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6 articlesConnect to external tools with MCP
Configure MCP servers to extend your agent with external tools. Covers transport types, tool search for large tool sets, authentication, and error handling. The Model Context Protocol (MCP) is an open standard for connecting AI agents to external tools and data sources. With MCP, your agent can query databases, integrate with APIs like Slack and GitHub, and connect to other services without writing custom tool implementations. MCP servers can run as local processes, connect over HTTP, or execute directly within your SDK application. This page covers MCP configuration for the Agent SDK.
What's new
A weekly digest of notable Claude Code features, with code snippets, demos, and context on why they matter. The weekly dev digest highlights the features most likely to change how you work. Each entry includes runnable code, a short demo, and a link to the full docs. In-app browser on Desktop: Claude Code on desktop gets a built-in browser, so Claude can pull up docs, designs, or any other site. Also this week: /doctor is a full setup checkup that diagnoses issues and can fix them, with /checkup as its alias; auto mode blocks transcript tampering and asks before rm -rf on unresolved variables.
Week 27 · June 29 – July 3, 2026
Claude Sonnet 5 becomes the default model, Claude in Chrome reaches general availability, subagents run in the background by default, Claude Desktop arrives on Linux in beta, and /radio tunes into Claude FM. Sonnet 5 is the new default model for Pro, Team Standard, and Enterprise subscription seats: top-tier coding and tool use at Sonnet pricing, with a native 1M-token context window and adaptive thinking on by default. API pricing is promotional at $2/$10 per MTok through August 31. Requires v2.1.197 or later.
Week 28 · July 6–10, 2026
Browse external sites from the Desktop app's built-in browser, run a full setup checkup with /doctor, and pick up auto mode transcript protections and agent view upgrades. Desktop Claude Code now has a built-in browser: Claude can pull up docs, designs, or any other site, and read, click through, and interact with pages the same way it does with your local dev server previews. The browser is sandboxed and configurable: you choose whether browsing sessions persist, and safety classifiers review actions on external sites.
How Claude Code works
Understand the agentic loop, built-in tools, and how Claude Code interacts with your project. Claude Code is an agentic assistant that runs in your terminal. While it excels at coding, it can help with anything you can do from the command line: writing docs, running builds, searching files, researching topics, and more. When you give Claude a task, it works through three phases: gather context, take action, and verify results. These phases blend together. Claude uses tools throughout, whether searching files to understand your code, editing to make changes, or running commands to verify.
Claude Code changelog
Release notes for Claude Code, including new features, improvements, and bug fixes by version. This page is generated from the CHANGELOG.md on GitHub. Auto mode is now available without CLAUDE_CODE_ENABLE_AUTO_MODE opt-in on Bedrock, Vertex AI, and Foundry; disable via disableAutoMode in settings. Fixed the terminal freezing and keystrokes lagging while streaming responses containing very long lists, tables, paragraphs, or code blocks. Fixed remote managed settings from a non-interactive run being permanently recorded as consented without ever showing the security consent dialog.
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