unison-brain

Drive the Unison brain — the user's hosted, cross-session memory and knowledge graph — via the `unison` CLI (with SDK and MCP for code/no-shell agents). Use at the start of any non-trivial task (recall decisions, conventions, prior fixes, who's-who before answering); whenever the user states a decision or hard-won insight worth keeping; when a person/project/system you lack context on is mentioned; when the user says "remember this" / "save this" / "have we decided this before?"; and when they want to upload, ingest, or import documents / a folder / a vault into the brain. Also covers first-time setup of the CLI (install, login, API keys).