modelintermediateClaude Code

Claude Code 2026 Update: Opus 4.6 & Sonnet 4.6 Models Unlock Agentic Capabilities

Anthropic has released powerful new AI models, Opus 4.6 and Sonnet 4.6, which significantly upgrade the Claude Code tool. These updates enable the tool to better understand and manage entire codebases autonomously, and introduce a marketplace for new plugins and skills.

AI SETUP PROMPT

Paste into Claude Code — it will scan your project and set everything up

# Evaluate Model: Claude Code 2026 Update: Opus 4.6 & Sonnet 4.6 Models Unlock Agentic Capabilities

## What This Is
Anthropic has released powerful new AI models, Opus 4.6 and Sonnet 4.6, which significantly upgrade the Claude Code tool. These updates enable the tool to better understand and manage entire codebases autonomously, and introduce a marketplace for new plugins and skills.

Source: https://www.youtube.com/watch?v=0hdFJA-ho3c

## Before You Start

Scan my workspace and analyze:
- The project language, framework, and current AI integrations
- Existing AI provider config (check .env, .env.local, config files for API keys — OpenRouter, OpenAI, Anthropic, Google AI, etc.)
- Which AI models I currently use and for what purposes

Then ask me before proceeding:
1. Am I interested in evaluating this model for my project, or just want a summary of what it offers?
2. If I want to try it — which part of my current AI stack should it replace or complement?

## Source Access Note

The source URL (https://www.youtube.com/watch?v=0hdFJA-ho3c) may not be directly accessible from the terminal. Use the Reference Implementation and Additional Context sections below instead. If you need more details, ask me to paste relevant content from the source.

## What to Implement

This is a **New AI Model** — a model release, update, or capability announcement.

- Analyze the best use cases for this model within my project and current AI stack
- Compare its strengths, pricing, and context window against whatever I currently use
- Give me a clear, convincing argument for why this model would (or would not) be a good fit for my project
- If I want to try it: update my API configuration (provider, model ID, any new parameters) to point to this model
- If it requires a new API key or provider signup, tell me exactly what to do

## Additional Context

- Scan the user's environment to identify the installed `claude` CLI version and associated configuration files to determine compatibility with the new models.
- Analyze the user's project settings (e.g., `claude.json`) to identify the currently configured model and propose an update to 'claude-4.6-opus' for complex reasoning tasks or 'claude-4.6-sonnet' for balanced performance.
- Propose a new CI/CD pipeline step leveraging the headless execution mode (`claude -p`) and the enhanced reasoning of Opus 4.6 to perform a full codebase security and style audit on pull requests.

## Reference Implementation

```
claude -m claude-4.6-opus -p "Analyze the entire codebase, identify all files using deprecated API calls, and generate a refactoring plan in a new file named REFACTOR_PLAN.md."
```

## Guidelines

- Adapt everything to my existing project — do not assume a specific stack or directory layout
- Use whichever AI provider I already have configured; if I need a new one, tell me what to sign up for and I'll give you the key
- Check my .env files for existing API keys (OpenRouter, OpenAI, Anthropic, Google AI) before asking me to add one
- Review any fetched code for safety before installing or executing it
- After setup, run a quick verification and show me a summary of exactly what was installed, where, and how to use it

3,201 charactersCompatible with Claude Code & Codex CLI

MANUAL SETUP STEPS

01Scan the user's environment to identify the installed `claude` CLI version and associated configuration files to determine compatibility with the new models.
02Analyze the user's project settings (e.g., `claude.json`) to identify the currently configured model and propose an update to 'claude-4.6-opus' for complex reasoning tasks or 'claude-4.6-sonnet' for balanced performance.
03Propose a new CI/CD pipeline step leveraging the headless execution mode (`claude -p`) and the enhanced reasoning of Opus 4.6 to perform a full codebase security and style audit on pull requests.

CODE INTELLIGENCE

bash

claude -m claude-4.6-opus -p "Analyze the entire codebase, identify all files using deprecated API calls, and generate a refactoring plan in a new file named REFACTOR_PLAN.md."

FIELD OPERATIONS

Automated Legacy Codebase Modernization Agent

Create an agent that uses Claude Code with Opus 4.6 to scan an entire legacy codebase (e.g., Python 2, old framework). The agent will generate a multi-step modernization plan, including identifying deprecated libraries, converting syntax, and restructuring code for modern best practices, executing the plan file-by-file.

Dynamic Pull Request Visualizer

Configure a CI/CD workflow that triggers Claude Code on every new pull request. The agent will analyze the changes and use the new interactive chart generation capability to create and post a visual dependency graph or a code complexity heat map as a comment in the PR.

STRATEGIC APPLICATIONS

→Set up an automated due diligence agent using Opus 4.6's high benchmarks in legal and finance to scan a target company's codebase for IP risks, open-source license compliance violations, and hidden security vulnerabilities during a tech M&A process.
→Implement an autonomous QA agent team in a CI/CD pipeline where one agent writes unit tests for new features, another performs integration testing, and a third agent reviews the code for logic errors, all orchestrated by Claude Code before merging to production.