List all available files across ontologies, contexts, shapes, and examples with descriptions
AI agents call list_all_files to retrieve information from Earth616 Vocabulary Service without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a query operation that lists and describes existing files without creating, modifying, deleting, or executing anything. It has no side effects and fits the Read category for data retrieval. The severity is low because listing files in a vocabulary/documentation service poses minimal risk—it exposes structure but not sensitive operations.
From the tool's definition Tool name 'list_all_files' and description 'List all available files across ontologies, contexts, shapes, and examples with descriptions' indicate a retrieval/enumeration operation with no modification or deletion of data.
Attacks that exploit this kind of access
List all available files across ontologies, contexts, shapes, and examples with descriptions. It is categorised as a Read tool in the Earth616 Vocabulary Service MCP Server, which means it retrieves data without modifying state.
Register the Earth616 Vocabulary Service MCP server in PolicyLayer and add a rule for list_all_files: 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 Earth616 Vocabulary Service. Nothing to install.
list_all_files 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_all_files 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_all_files. 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_all_files is provided by the Earth616 Vocabulary Service MCP server (la3d/mcp_vocabulary_service). 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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