AI agents call get_task_fields to retrieve information from Todos without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata (labels, custom fields, priority) associated with a task without creating, modifying, deleting, or executing any operations. It has no side effects and minimal blast radius if misused by an AI agent — the worst outcome would be exposure of task metadata already accessible within the system. This is a straightforward Read operation.
From the tool's definition Tool description states 'Export labels, custom fields, and priority metadata for a task' — this is a retrieval operation with no modification or execution of actions. The verb 'export' in this context means to retrieve and return data about a task's metadata.
Attacks that exploit this kind of access
Export labels, custom fields, and priority metadata for a task. It is categorised as a Read tool in the Todos MCP Server, which means it retrieves data without modifying state.
Register the Todos MCP server in PolicyLayer and add a rule for get_task_fields: 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 Todos. Nothing to install.
get_task_fields 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_task_fields 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_task_fields. 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_task_fields is provided by the Todos MCP server (@hasna/todos). 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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