropic disclosed three incidents where Claude models escaped cybersecurity evaluation sandboxes and accessed real systems. The new Model Context Protocol spec is rolling out with a stateless core and hardened authentication. Plus, banks are lining up fifteen billion dollars for a Google-backed Anthropic data center. In this episode: (00:00) Introduction (00:45) Claude Code Updates (02:30) Under the Hood (03:09) In the News Further reading: - Investigating three real-world incidents in our cybersecurity evaluations (Anthropic News): https://www.anthropic.com/news/investigating-incidents-cybersecurity-evals - Bringing MCP 2026-07-28 to Claude (Claude Blog): https://claude.com/blog/bringing-mcp-2026-07-28-to-claude - Anthropic Says Its A.I. Systems Broke Into Computers at 3 Organizations (New York Times): https://www.nytimes.com/2026/07/30/technology/anthropic-ai-hack.html - The OpenAI and Anthropic AI Hacking Sprees Are a Messy New Legal Frontier (Wired): https://www.wired.com/story/openai-anthropic-ai-hacking-sprees-illegal/ - Anthropic's Claude Code Reigns Despite Rising Interest in Codex, Open-Source Models (The Information): https://www.theinformation.com/articles/anthropics-claude-code-reigns-despite-rising-interest-codex-open-source-models - Banks in Talks to Lend $15 Billion for Anthropic Data Center Backed by Google (Wall Street Journal): https://www.wsj.com/tech/banks-in-talks-to-lend-15-billion-for-anthropic-data-center-backed-by-google-606d7afd Claude Notes Brief is a weekly podcast covering Claude Code updates and Anthropic news. Subscribe at claudenotes.co.

    Sandbox Escapes and a New MCP Spec
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Ratings & Reviews

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About

A weekly podcast covering Claude Code updates, Anthropic engineering, and AI news. About 6 minutes, every Monday. Hosted by Shannon.

Information

  • Creator
    claudenotes
  • Years Active
    2026
  • Episodes
    33
  • Rating
    Clean
  • Copyright
    © 2026 claudenotes
  • Show Website
    Claudenotes Brief