How should I handle complex tasks in Claude Code?

Break them down. Have it write a plan detailing the files it will touch, the order of operations, and what it will not touch. Execute one slice at a time and commit after each step.

What are CLAUDE.md files used for?

They provide persistent context and memory. You can store project rules, architectural decisions, and roadmaps in them. Users also add them to specific directories like auth or billing to prevent mistakes.

How can I improve code quality and catch errors?

Have Claude review its own work, or use a second model like Codex via MCP to vet your plans before executing them. You can also add workflow rules in CLAUDE.md to enforce that tasks are proven to work before being marked complete.

What is the ultrathink feature?

By using the /effort high command and including "ultrathink" in your prompt, you force extended thinking with a 31,999-token budget for better reasoning on difficult problems.

Claude Code Advanced Features and Agentic Workflows

Claude Code operates as an agentic assistant that directly interacts with your local system, executing code and managing files rather than just generating text.

For large changes, users recommend having it write a detailed plan first. You specify the files to touch, the order of operations, and what to avoid, then execute one step at a time with a commit per step.

Customization comes from CLAUDE.md files for project context, hooks to block dangerous commands or auto-format, and MCP servers to integrate tools like GitHub or Playwright.

Claude Code Advanced Features and Agentic Workflows — infographic

Claude Code offers advanced features beyond basic code generation, primarily focusing on agentic capabilities and deep integration with development workflows. It allows for direct interaction with your system, code execution, and managing complex projects.

Agentic Capabilities and Local Interaction

Direct System Interaction: Claude Code can not only write code but also directly interact with it and run it on your local system. "Claude code is an Agentic assistant, that means it can not only write code, but directly interact with it and run it directly on your system."

Local File Access and Execution: Unlike the web version, Claude Code can interact with your machine and files locally, executing code on its own. "it can interact with your machine and files locally , that means it can not only write but execute that code on its own."

Managing Multiple Files and Precise Edits: Claude Code can handle numerous files simultaneously, make precise edits, execute code, and utilize various coding tools like APIs and MCPs, along with accessing local files. "In claude code, claude can manage a lot of different files at once, make precise edits without rewriting everything, execute code (make it run), and various other coding tools such as APIs, MCPs etc."

Enhanced Workflow and Project Management

Structured Planning and Execution: For complex tasks, many users advocate for having Claude Code generate a plan first, which details the files to be touched and the order of operations, before executing one step at a time. "For a 15-20 file change, don't hand it the feature. Make it write a plan first — files it will touch, order, and explicitly what it will NOT touch — read that yourself, then execute one slice at a time with a commit per slice."

Persistent Context and Memory Management: Utilize CLAUDE.md files for project-specific rules, architectural decisions, and roadmaps, as Claude automatically reads these when working in that directory. "solid list. one thing id add is using CLAUDE.md files per module for the really dangerous directories like auth and billing."

Automated Review and Refinement: Employ strategies like having Claude review its own work or using a second model (e.g., Codex via MCP) to vet plans, ensuring higher quality and catching errors early. "You're missing the best step: "vet your plan with codex via mcp first""

Advanced Customization and Tools

Hooks and MCP Servers: Hooks allow for custom actions like blocking dangerous commands or auto-formatting, while MCP (Multi-Agent Communication Protocol) servers turn Claude Code into a platform by enabling integration with external tools like GitHub, Playwright, and analytics platforms. "Hooks are the real power feature."

Workflow Orchestration: Define workflow rules within CLAUDE.md, such as "enter plan mode for any non-trivial task" or "never mark a task complete without proving it works," to enforce disciplined execution. "One thing that leveled up my workflow was adding a Workflow Orchestration section to CLAUDE.md — basically rules like "enter plan mode for any non-trivial task" and "never mark a task complete without proving it works.""

Debugging and Insights: Use /effort high with "ultrathink" for extended thinking and a larger token budget, and /insights to get an HTML file detailing potential workflow improvements. "Use /effort high then include "ultrathink” in your prompt. This forces full extended thinking with a 31,999-token budget."

Are you interested in exploring how to integrate these advanced features into your current development workflow?

Best for: Developers who want an AI assistant that directly executes code and manages local project workflows.