Migrate mem0 OSS → mem0 Platform (hosted)

This skill migrates a project's memory layer from the self-hosted mem0 OSS SDK to the hosted mem0 Platform SDK, working for any project shape — an agent, a RAG pipeline, an API service, a chatbot, a background worker. You discover where mem0 is actually used, write a plan the developer reviews, and then execute it on approval.

The mental model (read this first — it's why the migration is shaped the way it is)

OSS mem0 means the developer runs the whole memory stack themselves: a vector store (Qdrant/pgvector/Chroma/…), an embedder, an LLM for fact extraction, and a local history DB. All of that is wired up in a config object passed to Memory.

The Platform means mem0 runs that stack for them. The developer just holds an API key. So the migration is mostly subtraction: the local infrastructure config collapses into a single MemoryClient(api_key=...). The method calls stay recognizable (add/search/get_all/…), but a few parameter conventions tighten up and the return values are server responses.