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cat anthropic.com/engineering.md
 [  Featured ## How we contain Claude across products As agents grow more capable, so does their potential blast radius. The engineering question is how to cap it. Here’s what we’ve learned building containment for claude.ai, Claude Code, and Cowork. ](https://anthropic.com/engineering/how-we-contain-claude) [  ### An update on recent Claude Code quality reports Apr 23, 2026 ](https://anthropic.com/engineering/april-23-postmortem) [  ### Scaling Managed Agents: Decoupling the brain from the hands Apr 08, 2026 ](https://anthropic.com/engineering/managed-agents) [  ### How we built Claude Code auto mode: a safer way to skip permissions Mar 25, 2026 ](https://anthropic.com/engineering/claude-code-auto-mode) [  ### Harness design for long-running application development Mar 24, 2026 ](https://anthropic.com/engineering/harness-design-long-running-apps) [  ### Eval awareness in Claude Opus 4.6’s BrowseComp performance Mar 06, 2026 ](https://anthropic.com/engineering/eval-awareness-browsecomp) [ ### Quantifying infrastructure noise in agentic coding evals Feb 05, 2026 ](https://anthropic.com/engineering/infrastructure-noise) [  ### Building a C compiler with a team of parallel Claudes Feb 05, 2026 ](https://anthropic.com/engineering/building-c-compiler) [  ### Designing AI-resistant technical evaluations Jan 21, 2026 ](https://anthropic.com/engineering/AI-resistant-technical-evaluations) [  ### Demystifying evals for AI agents Jan 09, 2026 ](https://anthropic.com/engineering/demystifying-evals-for-ai-agents) [  ### Effective harnesses for long-running agents Nov 26, 2025 ](https://anthropic.com/engineering/effective-harnesses-for-long-running-agents) [  ### Introducing advanced tool use on the Claude Developer Platform Nov 24, 2025 ](https://anthropic.com/engineering/advanced-tool-use) [  ### Code execution with MCP: Building more efficient agents Nov 04, 2025 ](https://anthropic.com/engineering/code-execution-with-mcp) [  ### Beyond permission prompts: making Claude Code more secure and autonomous Oct 20, 2025 ](https://anthropic.com/engineering/claude-code-sandboxing) [  ### Equipping agents for the real world with Agent Skills Oct 16, 2025 ](https://anthropic.com/engineering/equipping-agents-for-the-real-world-with-agent-skills) [  ### Effective context engineering for AI agents Sep 29, 2025 ](https://anthropic.com/engineering/effective-context-engineering-for-ai-agents) [  ### A postmortem of three recent issues Sep 17, 2025 ](https://anthropic.com/engineering/a-postmortem-of-three-recent-issues) [  ### Writing effective tools for agents — with agents Sep 11, 2025 ](https://anthropic.com/engineering/writing-tools-for-agents) [  ### Desktop Extensions: One-click MCP server installation for Claude Desktop Jun 26, 2025 ](https://anthropic.com/engineering/desktop-extensions) [  ### How we built our multi-agent research system Jun 13, 2025 ](https://anthropic.com/engineering/multi-agent-research-system) [  ### Claude Code: Best practices for agentic coding Apr 18, 2025 ](https://anthropic.com/engineering/claude-code-best-practices) [  ### The "think" tool: Enabling Claude to stop and think in complex tool use situations Mar 20, 2025 ](https://anthropic.com/engineering/claude-think-tool) [  ### Raising the bar on SWE-bench Verified with Claude 3.5 Sonnet Jan 06, 2025 ](https://anthropic.com/engineering/swe-bench-sonnet) [  ### Building effective agents Dec 19, 2024 ](https://anthropic.com/engineering/building-effective-agents) [  ### Introducing Contextual Retrieval Sep 19, 2024 ](https://anthropic.com/engineering/contextual-retrieval)
