Anthropic Engineering Blog
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Latest engineering posts from Anthropic
Introducing advanced tool use on the Claude Developer Platform
24 Nov 2025
Introducing advanced tool use on the Claude Developer Platform
24 Nov 2025
Introducing advanced tool use on the Claude Developer Platform
Code execution with MCP: Building more efficient agents
4 Nov 2025
Code execution with MCP: Building more efficient agents
4 Nov 2025
Code execution with MCP: Building more efficient agents
Beyond permission prompts: making Claude Code more secure and autonomous
20 Oct 2025
Beyond permission prompts: making Claude Code more secure and autonomous
Beyond permission prompts: making Claude Code more secure and autonomous
20 Oct 2025
Equipping agents for the real world with Agent Skills
16 Oct 2025
Equipping agents for the real world with Agent Skills
16 Oct 2025
Equipping agents for the real world with Agent Skills
Effective context engineering for AI agents
29 Sep 2025
Building agents with the Claude Agent SDK
29 Sep 2025
Effective context engineering for AI agents
29 Sep 2025
Effective context engineering for AI agents
Building agents with the Claude Agent SDK
29 Sep 2025
Building agents with the Claude Agent SDK
A postmortem of three recent issues
17 Sep 2025
A postmortem of three recent issues
17 Sep 2025
A postmortem of three recent issues
Writing effective tools for agents — with agents
11 Sep 2025
Writing effective tools for agents — with agents
11 Sep 2025
Writing effective tools for agents — with agents
Desktop Extensions: One-click MCP server installation for Claude Desktop
26 Jun 2025
Desktop Extensions: One-click MCP server installation for Claude Desktop
Desktop Extensions: One-click MCP server installation for Claude Desktop
26 Jun 2025
How we built our multi-agent research system
13 Jun 2025
How we built our multi-agent research system
How we built our multi-agent research system
13 Jun 2025
Claude Code: Best practices for agentic coding
18 Apr 2025
Claude Code: Best practices for agentic coding
18 Apr 2025
Claude Code: Best practices for agentic coding
The "think" tool: Enabling Claude to stop and think in complex tool use situations
20 Mar 2025
The "think" tool: Enabling Claude to stop and think in complex tool use situations
The "think" tool: Enabling Claude to stop and think in complex tool use situations
20 Mar 2025
Raising the bar on SWE-bench Verified with Claude 3.5 Sonnet
6 Jan 2025
Raising the bar on SWE-bench Verified with Claude 3.5 Sonnet
Raising the bar on SWE-bench Verified with Claude 3.5 Sonnet
6 Jan 2025
Building effective agents
19 Dec 2024
Building effective agents
Building effective agents
19 Dec 2024
Introducing Contextual Retrieval
19 Sep 2024
Introducing Contextual Retrieval
Introducing Contextual Retrieval
19 Sep 2024