update-vault-entry

Update an authorization vault entry

SERVERFrontmcp SOURCEagentfront/frontmcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/frontmcp/update-vault-entry.md

WHAT IT DOES

What update-vault-entry does on Frontmcp

AI agents use update-vault-entry to create or update resources in Frontmcp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Frontmcp environment.

RISK

Why update-vault-entry is rated Medium

This tool modifies existing vault entries, which are typically security-sensitive authorization data (credentials, tokens, keys). The Write category applies because updates are reversible (unlike Destructive deletion). However, severity is high because misuse could compromise authentication/authorization systems by modifying valid credentials or injecting malicious ones.

From the tool's definition Tool name 'update-vault-entry' and description 'Update an authorization vault entry' indicate modification of stored authorization credentials or secrets in a vault system.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update-vault-entry safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Frontmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For update-vault-entry, this is the rule to start with:

update-vault-entry Rate-limited

update-vault-entry 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": {
    "update-vault-entry": {
      "limits": [
        {
          "counter": "update-vault-entry_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Frontmcp, apply this rule, and every update-vault-entry call is checked against it from then on.

FAQ

Questions about update-vault-entry

What does the update-vault-entry tool do? +

Update an authorization vault entry. It is categorised as a Write tool in the Frontmcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update-vault-entry? +

Register the Front MCP server in PolicyLayer and add a rule for update-vault-entry: 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 Frontmcp. Nothing to install.

What risk level is update-vault-entry? +

update-vault-entry is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit update-vault-entry? +

Yes. Add a rate_limit block to the update-vault-entry 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 update-vault-entry completely? +

Set action: deny in the PolicyLayer policy for update-vault-entry. 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 update-vault-entry? +

update-vault-entry is provided by the Front MCP server (agentfront/frontmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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