Claude Code 2.5 adds sub-agent task delegation, persistent hierarchical memory, background hooks, custom slash commands, and Model Context Protocol (MCP) integration to terminal-based workflows. Released by Anthropic in 2025, Claude Code is an agentic CLI tool that lives directly in the developer's terminal, reads and writes files, executes commands, and orchestrates multi-step development tasks across an entire codebase. For web developers working with JavaScript, React, and Node.js, these features mean generating frontend components, backend routes, and test files from a single prompt, all without leaving the terminal. Modern JavaScript development carries specific friction: repetitive scaffolding, context-switching between frontend and backend, maintaining consistency across monorepos, and enforcing code quality standards. The 2.5 release targets each of these.…