The future of agentic coding with Claude Code
Summary
TLDRIn this discussion, Alex and Boris explore the evolution of AI-driven coding with Claude Code at Anthropic. They trace the shift from manual IDE-based coding to agentic workflows where AI autonomously manipulates code. Boris explains how Claude Code combines a powerful AI model with a guiding harness to streamline development, manage context, and integrate tools. They highlight the importance of feedback loops, real-world usage, and task-based strategies for effective coding. The conversation emphasizes the transformative potential of coding agents, enabling rapid prototyping, creative experimentation, and a future where developers focus on high-level goals rather than low-level implementation details.
Takeaways
- 😀 AI-assisted coding has evolved from basic IDE autocomplete to agentic coding, where models like Claude Code actively write and manage code.
- 😀 Claude Code combines a powerful AI model with a harness that provides context, tools, and control, enabling developers to steer the model effectively.
- 😀 The development of Claude Code has been iterative, coevolving with model improvements (Sonnet 3.5 → 3.7 → 4.0 → Opus 4.1) and better harness design.
- 😀 Real-world usage and internal dogfooding serve as the primary evaluation method for Claude Code, as synthetic benchmarks alone cannot capture the complexity of software engineering.
- 😀 Immediate feedback loops and active listening to users are crucial; the internal Slack feedback channel encouraged continuous improvements and high adoption.
- 😀 Claude Code is highly extensible via CLAUDE.md, hooks, MCP integration, slash commands, and subagents, enabling customized and reusable workflows.
- 😀 Agents simplify coding by allowing developers to focus on ideas and high-level design rather than the intricate details of implementing code manually.
- 😀 Engineers should classify tasks as easy, medium, or hard to determine the optimal way to use Claude Code, from full automation to paired implementation.
- 😀 Long-term, AI agents are expected to handle higher-level goals like PR reviews or entire app development, while engineers supervise and guide outcomes.
- 😀 New developers should start by using Claude Code to explore and understand the codebase before relying on it to write code, building trust in the agent gradually.
- 😀 Creativity and rapid prototyping are now more accessible due to agentic coding, allowing ideas to be turned into functional code quickly without deep expertise in all underlying systems.
- 😀 Continuous improvements in model autonomy, instruction adherence, and memory retention directly enhance the effectiveness of Claude Code for developers.
Q & A
What is agentic coding and how has it changed the way developers write code?
-Agentic coding refers to using AI agents to autonomously perform coding tasks rather than directly manipulating code in an IDE. This allows developers to guide the AI with high-level instructions while the model writes, edits, and manages code, shifting the workflow from hands-on text manipulation to AI-assisted development.
How did Claude Code evolve over the past year in terms of model and harness?
-Claude Code has evolved with improvements in both the AI models (from Sonnet 3.5 to Opus 4.1) and the harness, which includes tools, system prompts, context management, and integrations. These upgrades increased model autonomy, improved code generation quality, and expanded the system's ability to handle complex workflows.
What is meant by the 'harness' in Claude Code?
-The harness refers to the framework and tools around the model that enable it to function effectively. This includes context management, system prompts, tool integrations, permissions, and interfaces, which together allow the AI to perform agentic coding efficiently, much like a saddle enables control when riding a horse.
How does internal feedback contribute to the improvement of Claude Code?
-Internal feedback is collected through daily usage by engineers and a dedicated Slack channel. Rapidly addressing feedback creates a continuous loop where developers see their input implemented quickly, which improves the product, helps refine the AI model, and encourages ongoing participation.
What are some of the key extension points in Claude Code?
-Key extension points include CLAUDE.md files for providing additional context, hooks for custom behaviors, MCP servers for integrations, user-defined slash commands, and subagents. These allow developers to customize, automate, and extend the system to suit their workflows.
What is the recommended approach for new users starting with Claude Code?
-New users should begin by asking Claude Code questions about the codebase to understand functions, architecture, and Git history, rather than using it immediately for writing code. This helps users learn to interact effectively with the agent before leveraging it for code generation.
How should developers categorize tasks when using Claude Code?
-Tasks can be categorized as easy, medium, or hard. Easy tasks can be handled entirely by Claude with minimal input. Medium tasks involve planning with Claude first and then implementing via auto-accept. Hard tasks require the developer to remain in control, using Claude primarily for research, prototyping, or assistance.
What is the long-term vision for Claude Code in software development workflows?
-The long-term vision is for Claude Code to handle higher-level goals, moving from individual code edits to PR-level changes and eventually goal-oriented tasks such as building full applications. Developers will focus more on guiding and supervising AI rather than manually writing every line of code.
How does Claude Code help simplify the development process for new ideas?
-Claude Code reduces complexity by enabling rapid prototyping and iteration without requiring deep expertise in multiple frameworks or build systems. It allows developers to focus on the idea itself, rewriting and refining code automatically, making the creation process faster and more accessible.
What skills should engineers continue to develop in an AI-assisted coding environment?
-Engineers should maintain core coding skills, including understanding programming languages, compilers, runtimes, system design, and building web apps. Simultaneously, they should focus on creativity, problem-solving, and leveraging AI tools like Claude Code to prototype, iterate, and execute ideas efficiently.
How do slash commands and agents relate to each other in Claude Code?
-Slash commands are workflow instructions that can automate specific tasks, while agents are like advanced slash commands with a forked context window, enabling more complex and autonomous operations. Both serve as extension points to customize and extend Claude Code's functionality.
Why are real-world feedback and day-to-day usage considered the best evaluation method for Claude Code?
-Real-world feedback captures the breadth and complexity of tasks that engineers perform, which synthetic benchmarks often miss. Using Claude Code in day-to-day work reveals its practical strengths and limitations, providing immediate, actionable insights for model and harness improvement.
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