List available versions (revision history) for a page. Returns version ids that can be used with restore_page_version.
AI agents call list_page_versions to retrieve information from Collectives without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns historical version metadata for a page without any side effects. It is purely informational and read-only. The fact that returned version ids can be used with restore_page_version (a separate tool) does not change the classification of this tool itself—it only reads data. No data is modified, deleted, or executed.
From the tool's definition Tool name 'list_page_versions' and description 'List available versions (revision history) for a page' indicate a retrieval operation. The description explicitly states it 'Returns version ids' with no modification or deletion of data.
Attacks that exploit this kind of access
List available versions (revision history) for a page. Returns version ids that can be used with restore_page_version. It is categorised as a Read tool in the Collectives MCP Server, which means it retrieves data without modifying state.
Register the Collectives MCP server in PolicyLayer and add a rule for list_page_versions: 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 Collectives. Nothing to install.
list_page_versions 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_page_versions 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_page_versions. 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_page_versions is provided by the Collectives MCP server (megamaced/nc_collectives-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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