List all indexed documents with their metadata.
AI agents call list_documents to retrieve information from BigContext MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a straightforward query operation that retrieves and displays document metadata. It performs no writes, deletes, executions, or financial operations. The blast radius is minimal—an agent can only discover what documents exist in the system, which is informational only.
From the tool's definition Tool name 'list_documents' and description 'List all indexed documents with their metadata' indicate retrieval of existing data with no modification or side effects.
Attacks that exploit this kind of access
List all indexed documents with their metadata. It is categorised as a Read tool in the BigContext MCP MCP Server, which means it retrieves data without modifying state.
Register the BigContext MCP server in PolicyLayer and add a rule for list_documents: 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 BigContext MCP. Nothing to install.
list_documents 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_documents 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_documents. 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_documents is provided by the BigContext MCP server (rixmerz/bigcontext_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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