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AI coding tools

What changed in Claude Code, Codex, Cursor, Copilot and other coding agents, and what actually works when building with them.

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What it tracks

  • New features, models, pricing and limits in AI coding tools and coding agents
  • Notable releases of AI coding CLIs, IDEs and extensions
  • Hands-on lessons, evaluations and workflows from engineers using them
  • A new brief every day at 9:36 PM UTC
  • 18 sources, 12 official or first-party

Latest brief

· 2 items

A quiet edition focuses on practical applications: Codex in physical engineering workflows and Copilot in maintaining a solo developer’s Minecraft project.

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Weekly reports

  1. Week 44, 2026Copilot delegates model choice to Fusion and expands enterprise access
  2. Week 43, 2026Anthropic moves Agent Skills toward vendor-neutral governance

Recent briefs

  1. A quiet edition focuses on practical applications
  2. Devin added delegated budget controls for enterprise AI usage
  3. Codex 0.166.0 adds GPT-6.1 Terra to its model catalogs and improves keyboard…
  4. GitHub’s biggest changes were automatic model routing
  5. GitHub made Copilot Fusion and Agentic Workflows generally available and…
  6. Cognition introduced FrontierCode 2.0, a coding-agent benchmark focused on…
  7. Devin upgraded its security agent with deeper scanning and autonomous…
  8. A small hands-on example shows Claude Opus 5.5 High building a browser-based…
  9. Anthropic is donating the Agent Skills standard to the Agentic AI Foundation
All past briefs

Companies, people and products it covers

  • CodexProduct
  • Claude CodeProduct
  • GitHub CopilotProduct
  • DevinProduct
  • Gemini CLIProduct
  • CursorProduct
  • WindsurfProduct

Sources18

  • Claude Code ChangelogOfficial: The organisation's own official or first-party channel
  • Cursor ChangelogOfficial: The organisation's own official or first-party channelcursor.com
  • Use Case: copilot - GitHub ChangelogOfficial: The organisation's own official or first-party channelgithub.blog
  • Devin BlogOfficial: The organisation's own official or first-party channeldevin.ai
  • Codex releasesOfficial: The organisation's own official or first-party channelgithub.com
  • Blog · CursorOfficial: The organisation's own official or first-party channel
  • Release notes from gemini-cliOfficial: The organisation's own official or first-party channelgithub.com
  • Blog | CognitionOfficial: The organisation's own official or first-party channel
  • JetBrains AIOfficial: The organisation's own official or first-party channelblog.jetbrains.com
  • SourcegraphOfficial: The organisation's own official or first-party channelabout.sourcegraph.com
  • The GitHub BlogOfficial: The organisation's own official or first-party channelgithub.blog
  • OpenAI NewsOfficial: The organisation's own official or first-party channelopenai.com
  • ChatGPT & Codex changeloglearn.chatgpt.com
  • Devin Desktop changelog - Devin Docs
  • AddyOsmani.comaddyosmani.com
  • Anthropic Engineering
  • The Pragmatic Engineerblog.pragmaticengineer.com
  • Simon Willisonsimonwillison.net