AI agents call get_someday to retrieve information from Things 3 MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves task data from the Someday list in Things 3. It performs a read-only operation analogous to 'get' or 'fetch' with no capability to modify, delete, or execute actions. The low severity reflects minimal risk if misused by an AI agent—at worst, sensitive task titles or descriptions could be exposed, but no data is altered or actions are triggered.
From the tool's definition Tool name 'get_someday' and description 'Get todos from Someday list' indicate a retrieval operation with no side effects.
Documented attack patterns abuse exactly the kind of access get_someday gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Things 3 MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_someday:
{
"version": "1",
"default": "deny",
"tools": {
"get_someday": {}
}
}get_someday is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get todos from Someday list. It is categorised as a Read tool in the Things 3 MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Things 3 MCP Server MCP server in PolicyLayer and add a rule for get_someday: 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 Things 3 MCP Server. Nothing to install.
get_someday 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 get_someday 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 get_someday. 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.
get_someday is provided by the Things 3 MCP Server MCP server (rossshannon/things3-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 24 Things 3 MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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24 Things 3 MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.