Create a new knowledge graph. Supports multiple graph types such as topology, timeline, changelog, requirement documentation, etc. Design guidelines for each graph type: - topology: Used to represent dependencies between system components and modules. Recommended to first create main module nodes...
Part of the Knowledge Graph Server server.
Free to start. No card required.
AI agents use create_graph to create or modify resources in Knowledge Graph Server. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call create_graph repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Knowledge Graph Server.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"create_graph": {
"limits": [
{
"counter": "create_graph_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Knowledge Graph Server policy for all 15 tools.
These attack patterns abuse exactly the kind of access create_graph gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Create a new knowledge graph. Supports multiple graph types such as topology, timeline, changelog, requirement documentation, etc. Design guidelines for each graph type: - topology: Used to represent dependencies between system components and modules. Recommended to first create main module nodes, then add component nodes, and finally represent relationships through edges like calls, dependencies, and containment - timeline: Used to record important project events and decisions. Recommended to add event nodes in chronological order and link related personnel and decisions - changelog: Used to track change history of features and components. Recommended to create nodes for each significant change, marking change types and impact scope - requirement: Used for requirement management and tracking. Recommended to first create high-level requirements, then break down into specific features, and finally link to responsible persons and iterations - knowledge_base: Used to build domain knowledge systems. Recommended to start from core concepts and gradually expand related concepts and relationships - ontology: Used for formal representation of domain concepts and relationships, suitable for building standardized knowledge models. It is categorised as a Write tool in the Knowledge Graph Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Knowledge Graph Server MCP server in PolicyLayer and add a rule for create_graph: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Knowledge Graph Server. Nothing to install.
create_graph is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create_graph rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for create_graph. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
create_graph is provided by the Knowledge Graph Server MCP server (aiuluna/knowledge-graph-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 15 Knowledge Graph Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.