pki-set-signed-intermediate

WHAT IT DOES

What pki-set-signed-intermediate does on Vault MCP Server (mschuchard)

AI agents use pki-set-signed-intermediate to create or update resources in Vault MCP Server (mschuchard) — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Vault MCP Server (mschuchard) environment.

WHY IT NEEDS A POLICY

Why pki-set-signed-intermediate needs a policy

This tool modifies PKI certificate infrastructure by setting a signed intermediate certificate. While not destructive (the operation is theoretically reversible by setting a different intermediate), it materially alters security-critical certificate chain configurations that could impact system authentication and encryption.

From the tool's definition Tool name 'pki-set-signed-intermediate' indicates modification of PKI (Public Key Infrastructure) certificate chain state.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

pki-set-signed-intermediate Rate-limited

pki-set-signed-intermediate stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "pki-set-signed-intermediate": {
      "limits": [
        {
          "counter": "pki-set-signed-intermediate_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Vault MCP Server (mschuchard), so you can run agents against it safely.

FAQ

Questions about pki-set-signed-intermediate

What does the pki-set-signed-intermediate tool do? +

pki-set-signed-intermediate. It is categorised as a Write tool in the Vault MCP Server (mschuchard) MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on pki-set-signed-intermediate? +

Register the Vault MCP Server (mschuchard) MCP server in PolicyLayer and add a rule for pki-set-signed-intermediate: 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 Vault MCP Server (mschuchard). Nothing to install.

What risk level is pki-set-signed-intermediate? +

pki-set-signed-intermediate is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit pki-set-signed-intermediate? +

Yes. Add a rate_limit block to the pki-set-signed-intermediate 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 pki-set-signed-intermediate completely? +

Set action: deny in the PolicyLayer policy for pki-set-signed-intermediate. 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 pki-set-signed-intermediate? +

pki-set-signed-intermediate is provided by the Vault MCP Server (mschuchard) MCP server (mschuchard/vault-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.