Manage graph nodes in the state graph. Supported actions: create (add single node), update (modify node properties), get (fetch node with edges), remove (delete node and cascade edges), list (filter nodes), search (FTS5 or TF-IDF search), batch_create (create multiple nodes atomically), batch_update (update multiple nodes atomically), add_note (log observation node with optional context link).

Manage typed graph relationships between nodes. Supported actions: add (create typed relationship), remove (delete relationship), batch_add (create multiple relationships atomically), link_visual (link task or artifact to visual memory state).

Manage agent tracking sessions and multi-turn workflow attribution. Supported actions: start (begin tracked session), end (conclude session), list (view active/historical sessions), bootstrap (single-turn start + context snapshot + next tasks).

Task prioritization, workflow execution, blockers, and stale task management. Supported actions: next (query prioritized unblocked tasks), complete (mark done and optionally create artifact), find_blocked (find tasks blocked by a decision), find_stale (find idle/untouched tasks), find_blockers (find active blockers), find_similar_blockers (TF-IDF search for previously resolved blockers), auto_prune (cancel stale in-progress tasks).

State checkpointing, time travel, diffing, and undo operations. Supported actions: save (create named checkpoint), list (list checkpoints), diff (compare two snapshots), get_state (reconstruct graph state at historical timestamp), revert (rollback graph to historical timestamp), undo (revert last mutation on a node), get_history (chronological audit log for a node).

Spec-Driven Development (SDD) lifecycle and workflow template generation. Supported actions: scaffold (generate spec template in .specs/), ingest (parse PRD/Gherkin into graph nodes), export (export spec node back to Markdown/Gherkin), compliance (calculate requirement coverage matrix), verify (mark acceptance criterion verified/failing), decompose_feature (decompose feature into plan/milestones/subtasks), template (scaffold FDD or RFC template).

Physical SQLite database maintenance, backups, integrity checks, and Git VCS state sync. Supported actions: backup (online SQLite backup), restore (destructive restore from backup), audit (foreign keys and physical integrity check), merge (merge external SQLite state DB), branch_diff (diff state nodes across git branches), branch_merge (resolve graph conflicts during branch merge).

Export and import graph structures, issue tracker items, fine-tuning trajectories, and multimodal synergy metrics. Supported actions: export_graph (export to JSON/DOT/Mermaid/HTML), export_issues (export to GitHub/Jira JSON), export_trajectories (export JSONL fine-tuning data), export_joint_trajectories (export interleaved state + vision data), export_synergy_metrics (compute dual-memory metrics), import_graph (bulk import nodes & edges), import_issues (import GitHub/Jira issues), import_spec (import PRD/Gherkin spec).

Query graph topology, neighborhoods, dependency paths, and safe read-only SQL queries. Supported actions: subgraph (fetch N-hop neighborhood around root node), trace (trace dependency chain upstream or downstream with cycle detection), raw (execute safe read-only SELECT query against SQLite), natural_language (translate natural language query into graph operations).

Compute workflow metrics, velocity, burndown, cognitive load, decision lineages, and contradiction audits. Supported actions: summary (project overview), velocity (throughput and duration), burndown (time-series remaining tasks chart), value_metrics (token savings and ROI), cognitive_load (ICL and ECL context complexity), critical_path (longest unfinished task chain), context_snapshot (consolidated overview), decision_trail (trace decision lineage), find_related_decisions (find decisions related to an artifact), contradictions (audit for conflicting decisions or broken states).

Inspect the append-only event audit ledger, query structured changesets, and generate session post-mortems. Supported actions: log (query event ledger with filters), changelog (get structured graph diff since timestamp or session), post_mortem (analyze a session and produce a structured markdown report).

Run graph sanity checks, health diagnostics, reference validation, audit chain verification, and storage maintenance. Supported actions: validate (check cycles, orphans, dangling edges), doctor (database WAL mode, schema version, storage health), check_refs (validate file paths and AST symbols with auto-heal), audit_chain (verify SHA-256 event hash integrity), compact (reclaim SQLite storage), archive (archive old completed tasks), prune_events (permanently prune events - admin mode required), version (retrieve package version info), dedupe (detect and merge duplicate nodes).

Multi-agent shared blackboard for asynchronous agent coordination. Supported actions: post (publish ephemeral notice with topic, content, and TTL expiration), read (read active non-expired blackboard notices).