Four Memory Layers Developers Must Audit When Working With AI Coding Agents

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AI coding agents draw on four distinct storage layers — chat context, process environment, disk files, and Git objects — which behave independently and can easily be confused. A key misconception is that a model describing a file means the file exists on disk; chat context can hold text that was never actually written. Similarly, environment variables set with export do not persist into child shells, and an agent claiming to have deleted code does not mean the file was actually removed. Developers are advised to verify state using shell commands like test -f, git status, and rg rather than trusting the agent's narrative. A proposed bash audit script, persist_audit.sh, is offered as a local workflow tool to check all four layers before accepting any cleanup or mutation claims from an agent.

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