NVIDIA NemoClaw CKG
Server Details
NVIDIA NemoClaw knowledge graph — 55 nodes, F1 0.576 (+269% vs RAG), 11x fewer tokens. MCP-native.
- Status
- Healthy
- Uptime
- 18.2% over the last 24 hours
- Last Tested
- Transport
- Streamable HTTP · MCP 2025-11-25
- URL
- Server Listing
- io.github.Yarmoluk/ckg-nvidia-nemoclaw
- ChatGPT
- –
- Claude
- –
TDQS
Scored across 8 tools
Several tools traverse the knowledge graph (ask_nemoclaw, query_ckg, query_intersect, get_prerequisites), creating potential overlap in purpose. However, each has a distinct focus—Q&A, subgraph extraction, conjunctive queries, and prerequisite chains—and the detailed descriptions help agents choose appropriately.
Tool names follow a consistent verb_noun pattern (ask, get, list, query, route, search, verify). The slight inconsistency lies in the verbs themselves—'ask' vs. 'query' vs. 'route'—which could confuse agents, but the pattern is otherwise uniform.
With 8 tools, the server is well-scoped for a knowledge graph system. Each tool serves a distinct function, and the count is neither too sparse nor overwhelming.
The tool set covers the full range of expected operations for a read-only knowledge graph: search, query, specific traversals, domain listing, and source verification. No obvious gaps exist for the stated purpose.
Available Tools
8 toolsask_nemoclawBInspect
Answer a question about NVIDIA NemoClaw by traversing the knowledge graph.
Covers: agent runtimes (OpenClaw/Hermes/Deep Agents), OpenShell platform, inference routing, network policy, security layers, deployment paths, progressive tool disclosure, managed MCP servers, snapshots, shields, FOX Blueprint, Nemotron 3 Ultra ecosystem, and platform support.
Args: question: Your question about NemoClaw concepts or architecture.
| Name | Required | Description | Default |
|---|---|---|---|
| question | Yes |
Output Schema
| Name | Required | Description |
|---|---|---|
| result | Yes |
get_prerequisitesAInspect
Return the full upstream prerequisite chain for a NemoClaw concept.
Useful for understanding what a concept depends on end-to-end.
Args: concept: Exact or partial concept label.
| Name | Required | Description | Default |
|---|---|---|---|
| concept | Yes |
Output Schema
| Name | Required | Description |
|---|---|---|
| result | Yes |
list_domainsAInspect
List available domains in this CKG server.
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
Output Schema
| Name | Required | Description |
|---|---|---|
| result | Yes |
query_ckgAInspect
Return the typed subgraph around a NemoClaw concept.
Args: concept: Exact or partial concept label (e.g. 'OpenClaw', 'NetworkPolicy', 'L7Proxy'). depth: Traversal hops (1–5, default 3).
| Name | Required | Description | Default |
|---|---|---|---|
| depth | No | ||
| concept | Yes |
Output Schema
| Name | Required | Description |
|---|---|---|
| result | Yes |
query_intersectAInspect
Answer a conjunctive query: concepts reachable from EVERY anchor at once (A AND B).
query_ckg walks outward from one concept. This intersects the reachable sets of two or more, which is the shape of most real questions — "the component that satisfies A AND applies to B". Neither anchor alone answers it; the answer lives in the overlap.
Every branch is an exact set of declared edges, so the intersection is exact. A concept appears only if a declared path reaches it from each anchor. A relation missing from the graph produces an empty result, never a guess.
Args:
branches: Two or more branches. Either a bare anchor ("TensorRT-LLM"), which takes
everything within depth hops, or an anchor plus an explicit relation path using
'>' ("TensorRT-LLM > REQUIRES > ENABLES"), where each relation replaces the
frontier. '*' matches any relation. Mix both forms freely.
depth: Hops for bare-anchor branches, 1-5 (default 2). Ignored for explicit paths.
direction: 'out' follows dependencies, 'in' follows them backwards, 'both' (default).
mode: 'AND' (default) intersects branches; 'OR' unions them.
limit: Max concepts listed, 1-200 (default 40). The true count is always shown.
Returns: Markdown with the query plan and its per-step set sizes, then the answer set with taxonomy tags. Reports which branch was empty when the intersection is empty.
| Name | Required | Description | Default |
|---|---|---|---|
| mode | No | AND | |
| depth | No | ||
| limit | No | ||
| branches | Yes | ||
| direction | No | both |
Output Schema
| Name | Required | Description |
|---|---|---|
| result | Yes |
route_queryAInspect
Route a NemoClaw question to the optimal model and reasoning approach via graph depth.
The CKG graph IS the router. NemoClaw's dependency chains (e.g. OpenShell → L7Proxy → CorporateCA → mTLS) are deep and typed — hop depth is a deterministic complexity signal. No heuristic: the graph decides which model and reasoning approach to use.
Routing table: hop_depth 1 → haiku · direct (single concept lookup) hop_depth 2 → sonnet · generic_cot (moderate chain) hop_depth 3+ → opus · sparql_cot (deep chain, structured reasoning required)
Args: question: Concept name or natural language question about NemoClaw / OpenShell.
Returns: model_tier + reasoning_approach + why + context subgraph to inject before LLM call.
| Name | Required | Description | Default |
|---|---|---|---|
| question | Yes |
Output Schema
| Name | Required | Description |
|---|---|---|
| result | Yes |
search_conceptsAInspect
Fuzzy search for NemoClaw concepts by name or keyword.
Args: query: Partial name or keyword (e.g. 'policy', 'inference', 'agent').
| Name | Required | Description | Default |
|---|---|---|---|
| query | Yes |
Output Schema
| Name | Required | Description |
|---|---|---|
| result | Yes |
verify_sourceAInspect
Return the authoritative source URL and content hash for a NemoClaw concept node.
Every node in the CKG was declared from a specific source document. This tool returns the source URL (where the node came from) and the SHA-256 hash of that document's bytes at extraction time. A hash mismatch on re-fetch means either the source has changed (stale edge — re-extract) or the graph was patched without re-fetching (silent edit — investigate).
Audit chain: edge answer → graph commit → source_hash → source_url (fetch hint)
Verification: curl -s <source_url> | sha256sum # compare output to source_hash
Args: concept: Exact or partial concept label (e.g. 'CorporateCA', 'L7Proxy').
| Name | Required | Description | Default |
|---|---|---|---|
| concept | Yes |
Output Schema
| Name | Required | Description |
|---|---|---|
| result | Yes |
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
1 tool update
- Added
query_intersect
7 tool updates
- First observed
ask_nemoclaw - First observed
get_prerequisites - First observed
list_domains - First observed
query_ckg - First observed
route_query - First observed
search_concepts - First observed
verify_source
Related MCP Connectors
NVIDIA AI knowledge graphs — 20 domains. 4x F1, 11x fewer tokens, SHA-256 provenance. MCP-native.
Salesforce AgentForce knowledge graph — 40 nodes, Einstein Trust Layer, 11x fewer tokens than RAG.
Graph-native persistent memory for AI agents — 33 MCP tools, zero-LLM writes.
Stateless agentic tools over MCP: concept extraction, long-context, knowledge graph, planning.
Related MCP Servers
- AlicenseAqualityAmaintenanceSalesforce AgentForce as a traversable MCP knowledge graph. 40 nodes covering Einstein Trust Layer, Agent Topics, Actions, Data Cloud, and Resolution Criteria. 11x fewer tokens than RAG. Free: uvx ckg-agentforce939 PyPI1MIT
- AlicenseNot gradedqualityCmaintenanceRAG Knowledge Graph - MCP server providing AI-powered tools and automation by MEOK AI Labs10 npm33 PyPIMIT
- AlicenseNot gradedqualityBmaintenanceMCP orchestrator combining code knowledge graph and context compression into a single pipeline to reduce token usage by 60-99%.MIT
- AlicenseNot gradedqualityDmaintenanceEnables autonomous orchestration of vector search, knowledge graph queries, and web crawling through a single MCP interface, providing agentic RAG capabilities for AI assistants.9MIT
Glama MCP Gateway
Add one secure layer between your agents and this server.