Title: Context Engineering for Python Codebases – Real Python
Open Graph Title: Context Engineering for Python Codebases – Real Python
Description: Learn how context engineering shapes what your AI coding agent sees on every turn, and use four practical strategies to keep your Python projects on track.
Open Graph Description: Learn how context engineering shapes what your AI coding agent sees on every turn, and use four practical strategies to keep your Python projects on track.
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"text": "\u003cp\u003e\u003ca href=\"/ref/ai-coding-glossary/context-engineering/\" class=\"ref-link\"\u003eContext engineering\u003c/a\u003e is the practice of curating what goes into an AI agent\u0026rsquo;s limited context window on each turn. It covers everything the agent sees alongside your prompt, including instruction files, opened files, tool definitions, and conversation history.\u003c/p\u003e"
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"text": "\u003cp\u003e\u003ca href=\"/ref/ai-coding-glossary/prompt-engineering/\" class=\"ref-link\"\u003ePrompt engineering\u003c/a\u003e focuses on writing a single effective instruction. \u003ca href=\"/ref/ai-coding-glossary/context-engineering/\" class=\"ref-link\"\u003eContext engineering\u003c/a\u003e manages everything else the agent sees on the same turn, like instruction files, retrieved snippets, tool catalogs, and previous conversation. The two work together, but they operate at different layers.\u003c/p\u003e"
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"text": "\u003cp\u003eAn \u003ccode\u003eAGENTS.md\u003c/code\u003e file is a repository-level instruction file that AI coding agents automatically load into the context window. It\u0026rsquo;s a good home for project conventions like the Python version, the dependency manager, the test command, and style rules. Keep it short to avoid diluting individual rules.\u003c/p\u003e"
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"text": "\u003cp\u003eThe four strategies are Curate, Distill, Delegate, and Externalize. Curate decides what to put in the window for the current task. Distill shrinks what\u0026rsquo;s already there. Delegate splits work across separate windows using subagents. Externalize saves information outside the window in files.\u003c/p\u003e"
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