identity_get_token_vault
AI agents call identity_get_token_vault to retrieve information from Amazon Bedrock Knowledge Base Retrieval MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name indicates fetching/getting tokens from a vault, which is a data retrieval action (Read category). Tokens are sensitive authentication artifacts, so misuse could enable unauthorized access elsewhere, justifying high severity. The empty description reduces confidence—if this tool permits modification or creation of tokens, it could be Write or Execute instead.
From the tool's definition Tool name 'identity_get_token_vault' suggests retrieval of identity tokens from a vault, which is fundamentally a read operation. However, the description is empty, limiting definitive classification.
Documented attack patterns abuse exactly the kind of access identity_get_token_vault gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Amazon Bedrock Knowledge Base Retrieval MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for identity_get_token_vault:
{
"version": "1",
"default": "deny",
"tools": {
"identity_get_token_vault": {}
}
} identity_get_token_vault is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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identity_get_token_vault. It is categorised as a Read tool in the Amazon Bedrock Knowledge Base Retrieval MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Amazon Bedrock Knowledge Base Retrieval MCP Server MCP server in PolicyLayer and add a rule for identity_get_token_vault: 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 Amazon Bedrock Knowledge Base Retrieval MCP Server. Nothing to install.
identity_get_token_vault 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 identity_get_token_vault 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 identity_get_token_vault. 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.
identity_get_token_vault is provided by the Amazon Bedrock Knowledge Base Retrieval MCP Server MCP server (awslabs.bedrock-kb-retrieval-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Amazon Bedrock Knowledge Base Retrieval MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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805 Amazon Bedrock Knowledge Base Retrieval MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.