list-cost-allocation-tag-backfill-history
AI agents call list-cost-allocation-tag-backfill-history 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 'list' prefix indicates a query/retrieval action that would return historical information about cost allocation tag backfill operations. This has no side effects on data—it only reads and returns information. Without a description, confidence is reduced, but the naming pattern is clear. Severity is low because misuse would only expose historical metadata, not cause harm or financial impact.
From the tool's definition Tool name 'list-cost-allocation-tag-backfill-history' contains 'list', which is a retrieval operation. Description is empty, limiting confidence in the classification.
Risk signalsBulk/mass operation — affects multiple targets
Documented attack patterns abuse exactly the kind of access list-cost-allocation-tag-backfill-history 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 list-cost-allocation-tag-backfill-history:
{
"version": "1",
"default": "deny",
"tools": {
"list-cost-allocation-tag-backfill-history": {}
}
} list-cost-allocation-tag-backfill-history is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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list-cost-allocation-tag-backfill-history. 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 list-cost-allocation-tag-backfill-history: 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.
list-cost-allocation-tag-backfill-history 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 list-cost-allocation-tag-backfill-history 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 list-cost-allocation-tag-backfill-history. 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.
list-cost-allocation-tag-backfill-history 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.