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The Evolution of Code Intelligence: From Models to Agents

A comprehensive analysis of the transition from code-generating foundation models to autonomous software development agents.

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Phase 2: Repository-Aware Systems (The "Context" Era)

To solve real-world problems, models needed to understand the entire codebase.

  • Innovation: Retrieval Augmented Generation (RAG) for code.
  • Techniques:
    • Repo-Map: Creating a compressed representation of the file tree and call graph (e.g., used by Aider).
  • Embeddings: Indexing code chunks for semantic search.
  • Capability: "Where is the User class defined?quot; "Refactor this function and update all callers."
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