Project Memory Becomes the New Coding Agent Patch

Project memory changes the role of the coding assistant from generator to participant in an existing system. The important move in Mneme is not storage format; it is authority. A plain file becomes the place where a team's decisions outrank the model's next suggestion, and that hierarchy matters more than whether the assistant can plan another task. Once constraints are externalized, the model's failure to respect them becomes a compliance problem inside the repo, not a quirk of prompting.