Persistent memory storage — docs, runbooks, specs, ADRs, RFCs, decisions, lessons, preferences, tasks, todos, knowledge nodes, transcripts. NOT for codebase/file search (use `search`).
Finding a doc, runbook, spec, ADR, or decision? Use this tool, NOT `find`, `ls`, `grep`, or filesystem search: ContextStream docs are not on disk. Start with memory(action="search", query="…") (memory nodes and relevant docs together), then memory(action="list_docs", query="…") + get_doc (ID or natural-language title query), memory(action="decisions", query="…"), or session(action="recall", query="…") for past sessions.
Elsewhere: plans → session(action="capture_plan"); tickets/handoffs → entity; lessons → session; bundles → capsule. create_task is a lightweight todo, not a ticket (pass plan_id + plan_step_id for plan tasks).
Actions include create_decision, create_node, create_event, create_task, create_todo, create_diagram, create_doc, list_transcripts. Full action reference: the `action` parameter.