Save a durable fact, preference, or decision to ragionex-memory-mcp (cross-client persistent memory: Claude Desktop, Claude Code, Cursor, Cline, Codex, ChatGPT, Zed). Use for content that should persist across sessions and AI tools. Parameters: content (English; memories are stored in English), project (slugified ^[a-z0-9-]+$, e.g. 'general', 'acme-app'). The priority rule (in CLAUDE.md, injected by the server) defines the full write semantics: PROJECT LABEL inference, WHAT TO SAVE vs SKIP signals, LIFECYCLE replacement detection, and the WRITE RULES (atomic save: ONE fact per call, no bundling). Returns memory ID + status; async, use ragionex_memory_status to check readiness.

Search memories in ragionex-memory-mcp by semantic similarity. queries is an ARRAY of full QUESTION sentences (English, no time vocabulary) - full questions match far better than keyword fragments. ALWAYS send 2-3 different phrasings of the topic as separate array items (results are merged + deduped server-side, so extras only help) - never a single bare keyword. Other params: optional project, optional start_date / end_date (ISO 8601 'YYYY-MM-DD' or 'YYYY-MM-DDTHH:MM:SSZ'). The priority rule (in CLAUDE.md, injected by the server) defines full RECALL semantics: the 2-3-question rule, the EXACT-vs-VAGUE date rule, time-stays-out-of-queries. For a time window with no topic, use ragionex_list_memories instead. Returns ranked matches.

List memories with previews and processing status, ordered by most recently created. Use this to BROWSE what is stored when there is no specific topic to search for - especially when the user asks 'what did I save last week?', 'show me April memories', or any time-window-only request. Parameters: optional project (slug), optional start_date and end_date (ISO 8601: 'YYYY-MM-DD' or 'YYYY-MM-DDTHH:MM:SSZ'), optional limit (most recent first, default 50). See the priority rule (in CLAUDE.md, injected by the server) for the LIST vs RECALL decision (topic -> recall, no topic -> list) and the EXACT-vs-VAGUE date rule. For full content of specific IDs, use ragionex_view_memory.

Retrieve full original content for one or more memory IDs. Use this when ragionex_list_memories or ragionex_recall_memory returned a preview and you need the complete content. Non-owned IDs are silently skipped.

Replace the content or move to a different project for an existing memory. Provide at least one of content or project. Updating content reprocesses the memory (status returns to 'processing' until reprocessing finishes).

Permanently delete one or more memories. This is irreversible: all stored data for that memory is removed. Returns the count of deleted memories.

Get the current processing status of a memory. Returns 'processing' (still being prepared), 'ready' (available), or 'failed' (an error occurred during processing). Use after ragionex_save_memory to know when ragionex_recall_memory will return the new memory.

List every project that exists on this account, with the memory_count per project (sorted alphabetically). Use this to discover which project labels are in use before calling ragionex_list_memories, ragionex_recall_memory, ragionex_rename_memory_project, or ragionex_delete_memory_project.

Rename a project: bulk-update every memory currently labelled 'name' to use 'new_name' instead. The source project must exist. Returns the number of memories that were re-labelled. If 'name' equals 'new_name', this is a no-op.

DESTRUCTIVE: permanently delete a project AND every memory inside it. All memories labelled with this project name are removed along with their stored data. This is irreversible. Use ragionex_delete_memory (with explicit IDs) when only some memories should be removed. Returns the count of memories deleted.