Search RMS Memory. Returns {decision: inject|abstain, reason, injected_ids, results}; trust an abstain. corpus: vault (default, Markdown notes), code (derived semantic code), all (rank-fused). projects: [keys] = read-only cross-project search (wins over project; vault/all needs cross_project_vault=true on every key, else an error). Content is bounded by max_chars; use snippet_chars + rms_read to save tokens

Search only the derived semantic code index. Results include language, file, symbol, kind, line range, and segment index. The code index is optional, so an unindexed project returns an empty result list. Pass projects: [key, …] for read-only cross-project code federation (when both project and projects are set, projects wins); does not change the active bind.

Read a markdown document from the RMS Memory vault by relative path (e.g. 'rules/api.md'). Whole note by default. For long notes save tokens: outline (headings with sizes), heading (one section), max_chars/offset (window), if_hash (hash from an earlier read; returns a short 'unchanged' stub if the note has not changed).

Save new architectural decisions, constraints, development rules, or project context to the RMS Memory vault. Use this tool PROACTIVELY at the end of a task if you learned a new user preference, solved a tricky bug, or made a new architectural decision.

Query the derived code_path git file→commit history cache (no shell). Prefer this over git log for when a source file changed. Lazy catch-up on query; use action=reindex after force-push/rebase (requires explicit project). Default response omits commit messages. Catch-up/reindex enforce commit-count budgets.

Query and mutate the durable Markdown/code knowledge graph (MCP-first). Actions: status, ensure (reconcile vault links if empty or force=true), neighbors, path (BFS), snapshot, semantic (ephemeral embedding edges), create_edge / suppress_edge / edge_override (mutations require explicit project), export_dot. Prefer this for dependency traversal instead of guessing from search alone.

Run the vault health diagnostics (structure, IDs, links, LanceDB, wiki isolation, registry, freshness, credentials; plus pattern staleness when the vault has patterns/). Also reports a newer release (checked at most daily; RMS_MEMORY_NO_UPDATE_CHECK=1 disables) or a server binary replaced since start. Returns structured JSON. Set repair_frontmatter=true only with an explicit project (refuses sticky-bind repair).

Full rebuild of vault and/or code indexes. Destructive to derived tables — requires explicit project. Prefer rms_sync for incremental catch-up.

Incremental vault index sync (same as CLI rms-memory sync). Prefer an explicit project when the IDE is multi-root.

Generate a wiki context pack from the vault and code index. Returns material for an agent to create human-readable wiki documentation from verified sources.

List registered RMS Memory project keys. This tool works even when the MCP client did not provide a workspace root.

Structured orientation summary for exactly one project: document counts by folder and status, recent notes, active checkpoints, index lag, and the code repository's git state (branch, HEAD, ahead/behind, changed file names; never diff contents). Call this at session start. Fail-closed: requires a bound workspace or an explicit project key; never aggregates across projects.

Find superseded vault notes older than a retention window and optionally archive them under artifacts/pruned/. Defaults to a dry run; set apply=true to archive candidates. Never deletes notes.

Read-only memory hygiene report for one project: near-duplicate and identical notes (embedding similarity), active checkpoints untouched for 14+ days, and session notes older than 90 days, with next steps. Never edits the vault; merge duplicates with rms_write + supersedes.

Create or update a session checkpoint (artifacts/checkpoints/.md, status=active). Save before context compaction or a long pause so work can be resumed. Updating preserves id/created_at and keeps omitted fields. The code repository branch and HEAD are recorded automatically.

Close a checkpoint: marks it status=done (drops out of recall) and writes a durable session summary note under artifacts/sessions/.

Load one checkpoint with its full body and bounded previews of linked notes. Use rms_checkpoint_query first to find names.

List checkpoints for the current project, newest first, with full pending text. Filter with status=active|done|all (default all).

Personal reminders that you pass on to the user. When the user says e.g. "remind me to call Viktor Petrovich tomorrow at 12", call action=add with text and due_at (RFC3339 WITH the user's UTC offset, e.g. 2026-11-06T12:00:00+03:00; use in_minutes for relative times; if you do not know the date, time or timezone, ask first). Afterwards, tool responses carry a [RMS reminder] block about 30/20/10/5 minutes before the time and once when it is due: relay it to the user in your reply. Other actions: list, done, cancel, snooze (new due_at/in_minutes). Global, not per project.

Return the canonical RMS Memory usage protocol (search-first, persist, session continuity). Lets an agent self-bootstrap without injected rule files.