AI agents call retrieve_work_item_activity to retrieve information from Plane without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves historical activity records for a work item, which is a read-only operation that queries existing data without creating, modifying, deleting, or executing any changes. It has minimal blast radius if misused by an AI agent—at worst, it could expose activity history the agent shouldn't access, but it cannot alter system state or cause destructive harm.
From the tool's definition Tool name 'retrieve_work_item_activity' and description 'Retrieve a specific activity for a work item' both indicate data retrieval with no modification or side effects.
Attacks that exploit this kind of access
Retrieve a specific activity for a work item. It is categorised as a Read tool in the Plane MCP Server, which means it retrieves data without modifying state.
Register the Plane MCP server in PolicyLayer and add a rule for retrieve_work_item_activity: 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 Plane. Nothing to install.
retrieve_work_item_activity 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 retrieve_work_item_activity 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 retrieve_work_item_activity. 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.
retrieve_work_item_activity is provided by the Plane MCP server (@makeplane/plane-mcp-server). 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.
Teams ship this data inside their own products. See what a licence covers →