graph.build · Knowledge To Action MCP: Risk & Policy

WHAT IT DOES

What graph.build does on Knowledge To Action

AI agents invoke graph.build to trigger actions in Knowledge To Action. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why graph.build needs a policy

graph.build triggers real processes with real consequences. An agent gone sideways doesn't fire it once — it starts dozens of builds, sends mass notifications, or burns through compute before anyone looks up.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

graph.build Rate-limited

graph.build stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "graph.build": {
      "limits": [
        {
          "counter": "graph.build_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Knowledge To Action, so you can run agents against it safely.

FAQ

Questions about graph.build

What does the graph.build tool do? +

Build the knowledge graph from the vault. Parses all wikilinks, tags, and computes backlinks. Must be called before using other graph/context tools. It is categorised as a Execute tool in the Knowledge To Action MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on graph.build? +

Register the Knowledge To Action MCP server in PolicyLayer and add a rule for graph.build: 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 To Action. Nothing to install.

What risk level is graph.build? +

graph.build is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit graph.build? +

Yes. Add a rate_limit block to the graph.build 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.

How do I block graph.build completely? +

Set action: deny in the PolicyLayer policy for graph.build. 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.

What MCP server provides graph.build? +

graph.build is provided by the Knowledge To Action MCP server (tac0de/knowledge-to-action-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.