AI agents call k_1_coloring to retrieve information from Neo4j Gds without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
K-1 coloring is a graph analysis algorithm that computes coloring assignments for nodes. While it may store or return results, the core operation is analyzing graph structure and computing derived properties. There is no indication of data deletion, modification of existing nodes/edges, code execution, or financial operations.
From the tool's definition Tool name 'k_1_coloring' and description 'assigns a color to every node in the graph' indicates a read-only graph algorithm that computes node properties without modifying the underlying data.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
The K-1 Coloring algorithm assigns a color to every node in the graph,. It is categorised as a Read tool in the Neo4j Gds MCP Server, which means it retrieves data without modifying state.
Register the Neo4j Gds MCP server in PolicyLayer and add a rule for k_1_coloring: 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 Neo4j Gds. Nothing to install.
k_1_coloring is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the k_1_coloring 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 k_1_coloring. 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.
k_1_coloring is provided by the Neo4j Gds MCP server (neo4j-contrib/gds-agent). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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