Process Entire Codebases with the 1 Million Token Context Window
Upload entire projects to Claude Sonnet 5 for cohesive, global-context coding.
Leverage the 1M token context window of Claude Sonnet 5 to process entire code repositories or massive datasets in a single session.
The Scenario
You are working on a complex software project and need to implement a new feature that touches multiple files and legacy modules. You need the AI to understand the entire architecture to avoid breaking dependencies.
Before & after
Manually copying and pasting small code snippets often results in 'hallucinations' or missing context, taking 45–60 minutes to explain the architecture to the AI.
By providing the entire project folder to Sonnet 5, the model uses its 1M token window to map all dependencies and logic, completing the fix or feature in 4–8 minutes.
The Prompt
I am uploading my entire project codebase. Based on this full context, please [IDENTIFY_VULNERABILITY/IMPLEMENT_FEATURE] while ensuring it integrates perfectly with the existing architecture in [SPECIFIC_FILE_OR_MODULE]. Please review all interconnected files provided.
Claude Sonnet 5 features a massive 1M token context window, allowing it to ingest entire codebases or long documentation sets without losing details. This makes it ideal for architectural refactors or multi-file debugging.
Source
Claude Platform - Claude Platform Docs"Claude Sonnet 5 supports a 1M token context window, 128k max output tokens... the next generation of our Sonnet model family."